Service difficulty report · Frame · Boeing 747212B

Difficulty date
January 1, 2006
Submitted
January 20, 2006
Operation
Air carrier
Aircraft
N520UP
Make and model
Boeing 747212B
Aircraft serial
21943
Aircraft time
80,484 hours, 17,793 cycles
Part
Frame
Part number
65B903082
Condition
Cracked
Location
Nr 4 Pylon
Stage of operation
IN
How discovered
9
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 I/B SIDE OF NAC STA 236 VERTICAL FRAME CRACKED, JUST FWD OF PYLON VALVE, CRACK LENGTH : 2.5". VERTICAL FRAME REPLACED AS PER SRM 51-10-01 P.9 AND INSTALLED AS PER SRM 51-30-02.

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