# SDR FDEA201809112448

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2018
- Submitted: September 11, 2018
- Operation: Air carrier
- Aircraft: [N903FD](https://openairdocs.org/aircraft/N903FD), registered now
- Make and model: Boeing 757-2B7
- Registry model: [Boeing 757-2B7](https://openairdocs.org/model/boeing-757-2b7) (OpenAirDocs)
- Aircraft serial: 27124
- Aircraft time: 55,781 hours, 25,348 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Fuselage
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201809112448

## Discrepancy

CORROSION ON INTERCOSTAL AT BS 1020 RBL 0 - RBL25. CORROSION ON INTERCOSTAL FOUND TO BE OUTSIDE OF LIMITS IAW SRM 53-00-04-1A FIG 101 DETAIL II REV 124. ORIGINAL MATERIAL GAUGE= 0.050"  DEPTH OF BLENDOUT= 0.012" MAX ALLOWABLE= 0.005". FABRICATED AND INSTALLED NEW INTERCOSTAL IAW SRM: 51-40-02 REV 124, GMM 7-0-1001 REV 150 AND DRAWING 144N5005 SHEET 5.

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