# SDR UIEA2017071201177

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2017
- Submitted: July 12, 2017
- Operation: Air carrier
- Aircraft: [N1709A](https://openairdocs.org/aircraft/N1709A), registered now
- Make and model: Boeing 767375
- Aircraft serial: 24086
- Aircraft time: 89,745 hours, 20,427 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Isolation Valve
- Part number: 7321175003
- Part serial: 86418B
- Condition: Broken
- Location: Bleed Air Sys
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2017071201177

## Discrepancy

LEFT ISOLATION VALVE BYPASS CHECK VALVE SPRING BROKEN. REMOVED AND REPLACED LEFT ISOLATION BY PASS VALVE. OPERATIONAL CHECKS COMPLIED WITH AND GOOD PER AMM.

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