Service difficulty report · Frame · Boeing 747200

Difficulty date
November 9, 2001
Submitted
November 16, 2001
Operation
Air carrier
Aircraft
N521UP
Make and model
Boeing 747200
Aircraft serial
21944
Aircraft time
66,302 hours, 16,182 cycles
Part
Frame
Condition
Cracked
Location
Nr 4 Pylon
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

INSPECTION TYPE:C NR 4 PYLON NAC STA 221.94 ENG AFTER MOUNT BULKHEAD REAR O/B SIDE LOWER PORTION SUPPORT FRAME FOUND CRACK FROM REAR EDGE TO FWD ABOUT .75 INCH LONG APPROX AS MARKED AFTER THE AREA CLEAN UP. NR 4 PYLON NAC STA 221.94 O/B SIDE FRAME REPLACED AS PER SRM 51-10-01 PG 8.

More about the Boeing 747-200