Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
March 30, 2023
Submitted
April 18, 2023
Operation
Air carrier
Aircraft
N281WN
Make and model
Boeing 7377H4
Aircraft serial
36528
Aircraft time
51,516 hours, 31,045 cycles
Part
Floorbeam
Condition
Cracked
Location
Zn 100 Fus Lower
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

FLOOR BEAM IS CRACKED AT BS 294 RBL 55 WL 208<[01] FORMED 2 EA -2 ANGLES FROM 7075T0#0.080' CLAD LOT# 1462657-1 IAW SRM 53-10-51-2R-16 REPAIR 16;[02] VERIFIED CORRECTIVE ACTION 1.;[03] FLOOR BEAM CRACK AT BS 294 RBL55 WL 208 WAS REPAIRED IAW EA 23-153-01078;[04] VERIFIED MEASUREMENT TABLE. VERIFIED CORRECTIVE ACTION 3

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