Service difficulty report · Frame · Boeing 747121

Difficulty date
March 8, 2001
Submitted
March 26, 2001
Operation
Air carrier
Aircraft
N683UP
Make and model
Boeing 747121
Aircraft serial
20353
Part
Frame
Condition
Cracked
Location
Bulkhead
Stage of operation
IN
How discovered
E
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:C6 CRACK REVEALED ON R/H BS 1000 BULKHEAD CHORD VERTICAL FLANGE AT LWR TENSION BOLT HOLE AT S-38 RT AREA BY APPROX. 0.050 INCH LONG AS MARKED. RT BS 1000 BULKHEAD CHORD VERTICAL FLANGE AT LWR TENSION BOLT HOLE CRACK CLEARED. HFEC INSPECTED SATIS. NEW BOLT INSTALLED PER RS#R53-42-34640.