# SDR ASAA2023050443158

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2023
- Submitted: May 8, 2023
- Operation: Air carrier
- Aircraft: [N963AK](https://openairdocs.org/aircraft/N963AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44069
- Aircraft time: 125 hours, 43 cycles
- System (JASC): [4960 · APU Controls](https://openairdocs.org/jasc/4960)
- Part: Eec
- Part number: 707208601
- Part serial: 6505150206518
- Condition: Faulty
- Location: Aft Cargo Compt
- Part time: 146 hours, 50 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/ASAA2023050443158

## Discrepancy

DURING PRE-FLIGHT, THE AMBER MAINT LIGHT ON THE OVERHEAD PANEL WAS ILLUMINATED. GROUNDED - YES. STATUS SHOWS APU OIL FAULT, ACCOMPLISHED EXISTING FAULT CHECK REF B737-9 AMM 46-13-02, FAULT 49-89002 LOGGED ACTIVE. CHECKED APU OIL LEVEL AT THE TANK, APU OIL IS FULL. WAS ABLE TO CLEAR MAINT LIGHT FAULT 49-89002 IS STILL ACTIVE BUT MX LT EXTINGUISHED. T/S PER B737-9 IFIM TASK 49-00-00-810-817. RMVD & RPLCD APU ECU REF B737-9 AMM 49-61-12. APU OPS CHECK GOOD.

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