# SDR CALA2019080101287

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2019
- Submitted: August 1, 2019
- Operation: Air carrier
- Aircraft: [N79279](https://openairdocs.org/aircraft/N79279), registered now
- Make and model: Boeing 737824
- Aircraft serial: 31597
- Aircraft time: 52,025 hours, 18,510 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Warning Message
- Condition: False Activation
- Location: Apu Oil System
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2019080101287

## Discrepancy

APU LOW OIL PRESSURE LIGHT, LIGHT ON, APU OPERATES WITH NO PROTECTIVE SHUTDOWN. PERFORMED APU BITE CK, FOUND MX MSG 49-91007. FLWG FIM TASK 49-0-00-810-803, NO TROUBLE FOUND. NO ADDED APU OIL. APU OPS & APU IND ALL NORMAL. A/C BACK IN SERVICE. TOMC EMC DESK NOTIFIED.

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