Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
April 10, 2024
Submitted
May 1, 2024
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
41,192 hours, 12,959 cycles
Part
Transition Panel
Part number
146A7502
Condition
Corroded
Location
Aft Cargo
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 RH SIDE TRANSITION PANELS HAVE VARIOUS SPOTS OF CORROSION FROM STA 727F TO 767. GROUNDED - YES. EVALUATED AFT CARGO R/H TRANSITION PANEL. REMOVED CORROSION. ORIGINAL THICKNESS .040, REMOVED .040, REMAINING .000. FOUND TO BE OUT OF LIMITS. REMOVED, FABRICATED NEW AND INSTALLED NEW R/H TRANSITION IAW B737-900 SRM 53-00-53-1A-2 AND 53-00-53-2R-5.