# SDR ASAA2023110646063

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2023
- Submitted: November 9, 2023
- Operation: Air carrier
- Aircraft: [N585AS](https://openairdocs.org/aircraft/N585AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35683
- Aircraft time: 58,664 hours, 17,623 cycles
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Generator
- Part number: 28B5459STYLEA
- Part serial: 16B0370
- Condition: Damaged
- Location: Apu
- Part time: 12,547 hours, 23,954 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023110646063

## Discrepancy

DURING TAXI IN, APU AUTO SHUTDOWN AND LOW OIL PRESSURE ANNUNCIATOR LIGHT AND MASTER CAUTION ILLUMINATED. GROUNDED - YES. (RESOLVED ON W/O: 1976115 TASKCARD: N/R-00003 ) ACCOMPLISHING FIM 49-90 TASK 803, OIL PRESSURE SHUTDOWN, FOUND LOW OIL QUANTITY AND SGU CASING CRACKED. APU REQ NEW SGC, P/N 28B545-9STYLEA VERIFIED WITH SEAMC MITCH IAW AIPC 49-41-21 FIG 1 ITEM 15. REMOVED AND REPLACED SGU REF AMM 49-41-21. GROUND VERIFICATION SUCCESSFUL. THIS CLEARS MEL 49-1B. PLACARDS REMOVED SEAMC ASHRAF NOTIFIED. NO FAULTS NOTED.

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