Service difficulty report · Floorbeam · Boeing 737*

Difficulty date
December 16, 2021
Submitted
January 25, 2022
Operation
Air carrier
Aircraft
N822NN
Make and model
Boeing 737*
Aircraft serial
31085
Aircraft time
36,185 hours, 14,726 cycles
Part
Floorbeam
Condition
Corroded
Location
Zone 100 - Fuse
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

AIRCRAFT IN BASE MAINTENANCE: CORROSION OF FLOORBEAM UPPER CHORD T-CAP AT STA 947.5 BETWEEN RBL 24 AND RBL 50, MEASURING L=2.0 IN, W=2.5 IN, D=0.102 IN. REPLACED T-CAP WITH NEW IAW SRM 53-70-51-2R-5.