CIRRUS SR2X SB2X-95-24R2. Service Bulletin. Issued: Revised: 10 Oct Dec 2018

Transcription

1 CIRRUS SRX Service Bulletin Number: Issued: Revised: 0 Oct 07 SNS SUBJECT: SPECIL PURPOSE EQUIPMENT - CPS Rocket Shelf Ground Wire. COMPLINCE Mandatory: Cirrus ircraft considers this Service Bulletin to be MNDTORY. ccomplish this Service Bulletin at next annual inspection. Compliance time begins upon receipt of this Service Bulletin. This bulletin was revised to update Compliance. Operators who have successfully complied with the original release of this Service Bulletin, dated 0 Oct 07, must reference Revision of this Service Bulletin to confirm accomplishment instructions have been met and ground wire routing clarification has been reviewed (Refer to ccomplishment Instructions Step Q.(3) Warning and Figures 0, 0, and 04). Operators who have successfully complied with Revision of this Service Bulletin, dated 06 Nov 07, need take no further action.. EFFECTIVITY SR0 Serials thru 0-67 after SBX-95-0, 0-68 thru 0-4 after SBX-95-7, 0-43 & subs w/o Perspective after SBX-95-8, thru 0-7 w/ Perspective after SBX-95-9, 0-8 thru SR Serials -000 thru -080 after SBX-95-7, -08 & subs w/o Perspective after SBX-95-8, -487 thru -394 w/ Perspective after SBX-95-9, -395 thru SRT Serials T-000 thru T-044 after SBX-95-9, T-044 thru T PPROVL F approval has been obtained on all technical data in this Service Bulletin that affects type design. For aircraft not operating under F requirements and regulatory oversight, it is the operator's responsibility to ensure that installation of this Service Bulletin has been accepted by the local airworthiness authority. 4. PURPOSE It has been discovered that aircraft with the CPS electric ignition could possibly be vulnerable to inadvertent activation due to certain highly abnormal electrostatic surge effects. n incident recently occurred on an unoccupied customer aircraft parked on the ramp during a lightning storm where an electrostatic surge caused by a proximate lightning strike activated the CPS rocket and parachute deployment. Based on Cirrus' investigation of this incident, the probability of the exact electrostatic conditions for an aircraft on the ground to experience an uncommanded CPS deployment is extremely improbable. Nevertheless, it has been determined that the addition of the rocket shelf ground wire will further mitigate against the rare possibility of an uncommanded CPS deployment. The inspection determined that this is a ground-based remote possibility only and not an in-flight risk. 5. DESCRIPTION This Service Bulletin contains instructions to install the rocket shelf ground wire. Page

2 6. WRRNTY INFORMTION For aircraft under warranty at the issue date of this Service Bulletin, Cirrus will cover all parts and labor costs for this Service Bulletin if the work is accomplished within the Compliance time period and the work is performed at an authorized Cirrus Service Center. 7. MNPOWER REQUIREMENTS 3.5 man-hours 8. OTHER PUBLICTIONS FFECTED SR0 Wiring Manual (p/n 9-00, p/n 9-00) SR0 Component Maintenance Manual (p/n 8-00) SR / SRT Wiring Manual (p/n , p/n ) SR / SRT Component Maintenance Manual (p/n ) 9. WEIGHT ND BLNCE 0. MTERIL INFORMTION The following parts are required to comply with this Service Bulletin. Parts can be obtained from an uthorized Cirrus Service Center or Parts Distributor. Reference Kit or order the following parts.. CCOMPLISHMENT INSTRUCTIONS. cquire necessary tools, equipment, and supplies. Component Weight rm Electrical Wiring Modifications 0. lb 6.0 inches Item No. Description P/N or Spec. Supplier Quantity Ground Wire ssembly Cirrus Terminal Ring MS Cirrus 3 Tape, Sheet, Cirrus Description P/N or Spec. Supplier Purpose Static Ground Cable - ny Source Ground airplane. Drop Cloth - ny Source Protect empennage from debris. Vacuum - ny Source Remove debris. Fish Tape, Nylon - ny Source Route ground wire. Crimp Tool - ny Source Crimp terminal ring. Heat Gun - ny Source Heat shrink sleeve. Ohmmeter - ny Source Check continuity. Petroleum Jelly VV-P-36 ny Source Prevent battery terminal corrosion. Cable Ties MS ny Source Secure ground wire. Tape, -inch M Company Insulate CB7 access panel. Utility Knife - ny Source Cut tape. Page

3 CUTION: The airplane must be grounded to earth prior to performing any maintenance. Use personal ESD precautions including wrist or ankle grounding strap to aircraft. B. ttach static ground cable to engine tailpipe and suitable earth ground. C. Remove CPS handle access cover and install safety pin. D. Remove key from ignition. E. Set BT, BT, and VIONICS switches to OFF positions. F. Pull BT circuit breakers (CB880 and CB88). G. Near battery, disconnect battery connector (J/P69). H. Disconnect battery at both positive and negative terminals. WRNING: ll electrical circuits must be off, prior to disconnecting battery cables. lways remove the negative battery cable first, then the positive cable. Insulate cable ends and battery terminals to prevent accidental re-connection. Remove all jewelry before servicing the battery. Metal objects may fuse to electrical connections and cause severe burns. Wear face shield and protective clothing when servicing battery and/or handling electrolyte. Neutralize electrolyte spills with a solution of baking soda and water, then rinse with clean water. () Remove upper engine cowling. (Refer to MM 7-0) CUTION: fter battery disconnection, insulate cable ends and battery terminals to prevent accidental connection. () Remove negative battery cable from battery terminal. (3) Remove positive battery cable from battery terminal. (4) Insulate cable ends and battery terminals. I. SR0 Serials w/ CPS battery: Disconnect CPS battery at J/P70 connectors. J. Serials w/ Iridium Weather System: Remove Iridium GSR 56 mounting shelf. (Refer to MM 34-50) K. Remove crew and passenger seats. (Refer to MM 5-0) L. Remove RH mid console trim. (Refer to MM 5-0) M. Remove cabin floor covering. (Refer to MM 5-0) N. Remove BH trim panel. (Refer to MM 5-0) O. Remove access panels CFL, CFL, CF3L, CF4L, CF5, CB6, and CB7. (Refer to MM 06-00) P. To prevent debris and components from falling into bottom of empennage, place catch cloth below CPS compartment. Q. Install ground wire (item ) at rocket shelf. (See Figure 0) () t rocket shelf, remove and retain indicated screw and washer. Discard existing safety wire. () Secure ground wire TR7 to rocket shelf using existing washer and screw. Note: For accessibility and time-saving gains, it is permissible to use safety cable instead of safety wire. Page 3

4 (3) Install safety wire to screws securing shelf assembly to rocket motor. (Refer to MM 0-50) WRNING: To ensure ground wire does not contact the battery shelf, route ground wire as follows: Serials w/ factory installation: Route aft of CPS diagnostic wire harness upper length, downward along harness, and forward of lower harness bend. Use cable ties as required to maintain routing. (See Figure 0) Serials after SBX-95-7, SBX-95-8, SBX-95-9, or SBX-95-0: Route aft of and along CPS diagnostic wire harness. Use cable ties as required to maintain routing away from the battery shelf. (See Figure 0) (4) Route ground wire along with existing wiring exiting CPS compartment. R. Route ground wire (item ). (See Figure 0) () Route ground wire approximately as shown following the battery harness and the engine monitoring harness forward of the J/P847 connectors. (Refer to WM 0-0) () Secure ground wire to existing tie downs with cable ties. S. Install ground wire (item ) at RH mid console. (See Figure 03) () t ground wire, slide heat shrink sleeve onto end of ground wire and crimp terminal ring (item ) onto ground wire. (Refer to WM 0-0) () pply heat using a heat gun to heat shrink sleeve. (Refer to WM 0-0) (3) Label end of ground wire as TR73. (4) Serials w/o Perspective or Perspective+: Secure ground wire (item ). (a) cquire necessary tools, equipment, and supplies. Description P/N or Spec. Supplier Purpose Permanent Marker - ny Source Mark installation hole. Drill Bit, #7 0.0 inch ny Source Drill installation hole. Deburring Tool - ny Source Deburr installation hole. Cotton Cloth - ny Source Clean installation hole. (clean, white, lint free) Isopropyl lcohol TT-I-735 Grade or B ny Source Clean installation hole. Touch-N-Prep Pen lodine 3 Henkel Protect from corrosion. Bolt N3-3 ny Source Secure ground wire. Washer NS49D033J ny Source Secure ground wire. Nut MS044N3 ny Source Secure ground wire. (b) t RH mid console, measure.5 inches (6.4 cm) forward from forward edge of console panel opening, and mark. (c) Measure.8 inches (7. cm) down from upper edge of console panel and mark intersection with previous mark. Note: If measured location for intersection conflicts with an existing installation, contact Cirrus for disposition. (d) Using #7 drill bit, drill Ø 0.0±0.005 inch (5.05±0.7 mm) hole approximately at marked intersection. (e) Deburr and solvent clean installation hole. (Refer to MM 0-30) (f) pply lodine to installation hole. (g) Position and secure ground wire TR73 to ground at console with bolt, washer, and nut. Page 4

5 (5) Serials w/ Perspective or Perspective+: Secure ground wire (item ). (a) t RH mid console, remove nut, washer, and screw securing TR050 to ground at console. (b) Position and secure ground wire TR73 and TR050 to ground at console with screw, washer, and nut. T. Check continuity between rocket shelf and aircraft ground. () Position ohmmeter lead to rocket shelf and other lead to suitable aircraft ground (firewall or tailpipe). () If resistance from rocket shelf to aircraft ground is less than ohms, the rocket shelf is adequately grounded and no further steps are necessary. (3) If resistance from rocket shelf to aircraft ground is greater than ohms, contact Cirrus for disposition. U. Install tape onto access panel CB7. (See Figure 04) Note: Overlap tape seams 0.5 inch (.3 cm) minimum. Ensure -inch tape is centered onto upper edge of CB7 access panel prior to wrap-over. () Using -inch tape, center tape along entire upper edge of access panel CB7 so that tape ends extend inch (.54 cm) before and after edge. () Fold tape over edge and adhere to panel and itself at ends. (3) Serials thru 0-4, -000 thru -080: On aft side of access panel CB7, install tape sheet (item 3) over entire surface. (4) Serials 0-43 thru 0-368, -08 thru -453, T-000 thru T-596: On aft LH side of access panel CB7, install tape sheet (item 3) from upper to lower edge of panel, extending 9 inches (3 cm) minimum from LH edge. Note: Do not trim overlapped -inch tape ends installed at upper edge of access panel. (5) Use utility knife to trim any excess from lower portion of tape sheet (item 3). V. SR0 Serials w/ CPS battery: Perform Inspection/Check - Cirrus irplane Parachute System. (Refer to MM 95-00) Note: SR0 Serials w/ CPS battery: It is not necessary to perform Electric Ignition Checkout Procedure, as defined in MM W. Remove drop cloth from CPS compartment. X. Using vacuum cleaner, remove all debris from baggage floor, CPS compartment, and fuselage belly below the CPS compartment. Y. Visually inspect CPS compartment for security, leaks, loose or missing hardware, moisture, and general condition. Z. Install access panels CFL, CFL, CF3L, CF4L, CF5, CB6, and CB7. (Refer to MM 06-00). Install BH trim panel. (Refer to MM 5-0) B. Install cabin floor covering. (Refer to MM 5-0) C. Install RH mid console trim. (Refer to MM 5-0) D. Install crew and passenger seats. (Refer to MM 5-0) E. Serials w/ Iridium Weather System: Install Iridium GSR 56 mounting shelf. (Refer to MM 34-50) F. SR0 Serials w/ CPS battery: Connect CPS battery at J/P70 connectors. G.Connect battery at both positive and negative terminals. CUTION: Connecting cables in reverse (positive to negative and negative to positive) can cause serious damage to the electrical system. Connect the negative cable last. () Connect positive battery cable to positive terminal. () Connect negative battery cable to negative terminal. (3) To prevent corrosion, apply petroleum jelly to battery terminals. (4) Install upper engine cowling. (Refer to MM 7-0) Page 5

6 H. Near battery, connect battery connector (J/P69). I. Reset BT circuit breakers (CB880 and CB88). J. Remove ground from aircraft at engine tailpipe. K. Using recorded aircraft weight, calculate and record new weight and center of gravity values on the Weight & Balance Record of the POH. L. Complete airplane records by noting compliance with in ircraft Logbook. To submit a Technical Publication change request, visit: or contact us by at techpubs@cirrusaircraft.com. Page 6

7 CPS ROCKET SHELF 4 CPS IGNITION HRNESS SHIELD 3 SHIELD 3 CPS IGNITION HRNESS CPS COMPRTMENT CPS COMPRTMENT BULKHED Serials after SBX-95-7, SBX-95-8, SBX-95-9, or SBX DETIL NOTE Route ground wire along with existing wiring exiting CPS compartment. LEGEND. Screw. Washer 3. Braided Sleeving 4. TR7 SR_SB95_60 Figure 0 CPS Rocket Shelf Ground Wire Connection Page 7

8 B C B C CPS COMPRTMENT FT FLOOR B SPR TUNNEL B BTTERY BULKHED BTTERY HRNESS J/P847 CONNECTOR ENGINE MONITORING HRNESS TR73 BTTERY G BULKHED BTTERY HRNESS J/P847 CONNECTOR ENGINE MONITORING HRNESS TR73 NOTE Route ground wire approximately as shown following the battery harness and the engine monitoring harness forward of the J/P847 connectors. SPR TUNNEL LEGEND. Ground Wire SR_SB95_69B Figure 0 CPS Ground Wire Routing ( of 3) Page 8

9 NOTE Due to aircraft configurations, the battery shelf may vary from illustration. To ensure ground wire does not contact the battery shelf, route ground wire aft of CPS diagnostic wire harness upper length, downward along harness, and forward of lower harness bend. Use cable ties as required to maintain routing. NTENN IF INSTLLED CPS CTIVTION CBLE CPS DIGNOSTIC WIRE HRNESS FUSELGE BTTERY SHELF BULKHED BTTERY SHELF BULKHED SECTION VIEW Figure 0 CPS Ground Wire Routing ( of 3) SR_SB95_64 Page 9

10 NOTE Due to aircraft configurations, the battery shelf may vary from illustration. To ensure ground wire does not contact the battery shelf, route ground wire aft of and along CPS diagnostic wire harness. Use cable ties as required to maintain routing away from the battery shelf. CPS CTIVTION CBLE CPS DIGNOSTIC WIRE HRNESS B B FUSELGE BTTERY SHELF BULKHED BTTERY SHELF BULKHED Serials after SBX-95-7, SBX-95-8, SBX-95-9, or SBX SECTION B VIEW B Figure 0 CPS Ground Wire Routing (3 of 3) SR_SB95_66 Page 0

11 4 3 B TO CPS ROCKET SHELF SIDE PNEL RIGHT MID CONSOLE Serials w/o Perspective or Perspective+ vionics..5 inches (6.4 cm) SIDE PNEL RIGHT MID CONSOLE.8 inches (7. cm) LEGEND. Bolt. TR73 3. Washer 4. Nut Figure 03 RH Mid Console Ground Wire Connection - Serials w/o Perspective or Perspective+ ( of ) SR_SB95_63 Page

12 TR SIDE PNEL RIGHT MID CONSOLE TO CPS ROCKET SHELF TVS DETIL Serials w/ Perspective or Perspective+ vionics. B LEGEND. Screw. TR73 3. Washer 4. Nut Figure 03 RH Mid Console Ground Wire Connection - Serials w/ Perspective or Perspective+ ( of ) SR_SB95_6 Page

13 .0 inch (.5 cm).0 inch (.5 cm) ROCKET FCING SURFCE.0 inch (.5 cm) inches (3.0 cm) 5 TPE SHEET DETIL NOTE Ensure tape wraps over upper edge of CB7 access panel. Overlap tape seams 0.5 inch (.3 cm) minimum. LEGEND. ccess Panel CB7 3 4 Serials thru 0-4, -000 thru -080 (not shown): On aft side of access panel CB7, install sheet over entire surface. Serials 0-43 thru 0-368, -08 thru -453, T-000 thru -596 (as shown): On aft LH side of access panel CB7, install sheet from upper to lower edge of panel, extending 9.0 inches ( 3.0 cm) minimum from LH edge. 5 Use utility knife to trim any excess from lower portion of tape sheet. Do not trim overlapped -inch tape ends installed at upper edge of access panel. SR_SB95_6B Figure 04 Tape Installation on ccess Panel CB7 Page 3