# JASC 7897: Engine Exhaust System Wiring

- Type: JASC system/component code (FAA)
- ATA chapter: 78 Engine Exhaust
- Title in the code table: ENGINE EXHAUST SYSTEM WIRING
- Service difficulty reports: 94
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=68
- Page: https://openairdocs.org/jasc/7897

## What it covers

For reports indicating a problem with wiring specific to the Engine Exhaust System

## Service difficulty reports (94, newest 50)

- [SDR F3LA2024080500113](https://openairdocs.org/sdr/F3LA2024080500113), Aug 2, 2024: Airbus A321211. WIRE HARNESS. FAILED. LP304677 ITEM 1- ENG 2 EGT OVER LIMIT. THE AIRCRAFT WAS GROUNDED AS A RESULT. LP304677 ITEM1 - FOLLOW TSM 77-70-00-810-8 (N718FR)
- [SDR DALA2024080107658](https://openairdocs.org/sdr/DALA2024080107658), Jul 31, 2024: Airbus A320212. WIRE. CHAFED. SHIP 3265 - ATO - AT 40KTS DUE TO A #1 ENGINE THRUST REVERSER FAULT MESSAGE WITH REVERSER ALREADY ON MEL. CORRECTIVE ACT (N365NW)
- [SDR FDEA202407120987](https://openairdocs.org/sdr/FDEA202407120987), Jul 12, 2024: Boeing 7572B7. CONNECTOR. DIRTY. NOTICED RIGHT ENGINE AMBER REV MESSAGE IN FLIGHT. COMPLIED WITH QRH REVERSER UNLOCKED CHECKLIST. REVERSERS OPERATED NORM (N903FD)
- [SDR 9JLA2021072929980](https://openairdocs.org/sdr/9JLA2021072929980), Jul 19, 2021: Amd FALCON2000. WIRE HARNESS. DEFECTIVE. THE FLIGHT CREW REPORTED THRUST REVERSER CLASS II AND CLASS I MESSAGES. OPERATIONS WERE CONTINUED MEL. THE MAINTENANCE T (N307MD)
- [SDR 9JLA2021072829979](https://openairdocs.org/sdr/9JLA2021072829979), Jul 8, 2021: Amd FALCON2000. WIRE HARNESS. DAMAGED. THE FLIGHT CREW REPORTED FAULTS WITH THE THRUST REVERSER SYSTEM. THE SYSTEM FAULT WAS DEFERRED ON MEL AND OPERATIONS WER (N922LR)
- [SDR FDEA2020073011395](https://openairdocs.org/sdr/FDEA2020073011395), Jul 1, 2020: Airbus A300F4605R. WIRE HARNESS. DAMAGED. NR 2 ENGINE REVERSER PRESSURIZED. REMOVED AND INSTALLED A NEW DPV IAW AMM 78-31-06-2 UP TO PART F (1) SUB. C. R & R THE  (N650FE)
- [SDR HNAA2020020700047](https://openairdocs.org/sdr/HNAA2020020700047), Feb 5, 2020: Emb EMB145LR. CONNECTOR. DIRTY. E1 T/R DISAGREE MESS DISPLAYED DURING T/O(ABORTED T/O)....FIX:MELD ENG1(2) REV DISAGREE MESS FOLLOW UP, PHL, 06FEB20, CL (N626AE)
- [SDR VNAA2019092181101](https://openairdocs.org/sdr/VNAA2019092181101), Sep 18, 2019: Cndair CL6002B19. WIRE HARNESS. DAMAGED. AFTER TAKEOFF AT 1000 FT, CREW RECEIVED A REVERSER UNLOCK MESSAGE. CREW LEVELED OFF AT 3000, RAN QRH, AND SHUT THE RH EN (N229PS)
- [SDR ASAA2019091530692](https://openairdocs.org/sdr/ASAA2019091530692), Sep 15, 2019: Airbus A321253N. CONNECTOR. DIRTY. ENGINE 1 REV MINOR FAULT AFTER LANDING. GROUNDED - YES. CLEANED TR TERTIARY LOCK SENSOR CONNECTORS REF TSM 78-30-00-810- (N928VA)
- [SDR DALA2019121187236](https://openairdocs.org/sdr/DALA2019121187236), Aug 12, 2019: Boeing 777232. WIRE HARNESS. NOT REPORTED. (AIRCRAFT 7001, L/P 1218713) REFERENCE LOG 1218709 WIRE BUNDLE W0800 REQUIRES REPLACEMENT AT NSV. CORRECTIVE ACTION: DEF (N860DA)
- [SDR FDEA2018091852547](https://openairdocs.org/sdr/FDEA2018091852547), Sep 15, 2018: Airbus A300F4605R. WIRE HARNESS. FAILED. ON DEPARTURE, PASSING ABOUT 1000' ECAM WARNING NR 1 ENG REVERSER PRESSURIZED. FOLLOWED ECAM/QRH, DECLARED EMERGENCY AND  (N670FE)
- [SDR SWIA201844177](https://openairdocs.org/sdr/SWIA201844177), Jan 22, 2018: Cndair CL6002B19. WIRE HARNESS. DAMAGED. RIGHT THRUST REVERSER UNLOCK MESSAGE. EMERGENCY DECLARED. REMOVED AND REPLACED THE RT THRUST REVERSER WIRING HARNESS IAW (N912SW)
- [SDR O2GA2018020851501](https://openairdocs.org/sdr/O2GA2018020851501), Jan 6, 2018: Cessna 560XL. CONNECTOR. DIRTY. LEFT THRUST REVERSER UNLOCK LIGHT ILLUMINATED IN FLIGHT ON DESCENT COMING THROUGH 18,300 FT. MAINTENANCE COMPLIED WITH R (N514UP)
- [SDR ABXA20170513063](https://openairdocs.org/sdr/ABXA20170513063), May 13, 2017: Boeing 767281. WIRE. SHORTED. DURING TAXI, EICAS MESSAGE FOR THE LT REVERSER ISOLATION VALVE DISPLAYED AND THE THRUST REVERSER INDICATION CIRCUIT BREA (N794AX)
- [SDR HALA2017030700053](https://openairdocs.org/sdr/HALA2017030700053), Mar 7, 2017: Airbus A330243. CONNECTOR. DIRTY. ETOPS, ENG 2 REV UNLOCKED. FOUND LOWER OUTBOARD THRUST REVERSER HAD GAP. T/S PER TSM78-30. REMOVE AND REINSTALLED, CLEAN (N381HA)
- [SDR J7SA20160923001](https://openairdocs.org/sdr/J7SA20160923001), Sep 23, 2016: Cndair CL6002B16. CONNECTOR. DIRTY. DIVERTED DUE TO LT THRUST REVERSER UNLOCK INDICATION LIGHT COMING ON DURING CRUISE. CREW DECLARED AN EMERGENCY. LANDED W (N339FX)
- [SDR AALA201703299017](https://openairdocs.org/sdr/AALA201703299017), Sep 16, 2016: Boeing 737823. WIRE HARNESS. FAULTY. AIRCRAFT WAS NOT GROUNDED. LEFT ENGINE THRUST REVERSER LIGHT ILLUMINATED DURING TAKEOFF ROLL. TAKE OFF ABORTED, ABORT SP (N827NN)
- [SDR ASAA2016090617978](https://openairdocs.org/sdr/ASAA2016090617978), Sep 6, 2016: Boeing 737890. WIRE HARNESS. FAILED. WHEN ACCOMPLISHING T/C 78273000, FOUND FAULT CODE NR 78-11541 ON THE NR 1 ENGINE, EACH REVERSER SLEEVE HAS ONE POSITION  (N577AS)
- [SDR VQIA201607290025](https://openairdocs.org/sdr/VQIA201607290025), Jun 3, 2016: Airbus A320214. WIRE. DAMAGED. EXPERIENCED AN ENGINE 1 REVERSE UNLOCKED ECAM MESSAGE ON LANDING ROLL-OUT AFTER THRUST REVERSER STOWED. TECHS APPLIED ME (N638VA)
- [SDR ASAA2016031015876](https://openairdocs.org/sdr/ASAA2016031015876), Mar 10, 2016: Boeing 737890. WIRE HARNESS. FAILED. WHILE ACCOMPLISHING T/C 78273000, FOUND NR 1 ENGINE WITH SHORT TIME FAULT 78-11541, EACH REVERSER SLEEVE HAS ONE POSITIO (N577AS)
- [SDR CA151013013](https://openairdocs.org/sdr/CA151013013), Oct 11, 2015: Airbus A320211. CONNECTOR. CONTAMINATED. (CAN) REJECTED TAKEOFF AT 70KTS DUE TO ECAM ENGINE 1 REVERSER UNLOCKED DURING TAKEOFF ROLL. MAX BRAKE TEMP AFTER STOP WA
- [SDR CALA2014122392859](https://openairdocs.org/sdr/CALA2014122392859), Dec 18, 2014: Boeing 757222. CONNECTOR. DEFECTIVE. LEFT REVERSER INOPERATIVE ON LANDING. REPAIRED BAD GND ON CONNECTOR D5020. OPERATIONS CHECKED GOOD. (N544UA)
- [SDR VNAA2014082300017](https://openairdocs.org/sdr/VNAA2014082300017), Aug 23, 2014: Cndair CL6002B19. WIRE HARNESS. FAILED. CREW REPORTED LT THRUST REVERSER UNLOCK AMBER MESSAGE DURING FLIGHT. DECLARED AN EMERGENCY AND SAFELY LANDED AT DESTINAT (N245PS)
- [SDR AALA20140818004](https://openairdocs.org/sdr/AALA20140818004), Aug 18, 2014: Boeing 737823. WIRE HARNESS. FAULTY. NUMBER 2 ENG REVERSER ANNUNCIATOR ILLUMINATED. EMER DECLARED FLIGHT RETURNED & LANDED WITHOUT INCIDENT. ACFT REMOVED FRO (N832NN)
- [SDR FDEA201408072105](https://openairdocs.org/sdr/FDEA201408072105), Aug 7, 2014: Airbus A300F4605R. CONNECTOR. UNKNOWN. ON TAKEOFF NR 2 THRUST REVERSER PRESSURIZED. FOUND LT DPV SOLENOID CONNECTOR NOT PROPERLY REMOVED IAW MEL 78-30-01-A. RE (N674FE)
- [SDR FDEA201407241951](https://openairdocs.org/sdr/FDEA201407241951), Jul 24, 2014: Airbus A300F4605R. WIRE HARNESS. FAILED. PASSING 1000 FT AFTER TAKEOFF, RECEIVED A NR 2 ENGINE THRUST REVERSER PRESSURIZED. REPLACED ECS CONTROL WIRE HARNESS AND (N658FE)
- [SDR VNAA2014021100003](https://openairdocs.org/sdr/VNAA2014021100003), Feb 5, 2014: Cndair CL6002B19. TERMINAL BLOCK. FAILED. CREW REPORTED LT THRUST REVERSER UNLOCKED MESSAGE IN FLIGHT. CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTEN (N228PS)
- [SDR USAA2014010800001](https://openairdocs.org/sdr/USAA2014010800001), Jan 7, 2014: Airbus A319132. CONNECTOR. UNSECURE. AFTER TAKEOFF CREW REPORTED REVERSER NR 2 & ENG NR 2 THR INOPERATIVE ON SYS STATUS PAGE. FLIGHT RETURNED TO FIELD AT PHX (N826AW)
- [SDR CALA2013122793965](https://openairdocs.org/sdr/CALA2013122793965), Dec 23, 2013: Airbus A320232. WIRE. BROKEN. NR 2 ENG REV FAULT AFTER STOWING REV AFTER LANDING. FOUND BROKEN WIRE, SEE PTT 302015, 1302016 & 1302017. (N444UA)
- [SDR CALA2013122693923](https://openairdocs.org/sdr/CALA2013122693923), Dec 23, 2013: Boeing 767322. WIRE. DAMAGED. IAW SMC014. WIRE W356-150-20 NEEDS SHIELD GND REPAIRED AT CONNECTOR D4192J, IAW WDM 78-36-11. REPAIRED SHIELD GND FOR WI (N663UA)
- [SDR CALA2013122693922](https://openairdocs.org/sdr/CALA2013122693922), Dec 23, 2013: Boeing 767322. WIRE. DAMAGED. IAW SMC014 WIRE W356-149-20 SHIELD GND NEEDS REPAIR AT CONNECTOR D4192J. IAW WDM 78-36-11 REPAIRED SHIELD GND FOR WIRE W (N663UA)
- [SDR UALA2013071004804](https://openairdocs.org/sdr/UALA2013071004804), Jul 9, 2013: Boeing 777222. STUD. BROKEN. FOUND BOLT RETAINER MOUNTS FOR FIRE SEAL ON NR 1 ENGINE INBD THRUST REVERSER SLEEVE WITH BROKEN STUD. REPAIRED IAW REF E (N792UA)
- [SDR UALA2013070204614](https://openairdocs.org/sdr/UALA2013070204614), Jun 30, 2013: Boeing 767322. CONNECTOR. UNSECURE. AFTER NR 2 ENGINE THRUST REVERSER REACTIVATION, HAVE RT ENG ISOLATION VALVE MESSAGE AND FAULT ON CTR PEDESTAL. THRUST RE (N646UA)
- [SDR FDEA201305070933](https://openairdocs.org/sdr/FDEA201305070933), May 7, 2013: Airbus A310324. WIRE. DAMAGED. WHEN SETTING TAKEOFF POWER, NR 1 ENGINE REVERSE UNLOCK LIGHT ILLUMINATED. DURING REACTIVATION OF NR 1 THRUST REVERSER, F (N811FD)
- [SDR UG8A2013031901](https://openairdocs.org/sdr/UG8A2013031901), Mar 19, 2013: Cessna 560CESSNA. WIRE HARNESS. OPEN. DESCENDING, THE LT THRUST REVERSER UNLOCK LIGHT ILLUMINATED. REMOVED LT THRUST REVERSER AND INSTALLED NEW DEPLOY/ STOW W (N911UM)
- [SDR UALA2012101905992](https://openairdocs.org/sdr/UALA2012101905992), Oct 18, 2012: Boeing 777222. CONNECTOR. DIRTY. ENGINE REVERSER L LEFT ENGINE THRUST REVERSER CONTROL SYSTEM FAULT AND AIRPLANE ON GROUND. REVERSER IS INOP IN FWD THRUS (N768UA)
- [SDR UALA2012101805952](https://openairdocs.org/sdr/UALA2012101805952), Oct 18, 2012: Airbus A319131. WIRE. SHORTED. REV FAULT LEFT ENGINE. PARTIALLY COMPLETED FOUND SHORT FROM 4004VC PIN 6 TO 4000VC PIN 9, CAN ONLY SEE SHORT TO GROUND W (N804UA)
- [SDR REXA2012081101253](https://openairdocs.org/sdr/REXA2012081101253), Aug 11, 2012: Cndair CL6002B19. CONNECTOR. DAMAGED. RIGHT THRUST REVERSER DID NOT DEPLOY. CHECKED RIGHT THRUST REVERSER. STOW, DEPLOY AND THROTTLE LOCKOUT SWITCHES FOUND TO (N839AY)
- [SDR UALA2012081004355](https://openairdocs.org/sdr/UALA2012081004355), Aug 10, 2012: Boeing 757222. WIRE. BROKEN. RT ENGINE THRUST REVERSER CONT STATUS MESSAGE ON TAXI OUT. UNABLE TO CLEAR MESSAGE PER FIM 71-EPCS. FAULTS SHOWED PTLIR  (N549UA)
- [SDR REXA2012042700584](https://openairdocs.org/sdr/REXA2012042700584), Apr 27, 2012: Cndair CL6002B19. CONNECTOR. DAMAGED. LEFT THRUST REVERSER WILL NOT STOW. FOUND PIN DAMAGED IN CONNECTOR, REPAIRED IAW 20-00-00. NO DEFECTS NOTED. OPS CHECKED (N8790A)
- [SDR A6WA201240494](https://openairdocs.org/sdr/A6WA201240494), Apr 22, 2012: Cndair CL6002B19. CONNECTOR. BROKEN. RT ENGINE INBD SWITCH CONNECTOR PLUG BRACKET IS BROKEN. REMOVED BROKEN BRACKET AND REPLACED WITH NEW SERVICEABLE BRACKET (N446AW)
- [SDR FDEA201203070808](https://openairdocs.org/sdr/FDEA201203070808), Mar 7, 2012: Airbus A300B4622R. CONNECTOR. SHORTED. ABNORMAL NR 1 THRUST REVERSER UNLOCK ON ECAM. DIVERTED IAW QRH. NO ADVERSE YAW OR ROLL ASSOCIATED WITH THRUST REVERSER U (N749FD)
- [SDR UALA2012020900777](https://openairdocs.org/sdr/UALA2012020900777), Feb 8, 2012: Boeing 767322. CONNECTOR. BURNED. NR 1 PYLON CONNECTOR TO MOTORIZED ISOLATION VALVE IS BURNED BETWEEN PINS. REMOVED & REPLACED CONNECTOR & BACKSHELL REF B (N641UA)
- [SDR VNAA2011123000017](https://openairdocs.org/sdr/VNAA2011123000017), Dec 27, 2011: Cndair CL6002B19. WIRE HARNESS. DEFECTIVE. CREW REPORTED RIGHT ENGINE REV UNLOCKED CAUTION MESSAGE DURING FLIGHT EN ROUTE FROM CLT TO DCA. CREW DIVERTED TO RIC AND (N241PS)
- [SDR FDEA201111194980](https://openairdocs.org/sdr/FDEA201111194980), Nov 19, 2011: Doug MD11F. WIRE HARNESS. DAMAGED. RECEIVED LEVEL 1 ALERT REV 3 PRESS FAULT PRIOR TO 80 KTS ON TAKEOFF ROLL. WIRE HARNESS FOUND DAMAGED AND REPLACED. (N615FE)
- [SDR UALA2011112106353](https://openairdocs.org/sdr/UALA2011112106353), Nov 19, 2011: Boeing 757222. WIRE. DISCONNECTED. L REV ISLN VAL' MESSAGE NOT DISPLAYED DURING NR 1 ENGINE AUTO RESTOW CHECK. REF A-CHECK JOB CARD 5-5501. FOUND WIRE W338 (N551UA)
- [SDR IPXA1569965](https://openairdocs.org/sdr/IPXA1569965), Oct 20, 2011: Boeing 75724APF. WIRE HARNESS. SHORTED. RT AMBER THRUST REVERSER LIGHT ILLUMINATED AFTER LEVELING OFF. RETURNED TO BDL AS PRECAUTIONARY. DEFERRED. ASSIGNED M464 (N439UP)
- [SDR 2011FA0000444](https://openairdocs.org/sdr/2011FA0000444), Jun 29, 2011: Gulstm GIVXG450. WIRE HARNESS. DEFECTIVE. DURING DESCENT, THE RED AND YELLOW WARNING MESSAGES DISPLAY: "L THRUST REVERSER DEPLOY" AND "LT THRUST REVERSER UNLOCK". (N77XM)
- [SDR UALA2011030401064](https://openairdocs.org/sdr/UALA2011030401064), Mar 3, 2011: Boeing 767322. CONNECTOR. SHORT. RIGHT REVERSER INTERLOCK STATUS MESSAGE INFLT. REPLACED INTERLOCK ACTUATOR PER MM, NO HELP. ACTUATOR ALWAYS POWERED TO E (N667UA)
- [SDR IPXA11164807](https://openairdocs.org/sdr/IPXA11164807), Feb 16, 2011: Airbus A300F4622R. GROUND WIRE. SHORTED. ATB - INTERMITTENT NR1 ENG T/R INDICATION. NO EMERGENCY DECLARED. DEFERRED NR 1 T/R IAW MEL M447243 ASSIGNED. REF WAN 17 (N156UP)

All 94: https://openairdocs.org/jasc/7897/reports.md

## Other codes in chapter 78

- [JASC 7800](https://openairdocs.org/jasc/7800): Engine Exhaust System (281 reports)
- [JASC 7810](https://openairdocs.org/jasc/7810): Engine Collector/Tailpipe/Nozzle (1,898 reports)
- [JASC 7820](https://openairdocs.org/jasc/7820): Engine Noise Suppressor (248 reports)
- [JASC 7830](https://openairdocs.org/jasc/7830): Engine Thrust Reverser (5,902 reports)

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