# SDR DALA2019092505584

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2019
- Submitted: September 30, 2019
- Operation: Air carrier
- Aircraft: [N539US](https://openairdocs.org/aircraft/N539US), registered now
- Make and model: Boeing 757251
- Aircraft serial: 26486
- Aircraft time: 71,392 hours, 26,976 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Corroded
- Location: Fuselage
- 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/DALA2019092505584

## Discrepancy

SHIP 5639 PASSENGER CABIN L/H O/B MOP SILL (FLOOR SUPPORT) UPPER SURFACE IS CORRODED F.S 1020 TO F.S 1040 AT LBL 65. CORRECTIVE ACTION: REMOVED CORROSION ON PASSENGER CABIN L/H O/B MOP SILL (CREASE BEAM) IAW B757 SRM. AREA WITH MATT LOSS 100% TO BE OUT OF LIMITS IAW B757 SRM. CUT OUT DAMAGED IAW B757 SRM. FABRICATED AND INSTALLED REPAIR PARTS IAW B757 SRM. (1286009)

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