# SDR TSAA0549046

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2005
- Submitted: October 12, 2005
- Operation: Air carrier
- Aircraft: [N739AL](https://openairdocs.org/aircraft/N739AL), registered now
- Make and model: Boeing 737-73A
- Registry model: [Boeing 737-73A](https://openairdocs.org/model/boeing-737-73a) (OpenAirDocs)
- Aircraft serial: 28500
- Engine: Ge CFM567B24
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Fcu
- Part number: 4419215
- Part serial: CUC10977
- Condition: Defective
- Location: Apu
- Stage of operation: IN
- 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/TSAA0549046

## Discrepancy

DURING PREFLIGHT CHECK, APU AUTO SHUTDOWN ON RAMP, SENSING LOW OIL PRESSURE.  T/S IAW FIM 49-90/802-803 TROUBLESHOT IAW FIM.  REPLACED APU LUBE MODULE TASK 49-91-11-4/PG. 1-  REPLACED FCU IAW 49-31-11-4/SEC 4 199286 ITEM 2/3. LEAK AND OPS CHECK GOOD.  NO DEFECTS NOTED.  AIRCRAFT RETURNED TO SERVICE.

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