# SDR DALA1020745522

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2010
- Submitted: September 28, 2010
- Operation: Air carrier
- Aircraft: [N522US](https://openairdocs.org/aircraft/N522US), registered now
- Make and model: Boeing 757251
- Aircraft serial: 23616
- Aircraft time: 66,941 hours, 27,518 cycles
- Engine: Pwa PW2037
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 365
- 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/DALA1020745522

## Discrepancy

CORROSION ON CABIN FLOORBEAM UPPER CHORD AT STA 365 FROM RBL 63-BL'0'. BLENDED AREA DIM. L=5' W=2" D=.060" FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51, REMOVED OLD REPAIR IAW SRM 51-40-02. FAB, LOCATED, & DRILLED T-CHORD BEAM IAW SRM 51-40-05 & 53-00-51,  INSTALLED REPAIR UPPER CHORD AT STA 365RBL 0 TO RBL 63 IAW SRM 51-40-02 & SRM 53-00-51 REPAIR 3. RII COMPLETED.

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