# SDR UALA2011040801698

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2011
- Submitted: April 20, 2011
- Operation: Air carrier
- Aircraft: N118UA
- Make and model: Boeing 747422
- Aircraft serial: 28811
- Aircraft time: 48,730 hours, 5,927 cycles
- Engine: Pwa PW4056
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Damaged
- Location: Rt Wing L/E
- 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/UALA2011040801698

## Discrepancy

RIGHT WING, FIXED LEADING EDGE PANEL, AFT EDGE DIRECTLY ABOVE NUMBER THREE ENGINE, HAS 2 RIVETS SHEARED AND PROTRUDING.  RIVETS ARE NEXT TO EACH OTHER.  INSTALLED 2 EA BLIND RIVETS REF MM.  REQUIRES RE-CHECK EVERY AK AND PERMANENT REPAIR AT CK MF6728 OPENED TO RE-CHECK EVERY AK.  REPLACED THE BLIND RIVETS WITH SOLID RIVETS PER AMM.

---
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.