Service difficulty report · Fitting · Boeing 747212B

Difficulty date
August 4, 2002
Submitted
August 14, 2002
Operation
Air carrier
Aircraft
N526UP
Make and model
Boeing 747212B
Aircraft serial
21937
Aircraft time
79,834 hours, 15,049 cycles
Part
Fitting
Condition
Cracked
Location
Bs 1480
Stage of operation
IN
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 LH BS 1480 B/H MOD HOLE #14 CRACK FOUND AT SPLICE PLATE AFT SURFACE RUNNING UP APPROX 1/16" LONG. REFER ATTACH SKETCH. (STR L33 TO L34) LH BS 1480 B/H SPLICE PLATE BOLT HOLE #14 REAMED TO 0.500" AND BUSHING INSTALLED AS PER SB 747-53A2390 R1 CRACK TEST DONE AS PER NTM 51-00-00 FIG 4 NIL CRACK REVEALED.

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