Service difficulty report · Floor Support · Boeing 7377H4

Difficulty date
August 1, 2021
Submitted
September 7, 2021
Operation
Air carrier
Aircraft
N449WN
Make and model
Boeing 7377H4
Aircraft serial
32469
Aircraft time
60,089 hours, 35,684 cycles
Part
Floor Support
Condition
Cracked
Location
Bs 344-360
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 FLOOR @ STA 344 - STA 360 BL 0 INTERCOSTAL CRACKED. (18-028) ; / [01] REMOVED FWD CABIN FLOOR INTERCOSTAL FROM STA 344-STA 360 BL-0 REF B 737-7 SRM 51-40-02-0G-0; [02] LOCATED AND DRILLED NEW INTERCOSTAL AT BL-0 BETWEEN STA 344-360 REF B737-7 SRM 51-40-05-0G-0; [03] VERIFIED WORK PERFORMED; [04] OK TOTREAT AND PRIME; [05] TREATED AND PRIME HOLES AT INTERCOSTAL REF B737-7 SRM 51 20-01-0G-0; [06] VERIFIED WORK PERFORMED; [07] OK TO INSTALL INTERCOSTAL; [08] INSTALLED NEW INTERCOSTAL AT FWD CABIN FLOOR BL-0 STA 344-360 REF B737-7 SRM 51-40-02-0G-0; [09] REMOVED AND REPLACED NEW FWD CABIN FLOOR INTERCOSTAL AT STA 344 TO STA 360 BL-0 REF B737-7 SRM 51-40-02-0G-0; [10] VERIFIED WORK PERFORMED

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