# SDR UIEA2019101095690

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2019
- Submitted: October 10, 2019
- Operation: Air carrier
- Aircraft: [N1499A](https://openairdocs.org/aircraft/N1499A), registered now
- Make and model: Boeing 767328
- Aircraft serial: 27428
- Aircraft time: 78,976 hours, 17,329 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Solenoid Valve
- Part number: 38761661
- Part serial: 3983
- Condition: Failed
- Location: Apu Deoiler
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019101095690

## Discrepancy

APU RELIABILITY COLD SOAK -55C FL 390. 3 ATTEMPTS/UNSUCCESSFUL.  PERFORMED APU HEALTH CHECK IAW EO 6749A003, NO DEFECTS NOTED. REMOVED AND REPLACED DE-OIL SOLENOID VALVE IAW AMM 49-27-08. LEAK CHECK GOOD.  SUCCESSFUL APU COLD SOAK START C/W INTO CVG. </P>)

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