Service difficulty report · Angle · Boeing 747123

Difficulty date
August 4, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N156UA
Make and model
Boeing 747123
Aircraft serial
20105
Engine
Pwa JT9D7A
Part
Angle
Part number
65B913331
Condition
Cracked
Location
Nr 1 Pylon
Stage of operation
IN
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

WHILE ACCOMPLISHING AD97-12-03, CRACKS WERE FOUND ON THE 65B91333-1 AND -2 ANGLES WHICH ATTACH TO THE CANTED WEB COMMON TO THE AFT VERTICAL AND THE UPPER HORIZONTAL WEBS. THESE ANGLES ARE NOT PART OF THE FITTING INSPECTION REQUIREMENTS BUT ARE ADJACENT TO THEM. REPAIR WILL BE ACCOMPLISHED PER SRM 54-40-03.