# SDR AALA202410100075

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2024
- Submitted: October 10, 2024
- Operation: Air carrier
- Aircraft: [N912NN](https://openairdocs.org/aircraft/N912NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33319
- Aircraft time: 34,900 hours, 15,144 cycles
- Engine: Cfmint CFM567B20
- Engine time: 34,900 hours, 15,144 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part serial: 962451
- Condition: Fod
- Location: Nr 1
- Stage of operation: CR
- How discovered: O
- Nature of condition: C, E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202410100075

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ENGINE NUMBER 1 VIBRATION AT CRUISE.  SUSTAINED LEVELS GREATER THAN 1.0 ACCOMPANIED BY AUDIBLE OR AIRFRAME VIBRATIONS; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT CLT. REMOVED TOOLING FROM PREVIOUS JOB INSIDE THE NUMBER 1 ENGINE SPINNER CONE, INSPECTED NO DAMAGE NOTED, REMOVED AND REINSTALLED SPINNER CONE. VIBRATION CHECK GOOD 0.3 NO FURTHERDEFECTS NOTED. PER AMM 72-21-01,

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