# SDR HALA2013120500176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2013
- Submitted: December 5, 2013
- Operation: Air carrier
- Aircraft: N590HA
- Make and model: Boeing 767-3CB
- Registry model: [Boeing 767-3CB](https://openairdocs.org/model/boeing-767-3cb) (OpenAirDocs)
- Aircraft serial: 33467
- Aircraft time: 43,487 hours, 7,817 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 7732887810
- Part serial: ME3199
- Condition: Malfunctioned
- Part time: 7,901 hours, 1,274 cycles
- Stage of operation: CL
- 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/HALA2013120500176

## Discrepancy

DURING CLIMBOUT, THERE WAS A LARGE SPLIT BETWEEN DUCT PRESSURE INDICATIONS-LT-35 & RT-19 PSI.  ALL OPS WERE OTHER WISE NORMAL AND PRESSURES WERE EQUAL DURING CRUISE.  REMOVED PRSOV ON ENGINE NR 2.  REPLACED RT PRSOV IAW MM 36-11-09.  RAN ENGINE ON HIGH POWER IAW MM 77-00-00. LEAK & OPS CHECKED GOOD. OK FOR SERVICE.

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