Rotary Speed Brake Actuation System ICA Supplement

Transcription

1 CESSNA AIRCRAFT COMPANY AIRCRAFT DIVISION WICHITA, KANSAS Rotary Speed Brake Actuation System ICA Supplement MODEL NO: 510 SUPPLEMENT NO: ICA SUPPLEMENT DATE: 04/28/2009 PREPARED BY: CHECKED BY: APPROVED BY: APPROVED BY: Original Signed By: NRG Original Signed By: GDH Original Signed By: PJK Original Signed By: MDD

2 Cessna Aircraft Company Page i REVISIONS Rev Date By Approved By - 04/28/2009 See Title Sheet See Title Sheet ECR Section All Description Initial Release Rev Date By Approved By A 07/23/2009 Neil Grayson GDH PJK MDD ECR Section Figure 2 Figures 5 & 6 Description Revised to be applicable for new hardware configuration. Updated troubleshooting section to include new figures. Updated figure to show new hardware configuration. Added figures for troubleshooting. Rev Date By Approved By B 12/11/2009 Neil Grayson GDH PJK MDD ECR Section Table 1 Description Effectivity And On was EC And On

3 Cessna Aircraft Company Page ii Rev Date By Approved By C 02/08/2010 Neil Grayson PJK MDD ECR & Section Description Table 2 Added Push/Pull Spring Scale. Table 5 Added Table 5 Speed Brake Installation Parts List. Figure 1 Item number callouts were part name callouts. Figure 2 Figure & -24 WIRE BUNDLE ASSY - SPEED BRAKES - SWITCH was NI8U-M12-AN6X PROXIMITY SWITCH 4. Re-arranged Sections 4.1 and 4.2 so that the proximity switch removal/installation comes before the actuator removal/installation Added detailed instructions on installing the proximity switch Added NOTE: The proximity switch should be installed before the actuator is connected to the speed brake panels Added instructions to adjust proximity switch Removed Make sure that the speed brake system operates without too much noise. Rev Date By Approved By D 02/19/2010 Neil Grayson ECR & Section Description Separated & -24 into LH & RH descriptions; were listed together as one line item Added steps (e) and (f) Added with the bonding jumper between the support bracket and the hardware Added Figure 2 reference. Moved bonding jumper installation up to step 3. Added safety wire installation step.

4 Cessna Aircraft Company Page iii CONTENTS Section / Title Page REVISIONS... i CONTENTS... iii TABLES... v FIGURES... v APPENDICES... v 1. INTRODUCTION Purpose APPLICABILITY Effectivity Complete ICA Documents DESCRIPTION AND OPERATION Description Speed Brake Components Extension and Retraction Operation Speed Brake Control System Electrical System System Components Rotary Actuator - Speed Brake, LH Rotary Actuator - Speed Brake, RH Upper Speed Brake Assy, LH Upper Speed Brake Assy, RH Lower Speed Brake Assy, LH Lower Speed Brake Assy, RH Wire Bundle Assy - Speed Brakes - LH Switch Wire Bundle Assy - Speed Brakes - RH Switch Aircraft Wiring Wire Routing General... 5

5 Cessna Aircraft Company Page iv Wire Routing Tailcone Wire Routing Wing REMOVAL AND INSTALLATION Speed Brake Proximity Switch Removal/Installation Rotary Speed Brake Actuator Removal/Installation Speed Brake Control Switch Removal/Installation MAINTENANCE AND SPECIAL TOOLS Maintenance Rotary Speed Brake Actuation System Line Replaceable Units (LRU) System Wiring TESTING, RETURN TO SERVICE AND TROUBLESHOOTING Adjustment/Test Hold-Down Load Adjustment Speed Brake Retracted Panel Position Adjustment Speed Brake System Test Inspection/Check Access Detailed Inspection of the Speed Brake System Troubleshooting Speed Brake Will Not Move SPD BRK EXTEND CAS Message AIRWORTHINESS LIMITATIONS Limitations and Replacement Intervals Mandatory replacement times Mandatory inspection intervals Mandatory inspection procedures

6 Cessna Aircraft Company Page v TABLES Table / Title Page Table 1 Installation ICA Effectivity... 2 Table 2 Tools and Equipment Table 3 Speed Brake Test Box Initial Switch Positions Table 4 Circuit Breakers Table 5 Speed Brake Installation Parts List FIGURES Figure / Title Page Figure 1 Speed Brake Installation Figure 2 Speed Brake Panel Connection Figure 3 Speed Brake Retract Proximity Switch Figure 4 Speed Brake Test Box Figure 5 Troubleshooting Speed Brake Will Not Move Figure 6 Troubleshooting Speed Brake Extend CAS Message APPENDICES Appendix / Title Page Appendix 1 Wiring Diagrams... 29

7 Cessna Aircraft Company Page vi This page blank.

8 Cessna Aircraft Company Page 1 1. INTRODUCTION 1.1. Purpose The purpose of this Instructions for Continued Airworthiness (ICA) Supplement is to provide the maintenance technician with the information necessary to ensure the correct functionality and performance of the Rotary Speed Brake Actuation System on the Cessna Model This supplemental document is designed to satisfy the required 14 CFR Instructions for Continued Airworthiness requirements associated with this installation. This document is a supplement to the Model 510 Maintenance Manual and may or may not be incorporated If this information is incorporated into the Model 510 Maintenance Manual, the maintenance manual shall take precedence over this supplemental document. Refer to the application ATA chapter and section of the respective Maintenance Manual for the status of all ICA Supplements applicable to your model. NOTE: This document must be placed with the aircraft operator s Technical Library CD-ROM or Maintenance Manual and incorporated into the operator s scheduled maintenance program.

9 Cessna Aircraft Company Page 2 2. APPLICABILITY 2.1. Effectivity This Instructions for Continued Airworthiness (ICA) supplement is effective for the following aircraft model(s) and serialization where this Rotary Speed Brake Actuation System is installed: Beginning Ending Model Effectivity Effectivity and On Table 1 Installation ICA Effectivity B 2.2. Complete ICA Documents The following document(s), in conjunction with this supplement, constitute the Instructions for Continued Airworthiness for the Rotary Speed Brake Actuation System. All items must be available to the operator at initial delivery. Model 510 Wiring Diagram Manual 3. DESCRIPTION AND OPERATION 3.1. Description Speed Brake Components Speed brakes are installed on the top and bottom surface of each wing, forward of the flaps. The speed brake system consists of one top and bottom panel per wing, and one electric actuator per wing. Two thumb switches, one installed on the left side of the left throttle lever knob, and one installed on the right side of the right throttle lever knob, control actuation of the speed brakes. During descent and landing, the pilot can extend the speed brakes, which create drag, to help slow the airplane Extension and Retraction The panels are always in one of two positions: extended, or retracted. There are no set positions between extended or retracted. The rotational travel of the output shaft on the electric actuator is controlled through hard stops internal to the motor

10 Cessna Aircraft Company Page 3 of the actuator, which are fixed. The output shaft rotates 180 in one direction to extend the panels, and 180 in the opposite direction to retract the panels Operation Speed Brake Control System The speed brakes are controlled by a momentary thumb switch installed on each throttle lever knob. Move the switch aft to the EXT position to extend the speed brakes and to the RET position to retract them. The speed brakes will extend when the momentary thumb switch is moved to the EXT position and when the throttle levers are at 85% throttle lever angle (TLA) or less. If the speed brakes are extended, and the throttle levers are moved to more than 85% TLA, the speed brakes will automatically retract Electrical System The speed brake actuator is supplied with 28 VDC via the circuit breaker panel in the cockpit. The pilot or copilot activates one of the momentary extend/retract switches, which supplies a ground, thus activating the actuator. All electronic controls for the actuator are located within the actuator housing itself. A proximity switch is used to inform the pilot that the speed brakes are extended. This proximity switch is installed on the trailing edge of a wing rib, inboard of each actuator. It senses a target plate installed on the upper speed brake panel. This proximity switch is configured to close (give a ground) when the target is sensed. The white SPD BRK EXTEND message is shown on the Engine Indication and Crew Alerting System (EICAS) display when the left or right side retract proximity switch is open System Components ROTARY ACTUATOR - SPEED BRAKE, LH Electric rotary actuator. Located on the LH wing, forward of the flaps, and between the upper and lower speed brake panels ROTARY ACTUATOR - SPEED BRAKE, RH Electric rotary actuator. Located on the RH wing, forward of the flaps, and between the upper and lower speed brake panels.

11 Cessna Aircraft Company Page UPPER SPEED BRAKE ASSY, LH Upper speed brake panel assembly including the panel structure, hinge halves, shims, and actuator attachment lug. Located on the LH wing, directly above the LH speed brake actuator UPPER SPEED BRAKE ASSY, RH Upper speed brake panel assembly including the panel structure, hinge halves, shims, and actuator attachment lug. Located on the RH wing, directly above the RH speed brake actuator LOWER SPEED BRAKE ASSY, LH Lower speed brake panel assembly including the panel structure, hinge halves, shims, and actuator attachment lug. Located on the LH wing, directly below the LH speed brake actuator LOWER SPEED BRAKE ASSY, RH Lower speed brake panel assembly including the panel structure, hinge halves, shims, and actuator attachment lug. Located on the RH wing, directly below the RH speed brake actuator WIRE BUNDLE ASSY - SPEED BRAKES - LH SWITCH C,D Retract proximity switch, used to annunciate the white SPD BRK EXTEND message on the Engine Indication and Crew Alerting System (EICAS) display when the left or right side retract proximity switch is open. Located on the inboard rib of the LH speed brake area WIRE BUNDLE ASSY - SPEED BRAKES - RH SWITCH Retract proximity switch, used to annunciate the white SPD BRK EXTEND message on the Engine Indication and Crew Alerting System (EICAS) display when the left or right side retract proximity switch is open. Located on the inboard rib of the RH speed brake area.

12 Cessna Aircraft Company Page Aircraft Wiring Wire Routing General Refer to Model 510 Wiring Diagram Manual for general wire routing Wire Routing Tailcone Refer to for wire routing definition in the tailcone. This includes the electrical connection to the J-box Wire Routing Wing Refer to for wire routing definition in the wings. This includes the electrical connections to each actuator, as well as each retract proximity switch.

13 Cessna Aircraft Company Page 6 4. REMOVAL AND INSTALLATION This section gives removal and installation procedures for the Rotary Speed Brake Actuation system. The two components of the speed brake control system are the speed brake actuator, and the speed brake proximity switch. Refer to Table 2 for a list of special tools and equipment needed for adjustment and testing the speed brake system. For maintenance procedures on the speed brake panels, refer to Chapter 57, Speed Brakes Maintenance Practices. WARNING: CAUTION: Be careful when you do work near the speed brakes and remove electrical power from the airplane if possible. The speed brakes are electrically actuated and can cause injury to personnel. Do not operate the speed brake system through a complete cycle (extend and retract) more than 5 times in 3 minutes. Damage can occur to the speed brake actuator Speed Brake Proximity Switch Removal/Installation C (Refer to Figures 1 & 3) NOTE: The removal and installation procedures are typical for the left and right speed brake proximity switches Remove the Speed Brake Proximity Switch. 1. Extend the speed brake actuators and the wing flaps. (a) Set the DC POWER battery switch (SI004) in the cockpit to BATT. (b) Move the SPD BRK switch (SI039) on the left or right throttle lever to the EXT position. (c) Move the flap control lever to the LAND detent. (d) Set the DC POWER battery switch (SI004) to the OFF position. (e) Disengage the L SPEED BRAKE (HC007) circuit breaker on the pilot s circuit breaker panel and/or the R SPEED BRAKE (HF007) circuit breaker on the copilot s circuit breaker panel.

14 Cessna Aircraft Company Page 7 (f) Disengage the FLAPS circuit breaker (HC006) on the pilot s circuit breaker panel in the cockpit. 2. Disconnect the proximity switch electrical connector (JL023 left, JR022 right) from the wing wire bundle. 3. Remove the proximity switch from the wing rib Install the Speed Brake Proximity Switch. 1. Put the proximity switch in position on the wing rib. 2. Connect the proximity switch electrical connector (JL023 left, JR022 right) to the wing wire bundle. 3. Install the proximity switch on the wing rib. C,D (a) Disconnect the upper and lower speed brake panels from the actuator connecting links. Keep all hinges that attach the panel to the wing structure intact. (b) Close the upper speed brake panel by hand, and gain access to the proximity switch through the disconnected lower panel. (c) With the upper speed brake panel closed, set the proximity switch gap per Figure 3. The switch can be adjusted inboard/outboard by moving the retaining nuts on both sides of the wing rib. The target on the upper panel can be adjusted up/down by loosening the set screws. (d) Move the upper and lower speed brake panels by hand through full travel to check clearances, particularly between the proximity switch and the target. (e) Re-connect the upper and lower speed brake panels to the actuator connecting links, using the existing hardware. (Refer to Figure 2) (f) Safety with wire the hardware that attaches each panel to the connecting link. Reference Chapter 20, Safetying Maintenance Practices of the 510 Maintenance Manual. 4. Retract the speed brake actuators and the wing flaps. (a) Engage the L SPEED BRAKE (HC007) circuit breaker on the pilot s circuit breaker panel and/or the R SPEED BRAKE (HF007) circuit breaker on the copilot s circuit breaker panel in the cockpit.

15 Cessna Aircraft Company Page 8 (b) Engage the FLAPS circuit breaker (HC006) on the pilot s circuit breaker panel in the cockpit. (c) Set the DC POWER battery switch (SI004) in the cockpit to BATT. (d) Move the SPD BRK switch (SI039) on the left or right throttle lever to the RET position. (e) Move the flap control lever to the UP detent. (f) Set the DC POWER battery switch (SI004) to the OFF position. 5. Do the Speed Brake Retracted Panel Position Adjustment. Refer to the Testing, Return to Service, and Troubleshooting Adjustment/Test section of this supplement Rotary Speed Brake Actuator Removal/Installation (Refer to Figures 1 & 2) NOTE: The proximity switch should be installed before the actuator is connected to the speed brake panels. This will allow access through the lower side of the wing, to set the distance between the switch and the target on the upper panel. C NOTE: The removal and installation procedures are typical for the left and right speed brake actuators Remove the Rotary Actuator Speed Brake. 1. Extend the speed brake actuators and the wing flaps. (g) Set the DC POWER battery switch (SI004) in the cockpit to BATT. (h) Move the SPD BRK switch (SI039) on the left or right throttle lever to the EXT position. (i) Move the flap control lever to the LAND detent. (j) Set the DC POWER battery switch (SI004) to the OFF position. (k) Disengage the L SPEED BRAKE (HC007) circuit breaker on the pilot s circuit breaker panel and/or the R SPEED BRAKE (HF007) circuit breaker on the copilot s circuit breaker panel. (l) Disengage the FLAPS circuit breaker (HC006) on the pilot s circuit breaker panel in the cockpit.

16 Cessna Aircraft Company Page 9 2. Disconnect the speed brake actuator electrical connector (PL025 left, PR024 right). 3. Disconnect the speed brake connecting links from the upper and lower speed brake panels. (Refer to Figure 2) (a) Remove the safety wire from the hardware that attaches each panel to the connecting link. (b) Remove hardware that attaches each panel to the connecting link. Retain hardware with the actuator. 4. Remove the bolts that connect the speed brake actuator to the wing rib (outboard). 5. Remove the bolts that connect the speed brake actuator to the support bracket (inboard). 6. Remove the screws that connect the support bracket (inboard) to the spar. NOTE: This will also remove the bonding jumper from the speed brake panel. 7. Remove the speed brake actuator from the airplane Install the Rotary Actuator Speed Brake. 1. Use steel wool to clean the installation surfaces, as necessary. 2. Put the speed brake actuator in position in the wing. 3. Install the support bracket (inboard) to the wing spar with the screws, with the bonding jumper between the support bracket and the hardware. 4. Install the bolts that connect the speed brake actuator to the support bracket (inboard). 5. Install the bolts that connect the speed brake actuator to the wing rib (outboard). 6. Connect the speed brake actuator connecting links to the upper and lower speed brake panels. (Refer to Figure 2) (a) Install the hardware that attaches the connecting link to the speed brake panel. (b) Safety with wire the hardware that attaches each panel to the connecting link. Reference Chapter 20, Safetying Maintenance Practices of the 510 Maintenance Manual. A D D D

17 Cessna Aircraft Company Page 10 NOTE: If a new speed brake actuator is being installed, install new bolt and bushing packaged with the actuator. 7. Connect the speed brake actuator electrical connector (PL025 left, PR024 right). 8. Make sure that the speed brake actuator is electrically bonded (Type II) to wing structure. Refer to 510 Maintenance Manual Chapter 20, Electrical Bond Maintenance Practices. 9. Retract the speed brake actuators and the wing flaps. (a) Engage the L SPEED BRAKE (HC007) circuit breaker on the pilot s circuit breaker panel and/or the R SPEED BRAKE (HF007) circuit breaker on the copilot s circuit breaker panel in the cockpit. (b) Engage the FLAPS circuit breaker (HC006) on the pilot s circuit breaker panel in the cockpit. (c) Set the DC POWER battery switch (SI004) in the cockpit to BATT. (d) Move the SPD BRK switch (SI039) on the left or right throttle lever to the RET position. (e) Move the flap control lever to the UP detent. (f) Set the DC POWER battery switch (SI004) to the OFF position. 10. Do the Speed Brake System Test. Refer to the Testing, Return to Service, and Troubleshooting Adjustment/Test section of this supplement Speed Brake Control Switch Removal/Installation Refer to the Speed Brake Control System Maintenance Practices of the 510 Maintenance Manual.

18 Cessna Aircraft Company Page MAINTENANCE AND SPECIAL TOOLS 5.1. Maintenance Rotary Speed Brake Actuation System Line Replaceable Units (LRU) Table 2 gives a list of the special tools and equipment that is used to complete the maintenance procedures given in this chapter System Wiring Refer to the Wiring Diagram Manual, Chapter 20, Standard Practices, for wiring maintenance requirements and practices. NAME NUMBER MANUFACTURER USE Kell-Strom Tool Inc. To measure the angle of Digital Inclinometer KS Church Street the speed brake panels Wethersfield CT To perform tests of the Speed Brake Test Box Cessna Aircraft Company speed brake system To measure hold-down Push/Pull Spring Scale Commercially Available load of the upper speed (0-30 lbs) brake panels Table 2 Tools and Equipment C 6. TESTING, RETURN TO SERVICE AND TROUBLESHOOTING 6.1. Adjustment/Test This section gives adjustment and test procedures for the Rotary Speed Brake Actuation system. Refer to Table 2 for a list of special tools and equipment needed for adjustment and testing the speed brake system. WARNING: Be careful when you do work near the speed brakes and remove electrical power from the airplane if possible. The speed brakes are electrically actuated and can cause injury to personnel.

19 Cessna Aircraft Company Page 12 CAUTION: Do not operate the speed brake system through a complete cycle (extend and retract) more than 5 times in 3 minutes. Damage can occur to the speed brake actuator Hold-Down Load Adjustment NOTE: The hold-down load is the load necessary to lift the upper speed brake panel one panel skin thickness above the wing loft (approximately 0.08 inch, or 2.03 mm). The hold-down load adjustment procedure is typical for the left and right speed brake systems Remove electrical power from the airplane Disengage the L SPEED BRAKE (HC007) circuit breaker on the pilot s circuit breaker panel and/or the R SPEED BRAKE (HF007) circuit breaker on the copilot s circuit breaker panel Disconnect the electrical connector for the retract proximity switch (JL023 left, or JR022 right) from the wing wire bundle Disconnect the electrical connector (PL025 left, or PR024 right) from the speed brake actuator Place the switches on the speed brake test box in the positions listed in Table 3. SWITCH LABEL DESCRIPTION INITIAL POSITION S1 Extend/Retract OFF S2 Brake Released/Engaged Either* S3 Throttle >85% OFF S4 Manual/Auto AUTO *This function is disabled for this configuration. Table 3 Speed Brake Test Box Initial Switch Positions Connect the speed brake test box to the electrical connectors for either the left or right speed brake that follow: Left speed brake: P3 on the speed brake test box to PL025. P4 on the speed brake test box to JL Right speed brake: P2 on the speed brake test box to PR024. P4 on the speed brake test box to JR022.

20 Cessna Aircraft Company Page Apply electrical power to the speed brake test box Use the speed brake test box to retract the speed brake actuator. NOTE: The operation to extend the speed brake actuator is typical, using the same switch. This configuration only utilizes a retract proximity switch that is closed when the speed brake panels are retracted. Therefore, the Extend light on the speed brake test box is disabled for this configuration Temporarily move the S1 (Extend/Retract) on the speed brake test box to the Retract position. NOTE: Switch activation is temporary; it is not necessary to hold the switch until the speed brake stops moving. Movement will stop when the actuator impacts the hard stops internal to the actuator With the speed brakes retracted, use tape to attach a spring scale to the trailing edge of the upper speed brake panel With the spring scale, pull up on the top speed brake panel until there is approximately 0.08 inch (2.03 mm) distance between the upper speed brake panel and the top wing skin The hold-down load must be 20.0 pounds, +5.0 or -5.0 pounds (89.0 N, or N) If the hold-down load is not 20.0 pounds, +5.0 or -5.0 pounds, add/remove shims as necessary (Figure 2). If shims are removed, the hold-down load will increase. If shims are added, the hold-down load will decrease Hold-down load is not required for the lower speed brake panel. Verify that the lower speed brake panel just makes contact with the lower wing skin when the actuator retracts. If not, add/remove shims as necessary Repeat adjustments for opposite side as necessary Install inclinometers on the top and bottom panels of the speed brakes, perpendicular to the hinge lines. Use tape to hold the inclinometers to the speed brake panels Zero the inclinometers, and using the speed brake test box, extend the actuator.

21 Cessna Aircraft Company Page Ensure deflection of LH and RH upper panels is within 1 degree of each other, keeping the hold-down load in the range specified above Repeat for lower panels. Hold-down load is not required for the lower panel Remove the spring scale, inclinometers and tape from the top speed brake panel Speed Brake Retracted Panel Position Adjustment (Refer to Figure 3) NOTE: The speed brake retracted panel position adjustment is typical for the left and right speed brake panels. CAUTION: Do not operate the speed brake system through a complete cycle (extend and retract) more than 5 times in 3 minutes. Damage can occur to the speed brake actuator Use the speed brake test box to retract the speed brake actuator. NOTE: The operation to retract the speed brake actuator is typical, using the same switch. This configuration only utilizes a retract proximity switch that is closed when the speed brake panels are retracted. Therefore, the Extend light on the speed brake test box is disabled for this configuration Temporarily move the S1 (Extend/Retract) on the speed brake test box to the Retract position. NOTE: Switch activation is temporary; it is not necessary to hold the switch until the speed brake stops moving. Movement will stop when the actuator impacts the hard stops internal to the actuator Remove electrical power from the speed brake test box Adjust the retract target plate Loosen the screws on the retract target plate to adjust it During installation (refer to Section 4), the gap between the retract target plate and the retract proximity switch tip is set per Figure 3. This distance can be adjusted by loosening the retaining nuts on both C

22 Cessna Aircraft Company Page 15 sides of the wing rib, and moving the proximity switch inboard/outboard Move the retract target plate up or down to close the retract proximity switch at the same time the top speed brake panel touches the top of the wing skin Disconnect the speed brake test box from the electrical connectors for either the left or right speed brake that follow: Left speed brake: P3 on the speed brake test box from PL025. P4 on the speed brake test box from JL Right speed brake: P2 on the speed brake test box from PR024. P4 on the speed brake test box from JR Connect the electrical connector (PL025 left, or PR024 right) to the speed brake actuator Connect the electrical connector (JL023 left, or JR022 right) to the wing wire bundle Engage the L SPEED BRAKE (HC007) circuit breaker on the pilot s circuit breaker panel and the R SPEED BRAKE (HF007) circuit breaker on the copilot s circuit breaker panel Speed Brake System Test Connect external power to the airplane In the cockpit, set the DC POWER battery switch (SI004) to the BATT position Set the avionics power switch (SI007) to the AVN PWR position Engage the circuit breakers shown in Table Make sure that the L FUEL BOOST (SI011) and R FUEL BOOST (SI012) switches in the cockpit are in the OFF position Put the left and right throttle levers in the CUTOFF detent Make sure that the speed brake panels are in the fully retracted position Do an operational check of the pilot s speed brake control switch (SI039). CAUTION: Do not operate the speed brake system through a complete cycle (extend and retract) more than 5 times in 3 minutes. Damage can occur to the speed brake actuator.

23 Cessna Aircraft Company Page Move the SPD BRK switch (SI039) on the left throttle lever to the EXT position to extend the speed brake panels On the multi-function display (MFD), make sure that the white SPD BRK EXTEND message comes on the Engine Indication and Crew Alerting System (EICAS). NOTE: It may be necessary to scroll down to get to this message Make sure that the speed brake panels extended Move the left throttle lever to the CLB detent, or throttle lever angle (TLA) 48.5 degrees, +2.0 or -2.0 degrees Make sure that the speed brake panels retracted Make sure that the white SPD BRK EXTEND message goes off. If not, revisit the Speed Brake Retracted Panel Position Adjustment section Put the left throttle lever in the IDLE detent Do an operational check of the copilot s speed brake control switch (SI039). CAUTION: Do not operate the speed brake system through a complete cycle (extend and retract) more than 5 times in 3 minutes. Damage can occur to the speed brake actuator Move the SPD BRK switch (SI039) on the right throttle lever to the EXT position to extend the speed brake panels On the multi-function display (MFD), make sure that the white SPD BRK EXTEND message comes on the Engine Indication and Crew Alerting System (EICAS). NOTE: It may be necessary to scroll down to get to this message Make sure that the speed brake panels extended Move the right throttle lever to the CLB detent, or throttle lever angle (TLA) 48.5 degrees, +2.0 or -2.0 degrees Make sure that the speed brake panels retracted Make sure that the white SPD BRK EXTEND message goes off. If not, revisit the Speed Brake Retracted Panel Position Adjustment section.

24 Cessna Aircraft Company Page Put the right throttle lever in the IDLE detent Move the SPD BRK switch (SI039) on the left throttle lever to the EXT position to extend the speed brake panels. When the speed brake panels start to move, move the SPD BRK switch to the RET position. Make sure that the speed brakes immediately move in the opposite direction (retract) Move the SPD BRK switch (SI039) on the left throttle lever to the EXT position to extend the speed brake panels Move the SPD BRK switch (SI039) on the left throttle lever to the RET position to retract the speed brake panels. When the speed brake panels start to move, move the SPD BRK switch to the EXT position. Make sure that the speed brakes do not immediately move in the opposite direction (extend). The speed brake panels must continue to retract Move the SPD BRK switch (SI039) on the right throttle lever to the EXT position to extend the speed brake panels. When the speed brake panels start to move, move the SPD BRK switch to the RET position. Make sure that the speed brakes immediately move in the opposite direction (retract) Move the SPD BRK switch (SI039) on the right throttle lever to the EXT position to extend the speed brake panels Move the SPD BRK switch (SI039) on the right throttle lever to the RET position to retract the speed brake panels. When the speed brake panels start to move, move the SPD BRK switch to the EXT position. Make sure that the speed brakes do not immediately move in the opposite direction (extend). The speed brake panels must continue to retract Operate the speed brake system through its full travel and make sure that all components operate freely and correctly Put the left and right throttle levers in the CUTOFF detent Set the avionics power switch (SI007) in the cockpit to the OFF position Set the DC POWER battery switch (SI004) to the OFF position. CAUTION: Disconnect external power when not in use to prevent an accidental discharge of the battery. C Disconnect external power from the airplane.

25 Cessna Aircraft Company Page 18 CIRCUIT BREAKER NAME REFERENCE DESIGNATOR LOCATION L SPEED BRAKE HC007 Pilot s Circuit Breaker Panel LH ELE #1 HZ113 Aft Power Junction Box (J-Box) R SPEED BRAKE HF007 Copilot s Circuit Breaker Panel RH ELE #1 HZ112 Aft Power J-Box R CH A FADEC HZ072 Aft Power J-Box L CH B FADEC HZ074 Aft Power J-Box R CH B FADEC HZ073 Aft Power J-Box L CH A FADEC HZ075 Aft Power J-Box SPEED BRAKE HZ103 Aft Power J-Box NAV IAU 1 PRIM HC029 Pilot s Circuit Breaker Panel PFD 1 PRIM HC028 Pilot s Circuit Breaker Panel AVN COOL HF035 Copilot s Circuit Breaker Panel MFD PRIM HF033 Copilot s Circuit Breaker Panel NAV IAU 2 PRIM HF028 Copilot s Circuit Breaker Panel PFD 2 PRIM HF027 Copilot s Circuit Breaker Panel OVERVOLTAGE HT001 Aft Power J-Box (Ext Power) Table 4 Circuit Breakers 6.2. Inspection/Check This section gives all necessary inspection procedures for the speed brake control system. It contains inspection, and functional check data. For a list of tools and equipment, refer to 510 Maintenance Manual Flight Controls General, as well as Table 2 of this supplement Access Put the DC POWER battery switch (SI004) on the BATT position Engage the L SPEED BRAKE circuit breaker (HC007) on the pilot s circuit breaker panel Engage the R SPEED BRAKE circuit breaker (HF007) on the copilot s circuit breaker panel.

26 Cessna Aircraft Company Page Move the SPD BRK switch (SI039) on either LH or RH throttle lever to the EXT position to extend the speed brake actuators Put the DC POWER battery switch (SI004) in the OFF position Detailed Inspection of the Speed Brake System Examine the speed brake actuators, upper and lower speed brake panels, hinges, connecting links, and bonding jumpers for correct installation, corrosion, cracks or other damage If the actuator has experienced any type of overload condition, the shoulder bolts that connect each panel to the actuator need to be removed from the arms and replaced. This should be done even if the bolts themselves did not fracture and there is no visible deformation of the bolts With the bolts removed, examine the connecting links for any damage that may have resulted from overloading of the bolts. If visible deformation or damage is present on the connecting links, they need to be replaced. If no damage is present, the connecting links can be used and only the shoulder bolts need to be replaced Put the DC POWER battery switch in the BATT position Move the SPD BRK switch (SI039) on either LH or RH throttle lever to the RET position to retract the speed brake actuators Put the DC POWER battery switch in the OFF position Troubleshooting Speed Brake Will Not Move. A If the speed brake will not extend or retract, review the troubleshooting tree in Figure SPD BRK EXTEND CAS Message If the SPD BRK EXTEND CAS message is illuminated in the cockpit when the speed brakes are in the retracted position, review section Speed Brake Retracted Panel Position Adjustment of this supplement, as well as the troubleshooting tree in Figure 6.

27 Cessna Aircraft Company Page AIRWORTHINESS LIMITATIONS 7.1. Limitations and Replacement Intervals Cessna Aircraft Company Model 510 Maintenance Manual, Chapter 4, Airworthiness Limitations for Citation airplanes, contains the system and airframe limitations for the Model 510. NOTE: The Airworthiness Limitations section is FAA-approved and specifies maintenance required under Section and of Title 14 Code of Federal Regulations, unless an alternative program has been FAA approved. This system is has no mandatory replacement time, inspection interval, or structural inspection procedures, and has no impact on Cessna Aircraft Company Model 510 Maintenance Manual, Chapter 4 Airworthiness Limitations for Citations Mandatory replacement times. 1. None Mandatory inspection intervals. 1. None Mandatory inspection procedures. 1. None.

28 Cessna Aircraft Company Page 21 Figure 1 Speed Brake Installation C

29 Cessna Aircraft Company Page 22 Figure 2 Speed Brake Panel Connection A,C

30 Cessna Aircraft Company Page 23 Figure 3 Speed Brake Retract Proximity Switch C

31 Cessna Aircraft Company Page 24 ITEM PART NUMBER NOMENCLATURE UNITS PER ASSY ROTARY ACTUATOR - SPEED BRAKE - LH ML ROTARY ACTUATOR - SPEED BRAKE - RH 01 MR OTBD SUPPORT BRACKET - LH OTBD SUPPORT BRACKET - RH 01 5 AN3-3A BOLT 04 6 NAS1149F0332P WASHER SUPPORT ASSY - LH SUPPORT ASSY - RH INBD BRACKET ASSY - LH INBD BRACKET ASSY - RH AN3-3A BOLT NAS1149F0332P WASHER AN3-5A BOLT NAS1149F0332P WASHER WBSA - SPEED BRAKES - LH 01 PL WBSA - SPEED BRAKES - RH 01 PR UPPER SPEED BRAKE ASSY - LH UPPER SPEED BRAKE ASSY - RH LUG ASSY - SPEED BRAKE - UPPER LOWER SPEED BRAKE ASSY - LH LOWER SPEED BRAKE ASSY - RH LUG ASSY - SPEED BRAKE - LOWER SHIM - SPEED BRAKE A/R 24 2R BOLT - CONNECTING LINK R BUSHING - CONNECTING LINK R NUT, # CONNECTING LINK NAS SCREW MS BB6 JUMPER ASSY MS SCREW NAS1149F0332P WASHER MS NUT WBSA - SPEED BRAKES - LH SWITCH WBSA - SPEED BRAKES - RH SWITCH TARGET MS SCREW NAS1149FN832P WASHER 02 - Item Not Illustrated Table 5 Speed Brake Installation Parts List C

32 Cessna Aircraft Company Page 25 Figure 4 Speed Brake Test Box

33 Cessna Aircraft Company Page 26 SPEED BRAKE WILL NOT MOVE ARE THE CORRESPONDING SPEED BRAKE CIRCUIT BREAKER PUSHED IN? NO ENGAGE CIRCUIT BREAKERS YES YES ARE THE THROTTLES ABOVE 85%? NO REMOVE CONNECTOR TO SPEED BRAKE ACTUATOR. DOES PIN C HAVE POWER? NO YES LOWER THROTTLE LEVERS SO THAT THEY ARE BELOW 85%. VERIFY THAT PINS K AND H RECEIVE A GROUND WHEN THE SPEED BRAKE SWITCH IS PLACED IN THE RETRACT POSITION. IS GROUND PRESENT? YES IS PIN M GROUNDED? NO TROUBLESHOOT WIRING NO YES REPLACE SPEED BRAKE ACTUATOR NO VERIFY WIRING AND REPLACE SWITCH IF WIRING IS GOOD. YES NO VERIFY THAT PINS B AND H RECEIVE A GROUND WHEN THE SPEED BRAKE SWITCH IS PLACED IN THE EXTEND POSITION. IS GROUND PRESENT? YES VERIFY THAT PIN F DOES NOT HAVE A GROUND. DOES PIN F HAVE A GROUND? YES NO VERIFY THAT PIN H DOES NOT HAVE A GROUND WHEN THE SWITCH IS IN THE OFF POSITION. DOES PIN H HAVE A GROUND? NO VERIFY THAT PINS B AND K DO NOT RECEIVE A GROUND AT THE SAME TIME WHEN THE SPEED BRAKE SWITCH IS PLACED IN THE EXTEND OR RETRACT POSITION. DO PINS B AND K HAVE A GROUND AT THE SAME TIME? YES VERIFY WIRING AND REPLACE SWITCH IF WIRING IS GOOD. VERIFY WIRING. IF WIRING IS GOOD, TROUBLESHOOT FUEL CARD. Figure 5 Troubleshooting Speed Brake Will Not Move A

34 Cessna Aircraft Company Page 27 SPEED BRAKE EXTEND CAS MESSAGE YES ARE THE LED S ON THE PROX SENSOR TURNING ON? NO VERIFY WIRING FROM PIN A OF PROX SENSOR CONNECTOR TO THE GEA. IS WIRING GOOD? YES IS PROX SENSOR CIRCUIT BREAKER ENGAGED? NO ENGAGE CIRUIT BREAKER NO CORRECT WIRING INJECT A GROUND INTO PIN A OF THE SHIP SIDE PROX SENSOR CONNECTOR. DOES THE CAS MESSAGE GO AWAY WITH THE GROUND? YES IS TARGET ON EACH UPPER PANEL RIGGED PROPERLY? NO RIG TARGET NO YES YES REPLACE GEA YES IS PIN B OF PROX SENSOR CONNECTOR RECEIVING A GROUND? NO REPLACE PROX SENSOR VERIFY WIRING Figure 6 Troubleshooting Speed Brake Extend CAS Message A

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36 Cessna Aircraft Company Page 29 Appendix 1 Wiring Diagrams

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