Service difficulty report · Frame · Boeing 747121

Difficulty date
September 10, 2001
Submitted
September 26, 2001
Operation
Air carrier
Aircraft
N681UP
Make and model
Boeing 747121
Aircraft serial
19661
Aircraft time
97,510 hours, 25,124 cycles
Part
Frame
Part number
654116662413
Condition
Worn
Location
Nr 2 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

INSPECTION TYPE:C NR 2 ENG FWD BHD FOR ENG FRONT MOUNT ATTACH, THE I/B CHORD LOWER SECTION HAS A MINOR DENT MARK WHICH WAS PREVIOUSLY SMOOTHED OUT. NDT INSP FOUND THE THICKNESS OF THE CHORD WORN OUT 25% APPROX IT'S OUT OF SRM LIMIT 54-10-01 FIG 1. THE FWD ENGINE MOUNT ATTACHED BHD CHORD WAS REPLACED IAW SRM 51-10-01 PG 8. THE ENGINE FWD MOUNT FTGS ( I/B AND O/B ) WERE REFITTED PER MM 20-51-01 AND THE ANTI-ICING DUCT WAS REFITTED AND LEAK CHK CARRIED OUT PER MM 30-21-06.