# JASC 2497: Electrical Power System Wiring

- Type: JASC system/component code (FAA)
- ATA chapter: 24 Electrical Power
- Title in the code table: ELECTRICAL POWER SYSTEM WIRING
- Service difficulty reports: 2,202
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=21
- Page: https://openairdocs.org/jasc/2497

## What it covers

For reports indicating a problem with wiring specific to the Electrical Power Systems not reportable in the Power Distribution Systems.

## Service difficulty reports (2,202, newest 50)

- [SDR 2026FA0000837](https://openairdocs.org/sdr/2026FA0000837), Oct 15, 2026: Airbus A330*. CIRCUIT BREAKER. ARCED. DURING THE REPLACEMENT OF THE DAMAGED CB 11DA3 (NRC 21423-0291), WE FOUND A SERIOUS CASE OF ARCING BEHIND THE CB-PANEL 7 (N873C)
- [SDR CALA2026100820220](https://openairdocs.org/sdr/CALA2026100820220), Oct 7, 2026: Boeing 7379. PIN. LOOSE. GEN 1 AMBER DRIVE LIGHT BURNED OUT, ACCOMPLISHED FIM 24-11 TASK 803, STEP C: FAULT ISOLATION UP TO STEP 2(D). RELAMPED,  (N17432)
- [SDR CALA2026101320340](https://openairdocs.org/sdr/CALA2026101320340), Sep 27, 2026: Airbus A319131. FEEDER CABLE. DAMAGED. DURING ALI VISIT, FOUND RT PYLON IDG FEEDER CABLE WIRE 2422-4519 INSULATION DAMAGED UNDER PANEL 521BT BETWEEN RIB 5A & P (N827UA)
- [SDR FE6R202608130001](https://openairdocs.org/sdr/FE6R202608130001), Aug 13, 2026: Amd FALCON2000EX. FEEDER CABLE. MELTED. PILOTS REPORTED GENERATOR NO.1 FAIL IN FLIGHT APPROXIMATELY 10 MINUTES AFTER TAKEOFF AND RETURNED TO THE FIELD, UNEVENTF (N2652)
- [SDR 2026FA0000638](https://openairdocs.org/sdr/2026FA0000638), Aug 13, 2026: Amd FALCON2000EX. FEEDER CABLE. MELTED. PILOTS REPORTED GENERATOR NO. 1 FAIL IN FLIGHT APPROX. 10 MINUTES AFTER TAKEOFF AND RETURNED TO THE FIELD, UNEVENTFUL LA (N2652)
- [SDR DXTA2026071708818](https://openairdocs.org/sdr/DXTA2026071708818), Jul 14, 2026: Cndair CL6002B16. WIRE. DAMAGED. DURING POST FLIGHT WHILE COMPLETING MAINTENANCE WRITE UP, COPILOT WENT TO OPEN FLIGHT ATTENDANT CONTROL PANEL TO COLLAR  (N258QS)
- [SDR UIEA2026062400538](https://openairdocs.org/sdr/UIEA2026062400538), Jun 25, 2026: Boeing 74745E. FEEDER CABLE. DAMAGED. FOUND NR 4 ENG POWER FEEDER CABLE (W282-043-210) DAMAGE AT B/H WING REFUELING STATION IAW SWPM 20-30-13 REV 2, WDM 24-12 (N473MC)
- [SDR IPXA2026062170595](https://openairdocs.org/sdr/IPXA2026062170595), Jun 21, 2026: Boeing 7478F. IDG. FAULTED. AIR TURN BACK. EMERGENCY DECLARED, LOAD SHED ISLN BUSS TIE 1, 3, 4 ALL OFFLINE ONLY NR 2 BUSS TIE CLOSE, EICAS MESSAGES  (N613UP)
- [SDR H4QA20260619001](https://openairdocs.org/sdr/H4QA20260619001), Jun 16, 2026: Bell 205A1. RELAY. FAILED. ENROUTE TO A DIP SITE FOR ANOTHER BUCKET OF WATER THE PILOT SMELLED ELECTRICAL SMOKE IN THE CABIN OF THE AIRCRAFT. ODOR  (N3804C)
- [SDR ENHA202606010001](https://openairdocs.org/sdr/ENHA202606010001), May 28, 2026: Cessna 207A. WIRE. BROKEN. AFTER TAKE-OFF, PILOT SMELLED SMOKE AND LOOKED AT GAGES AND ENGINE OIL TEMP SHOWED "0". PILOT TURNED AROUND AND LANDED.  (N207YH)
- [SDR DALA2026052803228](https://openairdocs.org/sdr/DALA2026052803228), May 24, 2026: Boeing 717200. ELEC CONNECTOR. DAMAGED. ATO- DISCONTINUED TAKEOFF ROLL AFTER RECEIVING A RIGHT ENGINE GENERATOR OFF MESSAGE. MAINTENANCE FOUND A PCDU CONNECTOR  (N990AT)
- [SDR CALA2026051516290](https://openairdocs.org/sdr/CALA2026051516290), May 14, 2026: Airbus A321271NX. ELECTRICAL BOX. FAULTED. EXPOSED WIRE AND LOCALIZED TICKING NOISE COMING FROM BELOW ROW 34/35 ABC. IDENTIFIED THE CAUSE AND REPLACED THE PART WIT (N14553)
- [SDR AALA202605136039](https://openairdocs.org/sdr/AALA202605136039), May 12, 2026: Airbus A321231. CONTACT. BURNED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INTO ORD DUE TO THE FLIGHT CREW REPORTING THAT THE NR 1 GENERATOR FAILE (N521UW)
- [SDR 2026FA0000320](https://openairdocs.org/sdr/2026FA0000320), May 4, 2026: Tecnam P2006T. TERMINAL. INCORRECT. RIGHT CROSS TIE BUS WOULD NOT POWER ON (POWERS THE MFD, NAV LIGHTS, RUDDER TRIM, RH ALT FIELD). FOUND LOOSE TERMINAL CON (N605VA)
- [SDR DALA2026041802458](https://openairdocs.org/sdr/DALA2026041802458), Apr 17, 2026: Airbus A321213. RECEPTACLE. FIRE. FIRE - COCKPIT FILLED WITH SMOKE WHILE THE AIRCRAFT WAS ON THE GROUND WITH THE EXTERNAL POWER CONNECTED. FIRE IN FWD E & (N310DN)
- [SDR HNAA2026040800276](https://openairdocs.org/sdr/HNAA2026040800276), Apr 7, 2026: Emb EMB145LR. WIRE. FAILED INSP. BATTERY 1 OVERTEMP IN FLIGHT, 74C. T/S PER FIM TASK 24-36-00-810-805-A. WIRE W002-0001-20WH FOR PIN B ON CONNECTOR P1007 (N922AE)
- [SDR HNAA2026040300254](https://openairdocs.org/sdr/HNAA2026040300254), Apr 3, 2026: Emb EMB145LR. GROUND WIRE. BURNED. BURNING SMELL COMING FROM FLIGHT DECK ON GROUND. MEL`D THE AIR CONDITIONING PACKS. DISCOVERED GRD WIRE W325-0005 IB FUEL (N660CL)
- [SDR 2026FA0000239](https://openairdocs.org/sdr/2026FA0000239), Mar 30, 2026: Pilats PC1247. WIRE. BROKEN. PILOT REPORTED DURING DESCENT INTO PSO WHILE REDUCING POWER TO SLOW, ALL ELECTRICAL POWER WAS LOST FOR APPROXIMATELY 3 S (N207N)
- [SDR AALA202603312668](https://openairdocs.org/sdr/AALA202603312668), Mar 27, 2026: Boeing 7378. POWER PORT. BURNED. AIRCRAFT WAS GROUNDED: ELECTRICAL SMELL FROM ROWS 19-20 DESCRIBED AS PLASTIC BURNING SMELL AND PERSISTENT FROM MULTIPLE  (N306SW)
- [SDR 2026FA0000208](https://openairdocs.org/sdr/2026FA0000208), Mar 24, 2026: Boeing 7673Y0. FEEDER CABLE. WRONG PART. DURING PREPARATION FOR NR 2 ENG COOLING BAROMETRIC SWITCH OPC FOUND DAMAGED SCREW AT NACELLE ZONE VENT SHUTOFF VALVE. AF (N1619A)
- [SDR SWIA2026031275620](https://openairdocs.org/sdr/SWIA2026031275620), Mar 12, 2026: Cndair CL6002C10. WIRE. ARCED. LEFT PYLON SUPPORT HAS BURN DAMAGE FROM ARCING IDG WIRE. IAW SRM 54-51-06, ITEM 59. REF CP 31870931 FOR IDG WIRE. COMPLI (N797SK)
- [SDR IXXA202603192023](https://openairdocs.org/sdr/IXXA202603192023), Mar 12, 2026: Boeing 767323. CIRCUIT BREAKER. BURNED. AFTER PUSHBACK AND CONFIGURED FOR DE-ICING A STRONG ELECTRICAL / PLASTIC BURNING SMELL WAS NOTICED. CREW ELECTED TO RETU (N395CM)
- [SDR CALA2026031114493](https://openairdocs.org/sdr/CALA2026031114493), Mar 10, 2026: Boeing 7673CB. FEEDER CABLE. DAMAGED. DURING INSPECTION ON NR 2 ENGINE, FOUND IDG FEEDER CABLE HAS BARE WIRE EXPOSED. FEEDER CABLE RE-SLEEVED AND INSTALLED IA (N684UA)
- [SDR CALA2026030314261](https://openairdocs.org/sdr/CALA2026030314261), Mar 2, 2026: Boeing 737824. CIRCUIT BREAKER. OPEN. NO DUCT PRESSURE ON APU. NO DUAL BLEED LIGHT. REQUESTING PER MEL 4907A. C/W DDP. APPROVED MEL 4907A. APPLIED STICKER. RT (N36280)
- [SDR AALA202603025315](https://openairdocs.org/sdr/AALA202603025315), Feb 27, 2026: Boeing 7878. FEEDER CABLE. LOOSE. AIRCRAFT WAS GROUNDED: AT CRUISE FL390 AIRFLOW SURGED HIGH AND LOW FOLLOWED BY FLICKERING OF ALL PILOT DISPLAYS AND PANE (N879BH)
- [SDR AALA202603023377](https://openairdocs.org/sdr/AALA202603023377), Feb 27, 2026: Boeing 7878. FEEDER CABLE. LOOSE. AIRCRAFT WAS GROUNDED: AT CRUISE FL390 AIRFLOW SURGED HIGH AND LOW FOLLOWED BY FLICKERING OF ALL PILOT DISPLAYS AND PANE (N879BH)
- [SDR AALA202603027419](https://openairdocs.org/sdr/AALA202603027419), Feb 27, 2026: Boeing 7878. ELEC CONNECTOR. LOOSE. AIRCRAFT WAS GROUNDED: AT CRUISE FL390 AIRFLOW SURGED HIGH AND LOW FOLLOWED BY FLICKERING OF ALL PILOT DISPLAYS AND PANE (N879BH)
- [SDR 2026FA0000023](https://openairdocs.org/sdr/2026FA0000023), Jan 12, 2026: Piper PA44180. BATTERY CABLE. BROKEN. NEGATIVE BATTERY CABLE TERMINAL END BROKEN (N318PA)
- [SDR DALA2026011500351](https://openairdocs.org/sdr/DALA2026011500351), Jan 11, 2026: Airbus A350941. CONTACTOR. FAULTED. AIR TURNBACK, DUE TO ELEC DC EMER 2 PART BUS FAIL ECAM MESSAGE ALONG WITH NR 2 BLEED, ADIRS AND OTHER MESSAGES. REPLACED (N516DN)
- [SDR 2026FA0000013](https://openairdocs.org/sdr/2026FA0000013), Jan 9, 2026: Cessna 525C. GROUND STUD. LOOSE. RIGHT GENERATOR TAKES 100% OF THE LOAD ONCE IN CRUISE. IF CUSTOMER TURNS OFF THE RT GENERATOR IN FLT, THE LT GENERATOR T (N67DZ)
- [SDR CALA2026011212871](https://openairdocs.org/sdr/CALA2026011212871), Jan 7, 2026: Boeing 7879. RESISTOR. BURNED. MANY STATUS MSGS NITRO GEN SYS ELEC ENG START R2. FOUND R2 ATRUC TRIPPED ON ESIC. PRESENT LEG FAULT MAINTENCE MSG 24-175 (N27959)
- [SDR UIEA2025121201341](https://openairdocs.org/sdr/UIEA2025121201341), Dec 12, 2025: Boeing 74747UF. ELEC CONNECTOR. DAMAGED. NO NAI INDICATION FOR ENG 1 NAI VALVE IS ON DEFERRAL DMI 243009 AND LOCKED OPEN, & CONNECTOR IS REMOVED. RAN ENGINE IAW  (N412MC)
- [SDR AALA202512095799](https://openairdocs.org/sdr/AALA202512095799), Dec 8, 2025: Boeing 737823. ELEC CONNECTOR. DAMAGED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: INTERMITTENT SPEED LIMITS FLAG ON BOTH PRIMARY FLIGHT DISPLAY A (N962AN)
- [SDR SCNA20251201453](https://openairdocs.org/sdr/SCNA20251201453), Nov 27, 2025: Boeing 73783N. WIRE. SHORTED. INTERMITTENT SMELL OF SHORTING WIRE OR ELECTRICAL NEAR CAPTAINS SIDE MASTER CAUTION DURING FLIGHT PERFORMED AMM TASK 21- (N5167A)
- [SDR AALA202511245106](https://openairdocs.org/sdr/AALA202511245106), Nov 22, 2025: Boeing 737823. BUSS. INOPERATIVE. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AT FL350 IN CRUISE LEFT TRANSFER BUSS OFF AND SOURCE OFF LIGHT  (N314PD)
- [SDR 2025FA0000751](https://openairdocs.org/sdr/2025FA0000751), Nov 6, 2025: Beech 95B55. WIRE. SHORTED. WE TURNED THE BATTERY MASTER ON TO TEST A LANDING LIGHT THAT WAS REPORTED TO BE OUT. AFTER ABOUT ONE MINUTE OF THE BATTE (N1116T)
- [SDR CALA2025110510923](https://openairdocs.org/sdr/CALA2025110510923), Nov 3, 2025: Boeing 777222. WIRE. BURNED. MAINTENANCE MESSAGE 24-13063 POWER BUS AC GND SVCE SEC 1 BUS IN P320 IS NOT POWERED, PERFORMED A COMPLETE GROUND SERVICE (N215UA)
- [SDR DALA2025110508072](https://openairdocs.org/sdr/DALA2025110508072), Nov 3, 2025: Airbus A319114. WIRE HARNESS. FAILED. FA REPORTED BURNING ELECTRICAL SMELL IN FORWARD CABIN WHILE AT CRUISE FLIGHT. R & R HARNESS FROM J14 TO SDU'S IAW PAC AM (N329NB)
- [SDR ENHA20251101002](https://openairdocs.org/sdr/ENHA20251101002), Nov 1, 2025: Cessna 208B. SCREW. LOOSE. AFTER SECURING LOOSE SCREW ON BUS 2 STANDBY POWER CIRCUIT BREAKER (LOG PAGE 263019)AND SUCCESSFUL CHECK FLIGHT THE AIRCR (N407GV)
- [SDR CALA2025103110777](https://openairdocs.org/sdr/CALA2025103110777), Oct 28, 2025: Airbus A319132. FEEDER CABLE. ARCED. GENERATOR 2 FAULT AFTER ENGINE START. COMPLIED WITH ECAM. MSG REMAINS. CREW RESET NO HELP. CREW COMPLIED WITH MEL IDG DI (N872UA)
- [SDR CALA2025101309947](https://openairdocs.org/sdr/CALA2025101309947), Oct 9, 2025: Boeing 757324. TERMINAL. DAMAGED. PILOT REPORTS FLAP/SLAT ELEC STATUS MESSAGEFSEU 1 IS UNPOWERED ALSO CAUSING A WARN ELEX STATUS MSG. STALL WARNING RIGHT  (N57855)
- [SDR 2025FA0000666](https://openairdocs.org/sdr/2025FA0000666), Sep 28, 2025: Cessna 172M. WIRE HARNESS. CHAFED. THE BATTERY BOX FOR THE LEAD ACID BATTERY INTERFERES WITH THE LEFT MAGNETO HARNESS AND CHAFES THE HARNESS LEADS OVER TIM (N61789)
- [SDR NACA2025092400001](https://openairdocs.org/sdr/NACA2025092400001), Sep 24, 2025: Boeing 7673BG. INSULATION. DAMAGED. NR 2 ENG IDG WIRING INSULATION DAMAGED IN NUMEROUS AREAS. R & R THE DAMAGED IDG WIRING IAW WDM 24-21-21 AND SWPM 20-30-1 (N563NC)
- [SDR DALA2025091506783](https://openairdocs.org/sdr/DALA2025091506783), Sep 14, 2025: Airbus A319114. CIRCUIT BREAKER. TRIPPED. DURING FLIGHT OPERATIONAL TEST GOT CIRCUIT BREAKER H07 TRIPPED. REPLACED CIRCUIT BREAKER H07 ON OVERHEAD PANEL 49VU IAW  (N357NB)
- [SDR 2025FA0000640](https://openairdocs.org/sdr/2025FA0000640), Sep 12, 2025: Emb EMB550. DISTRIBUTION BOX. FAULTED. WHILE EN ROUTE TO KADS FROM KHPN AT 45,000 FEET, APPROXIMATELY 1.5 HOURS INTO OUR FLIGHT, THE BATT 2 DISCHARGING CAS MES (N622LM)
- [SDR CALA2025091008728](https://openairdocs.org/sdr/CALA2025091008728), Sep 8, 2025: Boeing 757224. WIRE. BURNED. MAIN EQUIPMENT CENTER AT BS 395 RT UPPER POWER FEEDER IS BURNED. REMOVED AND REPLACED POWER FEEDER WIRE W3412-0003-210 A (N14106)
- [SDR DALA2025091506775](https://openairdocs.org/sdr/DALA2025091506775), Aug 31, 2025: Airbus BD5001A11. WIRE HARNESS. SHORTED. AFTER LEFT ENGINE START, ELECTRICAL FAULT LT FBW PC PMG INOPERATIVE. T/S IAW EFIM, FAULT CODE 2401F3249, RELAY PREVIOUSL (N305DU)
- [SDR 2025F00234](https://openairdocs.org/sdr/2025F00234), Aug 30, 2025: Urocop EC155B. WIRE HARNESS. BURNED. AIRCRAFT LANDED NORMALLY ON THE ROOFTOP HELIPAD AT 7XA7 WITH NO ABNORMAL INDICATIONS ON CAD OR VEMD IN FLIGHT OR UPON LA (N100GN)
- [SDR NACA20250823001](https://openairdocs.org/sdr/NACA20250823001), Aug 23, 2025: Boeing 7673BG. STRIP. MISSING. #1 ENGINE IDG CABLE HARNESS HAS A MISSING FANNING STRIP AT TERMINAL ENDS. INSTALLED FANNING STRIP ON #1 ENGINE IDG CABLE (N563NC)
- [SDR 2025FA0000560](https://openairdocs.org/sdr/2025FA0000560), Aug 20, 2025: Beech B200GT. WIRE HARNESS. IMPROPER STOW. MAINTENANCE HAS REPORTED OBSERVATIONS OF WIRING INSTALLATION DEFICIENCIES ON NEWLY RECEIVED ZERO-TIME AIRCRAFT (4 OF 18 

All 2,202: https://openairdocs.org/jasc/2497/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 (4,273 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 2435](https://openairdocs.org/jasc/2435): Starter-Generator (2,052 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)

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