Service difficulty report · Fastener · Boeing 747422

Difficulty date
August 31, 2004
Submitted
December 15, 2004
Operation
Air carrier
Aircraft
N107UA
Make and model
Boeing 747422
Aircraft serial
26900
Aircraft time
23,943 hours, 3,093 cycles
Engine
Pwa PW4056
System (JASC)
1430 · Fasteners
Part
Fastener
Condition
Spinning
Location
Rt Wing
Stage of operation
IN
How discovered
V
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

RT WING UPPER SURFACE ENG NR 4 NACELLE UPPER LINK WING FITTING HAS 1 SPINNING FASTENER WS 1168. FASTENER REMOVED. HFEC OF HOLE, NO DEFECTS NOTED. INSPECTION OF STACK UP ACCOMPLISHED WITH NO DEFECTS NOTED. BOLT REINSTALLED WITH RETAINED BOLT AND NEW NUT.