# SDR AALA202202077274

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 2022
- Submitted: February 7, 2022
- Operation: Air carrier
- Aircraft: [N834NN](https://openairdocs.org/aircraft/N834NN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 29576
- Aircraft time: 35,647 hours, 14,551 cycles
- Engine: CFM567B
- Engine time: 35,646 hours, 14,551 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: CFM567BTIQEC737
- Part serial: 802993
- Condition: Noisy
- Location: Zone 400 - Nac/P
- Part time: 35,646 hours, 14,551 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202202077274

## Discrepancy

AIRCRAFT WAS GROUNDED: ABNORMAL ENGINE INDICATIONS NUMBER 2 ENGINE AT ALTITUDE AND IN DECENT LOUD NOISES/BANGING OBSERVED NUMBER ONE DROPPED OFF TO APPROXIMATELY 54 PERCENT. AT IDLE ALL INDICATIONS NORMAL. CONTINUED IDLE OPERATION UNTIL LANDING. EMERGENCY WAS DECLARED AND WAS NOT OVERWEIGHT FOR LANDING. **SUPPLEMENTAL REPORT FOR AALA202202047274: REMOVED AND REPLACED NUMBER 2 ENGINE OPERATIONS CHECK LEAK CHECK GOOD PER JOB CARD 08L40072003** (CLOSED)

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