Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
June 9, 2023
Submitted
July 6, 2023
Operation
Air carrier
Aircraft
N287WN
Make and model
Boeing 7377H4
Aircraft serial
32537
Aircraft time
52,678 hours, 31,753 cycles
Part
Stiffener
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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

CRACK ON ANGLE LOCATED INTERNAL STRUCTURE BTW 907 TO BS 927 FWD POSITION BTW STR 26R TO STR 27R AFT CARGO COMPARTMENT 2023-378093CRACK ON STIFFENER LOCATED INTERNAL STRUCTURE BTW 907 TO BS 927 FWD POSITION BTW STR 26R TO STR 27R AFT CARGO COMPARTMENT<[01] REPLACED STIFFENER LOCATED INTERNAL STRUCTURE BTW 907 TO BS 927 FWD POSITION BTW STR 26R TO STR 27R AFT CARGO COMPARTMENT IAW B737-700 SRM 51-10-02 ITEM 9 AND DWG 147A7221 SHEET 24 REV - SEE INDIVIDUAL SIGN OFF BELOW;[02] JOB COMPLETED

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