Service difficulty report · Heat Shield · Boeing 747422

Difficulty date
July 22, 2012
Submitted
August 24, 2012
Operation
Air carrier
Aircraft
N177UA
Make and model
Boeing 747422
Aircraft serial
24384
Aircraft time
91,172 hours, 11,084 cycles
Engine
Pwa PW4056
Part
Heat Shield
Condition
Delaminated
Location
Thrust Reverser
Stage of operation
NR
How discovered
V
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 3 ENGINE OTBD THRUST REVERSER HEAT BLANKET DELAMINATED AND HAS HONEYCOMB EXPOSED. OTBD REVERSER REPLACED.