Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
December 10, 2025
Submitted
January 3, 2026
Operation
Air carrier
Aircraft
N273AK
Make and model
Boeing 737990ER
Aircraft serial
61554
Aircraft time
29,646 hours, 9,589 cycles
Part
Transition Panel
Part number
146A750234
Condition
Corroded
Location
Zone 100
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

WHILE ACCOMPLISHING GVI FOUND AFT CARGO RT TRANSITION CORRODED STA 767 TO 727C. GROUNDED - YES. REMOVED CORROSION IAW SRM 53-00-53-1A-2, REMOVED AND REPLACED CORRODED TRANSITION PANEL SECTION IAW SRM 53-00-53-2R-5W= 2" O= .040 R= .025 L= 2" D= .012.