# SDR UIEA2014011000006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2014
- Submitted: January 13, 2014
- Operation: Air carrier
- Aircraft: [N640GT](https://openairdocs.org/aircraft/N640GT), registered now
- Make and model: Boeing 767-3S1
- Registry model: [Boeing 767-3S1](https://openairdocs.org/model/boeing-767-3s1) (OpenAirDocs)
- Aircraft serial: 25221
- Aircraft time: 73,479 hours, 15,464 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Condition: Malfunctioned
- Location: Bleed Air Sys
- Stage of operation: AP
- 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/UIEA2014011000006

## Discrepancy

ON DECENT LT BLEED VLV DUCT PRESS DROPPED MORE THAN 10 PSI & HAD FLUCTUATION OF 5 PSI DIFFERENCE.  REPLACED PRSOV IAW 767 AMM 36-11-09, OPERATIONS CHECKED NORMAL.

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