Service difficulty report · Intercostal · Boeing 7377CT

Difficulty date
August 12, 2021
Submitted
September 21, 2021
Operation
Air carrier
Aircraft
N570WN
Make and model
Boeing 7377CT
Aircraft serial
33657
Aircraft time
58,630 hours, 29,455 cycles
Part
Intercostal
Condition
Cracked
Location
Fuselage
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

MAIN CABIN FWD WET AREA FLOOR STRUCTURE INTERCOSTAL CRACKED BETWEEN BS-344AND BS 328 LBL-46 ; / [01] REMOVED STRUCTURE INTERCOSTAL AT MAIN CABIN FWD WET AREA BETWEEN STA 328- STA 344 LBL 46. REF: SRM 51-40-02-0G-0; [02] LOCATED AND DRILLED NEW INTERCOSTAL AS PER SRM 51-40-05-0G-0.; [03] OK TO INSTALL; [04] INSTALLED NEW INTERCOSTAL AT MAIN CABIN FWD WET AREA STA 328 TO STA 344 LBL 46 AS PER B737-700 SRM 51-40-02-0G-0 AND DRWG # 141A5400 .; [05] VERIFIED 4

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