SDR UIEA200400062

Service difficulty report · Bushing · Boeing 747243B

Difficulty date: April 22, 2004
Submitted: May 18, 2004
Operation: Air carrier
Aircraft: N517MC
Make and model: Boeing 747243B
Aircraft serial: 23300
System (JASC): 5720 · Wing Miscellaneous Structure
Part: Bushing
Condition: Cracked
Location: Lt Wing
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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)