Service difficulty report · Crease Beam · Boeing 737990ER

Difficulty date
October 24, 2025
Submitted
November 18, 2025
Operation
Air carrier
Aircraft
N468AS
Make and model
Boeing 737990ER
Aircraft serial
41735
Aircraft time
41,930 hours, 13,131 cycles
Part
Crease Beam
Part number
146A591032
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

AT PASSENGER CABIN FLOOR STRUCTURE RT CREASE BEAM FROM STA.747 THRU STA.887 HAS CORROSION IN MULTIPLE SPOTS (SOME IS MARKED). GROUNDED - YES. REMOVED DAMAGE, FOUND TO BE OUT OF LIMITS IAW SRM 53-60-13-1A-1, REPAIRED DAMAGE IAW EA 900ER-53EA-29536W: 1.5 O: 0.50 R: .026 L: 9 D: .024.