# SDR ASAA2023090244896

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2023
- Submitted: September 5, 2023
- Operation: Air carrier
- Aircraft: [N978AK](https://openairdocs.org/aircraft/N978AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43348
- Aircraft time: 4,542 hours, 1,332 cycles
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Unknown
- Part number: 254A115015
- Part serial: 1962
- Condition: Faulty
- Location: Area Fwd Of Nlg
- Part time: 4,542 hours, 1,332 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023090244896

## Discrepancy

"MAINT" ILLUMINATED AFTER LANDING EXTINGUISHED ON TAXI IN. GROUNDED - YES. VERIFIED FAULT, NO STATUS MSG, FAULT HISTORY SHOWS INTER MSG 32-62101, SEE LAST 4 L/P'S FOR HISTORY KW 80780 09/02/2023, REMOVED & REPLACED NEW AUTO THROTTLE SWITCH PACK M1766, PERFORMED INSTALLATION TESTS GOOD, OPENED & CLOSE NWW UPPER LEFT PANEL & PERFORMED LEAK TEST GOOD ,AMM 76-11-07/401, AMM 05-51-91-790-801.

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