# SDR ASAA2020010931817

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2020
- Submitted: January 10, 2020
- Operation: Air carrier
- Aircraft: [N462AS](https://openairdocs.org/aircraft/N462AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36361
- Aircraft time: 22,451 hours, 7,306 cycles
- System (JASC): [4930 · APU Engine Fuel and Control](https://openairdocs.org/jasc/4930)
- Part: Unknown
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020010931817

## Discrepancy

FAULT LIGHT ILLUMINATED ON APU DURING START. GROUNDED - YES. PERFORMED APU BITE TEST FOUND FAULT 49-31016 OVERTEMP SHUTDOWN. PERFORMED B737-900 FIM 49-30 TASK 803 GVI OF APU INLET DUCT AND COMPRESSOR INLET PLENUM WITH NO DEFECTS NOTED. STARTED APU 4 TIMES, ALL STARTS NORMAL. NO FAILURES FOUND. A/C OK FOR SERVICE.

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