Service difficulty report · Intercostal · Boeing 737

Difficulty date
November 19, 2021
Submitted
April 27, 2022
Operation
Air carrier
Aircraft
N461WN
Make and model
Boeing 737
Aircraft serial
32465
Aircraft time
59,271 hours, 35,159 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

SUPPLEMENTAL INFORMATION: FWD CABIN WET AREA FLOOR INTERCOSTAL CRACKED @ LBL 45 BETWEEN STA 328 AND 344 ; / [01] REMOVED INTERCOSTAL DAMAGED IN REFERENCE. B-737 SRM 51-40-02-0G-0.; [02] LOCATED AND DRILLED HOLES IN THE NEW INTERCOSTAL IN REFERENCE B-737 SRM 51-40-02-0G-0 AT STA 328-344 LBL 45.; [03] VERIFIED NEW PART DRILL.<BR>OK TO INSTALL; [04] STAR INSTALLING HI LOCK IN REFERENCE. B737 SRM 51-40-02-0G-0.; [05] INSTALLED NEW INTERCOSTAL AT FWD WET AREA BETWEEN STA 328 AND STA 344 LBL 45 AS PER B737-700 SRM 51-40-02-0G-0 / 51-40-05-0G-0 AND DRWG # 141A5400 .; [06] VERIFIED PARTS AND MEASUREMENTS; [07] VERIFIED INSTALLATION