Service difficulty report · Frame · Boeing 737*

Difficulty date
March 23, 2021
Submitted
November 22, 2021
Operation
Air carrier
Aircraft
N981NN
Make and model
Boeing 737*
Aircraft serial
31230
Aircraft time
15,548 hours, 6,268 cycles
Part
Frame
Part number
147A5504
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 ON T-CAP FRAME UNDER AFT INBD LAVATORY MOUNT FITTING AT STA 947.5 AND LBL 24.75, MEASURING L=1.2 IN, W=0.85 IN, D=0.065 IN. ACCOMPLISHED PERMANENT REINFORCING REPAIR IAW SRM 53-70-51 AND EA331886.