Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
October 20, 2025
Submitted
November 13, 2025
Operation
Air carrier
Aircraft
N468AS
Make and model
Boeing 737990ER
Aircraft serial
41735
Aircraft time
41,930 hours, 13,131 cycles
Part
Transition Panel
Part number
146A750236
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

AFT CARGO RT TRANSITION PANEL CORRODED BS 767 TO 727A. GROUNDED - YES. REMOVED CORROSION ON THE TRANSITION PANEL AND FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2, FABRICATED LOCATED, DRILLED AND INSTALLED A NEW TRANSITION PANEL IAW SRM 53-00-53-2R-5. W= 3IN O= .040 R= 0.00 L= 3IN D= .040.