Service difficulty report · Duct · Boeing 747412

Difficulty date
August 30, 2022
Submitted
August 31, 2022
Operation
Air carrier
Aircraft
N471MC
Make and model
Boeing 747412
Aircraft serial
26557
Aircraft time
86,781 hours, 14,100 cycles
Engine
Pwa PW4056
Part
Duct
Part number
315T4014156A
Part serial
000032
Condition
Bulged
Stage of operation
IN
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

NO.2 ENG - RH C-DUCT INNER SURFACE BULGED & DELAMINATION REPLACEMENT