# JASC 2440: External Power System

- Type: JASC system/component code (FAA)
- ATA chapter: 24 Electrical Power
- Title in the code table: EXTERNAL POWER SYSTEM
- Service difficulty reports: 169
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=21
- Page: https://openairdocs.org/jasc/2440

## What it covers

The electrical system within the aircraft which is used to connect external power to the aircraft's electrical system. Does not include the external power supply units. Typical parts are receptacle, switch, indicator lamp, etc.

## Service difficulty reports (169, newest 50)

- [SDR DALA2026012000426](https://openairdocs.org/sdr/DALA2026012000426), Jan 16, 2026: Boeing 757351. RECEPTACLE. FAULTED. AUDIBLE POP AND SPARKS WHEN GROUND POWER CONNECTED. BURNING ODOR SMELLED IN FLIGHT DECK. GROUND POWER PROMPTLY REMOVED.  (N583NW)
- [SDR DALA2024051005090](https://openairdocs.org/sdr/DALA2024051005090), May 9, 2024: Airbus A321271NX. POWER PORT. FIRE. AIRCRAFT 5004, AFTER ARRIVAL AT GATE WITH JETWAY ATTACHED. EXTERNAL CORD HOOKED UP TO PANEL, AND A FIRE STARTED AT CORD/ (N504DZ)
- [SDR YENA2023022100178](https://openairdocs.org/sdr/YENA2023022100178), Feb 19, 2023: Airbus A320232. NONE. NONE. FLT#813, HPN-FLL. 'FA REPORT A " BURNING RUBBER SMELL" CENTERED ON 2ABC OVER THE NEXT 10 MINUTES THE SMELL ABATED; PERFO (N583JB)
- [SDR MASA202207070181](https://openairdocs.org/sdr/MASA202207070181), Jul 7, 2022: Cndair CL6002D24. NONE. NONE. A/C WILL NOT ACCEPT GROUND POWER / SMOKE VISIBLE. PERFORMED OPS CHECK, NO SMOKE/FUMES NOTED. OPS CHECK NORMAL. (N952LR)
- [SDR DXTA2022062364490](https://openairdocs.org/sdr/DXTA2022062364490), Jun 22, 2022: Emb EMB505. RECEPTACLE. DAMAGED. EXTERNAL POWER: WHEN ATTEMPTING TO CONNECT THE GPU THE PLUG COULD NOT BE INSERTED ALL THE WAY. UPON FURTHER INSPECTION I (N419QS)
- [SDR AALA202206137420](https://openairdocs.org/sdr/AALA202206137420), Jun 11, 2022: Airbus A300*. CONTROL UNIT. DEFECTIVE. AIRCRAFT WAS GROUNDED: DURING BOARDING EXTERNAL POWER CAUGHT FIRE, AIRCRAFT HAD A HARD CHANGE OVER TO APU POWER, SUBTLE  (N122NN)
- [SDR QXEA2022052000202](https://openairdocs.org/sdr/QXEA2022052000202), May 19, 2022: Bombdr DHC8402. CONNECTOR. DAMAGED. INSPECTED AND FOUND THE DC EXTERNAL POWER RECEPTACLE DAMAGED. ONE PIN PUSHED THOUGH WITH SIGN OF ARCING. REMOVED FROM SE (N448QX)
- [SDR FDEA202203190599](https://openairdocs.org/sdr/FDEA202203190599), Mar 19, 2022: Doug MD11F. NONE. NONE. PDIS 595 24-40 5629 19MAR22 ANC FACT U ON SHUTDOWN, WHILE TRANSFERRING TO EXTERNAL POWER, DEU 3,4,AND 5 WENT BLANK, MCDU (N595FE)
- [SDR DALA2022031401669](https://openairdocs.org/sdr/DALA2022031401669), Mar 8, 2022: Boeing 757351. NONE. NONE. SHIP 5815 AIRCRAFT WOULD NOT TAKE EXTERNAL POWER. CORRECTIVE ACTION: FOUND EXT PWR RECEPTACLE BURNED AFTER CREW REPORTED (N595NW)
- [SDR DXTA2022030357840](https://openairdocs.org/sdr/DXTA2022030357840), Mar 3, 2022: Emb EMB505. NONE. DAMAGED. EXTERNAL POWER: APPROX. 5 MIN AFTER AIRCRAFT WAS CONNECTED TO/POWERED BY GPU, SMOKE WAS NOTED IN CABIN, BAGGAGE COMPARTM (N379QS)
- [SDR DXTA202202265756](https://openairdocs.org/sdr/DXTA202202265756), Feb 28, 2022: Emb EMB505. CABLE. DEFECTIVE. WHILE PERFORMING EO WC E50-24-0002_2-JIC (EMBRAER PHENOM EXTERNAL POWER RECEPTACLE HARDWARE INSPECTION, TECH REPORTED TH (N337QS)
- [SDR DXTA2022022657560](https://openairdocs.org/sdr/DXTA2022022657560), Feb 26, 2022: Emb EMB505. NOT REPORTED. NOT REPORTED. WHILE PERFORMING EO WC E50-24-0002_2-JIC (EMBRAER PHENOM EXTERNAL POWER RECEPTACLE HARDWARE INSPECTION, TECH REPORTED TH (N337QS)
- [SDR SIMA202202076002](https://openairdocs.org/sdr/SIMA202202076002), Feb 6, 2022: Emb ERJ170200LR. GPU. ODOR. EXT. GPU BURNING SMELL-C/A-PERFORMED GVI OF INTERNAL AND EXTERNAL GPU CONNECTION IAW SRM 51-10-02. SEE ITEM 2 FOR FURTHE (N242NN)
- [SDR AALA202201284951](https://openairdocs.org/sdr/AALA202201284951), Jan 25, 2022: Boeing 777223. RECEPTACLE. BURNED. AIRCRAFT IN BASE MAINTENANCE: PRIMARY EXTERNAL POWER RECEPTACLE PIN "B" IS LOOSE AND BASE INSULATION IS BURNT. REPLACED  (N798AN)
- [SDR DALA2022012100434](https://openairdocs.org/sdr/DALA2022012100434), Jan 20, 2022: Boeing 757351. NONE. NONE. SHIP 5812 ACS REPORTED ELEC ARC AT EXT POWER PLUG. CORRECTIVE ACTION: R/R EXTERNAL POWER RECEPTACLE PER B757 AMM 24-41.  (N592NW)
- [SDR 2021FA0000154](https://openairdocs.org/sdr/2021FA0000154), May 19, 2021: Emb EMB505. RECEPTACLE. BURNED. GROUND POWER UNIT (GPU) POWERED ON GROUND AND GPU EXTERNAL POWER RECEPTACLE STARTED BURNING AT CONNECTION ON AIRCRAFT AN (N314QS)
- [SDR SWAA2021040160647](https://openairdocs.org/sdr/SWAA2021040160647), Mar 28, 2021: Boeing 7377H4. CONTROL UNIT. FAULTED. ON TAKEOFF REJECTED TO @ 92 KNTS DUE TO VERY STRONG INTENSITY BURNING ELECTRICAL SMELL. F/A'S SAID THEY SMELLED IT FROM  (N473WN)
- [SDR 9JLA2021020430507](https://openairdocs.org/sdr/9JLA2021020430507), Jan 29, 2021: Raythn HAWKER800XP. RELAY. DEFECTIVE. DURING MAINTENANCE GROUND CHECKS THE MAINTENANCE TEAM DISCOVERED THAT THE ELECTRICAL EXTERNAL GROUND POWER WOULD NOT ENE (N980J)
- [SDR F3LA2020090800034](https://openairdocs.org/sdr/F3LA2020090800034), Sep 5, 2020: Airbus A320251N. RELAY. FAILED. 09/06/2020-CORRECTIVE ACTION: REMOVED AND REPLACED RELAY FIN#3PH, IAW TSM 24-24-00-810-806-A. OPS CHECK GOOD, AIRCRAFT O (N337FR)
- [SDR FDEA2020071311485](https://openairdocs.org/sdr/FDEA2020071311485), Jul 11, 2020: Boeing 75723A. UNKNOWN. MALFUNCTIONED. DURING POWER TRANSFER ON SHUTDOWN, ALL SCREENS WENT BLANK AND LEFT ENGINE POWER WAS INCREASING WITH THE THRUST LEVER AT  (N938FD)
- [SDR AALA202005209004](https://openairdocs.org/sdr/AALA202005209004), May 18, 2020: Airbus A319115. RECEPTACLE. MALFUNCTIONED. AIRCRAFT WAS GROUNDED. RAMP EMPLOYEE NOTIFIED PILOTS THAT EXTERNAL POWER CORD WAS HOT TO THE TOUCH AND SMOKING. BURN IND (N3014R)
- [SDR AALA202002109048](https://openairdocs.org/sdr/AALA202002109048), Feb 6, 2020: Boeing 737823. RECEPTACLE. FAULTY. AIRCRAFT WAS GROUNDED: FA REPORTS OUTSIDE MAIN DOOR AIRCRAFT SKIN GIVING ELECTRIC SHOCKS. REPLACED EXTERNAL PWR RECEPTAC (N929AN)
- [SDR QXEA2020012180033](https://openairdocs.org/sdr/QXEA2020012180033), Jan 18, 2020: Emb ERJ170200LR. RECEPTACLE. FIRE. FIRE AT GROUND POWER RECEPTACLE. FERRIED FOR REPAIRS. (N651QX)
- [SDR AALA2020013190006](https://openairdocs.org/sdr/AALA2020013190006), Dec 30, 2019: Emb ERJ190100IGW. RECEPTACLE. FIRE. AIRCRAFT WAS GROUNDED: GPU PLUG REPORTED BY RAMP TO HAVE A FIRE WHEN PLUGGED INTO AIRCRAFT. MAINTENANCE REMOVED AND REPL (N950UW)
- [SDR ASAA2019091830731](https://openairdocs.org/sdr/ASAA2019091830731), Sep 18, 2019: Boeing 737890. CONTROL UNIT. FAILED. DURING VISUAL APPROACH - F.O PFD HAD NO COMMAND BARS - RECYCLED FLIGHT DIRECTOR SWITCHES. STILL NO COMMAND BARS - RA. FL (N529AS)
- [SDR FDEA201908302044](https://openairdocs.org/sdr/FDEA201908302044), Aug 30, 2019: Doug MD11F. RECEPTACLE. FIRE. FIRE AT EXTERNAL POWER CONNECTION BURNED AND MELTED AIRCRAFT EXTERNAL POWER RECEPTACLE AND COMPONENTS. INSTALLED EXTERNA (N615FE)
- [SDR DALA2019111086523](https://openairdocs.org/sdr/DALA2019111086523), Aug 23, 2019: Boeing 767432ER. DOOR. DAMAGED. DURING GROUND TIME ELECTRICAL SPARK FROM EXTERNAL POWER. INSTALLED NEW EXTERNAL POWER DOOR. (LP 6150084) (N834MH)
- [SDR FDEA201908201962](https://openairdocs.org/sdr/FDEA201908201962), Aug 20, 2019: Doug MD1010F. CONTROL UNIT. FAILED. ON ROLLOUT AIRCRAFT WENT DARK INSIDE AND OUTSIDE MOMENTARILY. THEN CAME BACK ON AND OFF TWICE THEN ALL STAYED ON. REMOVE (N560FE)
- [SDR UIEA2019061414467](https://openairdocs.org/sdr/UIEA2019061414467), Jun 11, 2019: Boeing 76736N. FAULT CODE. FALSE ACTIVATION. UNABLE TO TRANSFER ELECTRICAL POWER FROM EXTERNAL TO APU GENERATOR. BITE CHECK BPCU. CLEARED FAULT. OPS CHECK GOOD AT TH (N1049A)
- [SDR AALA201905099001](https://openairdocs.org/sdr/AALA201905099001), May 8, 2019: Airbus A330243. RECEPTACLE. SPARKS. AIRCRAFT WAS GROUNDED: MAINTENANCE REPORTS AFTER HOOKING UP EXTERNAL POWER TO RECEPTACLE A & B, RECEPTACLE A BEGAN SPARK (N282AY)
- [SDR AALA201904169001](https://openairdocs.org/sdr/AALA201904169001), Apr 15, 2019: Airbus A321231. CONTROL UNIT. BURNED OUT. AIRCRAFT WAS GROUNDED: PILOT REPORTS STRONG SMELL OF ELECTRICAL BURNING IN COCKPIT. MAINTENANCE TROUBLESHOT IAW CARD 26L (N916US)
- [SDR UIEA2019040303763](https://openairdocs.org/sdr/UIEA2019040303763), Mar 31, 2019: Boeing 7673Y0. CONTROL UNIT. MALFUNCTIONED. EXTERNAL POWER SYSTEM INOP(<P>TRANSFERRED TO MDDR 109540.&NBSP;</P><P>LP 1018457 - M6:&NBSP;R&AMP;R EXT POWER RECEPTACLE (N1619A)
- [SDR UIEA2019021203206](https://openairdocs.org/sdr/UIEA2019021203206), Feb 13, 2019: Boeing 76731K. FUSE. OPEN. A/C WILL NOT TAKE EXTERNAL POWER. FOLLOWED FIM 24-41-804 TO STEP 6 FOUND FUSE B130D OPEN. REMOVED AND REPLACED FUSE IAW  (N1373A)
- [SDR UIEA2019011802976](https://openairdocs.org/sdr/UIEA2019011802976), Jan 6, 2019: Boeing 76736N. CONTROL PANEL. FAULTY. LT BUS TIE ISLN LIGHT INOP.(<P>R&AMP;R AC EXTERNAL POWER&NBSP;PANEL ASSY OPS CK GOOD IAW AMM 24-22-01. OPS CKD NML.<BR / (N1093A)
- [SDR UIEA2018120402781](https://openairdocs.org/sdr/UIEA2018120402781), Dec 3, 2018: Boeing 76731A. UNKNOWN. MALFUNCTIONED. GPU INTERMITTENTLY WOULD NOT CONNECT. REMOVED AND REPLACED AUX POWER BREAKER C905 AS PRECAUTIONARY PER 24-20-03. (N662GT)
- [SDR UIEA2018120202754](https://openairdocs.org/sdr/UIEA2018120202754), Dec 2, 2018: Boeing 76737D. UNKNOWN. MALFUNCTIONED. AIRCRAFT DISCONNECTED/DROPPED GROUND POWER 03 TIMES BEFORE ACCEPTING IT AND HOLDING POWER. PERFORMED BPCU BITE PROCEDURE (N1327A)
- [SDR DXTA2018093001482](https://openairdocs.org/sdr/DXTA2018093001482), Sep 30, 2018: Emb EMB505. NOT REPORTED. MALFUNCTIONED. WITH THE AIRCRAFT POWERED WITH A GPU, WE RECEIVED AN OVERVOLTAGE OF 30V AND THE GPU AUTOMATICALLY DISCONNECTED. AT THE S (N374QS)
- [SDR UIEA2018092402045](https://openairdocs.org/sdr/UIEA2018092402045), Sep 23, 2018: Boeing 767328. CONTROL PANEL. INOPERATIVE. EXT PWP FOUND TO BE INOP. R&R P5 ELEC PANEL IAW AMM 24-22-01. OPS CHECK GOOD. NO DEFECTS NOTED AT THIS TIME. THIS INSTAL (N1499A)
- [SDR ASAA2018091026057](https://openairdocs.org/sdr/ASAA2018091026057), Sep 7, 2018: Boeing 737890. PANEL. ARCED. GROUND SERVICE REPORTED ARCING AT GROUND EXTERNAL POWER PANEL. CREW REPORTS T/R UNIT 1 LIGHT ILLUMINATED. GROUNDED - YES (N537AS)
- [SDR UIEA2018040700625](https://openairdocs.org/sdr/UIEA2018040700625), Apr 6, 2018: Boeing 767306. BPCU. FAILED. RIGHT AC BUSS FAIL INDICATED , RECYCLING RT GENERATOR RESTORED POWER TO RIGHT AC BUSS , RESSETING RT BUSS ISOLATION SWIT (N1409A)
- [SDR AALA201803059011](https://openairdocs.org/sdr/AALA201803059011), Mar 2, 2018: Airbus A321211. CONTROL UNIT. FAILED. MAINTENANCE FOUND THE CIRCUIT BREAKER FOR THE GROUND POWER CONTROL UNIT TRIPPED WITH A BURNED ODOR IN THE E/E COMPARTMEN (N150UW)
- [SDR ASMF201708006](https://openairdocs.org/sdr/ASMF201708006), Aug 19, 2017: Boeing 7878. RECTIFIER. MALFUNCTIONED. AIRCRAFT RETURNED TO PLATFORM DUE TO DURING ENGINES START, THE MESSAGES IN EICAS AND STATUS WERE SHOWN OF CABIN AIR CPRS (N964AM)
- [SDR SIMA20160710003](https://openairdocs.org/sdr/SIMA20160710003), Jul 10, 2016: Emb EMB145LR. CONTROL MODULE. FAILED. ARRIVAL, ACFT NO POWER SELECTED, BUT GPU AVAILABLE LIGHT, NOT SELECTED) FO TURNED BATTS ON MFD SHOWED GPU VOLTAGE AT 37. (N638AE)
- [SDR AALA201602159017](https://openairdocs.org/sdr/AALA201602159017), Feb 14, 2016: Airbus A320232. RECEPTACLE. ARCED. AIRCRAFT WAS NOT GNDED. RAMP REPORTS EXTERNAL POWER RECEPTACLE DAMAGED WITH SIGNS OF ARCING. REPLACED EXTERNAL POWER REC (N657AW)
- [SDR CA160205002](https://openairdocs.org/sdr/CA160205002), Feb 2, 2016: Cessna 560CESSNA. GROUND STUD. CORRODED. (CAN) DURING A POST FLIGHT INSPECTION OF THE ACFT IT WAS OBSERVED THAT THE SIDE OF THE FUSELAGE, ADJACENT THE EXTERNAL P
- [SDR AALA201601289004](https://openairdocs.org/sdr/AALA201601289004), Jan 26, 2016: Emb ERJ190100IGW. RECEPTACLE. DEFECTIVE. AIRCRAFT WAS GNDED. FIRE REPORTED BY GND PERSONNEL AT GPU RECEPTACLE. REPLACED EXTERNAL AC POWER RECEPTACLE & EXTERNAL P (N961UW)
- [SDR AALA201601279001](https://openairdocs.org/sdr/AALA201601279001), Jan 26, 2016: Emb ERJ190100IGW. MODULE. DEFECTIVE. AIRCRAFT WAS GNDED. FIRE REPORTED BY GND PERSONNEL AT GPU RECEPTACLE. REPLACED EXTERNAL AC POWER RECEPTACLE & EXTERNAL P (N961UW)
- [SDR DALA2015101506212](https://openairdocs.org/sdr/DALA2015101506212), Oct 14, 2015: Boeing 757232. RECEPTACLE. FAILED. EXTERNAL POWER RECEPTACLE FAILS, CHECK OUT. REPLACED RECEPTACLE IAW AMM 24-41-02. (N6711M)
- [SDR HNAA2015092100283](https://openairdocs.org/sdr/HNAA2015092100283), Sep 21, 2015: Dhav DHC8311. INVERTER. ODOR. SLIGHT FISHY ODOR IN FLIGHT DECK. SECONDARY INVERTER 117 VOLTS WITH .41 LOAD. INSPECTED, NO USUAL ODOR NOTED. MEL'D SECO (N330EN)
- [SDR ASMF201503027](https://openairdocs.org/sdr/ASMF201503027), Mar 19, 2015: Boeing 7878. BPCU. FAILED. AIRCRAFT PERFORMED AN UNSCHEDULED LANDING DUE TO SEVERAL MSGS IN EICAS & STATUS. DETECTED FAIL & REPLACED THE LT BPCU IA (N964AM)

All 169: https://openairdocs.org/jasc/2440/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 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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