Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
August 5, 2026
Submitted
September 5, 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
143A7501192
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 RT TRANSITION AT STA 500E TO 500L HAS CORROSION. GROUNDED - YES. REPAIRED FWD CARGO PIT RT TRANSITION BS 500+9 TO 500L IAW B737-900ER SRM 53-00-53-2R-5.