# SDR UIEA200400062

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2004
- Submitted: May 18, 2004
- Operation: Air carrier
- Aircraft: [N517MC](https://openairdocs.org/aircraft/N517MC), registered now
- Make and model: Boeing 747243B
- Aircraft serial: 23300
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Bushing
- Condition: Cracked
- Location: Lt Wing
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200400062

## Discrepancy

FOUND LEFT WING WALKING BEAM SUPPORT FITTING ASSEMBLY.  FORWARD BEARING HOUSING OUTBOARD UPPER/FWD BOLT HOLE LOCATION ON REAR SPAR STIFFENER WAS FOUND WITH A CRACKED BUSHING HOLE AND BUSHING WAS ALSO FOUND WORN.  CRACKED HOLE REPAIRED AS PER SB 747-57-2226 REV 6.  CRACKED HOLE REAMED TO REMOVED CRACK.  HOLE HFEC INSPECTED AND COLD WORKED TO .748 INCH AND NEW BUSHING INSTALLED.  (M)

---
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.