Service difficulty report · Panel · Boeing 747422

Difficulty date
December 4, 2012
Submitted
December 7, 2012
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Aircraft time
89,974 hours, 10,738 cycles
Engine
Pwa PW4056
Part
Panel
Condition
Cracked
Location
Lt 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

UNDERSIDE LEADING EDGE ABOVE NR 2 ENGINE PYLON (PANEL) HAS CRACK GREATER THAN 1 INCH. REPAIRED REF ECRA 5740- 02327. STOP DRILL MUST BE CHECKED EVERY "A" CK AND REPAIRED AT "D04" CK. PERFORMED HFEC. NO CRACK. MADE A REPAIR PART AND INSTALLED PER ECRA5720-02355.