Service difficulty report · Floor Support · Boeing 7377BD

Difficulty date
November 29, 2022
Submitted
January 9, 2023
Operation
Air carrier
Aircraft
N7742B
Make and model
Boeing 7377BD
Aircraft serial
33928
Aircraft time
51,537 hours, 27,573 cycles
Part
Floor Support
Condition
Cracked
Location
Bs 312-328 Lbl48
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

MAIN CABIN FWD WET AREA BETWEEN STA 312-328 LBL 48' INTERCOSTAL CRACKED<[01] REMOVED INTERCOSTAL AT MAIN CABIN STA.312-328 LBL 48' PER. REF. SRM 51-40-02-0G-0;[02] DRILLING NEW INTERCOSTAL IN PLACE STA.312-348 LBL.48' PER. REF. SRM 51-40-05-0G-0;[03] VERIFIED STEP 1;[04] VERIFIED STEP 2. OK TO INSTALL INTERCOSTAL;[05] INSTALLED NEW INTERCOSTAL AT MAIN CABIN FWD. WET AREA BETWEEN STA.312-328 LBL. 48' PER REF. SRM. 51-40-02-0G-0;[06] VERIFIED STEP 5;[07] CORRECTION ON STEP #5: INSTALLED NEW INTERCOSTAL AT MAIN CABIN FWD. WET AREA BETWEEN STA.312-328 LBL. 48' PER REF. SRM. 51-40-02-0G-0 & DWG. 141A5400.;[08] VERIFIED STEP 7

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