# SDR 08FDEA01088

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2008
- Submitted: March 21, 2008
- 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: 47,097 hours, 19,245 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 146N53993
- Condition: Corroded
- Location: Zone 100
- 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/08FDEA01088

## Discrepancy

AFT PIT, LOWER FLANGE OF INTERCOSTAL AT STA 1402, RBL 2.90 IS CORRODED.  REMOVED CORROSION, L=3.9", W= .75", D= .012", ORIGINAL MATERIAL THICKNESS WAS .040".  INTERCOSTAL FOUND TO BE OUT OF LIMITS IAW SRM 53-00-04, FIG 101, DETAIL II LIMITS.  REMOVED INTERCOSTAL IAW SRM 51-40-02.  FABRICATED REPLACEMENT INTERCOSTAL ON TRAVELER NR T8/72622 HEAT TREATED TO T6 IAW SRM 51-10-02.  INSTALLED REPLACEMENT INTERCOSTAL IAW SRM 51-40-02.  TREATED AND PRIMED AREA IAW SRM 51-20-01.  TOP COATED AREA IAW AMM 51-21-00-7.

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