Service difficulty report · Duct · Boeing 7472D7B

Difficulty date
February 5, 2011
Submitted
February 23, 2011
Operation
Air carrier
Aircraft
N523MC
Make and model
Boeing 7472D7B
Aircraft serial
21782
Aircraft time
102,790 hours, 20,995 cycles
Engine
Ge CF650*
Part
Duct
Condition
Damaged
Location
Nr 2 Engine
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

ENGINE NR 2 OUTBOARD T/R HALF HI BYPASS "C" DUCT INTERNAL WALL WITH DELAMINATION AND MISSING SKIN MATERIAL(REMOVED SECTION OF DAMAGED SKIN AND PREPARED AREA FABRICATED DOUBLER FROM 2024-T3 0.063 PO 10024219 LOCATED, TRIMMED, DRILLED, PRIMED AND INSTALLED AND SEALED EDGES IAW ENG MANUAL EM 78-32-03 REPAIR 028.

More about the Boeing 747-2D7B