Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
July 24, 2020
Submitted
August 4, 2020
Operation
Air carrier
Aircraft
N409AS
Make and model
Boeing 737990ER
Aircraft serial
41733
Aircraft time
28,754 hours, 9,291 cycles
Part
Transition Panel
Part number
143A7501167
Condition
Corroded
Location
Bs 500k-500l
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 PIT RT TRANSITION PANEL CORRODED AT STA 500K. GROUNDED - YES. BLENDOUT CORROSION ON R/H TRANSITION PNL IN FWD CARGO PIT, FOUND TO BE OUT OF LIMITS IAW SRM 53 30 53 01 2 FABRICATED,LOCATED AND DRILLED AND INSTALLED NEW REPAIR PARTS IAW SRM 53-00-53-2R-5 REPAIR 5.