Service difficulty report · Intercostal · Boeing 7377BD

Difficulty date
February 25, 2023
Submitted
March 30, 2023
Operation
Air carrier
Aircraft
N556WN
Make and model
Boeing 7377BD
Aircraft serial
33936
Aircraft time
37,398 hours, 21,958 cycles
Part
Intercostal
Condition
Cracked
Location
Zn 200 Fus Top
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 PASSENGER CABIN FLOOR INTERCOSTAL AT BS 344+9 BL 0.<[01] REMOVED INTERCOSTAL ON PASSENGER CABIN FLOOR AT BS 344 TO BS 360 IAW SRM 51-40-02-0G-0;[02] LOCATED AND DRILLED NEW INTERCOSTAL ON PASSENGER CABIN FLOOR AT BS 344 TO BS 360 BL 0 IAW SRM 51-40-05-0G-0; DWG 141A5410 REV:B; OK TO INSTALL;[03] VERIFIED CORRECTIVE ACTION 2.<BR>OK TO INSTALL;[04] INSTALLED NEW INTERCOSTAL ON PASSENGER CABIN FLOOR AT BS 344 TO BS 360 BL 0 IAW SRM 51-40-02-0G-0; AND DWG 141A5400; CARD IS COMPLETED;[05] VERIFIED CORRECTIVE ACTION 4 AND MEASUREMENT TABLE.

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