# SDR AALA202605041439

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2026
- Submitted: May 4, 2026
- Operation: Air carrier
- Aircraft: [N321TG](https://openairdocs.org/aircraft/N321TG), registered now
- Make and model: Boeing 737-8
- Registry model: [Boeing 737-8](https://openairdocs.org/model/boeing-737-8) (OpenAirDocs)
- Aircraft serial: 68101
- Aircraft time: 8,902 hours, 3,371 cycles
- Engine: Cfmint LEAP1B25
- System (JASC): [7732 · Engine Vibration Analyzer](https://openairdocs.org/jasc/7732)
- Part: Accelerometer
- Part number: 144168000501
- Part serial: DN7808735
- Condition: Faulted
- Location: Nr 1 Engine
- Part time: 2,489 hours, 947 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202605041439

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO NR 1 ENGINE HIGH VIBRATION ON CLIMB OUT SAW AS MUCH AS 4.3 ON THE GAUGE. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT LAX.  REMOVED AND REPLACED TURBINE CENTER FRAME ACCELEROMETER ON NR 1 ENGINE IAW AMM 77-31-06 OPS CHECKED GOOD.

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