# JASC 2435: Starter-Generator

- Type: JASC system/component code (FAA)
- ATA chapter: 24 Electrical Power
- Title in the code table: STARTER-GENERATOR
- Service difficulty reports: 2,052
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=21
- Page: https://openairdocs.org/jasc/2435

## What it covers

The single component used for both engine starting and direct current generation on turbine engines. Typical parts are bearing, shaft, brush, fan, retainer ring, armature, brush, housing, end bell, terminal, etc.

## Service difficulty reports (2,052, newest 50)

- [SDR DALA2026081404663](https://openairdocs.org/sdr/DALA2026081404663), Aug 13, 2026: Boeing 737932ER. STARTER GEN. BURNED. APU KICKED OFF WHILE SITTING AT THE GATE, STRONG ODOR ( ELECTRICAL ODOR) BUT NO FAIL INDICATION OR APU LIGHTS. APU CONTI (N865DN)
- [SDR XU5A2026080600173](https://openairdocs.org/sdr/XU5A2026080600173), Aug 4, 2026: Bolkms BK117C2. STARTER GEN. INOPERATIVE. THE AIRCRAFT A LOSS OF LOAD INDICATION ON THE NR 2 GENERATOR FOLLOWED BY A BAT DISCHARGE CAUTION LIGHT. UPON INSPECTION  (N903SH)
- [SDR EE0A202605310001](https://openairdocs.org/sdr/EE0A202605310001), May 31, 2026: Lear 31A. STARTER GEN. FAILED. RT ENGINE FAILD TO RATATE ON START. REPLACED RT STARTER GENERATOR. (N631KA)
- [SDR 2026FA0000229](https://openairdocs.org/sdr/2026FA0000229), Mar 26, 2026: Bell 407. BRUSHES. WORN. FOUND ONE BRUSH ONLY OF FOUR, WORN TO METAL, CONTACTING ARMATURE. STARTER / GENERATOR, BELL P/N: 206-062-200-113, MFR P/ (N407WF)
- [SDR Q5QA20260206001](https://openairdocs.org/sdr/Q5QA20260206001), Jan 30, 2026: Pilats PC1245. STARTER GEN. VIBRATION. THE PILOT NOTICED AN ENGINE VIBRATION ON DECENT INTO READING REGIONAL AIRPORT. THE #1 STARTER- GENERATOR PART NUMBER A 2 (N119QD)
- [SDR DALA2025123109544](https://openairdocs.org/sdr/DALA2025123109544), Dec 30, 2025: Boeing 737932ER. STARTER GEN. ODOR. AT GATE READY TO PUSH. STRONG FUME ODOR ON FLIGHT DECK. AFT FLIGHT ATT CALLED SAYING SMELL OF SMOKE IN AFT OF AIRPLANE.  (N921DU)
- [SDR DXTA2025122206164](https://openairdocs.org/sdr/DXTA2025122206164), Dec 17, 2025: Cessna 680A. STARTER GEN. DAMAGED. DURING ENGS START, APU DRAW REACHED 1100 AMPS MOMENTARILY & REMAINED ABOVE 700 FOR THE DURATION OF PROCESS WHILE BATTERI (N639QS)
- [SDR QMLA2025112220115](https://openairdocs.org/sdr/QMLA2025112220115), Nov 18, 2025: Urocop EC135T2. STARTER GEN. FAULTED. WHILE CONDUCTING STARTUP CHECKS AND UPON ENGINES REACHING IDLE, THE NR 1 GEN DISCON CAUTION LIGHT ILLUMINATED. REPLACED  (N954AL)
- [SDR Q5QA20251106002](https://openairdocs.org/sdr/Q5QA20251106002), Nov 6, 2025: Pilats PC1245. STARTER GEN. INOPERATIVE. THE PC-12 AIRCRAFT WAS IN TRANSITION FROM KGNV (GAINESVILLE FL) TO KVDF (TAMPA FL) WHEN THE PILOT EXPERIENCED A FAILURE  (N636QD)
- [SDR DXTA2025110305525](https://openairdocs.org/sdr/DXTA2025110305525), Oct 31, 2025: Emb EMB505. STARTER GEN. FAULTED. GEN 1 OFF BUS YELLOW CAS IN FLIGHT WITH ASSOCIATED VIBRATION. RAN CHECKLIST AND EVENTUALLY SHUT DOWN LEFT ENGINE PER QRH (N417QS)
- [SDR 2025FA0000689](https://openairdocs.org/sdr/2025FA0000689), Oct 7, 2025: Beech 2000. STARTER GEN. UNSERVICEABLE. THE ENGINE DID NOT START. WE FOLLOWED STANDARD PROCEDURES AND CONTACTED THE DIRECTOR OF MAINTENANCE (DOM). AS A RESULT,  (N997LM)
- [SDR 2025FA0000677](https://openairdocs.org/sdr/2025FA0000677), Oct 2, 2025: Snias AS350B2. BRUSHES. FAULTED. ON 26 SEPT, DURING A PATIENT TRANSPORT FLIGHT, THE PILOT REPORTED CRITICALLY LOW VOLTAGE, ALL ELECTRONICS LOST AND MADE  (N822RU)
- [SDR CALA2025091909049](https://openairdocs.org/sdr/CALA2025091909049), Sep 17, 2025: Boeing 737724. STARTER GEN. FAULTED. APU DROPPED OFF LINE PUT THE GENERATORS OFF, BACK ON, THE APU BUSS STRONG SMOKE ODOR. R & R APU STARTER/GENERATOR IAW AM (N17753)
- [SDR QR9R2025082700001](https://openairdocs.org/sdr/QR9R2025082700001), Aug 27, 2025: Bolkms BK117C2. STARTER GEN. FLUCTUATES. IN FLIGHT #1 GEN READ 15-20 WHILE #2 READ 45-50. ON THE GROUND AT IDLE THEY WERE WITHIN 10. ONCE AVIONICS WERE OFF, #1 W
- [SDR DXTA2025080604455](https://openairdocs.org/sdr/DXTA2025080604455), Aug 3, 2025: Emb EMB505. STARTER GEN. FAILED. ON FIRST LEG OF THE DAY, DURING DECENT GEN 1 OFF BUS CAS MESSAGE DISPLAYED. RAN APPROPRIATE QRH AND MESSAGE CLEARED. MES (N478QS)
- [SDR QR9R2025070300002](https://openairdocs.org/sdr/QR9R2025070300002), Jul 3, 2025: Bolkms BK117C2. STARTER GEN. FLUCTUATES. GEN AMPS SPLIT GREATER THAN 10 (GEN 1: 30; GEN 2: 50 AT FLIGHT). A TEST PILOT EVAL FOUND #2 GEN AMPS CLIMBED TO 70 AS #1
- [SDR DXTA2025070304089](https://openairdocs.org/sdr/DXTA2025070304089), Jun 29, 2025: Cessna 680A. STARTER GEN. VIBRATION. CONSISTENT RESONANCE VIBRATION IN YOKE FLIGHT CONTROLS WITH AUTO PILOT ON AND OFF IN FAIRLY STABLE AIR. NOTICEABLE IN MU (N564QS)
- [SDR CJPA202506250001](https://openairdocs.org/sdr/CJPA202506250001), Jun 22, 2025: Lear 60LEAR. STARTER GEN. SHEARED. (KDAL TO KAPA) AND THE FO WAS THE PILOT FLYING. THERE WERE NO PASSENGERS ONBOARD. AT CRUISE ALTITUDE (FL400) A R GEN LIG (N787TS)
- [SDR 2025FA0000405](https://openairdocs.org/sdr/2025FA0000405), Jun 16, 2025: Beech 200CBEECH. STARTER GEN. MALFUNCTIONED. DURING CLIMB OUT OF KELP AIRCRAFT EXPERIENCED DUAL GENERATOR FAILURE AND LOST COMMUNICATION WITH ATC. AFTER PILOT RESET  (N774LK)
- [SDR 2025FA0000190](https://openairdocs.org/sdr/2025FA0000190), Mar 14, 2025: Airtrc AT802A. STARTER GEN. BROKEN. WHILE PERFORMING STARTER GENERATOR BRUSH INSPECTION DISCOVERED BRUSH RETAINER SPRING BROKEN AND ARCED AGAINST STARTER GE (N8005T)
- [SDR CVGA20250317001](https://openairdocs.org/sdr/CVGA20250317001), Mar 13, 2025: Beech B300. STARTER GEN. FAILED. IN FLIGHT-RECEIVED R GEN TIE CASS MESSAGE -LOST RIGHT PILOT HEAT -LOST RIGHT PFD -LOST AUTOPILOT R GEN WOULD NOT RESET - (N828UP)
- [SDR 2025FA0000189](https://openairdocs.org/sdr/2025FA0000189), Mar 3, 2025: Airtrc AT802A. STARTER GEN. BROKEN. WHILE PERFORMING STARTER GENERATOR BRUSH INSPECTION FOUND BRUSH RETAINER SPRING BROKEN AND SHEERED BRUSH LEAD CAUSING AR (N8035H)
- [SDR 4EZF20250215001](https://openairdocs.org/sdr/4EZF20250215001), Feb 10, 2025: Saab 340B. STARTER GEN. DEFECTIVE. FLIGHT CREW PIREP: RIGHT ENGINE WOULD NOT START - AFTER TROUBLESHOOTING MAINTENANCE REPLACED THE RT STARTER GENERATOR &  (N417XJ)
- [SDR QMLA2025020620013](https://openairdocs.org/sdr/QMLA2025020620013), Feb 5, 2025: Urocop EC135P1. O-RING. LEAKING. ON POST FLIGHT INSPECTION OIL LEAK WAS DISCOVERED. TIGHTENED LOOSE LINE ON ACCESSORY GEARBOX, INSTALLED O-RING ON STARTE (N102HN)
- [SDR HEEA202412230001](https://openairdocs.org/sdr/HEEA202412230001), Dec 18, 2024: Bolkms BK117A1. STARTER GEN. INOPERATIVE. DURING CRUISE FLIGHT SYSTEM 1 & SYSTEM 2 BUS TIE OPEN CAUTION LIGHT ILLIMINATED. PERFORMED CHECKLIST PROCEDURE AND RETUR (N343PH)
- [SDR QR9R2024111200001](https://openairdocs.org/sdr/QR9R2024111200001), Nov 12, 2024: Bolkms BK117C2. STARTER GEN. FAILED. AFTER ADVANCING TWIST GRIPS TO FLIGHT, ENG 2 DC VOLTAGE SHOWED 28.2 FLICKERING TO 28.0. AFTER TURNING ON THE LANDING LIG
- [SDR QR9R2024100800007](https://openairdocs.org/sdr/QR9R2024100800007), Oct 8, 2024: Bolkms BK117C2. STARTER GEN. FAULTY. DURING RUN-UP, #2 VOLTAGE INDICATOR SPIKED TO 32V WITH RED UNDERLINE AND SINGLE WARNING GONG. ONLY RIGHT SIDE MASTER CAU
- [SDR QMLA2024100420129](https://openairdocs.org/sdr/QMLA2024100420129), Oct 3, 2024: Urocop EC135P2. STARTER GEN. FAULTED. UPON CLIMB OUT, BATTERY DISCHARGE LIGHT ILLUMINATED AND SUBSEQUENT AUDIBLE ALARM, IT WENT OFF AND ON TWICE, OBSERVED VOL (N136KY)
- [SDR QR9R2024092400002](https://openairdocs.org/sdr/QR9R2024092400002), Sep 24, 2024: Bolkms BK117C2. STARTER GEN. WARNING MESSAGE. DURING #2 ENGINE START, #2 GEN DISCON CAUTION APPEARED RAPIDLY APPROXIMATELY 5-6 TIMES. AIRCRAFT START WAS ABORTED AND U
- [SDR QR9R2024091900006](https://openairdocs.org/sdr/QR9R2024091900006), Sep 19, 2024: Bolkms BK117C2. STARTER GEN. FLUCTUATES. #2 GENERATOR FLUCTUATES BETWEEN 0 AND 775 AMPS IN FLIGHT. DURING PREFLIGHT FOR MTF RECOVERY, FOUND #2 GENERATOR TO HAVE 
- [SDR QMLA2024091920118](https://openairdocs.org/sdr/QMLA2024091920118), Sep 18, 2024: Urocop EC130B4. STARTER GEN. FAILED. STAR GEN FAILED ON APPROACH. WOULD NOT RESET. (N336AM)
- [SDR QR9R2024091000001](https://openairdocs.org/sdr/QR9R2024091000001), Sep 10, 2024: Bolkms BK117C2. STARTER GEN. MALFUNCTIONED. DURING FLIGHT, BATTERY DISCHARGE CAUTION ILLUMINATED INTERMITTENT, THEN CONSTANT WITH #2 GENERATOR AMPS FLUCTUATING FROM
- [SDR 2024F00242](https://openairdocs.org/sdr/2024F00242), Aug 31, 2024: Pilats PC1245. STARTER GEN. FAILED. ROUGHLY 20-30 MINUTES INTO FLIGHT KBOI-KOGD, GEN 1 OFF AND N ESNTL BUS CAWS INDICATIONS ILLUMINATED. PILOT RAN QRH PROCE (N499CB)
- [SDR 2024F00241](https://openairdocs.org/sdr/2024F00241), Aug 31, 2024: Pilats PC1245. STARTER GEN. FAILED. ROUGHLY 20-30 MINUTES INTO FLIGHT KBOI-KOGD, GEN 1 OFF AND N ESNTL BUS CAWS INDICATIONS ILLUMINATED. PILOT RAN QRH PROCE (N499CB)
- [SDR 2024F00240](https://openairdocs.org/sdr/2024F00240), Aug 31, 2024: Pilats PC1245. STARTER GEN. FAILED. ROUGHLY 20-30 MINUTES INTO FLIGHT KBOI-KOGD, GEN 1 OFF AND N ESNTL BUS CAWS INDICATIONS ILLUMINATED. PILOT RAN QRH PROCE (N499CB)
- [SDR 2024FA0000624](https://openairdocs.org/sdr/2024FA0000624), Aug 20, 2024: Robsin R44. STARTER. DETERIORATED. SKYTECH STARTERS HAVE ALWAYS BEEN THE GO TO & BEST IN THE BUSINESS BUT IN THE LAST YEAR OR 2 THEY HAVE MASSIVELY GONE DO (N832AK)
- [SDR AALA202408084006](https://openairdocs.org/sdr/AALA202408084006), Aug 7, 2024: Airbus A319112. CONTACTOR. FAULTY. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO TPA DUE TO THE FLIGHT CREW REPORTING THAT  (N740UW)
- [SDR AALA202408083700](https://openairdocs.org/sdr/AALA202408083700), Jul 31, 2024: Boeing 777223. STARTER GEN. FAULTY. AIRCRAFT WAS GROUNDED: EICAS MESSAGE ENG FUEL FILTER L. FOLLOWED BY STATUS MESSAGES: EN,G SCAV OIL FILT L, ENG HP OIL FI (N768AA)
- [SDR DXTA2024072912471](https://openairdocs.org/sdr/DXTA2024072912471), Jul 27, 2024: Cessna 680CE. STARTER GEN. FAILED. DURING CLIMB DC EMER BUSCAS R ILLUMINATED AT APPROX 23000 FT. ALSO AMBER MESSAGES HYDRAULIC VOLUME LOW, ENGINE CONTROL F (N369QS)
- [SDR QR9R2024032100001](https://openairdocs.org/sdr/QR9R2024032100001), Mar 21, 2024: Bolkms BK117C2. STARTER GEN. FAILED. #2 GENERATOR FAILED IN FLIGHT. TEST FLIGHT EVALUATION REVEALED #2 GENERATOR WOULD NOT START AIRCRAFT (NO RISE OF N1 DURI
- [SDR 2024FA0000257](https://openairdocs.org/sdr/2024FA0000257), Mar 15, 2024: Pilats PC1247. STARTER GEN. FAILED INSP. DURING VISUAL INSPECTION IT WAS NOTED THAT THE STARTER-GENERATOR BRUSHES WERE WORN TO NEAR 1/4 LIFE REMAINING MARKS. UPO (N739S)
- [SDR QR9R2024020800001](https://openairdocs.org/sdr/QR9R2024020800001), Feb 8, 2024: Bolkms BK117C2. STARTER GEN. WARNING LIGHT. TOOK 3 ATTEMPTS TO START ENGINE #2. WHILE CONTINUING THROUGH THE RUN-UP, ENGINE 2 GEN DISC CAME ON AND WOULD NOT EXTINGU
- [SDR Q5QA20240202002](https://openairdocs.org/sdr/Q5QA20240202002), Feb 2, 2024: Pilats PC1245. STARTER GEN. FAILED. AIRCRAFT N465QD MSN:465 FAILED TO START AT MEM INTERNATIONAL AIRPORT. THE #1 STARTER- GENERATOR PART NUMBER A 23085-029, (N465QD)
- [SDR DXTA2024020210786](https://openairdocs.org/sdr/DXTA2024020210786), Feb 1, 2024: Emb EMB505. SEAL. FAILED. DESCENDING IN TO DALLAS WE GOT A GEN 1 OFF CAS ALONG WITH A VIBRATION. WE RAN THE CHECKLIST AND CONFIRMED A GEN 1 FAILUR (N453QS)
- [SDR 2024F00041](https://openairdocs.org/sdr/2024F00041), Jan 25, 2024: Pilats PC1247. STARTER GEN. FAILED. DURING ENGINE START, STARTER-GENERATOR FAILED. STARTER-GENERATOR HAD 675.4 HOURS TSO. BRUSHES WERE FOUND TO BE WORN TO L (N739S)
- [SDR 2023FA0000838](https://openairdocs.org/sdr/2023FA0000838), Dec 18, 2023: Beech B300. STARTER GEN. FAILED. WHEN STARTING LEFT ENGINE AND BRINGING LEFT GENERATOR ON LINE IT WOULD NOT COME ON LINE. I CHECKED TO MAKE SURE IGNITION (N826UP)
- [SDR 2023FA0000505](https://openairdocs.org/sdr/2023FA0000505), Sep 1, 2023: Lear 45LEAR. STARTER GEN. FAILED. RIGHT ENGINE STARTER/GENERATOR FAILED IN FLIGHT WITH NO INDICATION OF FAILURE. RESULTS OF THE INDICATION FAILURE RESULTE (N842MB)
- [SDR QR9R2023081400004](https://openairdocs.org/sdr/QR9R2023081400004), Aug 14, 2023: Bolkms BK117C2. STARTER GEN. FAILED. #2 GENERATOR FAILED ON GROUND. A TEST FLIGHT EVAL DETECTED NO RISE IN N1 WHEN TRYING TO START #2 ENGINE. REMOVED AND REP
- [SDR QR9R2023081400003](https://openairdocs.org/sdr/QR9R2023081400003), Aug 14, 2023: Bolkms BK117C2. STARTER GEN. FAILED. DURING RUN-UP, THE #1 AND #2 GENERATOR HAD A GREATER THAN 10 AMP DIFFERENCE. AVIONICS TROUBLESHOT AND THE #2 GENERATOR W
- [SDR YQKA202308090001](https://openairdocs.org/sdr/YQKA202308090001), Aug 10, 2023: Beech 400A. STARTER GEN. MISOVERHAULED. STARTER/GENERATOR ORDERED AND RECEIVED. UPON INSPECTION OF STARTER/ GENERATOR IT WAS FOUND THAT ONE OF THE FOUR BRUSH TE (N917E)

All 2,052: https://openairdocs.org/jasc/2435/reports.md

## Other codes in chapter 24

- [JASC 2400](https://openairdocs.org/jasc/2400): Electrical Power System (1,186 reports)
- [JASC 2410](https://openairdocs.org/jasc/2410): Alternator-Generator Drive (891 reports)
- [JASC 2420](https://openairdocs.org/jasc/2420): AC Generation System (1,302 reports)
- [JASC 2421](https://openairdocs.org/jasc/2421): AC Generator-Alternator (4,272 reports)
- [JASC 2422](https://openairdocs.org/jasc/2422): AC Inverter (557 reports)
- [JASC 2423](https://openairdocs.org/jasc/2423): Phase Adapter (15 reports)
- [JASC 2424](https://openairdocs.org/jasc/2424): AC Regulator (480 reports)
- [JASC 2425](https://openairdocs.org/jasc/2425): AC Indicating System (137 reports)
- [JASC 2430](https://openairdocs.org/jasc/2430): DC Generating System (1,120 reports)
- [JASC 2431](https://openairdocs.org/jasc/2431): Battery Overheat Warning System (82 reports)
- [JASC 2432](https://openairdocs.org/jasc/2432): Battery/Charger System (2,249 reports)
- [JASC 2433](https://openairdocs.org/jasc/2433): DC Rectifier/Converter (197 reports)
- [JASC 2434](https://openairdocs.org/jasc/2434): DC Generator-Alternator (849 reports)
- [JASC 2436](https://openairdocs.org/jasc/2436): DC Regulator (313 reports)
- [JASC 2437](https://openairdocs.org/jasc/2437): DC Indicating System (98 reports)
- [JASC 2440](https://openairdocs.org/jasc/2440): External Power System (169 reports)
- [JASC 2450](https://openairdocs.org/jasc/2450): AC Power Distribution System (872 reports)
- [JASC 2460](https://openairdocs.org/jasc/2460): DC Power Distribution System (608 reports)
- [JASC 2497](https://openairdocs.org/jasc/2497): Electrical Power System Wiring (2,202 reports)

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