# SDR CALA2016042200244

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2016
- Submitted: April 22, 2016
- Operation: Air carrier
- Aircraft: [N73299](https://openairdocs.org/aircraft/N73299), registered now
- Make and model: Boeing 737824
- Aircraft serial: 34005
- Aircraft time: 35,230 hours, 12,264 cycles
- System (JASC): [4970 · APU Indicating System](https://openairdocs.org/jasc/4970)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2016042200244

## Discrepancy

APU SHUTDOWN IN FLIGHT DUE TO AMBER LOW OIL PRESS LIGHT.  TROUBLE SHOT IAW FIM 49-90-10.  BITE SHOWS FAULT 49-91007.  CHECKED APU OIL AT CDU, SHOWS FULL.  PHYSICALLY CHECKED APU OIL SIGHT GLASS, JUST ABOVE ADD.  ADDED OIL IAW AMM 12-13-31.  INSPECTED MAG CHIP, NO CONTAMINANTS.  NO SIGNS OF OIL LEAK, ALL CONNECTORS TIGHT.  AS PRECAUTIONARY, R & R LOW OIL PRESS SWITCH IAW AMM 49-94-22.  OPERATIONS GOOD, NO LEAKS, NO FAULT, FAULT DATA FAULT CODE 1 49-91007 FAULT COMMENTS, NONE.

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