# JASC 2400: Electrical Power System

- Type: JASC system/component code (FAA)
- ATA chapter: 24 Electrical Power
- Title in the code table: ELECTRICAL POWER SYSTEM
- Service difficulty reports: 1,186
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=19
- Page: https://openairdocs.org/jasc/2400

## What it covers

The electrical units and components that generate, control, and supply AC/DC electrical power for other systems through the secondary busses. For reports on electric power generating system parts and circuitry other than major components reported with insufficient information to file in a specific JASC 2400 series code. Typical parts are circuit breaker, relay, connector, resistor, wire bundles, switches, etc.

## Service difficulty reports (1,186, newest 50)

- [SDR 2026FA0000816](https://openairdocs.org/sdr/2026FA0000816), Oct 6, 2026: Emb EMB505. RECEPTACLE. MELTED. GPU PLUG CAUGHT ON FIRE WHILE PLUGGED INTO THE AIRCRAFT. GPU WAS SHUT DOWN AND CABIN PORTABLE FIRE EXTINGUISHER WAS USED (N337AS)
- [SDR 2026FA0000812](https://openairdocs.org/sdr/2026FA0000812), Sep 29, 2026: Diamon DA62. ELECTRICAL SYS. FAULTED. DURING A MANEUVERS TRAINING FLIGHT UNDER PART 91 WE EXPERIENCED A LOW ACUITY ELECTRICAL EMERGENCY. WHILE PREPARING FOR T (N33KF)
- [SDR DXTA2026092909891](https://openairdocs.org/sdr/DXTA2026092909891), Sep 25, 2026: Emb EMB545. USB PORT. DEFECTIVE. DURING DESCENT, THE LEFT-SEAT PILOT DETECTED AN ELECTRICAL BURNING ODOR ORIGINATING NEAR THE LEFT-SIDE USB CHARGING PORT (N284QS)
- [SDR QMLA2026092120071](https://openairdocs.org/sdr/QMLA2026092120071), Sep 19, 2026: Urocop EC135P2. OUTLET. ODOR. UPON APPROACH AND LANDING BACK TO BASE, CREWMEMBER IN REAR OF AIRCRAFT NOTICED A BURNING ODOR COMING FROM THE ELECTRICAL (N138LN)
- [SDR BAGA2026091600003](https://openairdocs.org/sdr/BAGA2026091600003), Sep 15, 2026: Airbus BD5001A11. BPCU. FAULTED. 24 ELECTRICAL FAULT BPCU INOP, 24 ELEC FAULT CDC 1 MICRO MODULE 1 INOP, 27 SLAT FAULT DATA CONFIG INPUT REDUND LOSS, 27  (N225BZ)
- [SDR CALA2026083119029](https://openairdocs.org/sdr/CALA2026083119029), Aug 29, 2026: Boeing 777300ER. POWER UNIT. FAULTED. BURNING ODOR FROM OUTLET AT SEAT 22F PAX AT 22F HAD A CHARGER PLUGGED INTO OUTLET. THE DEVICE GOT VERY HOT AND CABLE BUR (N2250U)
- [SDR DALA2026082404797](https://openairdocs.org/sdr/DALA2026082404797), Aug 23, 2026: Boeing 717200. PCDU. FAULTED. MISC/DE- DECLARED AN EMERGENCY DUE TO RIGHT DC BUSS OFF MESSAGE WITH NUMEROUS FAULTS. REPLACED RT PCDU IAW AMM 24-21. OP (N920AT)
- [SDR 2026FA0000676](https://openairdocs.org/sdr/2026FA0000676), Aug 20, 2026: Beech A200C. MOTOR. BURNED OUT. CAPTAIN WAS PILOT FLYING. N301PT DEPARTED ANC FOR IGG. WHILE IN THE CLIMB AT ABOUT 7,000FT, SMOKE COULD BE SMELLED INSID (N301PT)
- [SDR VNAA2026081722701](https://openairdocs.org/sdr/VNAA2026081722701), Aug 15, 2026: Cndair CL6002D24. CIRCUIT BREAKER. TRIPPED. DC EMERGENCY BUS CAUTION IN FLIGHT, FOUND CB R11 ON CBP-1 OPEN ON ARRIVAL. CLOSED CB AND FAULT EXTINGUISHED. PERFORMED O (N636NN)
- [SDR CALA2026081718687](https://openairdocs.org/sdr/CALA2026081718687), Aug 14, 2026: Boeing 7879. BPSU. FAULTED. ON FLIGHT 901, SFO-LHR, CABIN CREW WERE BEING CAUTIOUS DUE TO RECENT EVENT ON DEPARTURE. ODOR WAS FOOD RELATED, & WENT A (N71108)
- [SDR CALA2026081418626](https://openairdocs.org/sdr/CALA2026081418626), Aug 11, 2026: Boeing 767322. BUSS. TRIPPED. GALLEY POWER WAS NOT RESTORED AFTER LOAD SHED AFTER DEPARTING LHR TURNED OFF ALL GALEY USERS INCLUDING IFE SYSTEM. PROCE (N661UA)
- [SDR DALA2026080604551](https://openairdocs.org/sdr/DALA2026080604551), Aug 5, 2026: Boeing 717200. ELECTRICAL SYS. FAULTED. ATO- APPROX 60KTS DUE TO ELECTRICAL FAULT AND STICK PUSHER FAIL ANNUNCIATION. PERFORMED ENGINE RUN WITH BOTH ENGINES AT  (N998AT)
- [SDR CALA2026072918086](https://openairdocs.org/sdr/CALA2026072918086), Jul 28, 2026: Boeing 78710. CIRCUIT BREAKER. TRIPPED. C/B CE3351430 TRIPPED EMERGENCY LIGHTS MTC MSG 42-02164 ACTIVE. FIM DMC-B787-A-42-20-F5-G4A-421A-A. RESET CB. PER FIM AC (N12021)
- [SDR SWIA2026071176617](https://openairdocs.org/sdr/SWIA2026071176617), Jul 11, 2026: Cndair CL6002C10. GCU. FAILED. AFTER RECEIVING GEN 1 OFF, RECEIVED A FWD SMOKE CARGO. SMOKE WARNING WENT AWAY AFTER ABOUT 2 MINS. CHKD W FLT ATTS & NO  (N606SK)
- [SDR YENA2026063000503](https://openairdocs.org/sdr/YENA2026063000503), Jun 27, 2026: Airbus BD5001A11. ELECTRICAL SYS. FAULTED. FLT 993, BOS-DEN, DIVERTED TO PIT. MULTIPLE ELECTRICAL FAILURES AT FL340 GENERATING MULTIPLE CAUTION AND ADVISORY MESSAG (N3284J)
- [SDR CALA2026062217247](https://openairdocs.org/sdr/CALA2026062217247), Jun 20, 2026: Airbus A320232. BUTTON. FAULTED. FAULT ON CLIMB OUT . REPLACED BCL 2, OPS CHECKED GOOD. ELEC BCL 2 FAULT CHECKED PFR, FOUND MESSAGE SDAC1: NO DATA FROM B (N466UA)
- [SDR EE4Y2026061224637](https://openairdocs.org/sdr/EE4Y2026061224637), Jun 12, 2026: Emb ERJ190100IGW. ELECTRICAL BOX. FIRE. COOPESA REPORTS THAT A FIRE OUTBREAK OCCURRED INSIDE THE FORWARD FUSELAGE, SPECIFICALLY WITHIN THE FORWARD CARGO COMPART (N309JB)
- [SDR EE4Y2026061124630](https://openairdocs.org/sdr/EE4Y2026061124630), Jun 11, 2026: Emb ERJ190100IGW. ELECTRICAL BOX. FIRE. COOPESA REPORTS THAT A FIRE OUTBREAK OCCURRED INSIDE THE FORWARD FUSELAGE, SPECIFICALLY WITHIN THE FORWARD CARGO COMPART (N309JB)
- [SDR CALA2026050716048](https://openairdocs.org/sdr/CALA2026050716048), May 4, 2026: Boeing 777222. RELAY. FAULTY. GROUND HORN ALARM KEEPS GOING OFF WITH A/C POWER OFF AND GROUND POWER DISCONNECTED REFERENCE WDM 24-33-21-1, REMOVED REL (N206UA)
- [SDR UIEA2026042700249](https://openairdocs.org/sdr/UIEA2026042700249), Apr 27, 2026: Boeing 747409F. MOTOR. FAILED. TRONG FUMES IN FLIGHT DECK. APPLIED FIM 21-00-10 T/S, FOUND M/D PDU 6 RT ELECTRICAL MOTOR STUCK INOP. PDU 6 RH DEACTIVAT (N439GT)
- [SDR DXTA2026040707536](https://openairdocs.org/sdr/DXTA2026040707536), Apr 4, 2026: Emb EMB505. LRU. DEFECTIVE. AT FL430 WITH ENGINE HEAT OFF WE GOT A-I E1 FAIL FOLLOWED BY GEA 2 FAIL AND MULTIPLE YELLOW XS ON SEVERAL ENGINE AND ELE (N410QS)
- [SDR AALA202603318454](https://openairdocs.org/sdr/AALA202603318454), 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 AALA202603315039](https://openairdocs.org/sdr/AALA202603315039), 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 AALA202603316791](https://openairdocs.org/sdr/AALA202603316791), 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 EVCA03312026](https://openairdocs.org/sdr/EVCA03312026), Mar 25, 2026: Bell 206L1. BATTERY. UNSERVICEABLE. ELECTRICAL FAILURE, COMMS, NAV, AUTO PILOT. (N176AE)
- [SDR IPXA2026031245038](https://openairdocs.org/sdr/IPXA2026031245038), Mar 12, 2026: Airbus A300F4622R. TRANS RECTIFIER. FAILED. DURING APU T/S WITH APU MASTER SWITCH SELECTED ON AND APU START SWICH SELECTED ON, AVIONICS COMPT FILLED WITH SMOKE AND  (N172UP)
- [SDR AALA202603073618](https://openairdocs.org/sdr/AALA202603073618), Mar 6, 2026: Airbus A320232. POWER SUPPLY. BURNED. AIRCRAFT WAS GROUNDED: FA REPORTS A BURNT ELECTRICAL SMELL IN THE FORWARD CABIN. MAINTENANCE FOUND SOURCE TO BE ISPS AT  (N673AW)
- [SDR CALA2026030614382](https://openairdocs.org/sdr/CALA2026030614382), Mar 5, 2026: Boeing 777224. USB PORT. SMOKE. PAX AT SEAT 31C, PLUGGED A PED INTO THE USB PORT ON MONITOR AND IT SMOKED. PERFORMED CONDITIONAL INSPECTION SMOKE/ODOR I (N78013)
- [SDR MASA2026030100008](https://openairdocs.org/sdr/MASA2026030100008), Mar 1, 2026: Emb ERJ170200LL. ELECTRICAL SYS. FAULTED. ELECTRICAL ISSUES REQUIRING APU SHUT DOWN CURRENTLY OOS AWAITING PARTS (N87339)
- [SDR QXEA2026022300036](https://openairdocs.org/sdr/QXEA2026022300036), Feb 17, 2026: Emb ERJ170200LR. I/O CARD. MALFUNCTIONED. FLIGHT 2141. AMS CTRL FAULT DISPLAYED AFTER LANDING. MILD INTERMITTAND SWEET ODOR FROM THE AIR VENTS. REMOVED FROM SERVI (N637QX)
- [SDR ASAA2026021763444](https://openairdocs.org/sdr/ASAA2026021763444), Feb 17, 2026: Boeing 717200. CHARGER. FAULTED. EMERGENCY PWR FAIL. GROUNDED - YES. PER FIM 24-24 TASK 803 RESET BATT CHARGER. MESSAGE CLEARED. OK FOR SVC. (N478HA)
- [SDR AALA202602167944](https://openairdocs.org/sdr/AALA202602167944), Feb 13, 2026: Airbus A321231. ELECTRICAL SYS. LOST. AIRCRAFT WAS GROUNDED: DURING TAXI TURNING TO THE RIGHT, #1 ENGINE RUNNING, APU OFF, #2 ENGINE OFF, HAD A COMPLETE LOSS  (N920US)
- [SDR AALA202602048661](https://openairdocs.org/sdr/AALA202602048661), Feb 2, 2026: Boeing 737823. ELECTRICAL SYS. MALFUNCTIONED. AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTS ILLUMINATED FOR OVER 15 MINS DURING ELECTRICAL ISSUE. (OPEN). (N802NN)
- [SDR QMLA2026013120008](https://openairdocs.org/sdr/QMLA2026013120008), Jan 29, 2026: Bell 407. PMA. FAULTED. PRECAUTIONARY LANDING MADE DUE TO GRINDING NOISE & VIBRATION IN COCKPIT. PMA FOUND TO BE FAULTY. REPLACED THE PMA. (N407AM)
- [SDR CALA2026012313178](https://openairdocs.org/sdr/CALA2026012313178), Jan 20, 2026: Boeing 737924ER. OUTLET. ODOR. PRINTER AND CABIN POWER OUTLETS FAILED, ELECTRICAL SMELL AS WELL IFE/PASS SWITCHED OFF INSPECTED AND FOUND NO SIGN OFF E (N38446)
- [SDR QXEA2025122900376](https://openairdocs.org/sdr/QXEA2025122900376), Dec 28, 2025: Emb ERJ170200LR. CIRCUIT BREAKER. TRIPPED. FOUND EMERGENCY FWD BATTERY HEATER C/B TRIPPED. REMOVED FROM SERVICE. RESET C/B IAW GMM 9.2.2.1, PERFORMED OPS CHECK OF  (N656QX)
- [SDR ABXA20251213338](https://openairdocs.org/sdr/ABXA20251213338), Dec 13, 2025: Boeing 767231. CIRCUIT BREAKER. NO DISCREPANCY. A/C TAXIED OUT WITH OPEN L/B WRITE UP. MAINTENCE PREVIOUSLY PULLED CVR C/B P11/H34 TO FOM. AIRCRAFT RETURNED TO BLOCKS ( (N651GT)
- [SDR HNAA2025120400851](https://openairdocs.org/sdr/HNAA2025120400851), Dec 3, 2025: Emb EMB145LR. AHRS. FAULTED. ON DESCENT, INTERMITTENT ELECT BURNING ODOR BY FA JUMPSEAT. ELECT ODOR AT GATE WITH A/C IN EMERG POWER MODE AFTER ENG SH (N695AE)
- [SDR CALA2025112611495](https://openairdocs.org/sdr/CALA2025112611495), Nov 23, 2025: Boeing 7878. TRU. FAULTED. SMELL OF SMOKE IN FWD CABIN AND DOOR 3R FLAGGING SDR. DETECTED SMOKE ODOR IN THE AFT E/E EXHAUST. INSPECTED AFT E&E AND  (N20904)
- [SDR ENHA20251103001](https://openairdocs.org/sdr/ENHA20251103001), Nov 1, 2025: Cessna 208B. ELECTRICAL SYS. MALFUNCTIONED. PILOT NOTE DISCREPANCY AS AN ELECTRICAL POWER LOSS/MULTIPLE BUS BREAKERS POP/PFD LOSS. MAINTENANCE INSPECTED ELECTRICAL  (N407GV)
- [SDR AJXA202510200038](https://openairdocs.org/sdr/AJXA202510200038), Oct 20, 2025: Cessna 750. ELECTRICAL SYS. FAULTED. PILOT REPORTED A PARTIAL ELECTRICAL FAILURE IN COCKPIT. POWER WAS LOST ON THE COPILOTS MFD AND PFD. (N225GT)
- [SDR AALA202509238758](https://openairdocs.org/sdr/AALA202509238758), Sep 21, 2025: Airbus A321253NX. CONTACTOR. FAILED. AIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED AN ELECTRICAL SMELL DURING CLIMB INITIALLY BUT THEN DISSIPATED AND DID NOT R (N403AN)
- [SDR AALA202509163830](https://openairdocs.org/sdr/AALA202509163830), Sep 14, 2025: Airbus A321231. OUTLET. MELTED. AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORTED ELECTRICAL SMELL, BURNING SMELL IN THE LAST THREE ROWS OF THE AIRCRAFT (N915US)
- [SDR REXA2025092500885](https://openairdocs.org/sdr/REXA2025092500885), Aug 31, 2025: Cndair CL6002D24. RECEPTACLE. CRACKED. CRACKED ON BOX OF THE EXTERNAL POWER RECEPTACLE AT THE FWD FUSELAGE BOX OF THE EXTERNAL POWER RECEPTACLE AT THE FWD FUSE (N914XJ)
- [SDR SIMA2025090283002](https://openairdocs.org/sdr/SIMA2025090283002), Aug 30, 2025: Emb ERJ170200LR. GCU. FAILED. IDG 1 OFF BUS CAME ON EICAS AND APU FAULT AFTER DEPARTURE AROUND 3000 FT. A/I BACK TO DFW / EMERGENCY DECLARED / NOT AN  (N331SC)
- [SDR CALA2025090208373](https://openairdocs.org/sdr/CALA2025090208373), Aug 30, 2025: Boeing 767322. CONTROL UNIT. FAULTED. DURING CLB AFT GALLY LST POWER. ALL OVENS OFFLINE . ALL BUT ONE CHLLR INOP . NO PWR. ALL BUT 1. AFT GALLEY POWER WORKS N (N661UA)
- [SDR UIEA2025082901148](https://openairdocs.org/sdr/UIEA2025082901148), Aug 28, 2025: Boeing 74745EF. RELAY. FAILED. LOST GEN 3 ON TAKEOFF, LOSS OF ALL INSTRUMENTS, FAILED ON CAPTAIN'S SIDE.(<P >BCU #1 AND GCU #3 REPLACED IAW AMM 24-23-0 (N486MC)
- [SDR EVCA20250820001](https://openairdocs.org/sdr/EVCA20250820001), Aug 18, 2025: Bell 206L4. INVERTER. ODOR. INTERMITTENT ELECTRICAL SMELL (N417AE)
- [SDR AALA202508206800](https://openairdocs.org/sdr/AALA202508206800), Aug 17, 2025: Boeing 7378. OUTLET. INOPERATIVE. AIRCRAFT WAS GROUNDED: AFT PUSHBACK FLIGHT ATTENDANTS AND PASSENGERS REPORT THE PLASTIC SMELL IS GETTING WORST IN THE CA (N316RK)
- [SDR AALA202508206697](https://openairdocs.org/sdr/AALA202508206697), Aug 17, 2025: Boeing 7378. OUTLET. INOPERATIVE. AIRCRAFT WAS GROUNDED: AFT PUSHBACK FLIGHT ATTENDANTS AND PASSENGERS REPORT THE PLASTIC SMELL IS GETTING WORST IN THE CA (N316RK)

All 1,186: https://openairdocs.org/jasc/2400/reports.md

## Airworthiness concern sheets (9)

- [AIR750-2021-01-S-2400-ACS](https://openairdocs.org/acs/AIR750-2021-01-S-2400-ACS): Fuse. Issued Oct 7, 2021
- [AIR760-2009-14-S-2400-ACS](https://openairdocs.org/acs/AIR760-2009-14-S-2400-ACS): Electric Power. Issued Oct 7, 2009
- [AIR760-2009-09-S-2400-ACS](https://openairdocs.org/acs/AIR760-2009-09-S-2400-ACS): Electric Power. Issued Aug 17, 2009
- [AIR750-2008-18-S-2400-ACS](https://openairdocs.org/acs/AIR750-2008-18-S-2400-ACS): 35-Amp and 250-Amp Current Limiters. Issued Sep 12, 2008
- [AIR760-2007-17-S-2400-ACS](https://openairdocs.org/acs/AIR760-2007-17-S-2400-ACS): Electrical Power Relay Circuit Protection Kit. Issued Oct 15, 2007
- [AIR750-2007-16-S-2400-ACS](https://openairdocs.org/acs/AIR750-2007-16-S-2400-ACS): Left-Hand (LH) and Right-Hand (RH) Inboard Wing Leading Edge/Battery Box Areas. Issued Sep 28, 2007
- [AIR760-2007-05-S-2400-ACS](https://openairdocs.org/acs/AIR760-2007-05-S-2400-ACS): Starter-Generator. Issued Mar 8, 2007
- [AIR760-2007-04-S-2400-ACS](https://openairdocs.org/acs/AIR760-2007-04-S-2400-ACS): Ground Power Electrical Cable, the Fuel Strainer Cable, and the Fuel Line. Issued Mar 7, 2007
- [AIR760-2004-01-S-2400-ACS](https://openairdocs.org/acs/AIR760-2004-01-S-2400-ACS): Circuit Breaker Toggle Switches. Issued Oct 1, 2004

## Other codes in chapter 24

- [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 (4,275 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 (1,121 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)
- [JASC 2497](https://openairdocs.org/jasc/2497): Electrical Power System Wiring (2,202 reports)

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