Service difficulty report · Structure · Boeing 747422

Difficulty date
July 18, 2012
Submitted
July 20, 2012
Operation
Air carrier
Aircraft
N182UA
Make and model
Boeing 747422
Aircraft serial
25279
Aircraft time
88,004 hours, 10,643 cycles
Engine
Pwa PW4056
Part
Structure
Condition
Damaged
Location
Thrust Reverser
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NR 2 ENGINE INBOARD THRUST REVERSER HALF LOWER FWD COWL FLANGE, WHERE RUB STRIP ATTACHES HAS AN AREA WORN 18 INCHES LONG AND A DEPTH HALF THE THICKNESS OF THE FLANGE AND .250 WIDE. REMOVED DAMAGED FLANGE APPROX 27.125 LONG AND 10 INCHES UP FROM BOTTOM.