# SDR UIEA2021061401347

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 10, 2021
- Submitted: June 14, 2021
- Operation: Air carrier
- Aircraft: [N641GT](https://openairdocs.org/aircraft/N641GT), registered now
- Make and model: Boeing 767-38E
- Registry model: [Boeing 767-38E](https://openairdocs.org/model/boeing-767-38e) (OpenAirDocs)
- Aircraft serial: 25132
- Aircraft time: 90,275 hours, 25,581 cycles
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Clamp
- Condition: Leaking
- Location: Apu Surge
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021061401347

## Discrepancy

APU AIR DROPS TO 5 PSI DURING ENGINE START/ SLOWLY RECOVERS.  TESTED NEW ENG VALVE, AMM 49-53-07, NO HELP, REINSTALLED ORIGINAL VALVE ASSY.   INSTALLED APU SURGE CONTROLER VALVE HOSE CLAMP IAW AMM 49-53-01.  PERFORMED OPS CHECK ON THE APU SURGE VALVE PER AMM 49-11-00. MAX PRESSURE 12 PSI ORIGINAL SURGE VALVE RE-INSTALLED.

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