Service difficulty report · Skin · Boeing 747230B

Difficulty date
June 22, 2005
Submitted
June 29, 2005
Operation
Air carrier
Aircraft
N509MC
Make and model
Boeing 747230B
Aircraft serial
21221
Aircraft time
113,433 hours, 21,571 cycles
Part
Skin
Condition
Cracked
Location
Nr 4 Nacelle
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

CRACK AT NR 4 NACELLE STRUT TOP FORWARD CORNER OF PRECOOLER EXHAUST CUTOUT. PRECOOLER EXHAUST CUTOUT REPAIRED PER BOEING INSTRUCTIONS 1-1MNS9D AND FAA FORM 8100-9.