Service difficulty report · Skin · Boeing 747230B

Difficulty date
July 17, 2002
Submitted
July 26, 2002
Operation
Air carrier
Aircraft
N508MC
Make and model
Boeing 747230B
Aircraft serial
21644
Aircraft time
88,570 hours, 16,251 cycles
Part
Skin
Part number
65B9405314
Condition
Worn
Location
Pylon
Part time
88,570 hours, 16,251 cycles
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

DURING CURRENT (C) CHECK, INSPECTION OF NR 3 PYLON ACCESS PLATE (473AR) CUTOUT, FOUND HEAVY WEAR AT ONE OF THE LATCH POSITIONS. WEAR AREA TRIMMED AWAY FROM SKIN AND DOUBLER. DOOR ACCESS SIZE INCREASED ON RETAINING LIP. FABRICATED REPAIR DOUBLER AND FILLERS. ALL HOLES AND ACCESS CUTOUT NDT INSPECTED FOR CRACKS. NO CRACKS FOUND. SKIN AND REAIR FILLERS BONDED TO EXISTING STRUCTURE PER SRM. NR 1 FASTENERS INSTALLED IAW SRM. AREA SEALED IAW SRM WITH BMS SEALANT.