Service difficulty report · Floorbeam · Boeing 737823

Difficulty date
September 24, 2026
Submitted
October 22, 2026
Operation
Air carrier
Aircraft
N959NN
Make and model
Boeing 737823
Aircraft serial
33329
Aircraft time
35,773 hours, 14,920 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 ON FLOOR BEAM BY LH IB AFT LAV MOUNT AT STA 947 LBL 24. REMOVED AND REPLACED UPPER CHORD OF THE 947 FLOOR BEAM FROM LBL 56.6 TO RBL 56.6 IAW SRM 53-70-51-2R REPAIR 5 ALT 1.