Service difficulty report · Bulkhead · Boeing 75724APF

Difficulty date
January 22, 2009
Submitted
February 19, 2009
Operation
Air carrier
Aircraft
N440UP
Make and model
Boeing 75724APF
Aircraft serial
25471
Aircraft time
17,097 hours, 11,149 cycles
Part
Bulkhead
Part number
311N50232
Condition
Cracked
Location
Nr 2 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 2 PYLON MID BULKHEAD TO STRUT TO UPPER LINK FITTING 2 HOLES HAVE CRACK INDICATIONS (HFEC) (LOCATIONS MARKED NO DOT). HFEC SOTO PROBE IAW NTM 757-51-00-16 PT6 AND 17 IND CRACK BOTH FWD AND AFT SLEEVE BOLT HOLE INBD AND OTBD LOC. NO CRACK FOUND IN STEEL UP LINK STRUT HOLE. HFEC UP SPAR FITTING NDT 51-00-16 PT6 IND CRACK IN HOLES. HFEC UP LINK STRUT HOLE IAW NDT51-00-17 PT6 IND NO CRACK. REMOVED 4 HOLES LOC MID BLKHEAD TO.765 INCH IAW EA757-5454-27-1833 HFEC IAW NTM51-00-16PT 6. NO DEFECTS NOTED.

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