# SDR ASAA2023020841908

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2023
- Submitted: February 13, 2023
- Operation: Air carrier
- Aircraft: [N408AS](https://openairdocs.org/aircraft/N408AS), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 41732
- Aircraft time: 37,271 hours, 11,799 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator
- Part number: 1074847
- Part serial: 12399
- Condition: Failed
- Location: #1 Engine
- Part time: 3,187 hours, 973 cycles
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023020841908

## Discrepancy

"BLEED TRIP OFF" ON DEPARTURE, CLIMBING THROUGH 12,000. RAN QRH PROCEDURE."TRIP RESET " DID NOT RESET. GROUNDED - YES. AIR TURNBACK -- REMOVED AND REPLACED PRSOV B737-900 AMM 36-12-02. REMOVED AND REPLACED HIGH STAGE REGULATOR AMM 36-11-07.

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