Service difficulty report · Intercostal · Boeing 737*

Difficulty date
February 16, 2022
Submitted
March 21, 2022
Operation
Air carrier
Aircraft
N460WN
Make and model
Boeing 737*
Aircraft serial
32464
Aircraft time
58,773 hours, 34,967 cycles
Part
Intercostal
Condition
Cracked
Location
Fwd Cabin
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 @ BL-0 BETWEEN STA 277 AND STA 294.5 MKD DOT / [01] REMOVED FWD CABIN WET AREA FLOOR SUPPORT INTERCOSTAL CRACKED @ BL-0 BETWEEN STA 277 AND STA 294.5 ;IN REF B737-700 SRM 51-40-02-0G-0<BR><BR> HELP \ LOG OUT \ FREDDY MESA (SOUTHWEST AIRLINES);[02] LATE ENTRY: INSTALLED EWIS AND F.O.D PROTECTION AREA AT FWD CABIN WET AREA FLOOR SUPPORT INTERCOSTAL CRACKED @ BL-0 BETWEEN STA 277 AND STA 294.5 ;IN REF B737-700 AMM 20-60-07;[03] LATE ENTRY: VERIFIED 2;[04] VERIFIED 1. OK TO DRILL FASTENER'S HOLES AT RECEIVED INTERCOSTAL;[05] DRILLED NEW HOLES AT FWD CABIN WET AREA FLOOR SUPPORT INTERCOSTAL CRACKED @ BL-0 BETWEEN STA 277 AND STA 294.5 ;IN REF B737-700 SRM 51-40-05-0G-0;[06] VERIFIED STEP 5. OK TO TREAT AND PRIME HOLES;[07] TREATED AND APPLIED PRIMER AT ALL NEW HOLES FWD CABIN WET AREA FLOOR SUPPORT INTERCOSTAL CRACKED @ BL-0 BETWEEN STA 277 AND STA 294.5 ;IN REF B737-700 SRM 51-20-01-0G-0;[08] VERIFIED 7. OK TO INSTALL NEW INTERCOSTAL;[09] MIXED TIME PRC 02-23-22 12:01 P.M; INSTALLED FLOOR SUPPORT INTERCOSTAL IN REF BB737-700 SRM 51-40-02-0G-0 AND VERIFIED SQUEEZE-OUT AT 02-23-22 TIME 1:00 P.M IN REF SOPM 20-50-19;[10] VERIFIED 9;[11] C/W