# SDR UALA2012091705231

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 2012
- Submitted: September 26, 2012
- Operation: Air carrier
- Aircraft: N554UA
- Make and model: Boeing 757222
- Aircraft serial: 26644
- Aircraft time: 71,947 hours, 21,462 cycles
- Engine: Pwa PW2037
- System (JASC): [5240 · Service Doors](https://openairdocs.org/jasc/5240)
- Part: Torque Tube
- Condition: Corroded
- Location: R4 Door
- 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/UALA2012091705231

## Discrepancy

MAIN CABIN R-4 DOOR INTERIOR LOWER CENTER LATERAL ARMING TORQUE TUBE, 3 EACH BEARINGS CORRODED.  REMOVED AND REPLACED LOWER ARMING TORQUE TUBE AND BELLCRANK ASSY AND REPLACED 3 EACH BEARINGS PER CMM 52-11-25 AND MM 20-10-02 AND FUNCTIONAL CHECK GOOD.

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