Service difficulty report · Transition Panel · Boeing 737890

Difficulty date
April 28, 2023
Submitted
May 22, 2023
Operation
Air carrier
Aircraft
N537AS
Make and model
Boeing 737890
Aircraft serial
35204
Aircraft time
41,376 hours, 11,986 cycles
Part
Transition Panel
Part number
143A7501187
Condition
Corroded
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 L/H TRANSITION PANEL AT STA 500H-500I IS CORRODED. GROUNDED - YES. REMOVED THE CORROSION FROM THE FWD PIT L/H TRANSITION PANEL AT STA 500H-500I PER B737-800 SRM 53-00-533-1A-2.2.D. ORIG THICKNESS IS .040" PER B737-800 SRM 53-30-53-0I-2 TABLE 2. REMOVED .020". REMAINING THICKNESS IS .020" AND IS FOUND TO BE OUT OF LIMITS PER B737-800 SRM 53-00-53-1A-2.4.A.(2). REMOVED. FAB'D LOCATED & DRILLED NEW USING BAC 1466-444 7075-T6. PO:1059596.1, APPLIED ALODINE, PRIMER, AND NUTPLATES, AND INSTALLED NEW TRANSITION PANEL 500G+10-500I AW B737-800 SRM 53-00-53-2R-5.