# SDR AALA202310031217

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2023
- Submitted: October 3, 2023
- Operation: Air carrier
- Aircraft: [N713UW](https://openairdocs.org/aircraft/N713UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1040
- Aircraft time: 63,958 hours, 37,149 cycles
- Engine: Cfmint CFM565B6P
- Engine time: 28,140 hours, 14,419 cycles
- System (JASC): [7530 · Compressor Bleed Control](https://openairdocs.org/jasc/7530)
- Part: Regulator Valve
- Part number: 6774G010000
- Part serial: 677412729
- Condition: Defective
- Location: Nr 1 Engine
- Part time: 24,106 hours, 9,931 cycles
- Stage of operation: DE
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202310031217

## Discrepancy

AIRCRAFT WAS GROUNDED: ON DESCENT AT FL 26,000 RECEIVED A NUMBER ONE ENGINE STALL COMPRESSOR FOR ABOUT 4 SECONDS FOLLOWED BY A LOUD THUMP. MAINTENANCE FOUND THE BLEED PRESSURE REGULATOR VALVE AND THE HIGH PRESSURE BLEED VALVE ON THE #1 ENGINE LEAKING. REPLACED THE BLEED PRESSURE REGULATOR VALVE PER AMM 36-11-52 (AALA202310031217) AND HIGH PRESSURE BLEED VALVE PER AMM 36-11-51. (AALA202310034151) A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.

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