# SDR USAA2011091900007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2011
- Submitted: September 19, 2011
- Operation: Air carrier
- Aircraft: N434US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24556
- Aircraft time: 58,859 hours, 39,386 cycles
- System (JASC): [5523 · Elevator, Tab Structure](https://openairdocs.org/jasc/5523)
- Part: Hinge Fitting
- Part number: 65C2638428
- Part serial: 3325
- Condition: Worn
- Location: Rt Elevator
- Part time: 49,242 hours, 31,806 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2011091900007

## Discrepancy

RON CHECK - IN MANUAL REVERSION, NOSE UP ELEVATOR CAUSES VIBRATION IN BOTH YOKES AND IS FELT IN REAR CABIN OF AIRCRAFT.  REPLACED RIGHT ELEVATOR TAB HINGE FITTING IAW B737 AMM 27-31-31.

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