# SDR AALA202310168740

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2023
- Submitted: October 16, 2023
- Operation: Air carrier
- Aircraft: [N123UW](https://openairdocs.org/aircraft/N123UW), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1310
- Aircraft time: 65,936 hours, 32,908 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Valve
- Part number: 6774E010000
- Part serial: 01648
- Condition: Warning Message
- Location: Zone 400 - Nac/P
- Part time: 62,168 hours, 30,884 cycles
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202310168740

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO DFW DUE TO AN EICAS AIR ENGINE 1 BLEED ABNORMAL PRESSURE. THE AIRCRAFT LANDED SAFELY AT DFW WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE #1 ENGINE PRESSURE REGULATING VALVE PER AMM 36-11-52 AND ACCOMPLISHED A SATISFACTOIRY OPERATIONAL CHECK.

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