# SDR 2007UALA03545

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 5, 2007
- Submitted: September 7, 2007
- Operation: Air carrier
- Aircraft: N912UA
- Make and model: Boeing 737522
- Aircraft serial: 25290
- Aircraft time: 44,137 hours, 32,078 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Bleed Air Sys
- Condition: Malfunctioned
- Location: Right
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA03545

## Discrepancy

DURING CLIMB ACFT LOST RT BLEED SUPPLY.  CABIN PRESSURE REACHED 10,000 FT, RAPID DESCENT TO FL230 AND SITUATION STABILIZED.  MASKS DID NOT DEPLOY.

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