# JASC 8000: Engine Starting System - Type: JASC system/component code (FAA) - ATA chapter: 80 Starting - Title in the code table: ENGINE STARTING SYSTEM - Service difficulty reports: 135 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=69 - Page: https://openairdocs.org/jasc/8000 ## What it covers The units, components and associated systems used for starting the engine. Includes electrical, inertia air or other starter systems. Does not include ignition systems which are covered in JASC Chapter 74, IGNITION. ## Service difficulty reports (135, newest 50) - [SDR QR9R2025091100002](https://openairdocs.org/sdr/QR9R2025091100002), Sep 11, 2025: Bolkms BK117C2. SWITCH. FAULTY. NO RISE IN N1 WHEN STARTER ENGAGED. ALSO UNABLE TO GET A RISE IN N1 WHEN ENGAGING #1 VENT SWITCH. REMOVED AND REPLACED # - [SDR GTIA2024112538552](https://openairdocs.org/sdr/GTIA2024112538552), Nov 22, 2024: Airbus A321231. ROD END. EXCESS PLAY. #1 ENG N1 VIB FLUCTUATING 3.8-9.9 FOR 3-4 MINS-FOUND MULTPLE LOCATIONS OF STARTER DUCT ROD ENDS WITH EXCESSIVE PLAY. R+R (N686NK) - [SDR ABXA20241018200](https://openairdocs.org/sdr/ABXA20241018200), Oct 18, 2024: Boeing 767306. CONTROLLER. FAULTED. DURING TAXI #2 ENG START SELECTOR, SELECTED TO " GROUND" "VALVE" LIGHT DID NOT APPEAR ON THE SINGLE + BOTH POSITION. AC (N1321A) - [SDR UIEA2024091100907](https://openairdocs.org/sdr/UIEA2024091100907), Sep 12, 2024: Boeing 74747UF. POWER SUPPLY. INOPERATIVE. DIVERTED, MULTIPLE FLIGHT CONTROL EICAS STATUS MESSAGES(

R/R FCE POWER SUPPLY 1R (M7360) IAW AMM 27-09-00 & AIPC 2 (N476MC) - [SDR ABXA2024040576](https://openairdocs.org/sdr/ABXA2024040576), Apr 5, 2024: Boeing 767338. CONTROL PANEL. FAULTY. RIGHT STARTER CUTOUT EICAS MESSAGE AND #2 ENG START VALVE LIGHT ILLUMINATED ON TAXI OUT. REMOVED AND REPLACED START CONT (N317CM) - [SDR ASAA2023103046084](https://openairdocs.org/sdr/ASAA2023103046084), Oct 30, 2023: Boeing 737990ER. KNOB. MALFUNCTIONED. FOLLOW UP TO #2 ENGINE START KNOB FALLING OFF CAUSING DELAYS. -----#PRI2-----. GROUNDED - YES. (RESOLVED ON W/O: 1975502 (N442AS) - [SDR ASAA2023101545611](https://openairdocs.org/sdr/ASAA2023101545611), Oct 15, 2023: Boeing 737890. UNKNOWN. UNKNOWN. ENGINE #1 START STALLED BRIEFLY @ 20% N2, THEN RECOVERED TO START NORMALLY. FA IN BACK HEARD 3 BANGS. GROUNDED - YES. PE (N562AS) - [SDR ASAA2023101145597](https://openairdocs.org/sdr/ASAA2023101145597), Oct 11, 2023: Boeing 737990ER. UNKNOWN. UNKNOWN. #2 IGN SWITCH IS LOOSE. GROUNDED - YES. TIGHTENED MOUNT SCREW AS REQ. REF 80-11-00. OPS NML. (N413AS) - [SDR ASAA2023100245430](https://openairdocs.org/sdr/ASAA2023100245430), Oct 2, 2023: Boeing 7379. UNKNOWN. UNKNOWN. ENG #1 SWITCH IS LOOSE. GROUNDED - YES. TIGHTENED MOUNT SCREWS AS REQ REF AMM 80-11-03. (N961AK) - [SDR ASAA2023092945365](https://openairdocs.org/sdr/ASAA2023092945365), Sep 29, 2023: Boeing 7379. UNKNOWN. UNKNOWN. #1 START SWITCH IS LOOSE. GROUNDED - YES. TIGHTNEDED #1 START SWITCH SET SCREW IN REFERENCE TO AMM 80-10-00-400-801-F00. (N958AK) - [SDR ASAA2023092545298](https://openairdocs.org/sdr/ASAA2023092545298), Sep 25, 2023: Boeing 7379. UNKNOWN. UNKNOWN. START SWITCH KNOBS LOOSE. GROUNDED - YES. RESECURED BOTH START SWITCHES AS REQUIRED. OK FOR SERVICE. (N961AK) - [SDR ASAA2023083144879](https://openairdocs.org/sdr/ASAA2023083144879), Aug 31, 2023: Boeing 737890. UNKNOWN. UNKNOWN. DURING DRY MOTOR RUN FOUND #2 ENGINE STARTER OIL LEAK AT STARTER CLAMP. GROUNDED - YES. INSPECTED QADTER CLAMPPER AMM 80 (N531AS) - [SDR ASAA2023082644796](https://openairdocs.org/sdr/ASAA2023082644796), Aug 26, 2023: Boeing 737890. UNKNOWN. UNKNOWN. ENG #2 FAULT CODE 73-30312. THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE. SHORT TIME FAULT. GROUNDED - YES. ACCOM (N593AS) - [SDR ASAA2023082544804](https://openairdocs.org/sdr/ASAA2023082544804), Aug 25, 2023: Boeing 737890. MAGNETIC PLUG. STUCK. DURING ACCOMPLISHMENT OF T/C N2480001 RIGHT STARTER MAGNETIC CHIP DETECTOR INSPECTION WAS UNABLE TO REMOVE MAGNETIC PLUG (N590AS) - [SDR ASAA2023081344597](https://openairdocs.org/sdr/ASAA2023081344597), Aug 13, 2023: Boeing 7379. UNKNOWN. UNKNOWN. START VALVE FAIL TO CUT-OUT. RAN CHECKLIST. START VALVE LIGHT WENT OUT. GROUNDED - YES. ON DEFERRAL. (N935AK) - [SDR ASAA2023081144544](https://openairdocs.org/sdr/ASAA2023081144544), Aug 11, 2023: Boeing 737890. SWITCH. FAULTED. #2 START SWITCH WON'T STAY IN GRD POSITION DURING START ATTEMPT. GROUNDED - YES. (RESOLVED ON W/O: 1961049 TASKCARD: N/R (N532AS) - [SDR ASAA2023080444423](https://openairdocs.org/sdr/ASAA2023080444423), Aug 4, 2023: Boeing 737990ER. UNKNOWN. UNKNOWN. #1 ENG FAULT CODE 73-30311, THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE, SHORT TIME FAULT. GROUNDED - YES. REF F (N495AS) - [SDR ASAA2023072544232](https://openairdocs.org/sdr/ASAA2023072544232), Jul 25, 2023: Boeing 737990ER. SWITCH. FAULTY. REF. T/C 78273000 #1 ENG. HAS FAULT MESSAGE 73-303111 " THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE" SHORT TIME (N434AS) - [SDR ASAA2023072244184](https://openairdocs.org/sdr/ASAA2023072244184), Jul 22, 2023: Boeing 737990ER. UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING T/C 78273000, FOUND ENG #1 SHORT TERM FAULT. CODE 73-30311. "THE START SWITCH SIGNAL AND ARINC BUS D (N459AS) - [SDR ASAA2023062643781](https://openairdocs.org/sdr/ASAA2023062643781), Jun 26, 2023: Boeing 737890. SWITCH. FAULTY. #2 ENG SHORT TIME FAULT MSG 73-30312 THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE. GROUNDED - YES. REMOVED AND RE (N564AS) - [SDR ASAA2023050843175](https://openairdocs.org/sdr/ASAA2023050843175), May 8, 2023: Boeing 737990ER. STARTER. UNKNOWN. DURING ASA TASK CARD 78472040 FOUND METALLIC PARTICLES CHECKED STARTER MAGNETIC PLUG AND FOUND METALLIC PARTICLES THE #1 (N459AS) - [SDR A6WA202304248583](https://openairdocs.org/sdr/A6WA202304248583), Apr 24, 2023: Cndair CL6002B19. UNKNOWN. UNKNOWN. IN CRUISE FLIGHT, R ENG START STATUS MESSAGE AND NO STRTR CUTOUT CAUTION MESSAGE APPEARED INTERMITTENTLY FOR DURATION OF (N440AW) - [SDR A6WA202304248580](https://openairdocs.org/sdr/A6WA202304248580), Apr 24, 2023: Cndair CL6002B19. UNKNOWN. UNKNOWN. IN CRUISE FLIGHT, R ENG START STATUS MESSAGE AND NO STRTR CUTOUT CAUTION MESSAGE APPEARED INTERMITTENTLY FOR DURATION OF (N440AW) - [SDR JGVR20230518001](https://openairdocs.org/sdr/JGVR20230518001), Apr 18, 2023: Lear 45LEAR. UNKNOWN. UNKNOWN. SWITCH GUARDS LOCATED ON THE CENTER PEDESTAL DO NOT FUNCTION WELL. A MAIN ENGINE START SWITCH GUARD WAS FOUND PUSHED TO (N340SR) - [SDR NACA2023040300002](https://openairdocs.org/sdr/NACA2023040300002), Apr 3, 2023: Boeing 767323. UNKNOWN. UNKNOWN. RIGHT START CONTROL CB POPPED OUT DURING START, RESET ONCE AND ATTEMPTED START, POPPED OUT AGAIN. ITEM DEFERRED IAW MEL (N379CX) - [SDR QR9R2023040300001](https://openairdocs.org/sdr/QR9R2023040300001), Apr 3, 2023: Bolkms BK117C2. STARTER GEN. FAILED. ABORTED TAKE-OFF DUE TO ENGINE STARTER WOULD NOT ENGAGE. REMOVED AND REPLACED STARTER GENERATOR IAW AMM 24-30-00, 4-2. C - [SDR NACA2023033100015](https://openairdocs.org/sdr/NACA2023033100015), Mar 31, 2023: Boeing 767323. UNKNOWN. UNKNOWN. #1 ENGINE STARTER OIL QTY FOUND BELOW 500 ML. CORRECTIVE ACTION PENDING PAPERWORK (N321CM) - [SDR 2022FA0000467](https://openairdocs.org/sdr/2022FA0000467), Aug 18, 2022: Raythn G36. NONE. NONE. FOR AIRCRAFT N745SL MODEL G36 SN: E-3804 HOBBS: 789.7 IN MARCH 2022 THE STARTER ADAPTER WAS SENT OUT FOR OVERHAUL TO AN (N745SL) - [SDR QR9R20220511003](https://openairdocs.org/sdr/QR9R20220511003), May 11, 2022: Bolkms BK117C2. GENERATOR. FLUCTUATES. #2 GENERATOR FLUCTUATED BETWEEN 0 AND 60 DURING FLIGHT. A TEST FLIGHT EVALUATION REVEALED #2 STARTER GENERATOR WOULD NOT - [SDR UIEA2022041000283](https://openairdocs.org/sdr/UIEA2022041000283), Apr 12, 2022: Boeing 767324. PLUG. DAMAGED. ENG #1 STARTER OVER FLOW PLUG WITH LANYARD DAMAGED(

REMOVED & REPLACED #1 ENG STARTER OVERFLOW PLUG PER  B767 (N645GT) - [SDR QR9R20220216002](https://openairdocs.org/sdr/QR9R20220216002), Feb 16, 2022: Bolkms BK117C2. STARTER GEN. WARNING MESSAGE. DURING START, ENGINE # 1 STARTER ENGAGED...STARTER ENGAGED MESSAGE APPEARED ON CAD. NO CHANGE TO N1, TOT OR TQ. AND BARE - [SDR QR9R20220215001](https://openairdocs.org/sdr/QR9R20220215001), Feb 15, 2022: Bolkms BK117C2. STARTER GEN. DISENGAGED. #2 STARTER WOULD NOT ENGAGE WITH VENT SWITCH OR START SWITCH IN THE ON POSITION. REPLACED STARTER GENERATOR IAW AMM 24-3 - [SDR QR9R20220214001](https://openairdocs.org/sdr/QR9R20220214001), Feb 14, 2022: Bolkms BK117C2. STARTER GEN. WARNING MESSAGE. GEN DISCON CAUTION ON #1 SIDE, ACCOMPANIED BY BATT DISCH CAUTION. GEN #1 INDICATING -10 AMPS ON VEMD LANE 2. REPLACED ST - [SDR QR9R20220211001](https://openairdocs.org/sdr/QR9R20220211001), Feb 11, 2022: Bolkms BK117C2. STARTER GEN. ERRATIC. GEN 2 ERRATIC READINGS IN FLIGHT FROM 0A -90A. REPLACED STARTER IAW AMM 24-30-00,4-2. TEST FLIGHT COMPLETED IAW EMM 71-0 - [SDR NACA2021121800001](https://openairdocs.org/sdr/NACA2021121800001), Dec 18, 2021: Boeing 767323. NONE. NONE. L ENG VALVE ILLUMINATING WHEN GND SELECTED FOR START FOR ABOUT 45 SECONDS. L ENGINE STARTED NORMALLY AFTER LIGHT WENT OU (N321CM) - [SDR ABXA20211117118](https://openairdocs.org/sdr/ABXA20211117118), Nov 17, 2021: Boeing 767383. NONE. NONE. LEFT ENGINE STARTER WOULD NOT ENGAGE. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. DURING TROUBLESHOOTING FOUND O (N226CY) - [SDR TAMF20211109016](https://openairdocs.org/sdr/TAMF20211109016), Nov 9, 2021: Airbus A330243F. STARTER. DISLODGED. DURING THE TOWING OF THE N335QT AIRCRAFT AND IN THE ENGINE 1 START PROCEDURE, IT WAS NOTED THAT THE ENGINE WAS NOT TURNI (N335QT) - [SDR ABXA20211012101](https://openairdocs.org/sdr/ABXA20211012101), Oct 12, 2021: Boeing 767231. NONE. NONE. RT. ENG. IGNITION START SELECTOR DOES NOT HOLD IN THE GND POSITION WHEN STARTING. NO VALVE LIGHT, NO N2 ROTATION. AIRCRA (N650GT) - [SDR ASAA2019102541105](https://openairdocs.org/sdr/ASAA2019102541105), Oct 24, 2019: Boeing 737890. LEVER. SLIPPED. #1 START LEVER SLIPS BELOW THE CUTOFF DETENT. GROUNDED - YES. #1 START LEVER OPERATES NORMAL AND NO DEFECTS NOTED PER B7 (N562AS) - [SDR P5CA2018121400384](https://openairdocs.org/sdr/P5CA2018121400384), Dec 13, 2018: Boeing 7673JHF. WARNING LIGHT. FALSE ACTIVATION. " R STARTER CUTOUT" EICAS MSG DISPLAYED NUMBER OF TIMES INFLIGHT. ENG START SUCCESSFUL I AUTO, VALVE LIGHT NEVER ILLUMIN (N643GT) - [SDR UIEA2018040400564](https://openairdocs.org/sdr/UIEA2018040400564), Mar 27, 2018: Boeing 767306. LINK. LOOSE. FOUND THE NR 1 START DUCT LINK LOOSE. TORQUED THE NR 1 ENGINE START DUCT LINK IAW AMM 70-50-00-912-001, REV 123. CHECKED (N1427A) - [SDR ASAA2018012223274](https://openairdocs.org/sdr/ASAA2018012223274), Jan 22, 2018: Boeing 737890. SWITCH. FAILED. THE NR 2 ENGINE DID NOT START WITH IGNITION LT. STARTED WITH IGN RT. ACFT GROUNDED. SWAPPED EXCITER LEADS FROM LEFT TO R (N557AS) - [SDR ASAA2017060320952](https://openairdocs.org/sdr/ASAA2017060320952), Jun 3, 2017: Boeing 737890. ROD END. WORN. NR 2 ENGINE LOWER STARTER DUCT FWD ROD END WORN. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE LOWER STARTER DUCT (N583AS) - [SDR ASAA2017031520186](https://openairdocs.org/sdr/ASAA2017031520186), Mar 15, 2017: Boeing 737890. FAULT CODE. UNKNOWN. FOUND NR 1 ENGINE WITH LONG-TIME FAULT 76-31361. THE START LEVER SIGNALS DISAGREE. ACFT GROUNDED. ACCOMPLISHED EEC TEST (N506AS) - [SDR ASAA2016041016696](https://openairdocs.org/sdr/ASAA2016041016696), Apr 10, 2016: Boeing 737890. RELAY. FAILED. NR 2 ENGINE SHOWS LONG TIME FAULT MESSAGE NR: 76-31362, THE START LEVER SIGNALS DISAGREE. ACFT GROUNDED. ACCOMPLISHED TR (N517AS) - [SDR ASAA2015121214222](https://openairdocs.org/sdr/ASAA2015121214222), Dec 12, 2015: Boeing 737890. MODULE. FAILED. WHILE C/W T/C 78273000 NR 1 ENGINE FAULT CODE 76-31361. THE START LEVER SIGNALS DISAGREE, LONG TERM FAULT. ACFT GROUNDED (N562AS) - [SDR HYIA20150729004](https://openairdocs.org/sdr/HYIA20150729004), Jul 27, 2015: Cessna 402C. RELAY. FAILED. PILOT REPORTED LEFT ENGINE STARTER LIGHT ILLUMINATED. THE FLIGHT DIVERTED FROM ITS ORIGINAL DESTINATION. INSPECTED & FOU (N810BW) - [SDR CALA2014011590151](https://openairdocs.org/sdr/CALA2014011590151), Jan 14, 2014: Airbus A319131. WARNING SYSTEM. FALSE ACTIVATION. ENG 2 EIU FAULT. PAGE WRITER FAULTING START SWITCH SELECTOR. CYCLED SWITCH MESSAGE CLEARED, STARTED ENG NO FAULTS NOTED. (N821UA) - [SDR CALA2014010390047](https://openairdocs.org/sdr/CALA2014010390047), Jan 2, 2014: Boeing 747422. UNKNOWN. MALFUNCTIONED. NR 4 ENG WILL NOT ROTATE WHEN START IS ATTEMPTED. CYCLED CB J18 & ATTEMPTED SECOND START, STILL NO ROTATION. AIRCRAFT RE (N178UA) - [SDR 2013FA0000435](https://openairdocs.org/sdr/2013FA0000435), Aug 8, 2013: Cirrus SR20. BRACKET. CRACKED. ALTERNATOR BRACKET HAS CRACKS FORMED AROUND THE UPPER AFT BOLT AS SEEN FROM ABOVE. All 135: https://openairdocs.org/jasc/8000/reports.md ## Other codes in chapter 80 - [JASC 8010](https://openairdocs.org/jasc/8010): Engine Cranking (318 reports) - [JASC 8011](https://openairdocs.org/jasc/8011): Engine Starter (1,467 reports) - [JASC 8012](https://openairdocs.org/jasc/8012): Engine Start Valves/Controls (839 reports) - [JASC 8097](https://openairdocs.org/jasc/8097): Engine Starting System Wiring (117 reports) --- From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.