# SDR AALA201808089021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 7, 2018
- Submitted: August 13, 2018
- Operation: Air carrier
- Aircraft: [N143AN](https://openairdocs.org/aircraft/N143AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6745
- Aircraft time: 10,056 hours, 3,768 cycles
- Engine: Iae V2533A5
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Transducer
- Condition: Faulted
- Location: Nr 1 Eng Bleed
- Stage of operation: CR
- 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/AALA201808089021

## Discrepancy

DURING CRUISE, AIRCRAFT EXPERIENCED A LOSS OF BOTH PACKS. FLIGHT DESCENDED 12,000 FEET. NO EMERGENCY WAS DECLARED. QRH PROCEDURES WERE COMPLETED, AIR ENGINE 2 BLEED FAULT, ENGINE 1 BLEED VALVE FAILED AND CLOSED WITH ASSOCIATED ENGINE 1 BLEED, PACK 1, PACK 2. FLIGHT DIVERTED AND LANDED WITHOUT FURTHER INCIDENT.  MAINTENANCE REPLACED NR 1 ENGINE BLEED REGULATED PRESSURE TRANSDUCER PER AMM 36-11-16 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

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