# SDR FDEA201109193959

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 2011
- Submitted: September 21, 2011
- Operation: Air carrier
- Aircraft: [N939FD](https://openairdocs.org/aircraft/N939FD), registered now
- Make and model: Boeing 757-23A
- Registry model: [Boeing 757-23A](https://openairdocs.org/model/boeing-757-23a) (OpenAirDocs)
- Aircraft serial: 24528
- Aircraft time: 57,402 hours, 18,928 cycles
- System (JASC): [5710 · Wing Main, Frame Structure](https://openairdocs.org/jasc/5710)
- Part: Shim
- Part number: 112N70242
- Condition: Loose
- Location: Zone 500
- 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/FDEA201109193959

## Discrepancy

LT WING BETWEEN OTBD NAC FITTING AND LOWER WING SKIN FOUND WITH SHIMS   MIGRATION AT WS 303.5.  SHIM MIGRATION DEFECT ON LT WING AT STA 303.5 REPAIRED IAW EA F-5740-152627 (AD 2004-12-07)- LT WING OTBD NAC ATTACH FITTING -SHIM MIGRATION. REPAIR IS CLASSIFIED AS MAJOR.

---
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.