# SDR AALA202205127356

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2022
- Submitted: May 12, 2022
- Operation: Air carrier
- Aircraft: [N163US](https://openairdocs.org/aircraft/N163US), registered now
- Make and model: Airbus A300*
- Aircraft serial: 1417
- Aircraft time: 67,817 hours, 25,962 cycles
- System (JASC): [4980 · APU Exhaust System](https://openairdocs.org/jasc/4980)
- Part: Thermocouple
- Condition: Faulty
- Location: Zone 300 - Stabs
- Component: Apu, Honeywell, QEC1319A
- Component part number: 38007081WGEN
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202205127356

## Discrepancy

AIRCRAFT WAS GROUNDED: APU AUTO SHUTDOWN 23 MINUTES AFTER TAKEOFF. APU SHUTDOWN AGAIN AFTER RESTART. RETURNED TO DFW, LANDING SAFELY. REPLACED APU LOW OIL PRESSURE SWITCH (AALA202205110105) PER AMM 49-94-14. OPERATIONAL AND LEAK CHECKS GOOD. REPLACED #2 EGT THERMOCOUPLE PROBE (AALA202205127356) PER AMM 49-72-15. OPERATIONAL CHECK GOOD.

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