# SDR 2013FA0000144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2013
- Submitted: March 4, 2013
- Operation: General aviation
- Aircraft: N131AJ
- Make and model: Lear 35A
- Registry model: [Lear 35A](https://openairdocs.org/model/gates-learjet-35a) (OpenAirDocs)
- Aircraft serial: 381
- Aircraft time: 13,842 hours, 9,699 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Modulating Valve
- Part number: 32144782
- Part serial: P493C
- Condition: Malfunctioned
- Location: Rt Engine
- Stage of operation: AA
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2013FA0000144

## Discrepancy

PNEUMATIC SHUTOFF MODULATING VALVE FAILURE RESULTING IN DEPRESSURIZATION OF ACFT IN FLIGHT.

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