# SDR DALA1036625519

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2010
- Submitted: December 28, 2010
- Operation: Air carrier
- Aircraft: N519US
- Make and model: Boeing 757251
- Aircraft serial: 23207
- Aircraft time: 74,471 hours, 30,609 cycles
- Engine: Pwa PW2037
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Sill
- Condition: Corroded
- Location: Bs 365-377
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1036625519

## Discrepancy

DURING M-CHECK, FOUND L1 DOOR SILL WEB TOP SURFACE SKIN CORRODED INCLUDING ADJACENT FLOORBEAM AT STA 365 & 377.  CORROSION WAS ON FLOOR SUPPORTS NOT ON WEB.  REMOVED CORROSION AREA IAW SRM 51-10-02 OUT OF LIMITS.  RECEIVED NEW MATERIAL SUPPORT LOCATED AND DRILLED AND INSTALLED FLOOR SUPPORT IAW SRM 51-40-02.

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