# SDR UIEA99053

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N507MC](https://openairdocs.org/aircraft/N507MC), registered now
- Make and model: Boeing 747230B
- Aircraft serial: 21380
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar Web
- Condition: Corroded
- Location: Center Wing
- Part time: 85,155 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA99053

## Discrepancy

LEFT WING GEAR WHEEL, SPOT CORROSION FOUND ON CENTER TANK REAR SPAR WEB BEHIND THE BS 1241 LT BULKHEAD FITTING.  REF:  AD 98-26-23 AND SB 747-57-2263R2.  CORROSION REMOVED IAW SB 747-57 2263 REV R2 AND FAX KLM TLS 99-0008H.  FORM 8110-3 ISSUED.

---
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.