Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
June 8, 2021
Submitted
June 28, 2021
Operation
Air carrier
Aircraft
N298WN
Make and model
Boeing 7377H4
Aircraft serial
32543
Aircraft time
45,656 hours, 26,955 cycles
Part
Floorbeam
Condition
Cracked
Location
Bs 540 Rbl 2
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

MAI CABIN FLOOR SUPPORT BREAK CRACKED @ STA 540 RBL 2 ; / [01] REMOVED CABIN FLOOR PANELS @ STA 540 RBL2 FOR ACCESS AS PER B737-7 AMM 53-21-00-000-801; [02] VERIFIED PANEL REMOVAL; [03] REMOVED FLOOR SUPPORT BREAK DAMAGED AT STA. 540 RBL 2 PER REF .B-737 SRM 51- 40 -02-0G 0; [04] VERIFIED FLOOR SUPPORT AT STA.540 AND RBL 2 REMOVED; [05] OK TO INSTALL FLOOR AT STA 540 AND RBL 2; [06] INSTALLED MAIN CABIN FLOOR SUPPORT BREAK AT STA.540 RBL 2 PER REF.51-40-02-0G-0; [07] VERIFIED INSTALLATION OF CABIN FLR SUPPORT AT STA 540 RBL 2; [08] OK TO INSTALL PNLS 231UF AND 231XF REMOVED IN STEP 1; [09] INSTALLED FLOOR PANELS 231UF AND 231XF REMOVED IN STEP 1 PER REF B737-700 AMM 53-21-00-400-801; [10] REMOVED & REPLACED MAIN CABIN FLOOR SUPPORT BREAK @ STA.540;RBL 2.AS PER B737-7 SRM 51-40 02-0G-0;& DWG.143A5240.; [11] VERIFIED STEP 10

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