Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
August 4, 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
Floorbeam
Condition
Cracked
Location
Bs 328
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 FLOOR BEAM STA 328 RBL-20' FASTENER HOLE CRACKED ; / [01] INSTALLED EWIS PROTECTION AT CABIN FROM STA 312 TO STA 344 BETWEEN RBL-60 TO LBL 20 REF B737-7 AMM 20-60-07-913-801; [02] VERIFIED WORK PERFORMED; [03] REMOVED INTERCOSTAL AT CABIN BETWEEN STA 328 TO STA 344 RBL-26 REF B737-7 SRM 51-40-02-0G-0; [04] RDMOVED 2EA FLOOR SUPPORT AT CABIN BETWEEN STA 312 TO STA 328 RBL-9.5 AAND 30.5 REF B737-7 SRM 51-40-02-0G-0; [05] REMOVED 5EA ANGLES AT CABIN STA 328 BETWEEN RBL-0 TO RBL55 REF B737-7 SRM 51-40-02-0G-0; [38] REMOVED CABLE/FOD PROTECTION; REF. BOEING SOPM 20-30-03; [39] INSTALLED T-CHORD REPAIR AT CABIN FLOOR BEAN STA 328 BETWEEN RBL-1.100' TO RBL66 REF B737-7 SRM 53-10-51-2R-7 REPAIR 7; [40] VERIFIED REMOVED PROTECTION AT CABIN FLOOR CONTROL CABLES WFA;WFB;AA;AB;EA;EB;RA;RB;STA AND STB; (10 EA); [41] INSPECTED REPAIR AREA

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