# SDR AALA202510230570

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 2025
- Submitted: October 23, 2025
- Operation: Air carrier
- Aircraft: [N339TP](https://openairdocs.org/aircraft/N339TP), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 44486
- Aircraft time: 6,330 hours, 2,379 cycles
- System (JASC): [7732 · Engine Vibration Analyzer](https://openairdocs.org/jasc/7732)
- Part: Accelerometer
- Part number: 144168000501
- Part serial: HC1816308
- Condition: Out Of Tolerance
- Location: Zone 400
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202510230570

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING CLIMB NUMBER 1 ENGINE VIBRATION BEGAN TO SPIKE INTO ABNORMAL RANGE. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT PHL.  REMOVED AND REPLACED TCF BEARING ACCELEROMETER, PER AMM 77-31-06. ALL INSPECTION AND OPERATIONAL CHECK GOOD**(CLOSED).

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