Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
March 6, 2018
Submitted
March 13, 2018
Operation
Air carrier
Aircraft
N402AS
Make and model
Boeing 737990ER
Aircraft serial
41189
Aircraft time
21,246 hours, 6,990 cycles
Part
Transition Panel
Part number
146A750220
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 TRANSITION PANEL HAS CORROSION NUMEROUS PLACE BETWEEN BS727I+6 AND BS767 AS MARKS. GROUNDED - YES. REMOVED CORROSION ON AFT PIT RT TRANSITION PANEL FROM STA 727I+6 TO STA 767 IAW SRM 51-10-02. ORIGINAL THICKNESS IS .040, REMAINING THICKNESS IS .033 ON MULTIPLE PLACES, LOSS OF .007. OUT OF LIMITS IAW 53-00-53. REMOVED AND REPLACED DAMAGED SECTION FROM STA 727I+6 TO STA 767.