Service difficulty report · Transition Panel · Boeing 737990

Difficulty date
March 9, 2018
Submitted
March 21, 2018
Operation
Air carrier
Aircraft
N309AS
Make and model
Boeing 737990
Aircraft serial
30857
Aircraft time
59,215 hours, 23,367 cycles
Part
Transition Panel
Part number
146A75008
Condition
Corroded
Location
Fuselage
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 RT SIDE FLOOR TRANSITION PANEL HAS SEVERAL NUTPLATE CORRODED BETWEEN STA 727I+8 AND STA 767. GROUNDED - YES. REMOVED CORROSION - ORIG MAT=.040, MAT REMOVED=.013, REMAINING MAT=.027. FOUND TO BE OUT OF LIMITS BY SRM 53-00-53-1A-2. REMOVED AND REPLACED AFT PIT TRANSITION PNL IAW SRM 53-00-53-2R-5 AND SRM 51-40-02 FROM STA 727I+8 AND STA 767.