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
Rotated
Location
Nr 3 Pylon
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

NR 3 PYLON UPPER LINK TO WING ATTACH FITTING HAS ONE FASTENER THAT HAS ROTATED INBD VERTICAL FASTENER MOST AFT. FASTENER REMOVED, HFEC OF HOLE AND NO DEFECTS NOTED. BOLT REINSTALLED WITH RETAINED BOLT AND NEW NUT.