Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
July 13, 2025
Submitted
August 15, 2025
Operation
Air carrier
Aircraft
N902WN
Make and model
Boeing 7377H4
Aircraft serial
36615
Aircraft time
57,234 hours, 33,409 cycles
Part
Floorbeam
Condition
Corroded
Location
Zone 200
Stage of operation
IN
How discovered
V
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

CORROSION ON FLOORBEAM AT BS 328 RBL 25 WL 208<[01] NO ALLOWABLE DAMAGE PERMITTED UNDER SEAT TRACK ATTACHMENT PER SRM 737-700 SRM 53-10-51-1A-1 ALLOWABLE DAMAGE 1 PAR.1.B(2) ON BS328 FLOOR BEAM; THEREFORE DAMAGE TO BE REPAIRED PER SRM 53-10-51-2R-7 REPAIR 7 ALTERNATIVE 2 AND MAINTENANCE WAS ACCOMPLISHED ON STEPS 1-13;[02] ALL STEPS SIGNED COMPLETE.;[03] ALL STEPS SIGNED COMPLETE;[04] ALL STEPS SIGNED COMPLETE;[05] ENTERED IN ERROR STEP 2.

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