Service difficulty report · Transition Panel · Boeing 737790

Difficulty date
January 19, 2021
Submitted
February 10, 2021
Operation
Air carrier
Aircraft
N609AS
Make and model
Boeing 737790
Aircraft serial
29752
Aircraft time
66,010 hours, 32,547 cycles
Part
Transition Panel
Part number
146A75022
Part serial
NSN
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

AFT PIT R/H TRANSITION PANEL HAS MULTIPLE AREAS OF CORROSION FROM STA 727-767. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS FOUND TO BE OUT OF LIMITS IAW B737-700 SRM 53-00-53-1A-2, REPAIRED TRANSITION PANEL IAW B737-700 SRM 53-00-53-2R-5 REPAIR 5W=1 O=.040 R=.024 L=6 D=.016.