# SDR UALA2013031301478

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2013
- Submitted: March 20, 2013
- Operation: Air carrier
- Aircraft: N521UA
- Make and model: Boeing 757222
- Aircraft serial: 24891
- Aircraft time: 73,083 hours, 27,199 cycles
- Engine: Pwa PW2037
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Crease Beam
- Condition: Corroded
- Location: Bs 1661-1681
- 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/UALA2013031301478

## Discrepancy

BS 1661 - 1681 RBL 55, CREASE BEAM HAS CORROSION.   INSTALLED NEW CREASE BEAM REF DWG 146N5230, SRM 51-40-02, AND SRM 53-00-04.  MAJOR REPAIR.

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