FLIGHT SIMULATOR SYSTEMS 1. GENERAL This section describes systems required for simulator operation. This equipment includes the Cirrus Landing Gear Simulator (CLGS). 2. DESCRIPTION The intent of the CLGS system is to replicate the appearance, style, and general function of a typical retractable landing gear system. The CLGS can be manipulated in flight to simulate a variety of possible system failures including incomplete gear extension/retraction, indicator system failures, and the use of emergency gear extension. A. Cirrus Landing Gear Simulator (CLGS) The airplane is equipped with a Cirrus Landing Gear Simulator (CLGS) designed to be used in flight to facilitate training on the operation of retractable landing gear systems. The CLGS system consists of the Pilot Interface Panel, Instructor Fault Select Panel, Warning Horn Push Button, Logic Unit, Warning Horn, Circuit Breaker, and the necessary Wiring and Connectors. (1) Pilot Interface Panel The Pilot Interface Panel, located at the bottom of the center console opposite to the Flap Control Switch, provides the pilot with the ability to simulate operation of a retractable landing gear system. The panel is backlit for night operations and contains a GEAR UP/DOWN Locking Toggle Switch, three dimmable Light Emitting Diodes (LED), an Emergency Extension push-button and a Lamp Test push-button. To simulate prevention of accidental gear retraction, the GEAR UP/DOWN Toggle Switch must be slightly pulled to release a lock prior to pivoting the lever up or down to simulate gear operation. To facilitate system identification the Toggle Switch knob is in the shape of a wheel. Three LEDs, labeled NOSE, LH, and RH, indicate gear position and security. Red indicates gear is in-transit. Green indicates gear is down and locked. No lights indicate gear is up and locked. The Emergency Extension push-button simulates a secondary method of extending the landing gear. Pressing and holding the EMER EXT push-button will turn all of the LED's Red until the EMER EXT push-button has been held for a cumulative total of 5 seconds, at which time the LED's illuminate Green. The Lamp Test push-button provides for LED continuity testing. When the LAMP TEST pushbutton is pressed and held, the LED's will illuminate Red for 2±1 seconds and then illuminate Green until the push-button is released. (2) Instructor Fault Selection Panel The Instructor Fault Selection Panel, located out of the pilot s view on the RH mid-console trim panel, provides the instructor with the ability to change CLGS system behavior via a rotary switch to simulate a variety of landing gear malfunctions. (3) Warning Horn Push Button The Warning Horn Push Button, labeled LDG GR SIM ALERT, is located aft of power lever and provides instructor the ability to simulate warning horn when landing gear is not extended and: power lever is reduced below threshold position, i.e. simulation of power-to-idle gear warning, or flaps are extended to landing position, i.e. simulation of landing configuration gear warning. (4) Warning Horn The Warning Horn, located on the LH kick plate above the pilot s feet, is a piezo-ceramic audio indicator which, when activated, supplies a 110 db pulsed warning tone. Page 1
(5) Logic Control Unit The Logic Control Unit, located in the center console adjacent to the fuel gage, provides the logic and timing functions for the Pilot Interface Panel and Instructor Fault Select Panel to create the behavior of the CLGS system. 28 VDC for CLGS System operation is supplied through 2-amp circuit breaker on MAIN BUS 3. Page 2
3. MAINTENANCE PRACTICES A. Pilot Interface Panel (See Figure 1) (1) Removal - Pilot Interface Panel (a) Pull FLAPS circuit breaker. (b) Remove screws securing pilot interface panel to engine control panel. (c) Disconnect wire harnesses. (d) Remove pilot interface panel from airplane. (2) Installation - Pilot Interface Panel (a) Connect wire harnesses to pilot interface panel. (b) Position pilot interface panel to engine control panel and secure with screws. (c) Reset FLAPS circuit breaker. (d) Perform Operational Test - Flap Switch Panel. (Refer to 2-50) (e) Perform Operational Test - CLGS System. (Refer to ) (3) Operational Test - CLGS System (a) Set BAT 1 switch to ON position. (b) Pull MFD #1, MFD #2, COM 2, and GPS NAV GIA 2 circuit breakers. (c) Test no failure for all gear. 1 On instructor fault selection panel, set fault selection knob to NO FAIL. 2 On pilot interface panel, set gear position toggle switch to UP. 3 Verify LH, RH, and NOSE LEDs illuminate red for approximately 5 seconds, then turn off. 5 Verify LH, RH, and NOSE LEDs illuminate red for approximately 5 seconds, then illuminate green. (d) Test LH gear failure in up position. 1 On instructor fault selection panel, set fault selection knob to L in UP band. 2 On pilot interface panel, set gear position toggle switch to UP. 3 Verify RH and NOSE LEDs illuminate red for approximately 5 seconds, then RH and NOSE LEDs turn off. LH LED will illuminate green throughout sequence. 5 Verify RH and NOSE LEDs illuminate red for approximately 5 seconds, then illuminate green. LH LED will illuminate green throughout sequence. (e) Test nose gear failure in up position. 1 On instructor fault selection panel, set fault selection knob to N in UP band. 2 On pilot interface panel, set gear position toggle switch to UP. 3 Verify LH and RH LEDs illuminate red for approximately 5 seconds, then turn off. NOSE LED will illuminate green throughout sequence. 5 Verify LH and RH LEDs illuminate red for approximately 5 seconds, then illuminate green. NOSE LED will illuminate green throughout sequence. (f) Test RH gear failure in up position. 1 On instructor fault selection panel, set fault selection knob to R in UP band. 2 On pilot interface panel, set gear position toggle switch to UP. 3 Verify LH, RH, and NOSE LEDs illuminate red for approximately 5 seconds, then LH and NOSE LEDs turn off. RH LED will illuminate red throughout sequence. 5 Verify LH, RH, and NOSE LEDs illuminate red for approximately 5 seconds, then illuminate green. Page 3
(g) (h) (i) (j) (k) (l) (m) Test failure for all gear. 1 On instructor fault selection panel, set fault selection knob to ALL FAIL. 2 On pilot interface panel, set gear position toggle switch to UP for minimum of seconds. 3 Verify LH, RH, and NOSE LEDs remain unchanged throughout sequence. 4 Set gear position toggle switch to DOWN for minimum of seconds. 5 Verify LH, RH, and NOSE LEDs remain unchanged throughout sequence. Test RH gear failure in down position. 1 On pilot interface panel, set gear position toggle switch to UP. 2 On instructor fault selection panel, set fault selection knob to R in DOWN band. 3 Verify LH, RH, and NOSE LEDs illuminate red for approximately 5 seconds, then turn off. 5 Verify LH, RH, and NOSE LEDs illuminate red for approximately 5 seconds, then LH and NOSE LEDs turn green. RH LED will illuminate red throughout sequence. Test nose gear failure in down position. 1 On pilot interface panel, set gear position toggle switch to UP. 2 On instructor fault selection panel, set fault selection knob to N in DOWN band. 3 Verify LH and RH LEDs illuminate red for approximately 5 seconds, then turn off. NOSE LED will remain off throughout sequence. 5 Verify LH and RH LEDs illuminate red for approximately 5 seconds, then illuminate green. NOSE LED will remain off throughout sequence. Test LH gear failure in down position. 1 On pilot interface panel, set gear position toggle switch to UP. 2 On instructor fault selection panel, set fault selection knob to L in DOWN band. 3 Verify RH and NOSE LEDs illuminate red for approximately 5 seconds, then turn off. LH LED will remain off throughout sequence. 5 Verify RH and NOSE LEDs illuminate red for approximately 5 seconds, then illuminate green. LH LED will remain off throughout sequence. Test emergency extension push button. 1 On pilot interface panel, set gear position toggle switch to DOWN. 2 Press and hold emergency extension push button. 3 Verify LH, RH, and NOSE LED's illuminate red. 4 After continuing to hold emergency extension push button for approximately 5 seconds, verify LH, RH, and NOSE LED's illuminate and remain green. 5 Release the emergency extension push button. Test lamp test push button. 1 Press and hold lamp test push button. 2 Verify LH, RH, and NOSE LED's illuminate red for approximately 3 seconds, then turn green regardless of gear switch position. 3 Release lamp test push button. Test warning horn. 1 Press warning horn selection push button. 2 Verify warning horn is audible. 3 Set BAT 1 switch to OFF position. Page 4
B. Instructor Fault Selection Panel (1) Removal - Instructor Fault Selection Panel (a) Loosen set screws securing knob to switch shaft. Remove knob. (b) Remove RH crew seat. (Refer to 25-10) (c) Remove RH mid-console trim panel. (Refer to 25-10) (d) Remove screws, washers, and nuts securing instructor fault selection panel to center console. (e) Remove nut and washer securing switch to instructor fault selection panel plate. (f) Remove instructor fault selection panel plate from switch. (2) Installation - Instructor Fault Selection Panel (a) If installing new instructor fault selection plate: 1 Acquire necessary tools, equipment, and supplies. Description P/N or Spec. Supplier Purpose Instructor Fault Selection Panel Graphic Overlay Refer to IPC Refer to IPC Install overlay. Isopropyl Alcohol 99% or higher purity Any Source Clean. Cotton Cloth (clean and lint free) - Any Source Clean. Epoxy Adhesive (Refer to 51-30) (Refer to 51-30) Secure anchor. (b) (c) (d) (e) (f) 2 Clean surfaces of instructor fault selection panel plate with isopropyl alcohol. (Refer to 20-30) 3 At inboard instructor fault selection panel plate, use epoxy to bond anchor 0.25 inch (0.4 cm) from forward edge and 1. inches (4.24 cm) from upper edge. 4 Install instructor fault selection panel graphic overlay to outboard surface of instructor fault selection panel plate. Install lock washer (included with switch) onto switch. Position switch through keyed mounting hole on instructor fault selection panel plate. Install washer and nut (both included with switch) securing switch to instructor fault selection panel plate. Torque to 12-15 in-lb (1.35-1.9 Nm). At RH center console, position instructor fault selection panel to installation area. Install screws, washers, and nuts securing instructor fault selection panel to center console. CAUTION: To prevent chafing damage to knob during crew seat installation, do not install knob at this time. (g) Install RH mid-console trim panel. (Refer to 25-10) (h) Install RH crew seat. (Refer to 25-10) (i) Position knob (included with switch) so that indicator line on knob is opposite from flat side of switch shaft. (j) Verify knob set screw opposite of knob indicator line is positioned over flat side of switch shaft, and tighten. (k) Locate second knob set screw on side of knob, and tighten. (l) Perform Operational Test - CLGS System. (Refer to ) Page 5 15 Dec 2014
C. Warning Horn Push Button (1) Removal - Warning Horn Push Button (a) Remove RH aft console lower panel trim. (Refer to 25-10) (b) Remove nut, washer, and shim securing warning horn push button to center console. (c) Disconnect wire harness and remove warning horn push button from airplane. (2) Installation - Warning Horn Push Button (a) Position shim below installation hole on center console to adjust level difference. (b) Route push button wire harness through center console, shim, lock washer (included with push button), and nut (included with push button). (c) Install nut securing push button, shim, and washer to center console. Torque to 10-12 inlb (1.13-1.35 Nm). (d) Connect warning horn push button wire harness. (e) Perform Operational Test - CLGS System. (Refer to ) (f) Install RH aft console lower panel trim. (Refer to 25-10) Page
D. Warning Horn (1) Removal - Warning Horn (a) Remove LH kick plate. (Refer to 25-10) (b) Disconnect wire harness from warning horn. (c) Remove screws, washers, and nuts securing warning horn to LH kick plate. (d) Remove cable tie securing warning horn wire harness to nylon clamp. (e) Remove warning horn from airplane. (2) Installation - Warning Horn (a) Acquire necessary tools, equipment, and supplies. (b) (c) (d) (e) (f) (g) (h) (i) (j) Description P/N or Spec. Supplier Purpose Cloth Tape - Any Source Secure wire harness. Rotate shutter on warning horn so that sound holes are fully open. Position warning horn to LH kick plate with attached wire harness positioned to the aft left side of LH kick plate. Install screws, washers, and nuts securing warning horn to LH kick plate. At nylon clamp, wrap wires in cloth tape to provide secure fit in nylon clamp. Position wire harness to nylon clamp. Secure nylon clamp closed with cable tie. Position body of wire diode at center of aluminum clamp. Route other wire outside of clamp. Install screw, washers, and nut securing aluminum clamp to LH kick plate. Connect wire harness to warning horn. (k) Perform Operational Test - CLGS System. (Refer to ) (l) Install LH kick plate. (Refer to 25-10) Page
E. Logic Control Unit (1) Removal - Logic Control Unit (a) Remove LH aft console lower panel trim. (Refer to 25-10) (b) Disconnect wire harness from logic control unit. (c) Remove screws securing logic control unit to center console. (d) Remove logic control unit from airplane. (2) Installation - Logic Control Unit (a) At LH center console, position logic control unit to installation area. (b) Install screws securing logic control unit to center console. (c) Connect wire harness to logic control unit. (d) Perform Operational Test - CLGS System. (Refer to ) (e) Install LH aft console lower panel trim. (Refer to 25-10) Page 8
0.25 inch (0.4 cm) 1. inches (4.24 cm) 10 11 3 GEAR UP EMERG EXTEND NOSE DOWN LFT RGT LND GEAR SIM LGS WIRE HARNESS 1 LAMP TEST 8 4 5 8 LDG GR SIM ALERT SWITCH WIRE HARNESS FLAP SWITCH WIRE HARNESS NO FAIL L LANDING GEAR SIMULATOR FAULT SELECT L DOWN R N 3 UP N R ALL FAIL 8 9 NOTE WARNING HORN SWITCH WIRE HARNESS At inboard instructor fault selection panel plate, use epoxy to bond anchor 0.25 inch (0.4 cm) from forward edge and 1. inches (4.24 cm) from upper edge. Position knob so that indicator line on knob is opposite from flat side of switch shaft. Verify set screw is positioned over flat side of switch shaft. Position shim below installation hole on center console to adjust level difference. LEGEND 1. Pilot Interface Panel 2. Logic Control Unit 3. Instructor Fault Selection Panel 4. Warning Horn Switch 5. Shim. Screw. Washer 8. Nut 9. Knob 10. Cable Tie Anchor 11. Cable Tie SR22_MM115_3321 Figure 1 Cirrus Landing Gear Simulator (CLGS) Installation (Sheet 1 of 2) Page 9
LDG GR SIM ALERT WIRE HARNESS P1192 15 11 8 12 8 LH KICK PLATE 1 14 8 13 WARNING HORN WIRE HARNESS NOTE Rotate shutter on warning horn so that sound holes are fully open. At nylon clamp, wrap wires in cloth tape to provide secure fit in nylon clamp. Secure nylon clamp closed with cable tie. Position body of wire diode at center of aluminum clamp. Route other wire outside of clamp. LEGEND. Screw. Washer 8. Nut 11. Cable Tie 12. Aluminum Clamp 13. Nylon Clamp 14. Cloth Tape 15. Logic Control Unit 1. Warning Horn SR22_MM115_3323 Page 10 Figure 1 Cirrus Landing Gear Simulator (CLGS) Installation (Sheet 2 of 2)