# SDR AALA202604301103

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2026
- Submitted: April 30, 2026
- Operation: Air carrier
- Aircraft: [N920AN](https://openairdocs.org/aircraft/N920AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29521
- Aircraft time: 65,799 hours, 27,234 cycles
- System (JASC): [5523 · Elevator, Tab Structure](https://openairdocs.org/jasc/5523)
- Part: Tab
- Condition: Corroded
- Location: Zone 300 Elev
- 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/AALA202604301103

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND HORIZONTAL STABILIZER ELEVATOR TAB CONTROL MECHANISM LOWER SPRING ATTACH HARDWARE EVIDENCE OF CORROSION. REMOVED AND REPLACED RRIGHT HAND HORIZONTAL STABILIZER ELEVATOR TAB CONTROL MECHANISM LOWER SPRING ATTACH HARDWARE AND BUSHING, PER B737 NG AMM 27-31-34. PERFORMED SATISFACTORY ELEVATOR AND ELEVATOR TRIM CONTROL SYSTEM IAW B737 NG AMM 27-31-00-710-801.

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