Service difficulty report · Transition Panel · Boeing 737990

Difficulty date
February 23, 2016
Submitted
March 9, 2016
Operation
Air carrier
Aircraft
N319AS
Make and model
Boeing 737990
Aircraft serial
33679
Aircraft time
46,130 hours, 17,707 cycles
Part
Transition Panel
Part number
143A75011
Condition
Corroded
Location
Bs 500b-500f
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 LT TRANSITION PANEL FROM BS 500B+10 TO 500F+10 CORRODED IN SEVERAL PLACES. ACFT GROUNDED. REMOVED CORROSION FWD PIT LT TRANSITION PANEL FROM BS 500B+10 TO 500F+10 IAW SRM 51-10-02 ORIGINAL THICKNESS IS.040 IAW SRM 53-30-53 FROM BS 500B-BS 500C+14 FOUND TO BE WITHIN LIMITS, REMOVED .001. REMAINING .039 FROM BS 500C+14 TO BS 500F+10. REMOVED .012, REMAINING .028 FOUND OUT OF LIMITS IAW SRM 53-00-53-A-1A. REMOVED SECTION FROM BS 500C+14 TO BS 500F+10 AND REPLACED WITH NEW IAW SRM 53-00-53-2R-6 ALODINED IAW SRM 51-20-01 PRIMED IAW SOPM 20-41-02. REMOVED DOT AND OR STREAMER .