# SDR AALA202503280295

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2025
- Submitted: March 28, 2025
- Operation: Air carrier
- Aircraft: [N829NN](https://openairdocs.org/aircraft/N829NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33210
- Aircraft time: 44,964 hours, 18,882 cycles
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Bushing
- Condition: Corroded
- Location: Zone 300
- 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/AALA202503280295

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: LEFT ELEVATOR TAB CONTROL MECHANISM SPRINGS SUPPORT BUSHINGS 2EA (AALA202503287087) (AALA202503280295) HAVE CORROSION. REMOVED AND REPLACED BUSHINGS ON LEFT HAND ELEVATOR TAB MECHANISM, PER B737-NG AMM 27-31-34. PERFORMED SATISFACTORY ELEVATOR AND ELEVATORTRIN CONTROL SYSTEM OPERATION, PER B737NG AM 27-31-00-710-801. PERFORMED SATISFACTORY ELEVATOR TAB CONTROL SYSTEM OPERATIONAL TEST. PER B737-NG AMM 27-31-00-700-815.

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