# SDR FDEA201204101341

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2012
- Submitted: April 10, 2012
- Operation: Air carrier
- Aircraft: N577FE
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48469
- Aircraft time: 60,991 hours, 13,172 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Skin
- Part number: APB74471
- Condition: Corroded
- Location: Bs 1219-1239
- 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/FDEA201204101341

## Discrepancy

MAIN DECK UPPER CARGO COMPARTMENT, UNDER FLOOR AT CENTER WING TANK BETWEEN   STATION 1219 TO STATION 1239, "X" = -27.5 FOUND SURFACE CORROSION AT FASTENERS AREA.  CORROSION REMOVED IAW SRM 51-21-01, REV 49.  ORIGINAL MATERIAL THICKNESS =   0.175", REMAINING THICKNESS = 0.145", MATERIAL REMOVED = 0.030" AND FOUND ACCEPTABLE IAW EA 1-5730-160022.  REPAIR CLASSIFIED AS MINOR GMM 6-2-100, REV 114.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.