# SDR CALA2025122912465

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2025
- Submitted: December 29, 2025
- Operation: Air carrier
- Aircraft: [N451UA](https://openairdocs.org/aircraft/N451UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 865
- Aircraft time: 82,029 hours, 34,085 cycles
- System (JASC): [7120 · Engine Mount Section](https://openairdocs.org/jasc/7120)
- Part: Crossbeam
- Part number: 7452010503
- Condition: Worn
- Location: Zone 400
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025122912465

## Discrepancy

NUMBER 1 ENG PNEUMATIC FLEX LINE CHAFING DEEPLY INTO FWD ENG MOUNT LT THRUST LINK AND MOUNT CROSSBEAM OTBD EDGE RADIUS.  REMOVED AND REPLACED ENGINE 1 FWD MOUNT IAW AMM 71-21-1 2-000-011-A, AND AMM 71-21-12-400-011-A.

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