# SDR FDEA201508172591

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2015
- Submitted: August 17, 2015
- Operation: Air carrier
- Aircraft: [N631FE](https://openairdocs.org/aircraft/N631FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48454
- Aircraft time: 940 hours, 17,484 cycles
- System (JASC): [5744 · Wing, Control Surface Attach Fittings](https://openairdocs.org/jasc/5744)
- Part: Hinge
- Part number: ARC050213
- Condition: Corroded
- Location: Lt Wing
- Stage of operation: IN
- How discovered: U
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201508172591

## Discrepancy

LEFT WING OTBD FLAP, INBD FWD HINGE, WING SIDE, BARREL NUT HOLE SURFACE CORROSION.  CORROSION REWORKED IAW CMM 57-44-08.  EXISTING THICKNESS UPPER 0.376", LOWER 0.376", MATERIAL REMOVED UPPER 0.007", LOWER: 0.007", REMAINING THICKNESS UPPER 0.369", LOWER 0.369".  REPAIR SHIM FABRICATED & INSTALLED IAW CMM 57-44-08.  REPAIR EVALUATED & FOUND BARREL NUT MATING SURFACE REMAINING THICKNESS OF UPPER 0.369" & LOWER 0369", WITHIN LIMIT BASED THE DIFFERENCE BETWEEN DWG LIMIT & CMM MAX.  REWORKED LIMITS FOR BARREL NUT HOLE, MIN THICKNESS 0.3685".  REPAIR CLASSIFIED AS MINOR IAW GMM 6- 2-100.

---
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.