# SDR UIEA201000199

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2010
- Submitted: September 20, 2010
- Operation: Air carrier
- Aircraft: N497MC
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29258
- Aircraft time: 49,930 hours, 7,554 cycles
- Engine: Ge CF680C2B1F
- System (JASC): [5751 · Ailerons](https://openairdocs.org/jasc/5751)
- Part: Skin
- Condition: Damaged
- Location: Rt Wing Aileron
- 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/UIEA201000199

## Discrepancy

DURING D2C3 CHECK INSP BEING PERFORMED; DAMAGE WAS FOUND TO THE RT WING OTBD AILERON AT THE FOLLOWING LOCATIONS:  WBL 925.960 & WBL 995 - AFT SIDE LOWER SURFACE - DISBOND.   WBL 849.982 - AFT SIDE UPPER SURFACE - EROSION.  PERMANENT REPAIRS ACCOMPLISHED IAW THE CMM 57-51-91 PAGE 604 REV 17 IAW EGAT NRCS: 270 AND 272. THE REPAIRS ACCOMPLISHED IAW PART 1 ARE CATEGORY A AND WERE PERFORMED IAW CMM 57-51-91, PAGE 604, REV 17 IAW EGAT NRCS: 270 AND 272.  NO SUPPLEMENTAL INSP ARE REQUIRED.

---
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.