# JASC 2420: AC Generation System

- Type: JASC system/component code (FAA)
- ATA chapter: 24 Electrical Power
- Title in the code table: AC GENERATION SYSTEM
- Service difficulty reports: 1,302
- FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=20
- Page: https://openairdocs.org/jasc/2420

## What it covers

For reports of system parts other than the alternator, regulator, AC inverter or phase adapter generating an alternating current for aircraft which incorporate an alternating current electrical system. Used primarily with large, turbine engine powered aircraft. Does not include the using systems.

## Latest service difficulty reports

- [SDR COEA2026100802921](https://openairdocs.org/sdr/COEA2026100802921), Oct 7, 2026: VSI, FAILED (N921FX)
- [SDR 2026FA0000797](https://openairdocs.org/sdr/2026FA0000797), Sep 30, 2026: ATTACH BRACKET, CRACKED (N644CS)
- [SDR AALA202607146993](https://openairdocs.org/sdr/AALA202607146993), Jul 13, 2026: CONTROL PANEL, FAULTED (N835AN)
- [SDR CALA2026022414046](https://openairdocs.org/sdr/CALA2026022414046), Feb 23, 2026: IDG, FAULTED (N67134)
- [SDR DXTA2025093005135](https://openairdocs.org/sdr/DXTA2025093005135), Sep 28, 2025: RELAY, FAULTED (N234QS)
- [SDR DALA2025052103929](https://openairdocs.org/sdr/DALA2025052103929), May 20, 2025: TRU, FAILED (N690DL)
- [SDR CALA2025032103072](https://openairdocs.org/sdr/CALA2025032103072), Mar 19, 2025: IDG, LOW (N76010)
- [SDR DXTA2024082700323](https://openairdocs.org/sdr/DXTA2024082700323), Aug 24, 2024: UNKNOWN, NOISE (N771QS)
- [SDR FDEA202404300523](https://openairdocs.org/sdr/FDEA202404300523), Apr 30, 2024: GCU, FAILED (N522FE)
- [SDR AALA202403084994](https://openairdocs.org/sdr/AALA202403084994), Mar 6, 2024: TRANSFORMER, FAILED (N118US)
- [SDR EGYF20240218001](https://openairdocs.org/sdr/EGYF20240218001), Feb 18, 2024: IDG, WRONG PART
- [SDR ASAA2024020347677](https://openairdocs.org/sdr/ASAA2024020347677), Feb 3, 2024: PCU, FAULTY (N625AS)
- [SDR AALA202312247902](https://openairdocs.org/sdr/AALA202312247902), Dec 21, 2023: SEAL, LEAKING (N524UW)
- [SDR ASAA2023110245976](https://openairdocs.org/sdr/ASAA2023110245976), Nov 2, 2023: CONTACTOR, FAULTY (N924AK)
- [SDR ASAA2023102545841](https://openairdocs.org/sdr/ASAA2023102545841), Oct 25, 2023: UNKNOWN, UNKNOWN (N921AK)
- [SDR ASAA2023092445294](https://openairdocs.org/sdr/ASAA2023092445294), Sep 24, 2023: CONTACTOR, FAULTY (N948AK)
- [SDR AALA2023080407690](https://openairdocs.org/sdr/AALA2023080407690), Aug 1, 2023: UNKNOWN, FAILED (N830AN)
- [SDR SIMA20230716001](https://openairdocs.org/sdr/SIMA20230716001), Jul 16, 2023: UNKNOWN, UNKNOWN (N261NN)
- [SDR ASAA2023070543908](https://openairdocs.org/sdr/ASAA2023070543908), Jul 5, 2023: UNKNOWN, UNKNOWN (N514AS)
- [SDR DXTA2023062689410](https://openairdocs.org/sdr/DXTA2023062689410), Jun 26, 2023: UNKNOWN, UNKNOWN (N341QS)
- [SDR CALA2023062602037](https://openairdocs.org/sdr/CALA2023062602037), Jun 25, 2023: IDG, UNKNOWN (N792UA)
- [SDR ASAA2023062343692](https://openairdocs.org/sdr/ASAA2023062343692), Jun 23, 2023: MODULE, FAULTY (N948AK)
- [SDR ASAA2023041442902](https://openairdocs.org/sdr/ASAA2023041442902), Apr 14, 2023: PANEL, FAULTY (N956AK)
- [SDR VNAA202304181111](https://openairdocs.org/sdr/VNAA202304181111), Apr 14, 2023: GCU, UNKNOWN (N543EA)
- [SDR ASAA2023032842646](https://openairdocs.org/sdr/ASAA2023032842646), Mar 28, 2023: CONTACTOR, FAULTY (N589AS)
- [SDR CALA2023032700890](https://openairdocs.org/sdr/CALA2023032700890), Mar 27, 2023: IDG, UNKNOWN (N792UA)
- [SDR IPXA2023022091140](https://openairdocs.org/sdr/IPXA2023022091140), Feb 19, 2023: BUSS, NONE (N432UP)
- [SDR SWAA2023022005157](https://openairdocs.org/sdr/SWAA2023022005157), Feb 16, 2023: BUSS, FAULT MESSAGE (N426WN)
- [SDR SWAA2023022003800](https://openairdocs.org/sdr/SWAA2023022003800), Feb 16, 2023: GENERATOR, FAULT MESSAGE (N426WN)
- [SDR IPXA2023020290543](https://openairdocs.org/sdr/IPXA2023020290543), Feb 1, 2023: BUSS, INOPERATIVE (N432UP)
- [SDR ASAA2022121341168](https://openairdocs.org/sdr/ASAA2022121341168), Dec 13, 2022: MODULE, FAULTED (N428AS)
- [SDR ASAA2022120941085](https://openairdocs.org/sdr/ASAA2022120941085), Dec 9, 2022: GENERATOR, INOPERATIVE (N428AS)
- [SDR Z1RA76010232022](https://openairdocs.org/sdr/Z1RA76010232022), Oct 23, 2022: GENERATOR, WORN (N760AF)
- [SDR WX0A1900010074276](https://openairdocs.org/sdr/WX0A1900010074276), Oct 7, 2022: NONE, NONE (N224NV)
- [SDR NACA2022091300001](https://openairdocs.org/sdr/NACA2022091300001), Sep 13, 2022: CONTROL UNIT, INTERMITTENT (N379CX)
- [SDR 2022FA0000494](https://openairdocs.org/sdr/2022FA0000494), Sep 2, 2022: NONE, WORN (N314RC)
- [SDR HNAA2022090500254](https://openairdocs.org/sdr/HNAA2022090500254), Sep 1, 2022: WARNING MESSAGE, ILLUMINATED (N669MB)
- [SDR 2022F00317](https://openairdocs.org/sdr/2022F00317), Aug 11, 2022: NONE, NONE (N225AX)
- [SDR 9WGA2022080878101](https://openairdocs.org/sdr/9WGA2022080878101), Aug 8, 2022: GAUGE, BROKEN (N781SN)
- [SDR TIMA20220108009](https://openairdocs.org/sdr/TIMA20220108009), Aug 1, 2022: GENERATOR, INOPERATIVE (N216CS)
- [SDR CALA2022070601649](https://openairdocs.org/sdr/CALA2022070601649), Jul 6, 2022: HYDRAULIC SYSTEM, FAILED (N24973)
- [SDR ASAA2022070138906](https://openairdocs.org/sdr/ASAA2022070138906), Jul 1, 2022: CIRCUIT BREAKER, FAULTY (N291BT)
- [SDR 2022F00288](https://openairdocs.org/sdr/2022F00288), Jul 1, 2022: NONE, NONE (N705KW)
- [SDR 2022FA0000302](https://openairdocs.org/sdr/2022FA0000302), Jun 19, 2022: NONE, NONE (N795AX)
- [SDR ASAA2022061138613](https://openairdocs.org/sdr/ASAA2022061138613), Jun 11, 2022: APU, FAILED (N933AK)
- [SDR ASAA2022060238554](https://openairdocs.org/sdr/ASAA2022060238554), Jun 2, 2022: CONNECTOR, BURNED (N403AS)
- [SDR AALA202206039756](https://openairdocs.org/sdr/AALA202206039756), May 31, 2022: GENERATOR, NONE (N787AL)
- [SDR ASAA2022051238299](https://openairdocs.org/sdr/ASAA2022051238299), May 12, 2022: CIRCUIT BREAKER, FAULTY (N921AK)
- [SDR CALA2022050601156](https://openairdocs.org/sdr/CALA2022050601156), May 5, 2022: HARNESS, DAMAGED (N77871)
- [SDR CALA2022042901100](https://openairdocs.org/sdr/CALA2022042901100), Apr 29, 2022: IDG, FAILED (N14107)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.