Service difficulty report · Support Beam · Boeing 747428

Difficulty date
June 28, 2019
Submitted
August 9, 2019
Operation
Air carrier
Aircraft
N952CA
Make and model
Boeing 747428
Aircraft serial
25238
Aircraft time
98,262 hours, 14,774 cycles
Engine
Ge CF680C2B1F
Part
Support Beam
Part number
65B1161415
Condition
Damaged
Location
Lt Wing Te
Part time
98,262 hours, 14,774 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

LEFT WING TRAILING EDGE SUPPORT BEAM UPPER CHORD P/N 65B11614-15, INBOARD END AT APPROXIMATE WBL 130 HAS 3 EACH ELONGATED HOLES AND CORROSION ON UPPER SURFACE. REMOVED CORROSION AND REMAINING MATERIAL THICKNESS FOUND TO BE WITHIN LIMITS PER B747-400SF SRM 57-51-13-1A-1. REPAIRED ELONGATED HOLES IN ACCORDANCE WITH FLIGHT VEHICLES CONSULTING INC. ENGINEERING ORDER NUMBER 19227.