# JASC 7797: Engine Indicating System Wiring - Type: JASC system/component code (FAA) - ATA chapter: 77 Engine Indicating - Title in the code table: ENGINE INDICATING SYSTEM WIRING - Service difficulty reports: 591 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=67 - Page: https://openairdocs.org/jasc/7797 ## What it covers For reports indicating a problem with wiring specific to the Engine Indication System. ## Latest service difficulty reports - [SDR AALA202608319467](https://openairdocs.org/sdr/AALA202608319467), Aug 26, 2026: WIRE HARNESS, DEFECTIVE (N110AN) - [SDR CALA2026083119066](https://openairdocs.org/sdr/CALA2026083119066), Aug 26, 2026: WIRE HARNESS, DAMAGED (N39297) - [SDR AALA202608266120](https://openairdocs.org/sdr/AALA202608266120), Aug 23, 2026: WIRE HARNESS, BURNED (N315UA) - [SDR QMLA202608122057](https://openairdocs.org/sdr/QMLA202608122057), Aug 11, 2026: WIRE, CHAFED (N637PC) - [SDR YENA2026072700625](https://openairdocs.org/sdr/YENA2026072700625), Jul 24, 2026: ELEC CONNECTOR, DAMAGED (N2193J) - [SDR SWAA2026072069448](https://openairdocs.org/sdr/SWAA2026072069448), Jul 17, 2026: PROBE, FAULTED (N225WN) - [SDR CALA2026052616529](https://openairdocs.org/sdr/CALA2026052616529), May 24, 2026: RESISTOR, FAULTY (N67134) - [SDR YENA2026051900468](https://openairdocs.org/sdr/YENA2026051900468), May 18, 2026: ELEC CONNECTOR, LOOSE (N4048J) - [SDR DALA2026033002055](https://openairdocs.org/sdr/DALA2026033002055), Mar 28, 2026: WIRE HARNESS, SHORTED (N360DN) - [SDR AALA202602235710](https://openairdocs.org/sdr/AALA202602235710), Feb 21, 2026: WIRE HARNESS, ERRATIC (N9022G) - [SDR YENA2025102801062](https://openairdocs.org/sdr/YENA2025102801062), Oct 25, 2025: WIRE HARNESS, FAILED (N4073J) - [SDR SCNA20251009401](https://openairdocs.org/sdr/SCNA20251009401), Oct 9, 2025: ELEC CONNECTOR, DIRTY - [SDR HALA20251006302](https://openairdocs.org/sdr/HALA20251006302), Oct 5, 2025: ELEC CONNECTOR, DAMAGED (N360HA) - [SDR DALA2025100607244](https://openairdocs.org/sdr/DALA2025100607244), Oct 4, 2025: WIRE HARNESS, FAULTED (N842DN) - [SDR SWAA2025093019673](https://openairdocs.org/sdr/SWAA2025093019673), Sep 27, 2025: WIRE HARNESS, SHORTED (N222WN) - [SDR ABXA20250922235](https://openairdocs.org/sdr/ABXA20250922235), Sep 22, 2025: ELEC CONNECTOR, DEFECTIVE (N745AX) - [SDR NACA2025071800003](https://openairdocs.org/sdr/NACA2025071800003), Jul 18, 2025: WIRE HARNESS, WORN (N566NC) - [SDR AALA202507099554](https://openairdocs.org/sdr/AALA202507099554), Jun 25, 2025: WIRE HARNESS, FAULTED (N161UW) - [SDR AALA202507095688](https://openairdocs.org/sdr/AALA202507095688), Jun 25, 2025: WIRE HARNESS, FAULTED (N161UW) - [SDR AALA202507099096](https://openairdocs.org/sdr/AALA202507099096), Jun 25, 2025: WIRE HARNESS, FAULTED (N161UW) - [SDR AALA202507099743](https://openairdocs.org/sdr/AALA202507099743), Jun 25, 2025: WIRE HARNESS, FAULTED (N161UW) - [SDR AALA202507098423](https://openairdocs.org/sdr/AALA202507098423), Jun 25, 2025: WIRE HARNESS, FAULTED (N161UW) - [SDR AALA202507097894](https://openairdocs.org/sdr/AALA202507097894), Jun 25, 2025: COUPLING, FAULTED (N161UW) - [SDR AALA202507095557](https://openairdocs.org/sdr/AALA202507095557), Jun 25, 2025: WIRE HARNESS, FAULTED (N161UW) - [SDR HALA20250407103](https://openairdocs.org/sdr/HALA20250407103), Apr 5, 2025: WIRE HARNESS, CHAFED (N392HA) - [SDR NACA2025031100011](https://openairdocs.org/sdr/NACA2025031100011), Mar 11, 2025: WIRE HARNESS, DAMAGED (N321CM) - [SDR NACA2025031100010](https://openairdocs.org/sdr/NACA2025031100010), Mar 11, 2025: WIRE HARNESS, DAMAGED (N321CM) - [SDR R61A2025022700118](https://openairdocs.org/sdr/R61A2025022700118), Feb 27, 2025: ELEC CONNECTOR, DIRTY (N733YX) - [SDR AALA202502110145](https://openairdocs.org/sdr/AALA202502110145), Feb 10, 2025: WIRE HARNESS, DAMAGED (N118NN) - [SDR AALA202502117570](https://openairdocs.org/sdr/AALA202502117570), Feb 10, 2025: WIRE HARNESS, DAMAGED (N118NN) - [SDR AALA202502116976](https://openairdocs.org/sdr/AALA202502116976), Feb 10, 2025: WIRE HARNESS, DAMAGED (N118NN) - [SDR AALA202502119539](https://openairdocs.org/sdr/AALA202502119539), Feb 10, 2025: WIRE HARNESS, INOPERATIVE (N118NN) - [SDR CALA2025011701944](https://openairdocs.org/sdr/CALA2025011701944), Jan 16, 2025: WIRE HARNESS, BROKEN (N66051) - [SDR DXTA2025011401913](https://openairdocs.org/sdr/DXTA2025011401913), Jan 10, 2025: CABLE, DEFECTIVE (N239QS) - [SDR SWAA2024101547689](https://openairdocs.org/sdr/SWAA2024101547689), Oct 11, 2024: CONNECTOR, FAULTED (N440LV) - [SDR AALA202410108579](https://openairdocs.org/sdr/AALA202410108579), Oct 9, 2024: WIRE HARNESS, DAMAGED (N929NN) - [SDR CALA2024090500557](https://openairdocs.org/sdr/CALA2024090500557), Sep 4, 2024: TERMINAL, DISCONNECTED (N79011) - [SDR CALA2024071502032](https://openairdocs.org/sdr/CALA2024071502032), Jul 10, 2024: WIRE HARNESS, FAULTED (N57439) - [SDR KY72024F00007](https://openairdocs.org/sdr/KY72024F00007), Jun 24, 2024: CONNECTOR, DIRTY (N2691W) - [SDR GTIA2024061738180](https://openairdocs.org/sdr/GTIA2024061738180), Jun 14, 2024: WIRE HARNESS, UNKNOWN (N661NK) - [SDR GTIA2024060138150](https://openairdocs.org/sdr/GTIA2024060138150), May 29, 2024: STUD, LOOSE (N535NK) - [SDR SWAA2024041876190](https://openairdocs.org/sdr/SWAA2024041876190), Apr 17, 2024: WIRE HARNESS, OUT OF TOLERANCE (N236WN) - [SDR ABXA2024040272](https://openairdocs.org/sdr/ABXA2024040272), Apr 2, 2024: WIRE, DAMAGED (N317CM) - [SDR YENA2024030600356](https://openairdocs.org/sdr/YENA2024030600356), Mar 1, 2024: WIRE HARNESS, SHORTED (N587JB) - [SDR GTIA2023111737614](https://openairdocs.org/sdr/GTIA2023111737614), Nov 15, 2023: WIRE HARNESS, FAULTED (N640NK) - [SDR AALA202309254341](https://openairdocs.org/sdr/AALA202309254341), Sep 24, 2023: WIRE HARNESS, CHAFED (N8001N) - [SDR YV3R2023100200581](https://openairdocs.org/sdr/YV3R2023100200581), Sep 1, 2023: WIRE HARNESS, MALFUNCTIONED (N66YP) - [SDR SWAA2023073184033](https://openairdocs.org/sdr/SWAA2023073184033), Jul 29, 2023: WIRE HARNESS, OVERTEMP (N212WN) - [SDR CALA2023051201487](https://openairdocs.org/sdr/CALA2023051201487), May 11, 2023: WIRE HARNESS, FAILED (N77261) - [SDR GTIA2023042737140](https://openairdocs.org/sdr/GTIA2023042737140), Apr 26, 2023: WIRE HARNESS, FAULT MESSAGE (N933NK) --- From OpenAirDocs.org, an independent open copy of FAA data. 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