Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
August 5, 2026
Submitted
September 18, 2026
Operation
Air carrier
Aircraft
N474AS
Make and model
Boeing 737990ER
Aircraft serial
40715
Aircraft time
41,075 hours, 12,860 cycles
Part
Transition Panel
Part number
143A750129
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

FWD CARGO PIT LEFT TRANSITION AT STA 500 TO 500L HAS CORROSION. GROUNDED - YES. REPAIRED FWD CARGO PIT RT TRANSITION STA 500H+9 TO 500L IAW SRM 53-00-53-2R-5, REMOVED DAMAGE AT STA 500 TO 500H FOUND TO BE WITH IN LIMITS IAW SRM 53-00-53-1A-2.