Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
June 27, 2024
Submitted
July 30, 2024
Operation
Air carrier
Aircraft
N478WN
Make and model
Boeing 7377H4
Aircraft serial
33989
Aircraft time
66,062 hours, 39,438 cycles
Part
Stringer
Condition
Cracked
Location
Zone 100
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

CRACKED STRINGER MAIN DISTRIBUTION BAY BS535 S-23L WL150<[01] REMOVED DAMAGED SECTION OF STR-23L BS 535 TO 500D +11'' AND INSTALLED REPAIR PARTS; NEW SECTION OF STR-23L AND HAT CHANNEL BS 535 TO 500D+11' STR-23L. IAW SRM 53-00-03-2R-1 PAR. 4 A-L. AND DWG 143A3210 REV.B;143A0060 REV.A.;[02] VERIFIED CORRECTIVE ACTION;[03] VERIFIED CORRECTIVE ACTION

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