# SDR ERKR2015122100013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 2015
- Submitted: December 21, 2015
- Operation: Air carrier
- Filed by: [Marana Aerospace Solutions Inc, repair station ERKR675D](https://openairdocs.org/faa-repair-station/ERKR675D/marana-aerospace-solutions-inc.md) (OpenAirDocs)
- Aircraft: [N411SN](https://openairdocs.org/aircraft/N411SN), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48411
- Aircraft time: 70,733 hours, 13,844 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 7150T9151
- Condition: Corroded
- Location: Bs 1239
- Part time: 70,733 hours, 13,844 cycles
- 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/ERKR2015122100013

## Discrepancy

UNDER FLOOR PANEL 263BF, APPROX BS 1239, RBL 5 WING CENTER BOX CORRODED.  ADDITIONAL AREAS OF EXFOLIATION ON CTR WING UPPER SKIN LOCATED AT, RBL XCW=-15.5, -17, -20, 56.5 & -82.0 ALONG STRINGER 15 & XCW=-71.5 AT STRINGER 19 ALSO XCW=+4.0 STRINGER 15.

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