# SDR DALA2020020640942

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2020
- Submitted: February 6, 2020
- Operation: Air carrier
- Aircraft: [N549US](https://openairdocs.org/aircraft/N549US), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26496
- Aircraft time: 74,395 hours, 27,050 cycles
- System (JASC): [5321 · Fuselage Floor Panel](https://openairdocs.org/jasc/5321)
- Part: Floorbeam
- Condition: Corroded
- Location: Bs 1661
- 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/DALA2020020640942

## Discrepancy

(AIRCRAFT 5649, L/P 1474517) CORROSION ON TOP OF MAIN CABIN FLOOR BEAM BS. 1661 LBL. 57.0. CORRECTIVE ACTION: REMOVED CORROSION AT MAIN CABIN FLOOR BEAM STA 1661 LBL 57, FOUND AREA OUT OF LIMITS WITH 100% MATERIAL LOSS IAW B757 SRM 53-00-51. CUT OUT DAMAGED AREA OF FLOOR BEAM, DIMENSTIONS 26 1/4" AND REPAIRED FLOOR BEAM IAW B757 SRM 53-00-51-2R REPAIR 8 FIG 201.

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