Service difficulty report · Panel · Boeing 747422

Difficulty date
July 7, 2011
Submitted
July 29, 2011
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Aircraft time
84,623 hours, 10,197 cycles
Engine
Pwa PW4056
Part
Panel
Condition
Cracked
Location
Rt Wing
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

FOUND 10 INCH CRACK ON NR 14 UPPER WING LEADING EDGE PANEL. CRACK STARTS AT OUTBOARD AFT CORNER AREA OF PANEL. PANEL IS THIRD FIXED UPPER LEADING EDGE PANEL INBOARD OF NR 4 ENG. ACCOMPLISHED 250 DEG OVER LAY REPAIR, NEEDS CONDUCTIVE COATING, PRIMER AND TOPCOAT. COMPLETED APPLICATION OF PRIMER CONDUCTIVE COATING AND TOP COAT.