# SDR UIEA2018081301666

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 12, 2018
- Submitted: August 16, 2018
- Operation: Air carrier
- Aircraft: [N1327A](https://openairdocs.org/aircraft/N1327A), registered now
- Make and model: Boeing 767-37D
- Registry model: [Boeing 767-37D](https://openairdocs.org/model/boeing-767-37d) (OpenAirDocs)
- Aircraft serial: 26328
- Aircraft time: 81,934 hours, 11,598 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Control Valve
- Part number: 97980612
- Part serial: 1379C
- Condition: Malfunctioned
- Location: Apu
- Stage of operation: UK
- 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/UIEA2018081301666

## Discrepancy

APU FAULT EICAS MESSAGE. PERFORMED FIM TASK 49-11 FT 987 BITE PROCEDURE FAULTED " REVERSE FLOW" ALSO PERFORMED FIM TASK 49-11 FT 994, TS TO COMPRESSOR INLET TEMP SENSOR PN 3876072-1. REMOVED AND REPLACED APU SURGE CONTROL VALVE IAW AMM 49-53-01. OPS CHECK GOOD.

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