Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
November 9, 2021
Submitted
December 20, 2021
Operation
Air carrier
Aircraft
N409WN
Make and model
Boeing 7377H4
Aircraft serial
27896
Aircraft time
67,505 hours, 40,058 cycles
Part
Intercostal
Condition
Cracked
Location
Cabin Floor
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

FWD CABIN WET AREA FLOOR SUPPORT INTERCOSTAL CRACKED BETWEEN STA 277 AND 295.5 ; BL-0 MKD DOT ; / [01] REMOVED INTERCOSTAL AT FWD WET AREA;BET.STA 277 TO STA 295.5;BL 0.PER B 737-700 SRM 51-40-02-0G-0.; [02] LOCATED AND DRILL NEW PART.PER B 737-700 SRM 51-10-02-0G-0; [03] VERIFIED STEP 1 AND 2. OK TO INSTALL NEW FLOOR SUPPORT INTERCOSTAL.; [04] UPDATED MEASUREMENTS.; [05] INSTALLED NEW INTERCOSTAL AT FWD WET AREA BETWEEN STA 277 AND STA 295.5 BL0 PER B737-700 SRM 51-40-02-0G-0.; [06] VERIFIED STEP 5.

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