Service difficulty report · Frame · Boeing 747200

Difficulty date
May 6, 2006
Submitted
June 2, 2006
Operation
Air carrier
Aircraft
N521UP
Make and model
Boeing 747200
Aircraft serial
21944
Aircraft time
77,205 hours, 18,330 cycles
Part
Frame
Part number
65B931298
Condition
Cracked
Location
Nr 3 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 3 PYLON REAR MOUNT BULKHEAD FOUND CRACKS AT BOTH SIDES FWD AND AFT FRAME WEB. CRACK LENGTH 1 INCH TO 3.5 INCH. NR 3 PYLON REAR MOUNT BULKHEAD FWD AND AFT BOTH SIDES FRAME WEB REPLACED AND REPAIRED AS PER RS R54-53-35482 AND ENGINEERING FILE NUMBER 747-54-20054.

More about the Boeing 747-200