# SDR SWAA2012041102984

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2012
- Submitted: April 11, 2012
- Operation: Air carrier
- Aircraft: [N783SW](https://openairdocs.org/aircraft/N783SW), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29809
- Aircraft time: 42,232 hours, 24,571 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Regulator
- Part number: 1074846
- Part serial: 988C
- Condition: Malfunctioned
- Location: Bleed Air Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2012041102984

## Discrepancy

AIR TURNBACK - LT BLEED TRIP IN CLIMBOUT RESET THEN TRIP-OFF AGAIN.  REMOVED AND REPLACED NR 1 HIGH STAGE PRESSURE REGULATOR & PRECOOLER CONTROL VALVE.

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