Service difficulty report · Forging · Boeing 747121

Difficulty date
July 14, 2000
Submitted
August 28, 2000
Operation
Air carrier
Aircraft
N691UP
Make and model
Boeing 747121
Aircraft serial
19641
Aircraft time
95,273 hours, 22,812 cycles
Part
Forging
Condition
Corroded
Location
Fuselage
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 44, CABIN WINDOW FORGINGS. CORROSION FOUND ON FORGING AT BS 200 TO BS 220 RT. FORGING REMOVED AND CORROSION CLEANED UP TO WITHIN LIMITS. CORROSION REMOVED IAW SRM 51-10-01 AND 56-20-01. DEPTH OF CORROSION REMOVED .005. FORGING REPROTECTED IAW SRM 51-10-02. FORGING RE-INSTALLED IAW SRM 51-30-02 AND QUERY NOTE 62/2000.