Service difficulty report · Floorbeam · Boeing 737823

Difficulty date
November 7, 2025
Submitted
December 22, 2025
Operation
Air carrier
Aircraft
N944NN
Make and model
Boeing 737823
Aircraft serial
31185
Aircraft time
35,405 hours, 14,655 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

AIRCRAFT IN BASE MAINTENANCE: CORROSION TO PASSENGER CABIN FLOORBEAM UPPER CHORD (T-CAP) AT BS 947. REPLACED CHORD PER EA 370421.