Service difficulty report · Channel · Boeing 737990

Difficulty date
April 18, 2016
Submitted
April 27, 2016
Operation
Air carrier
Aircraft
N309AS
Make and model
Boeing 737990
Aircraft serial
30857
Aircraft time
53,241 hours, 20,696 cycles
Part
Channel
Part number
146A750218
Condition
Corroded
Location
Bs 727c-727f
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 CARGO COMPARTMENT, RT FLOOR SUPPORT ZEE CHANNEL SECTION APPROXIMATELY BS 727C+10 TO 727F+10 IS CORRODED, INTERGRANULAR. ACFT GROUNDED. REMOVED CORROSION IAW SRM 53-00-53-1A-2 ORIGINAL THICKNESS .040, REMAINING THICKNESS .034, REMOVED .006, FOUND TO BE OUT OF LIMITS IAW SRM 53-60-53-01-2, T 8225V. REMOVED RT FLOOR SUPPORT ZEE CHANNEL IAW SRM 51-40-02, MATERIAL ID FOR ZEE CHANNEL BAC1496-377 7079-TG2 EXTRUSION ROLL PO 859263.5 IAW SRM 53-00-53-2R-5. REPAIR 5 DRILLED NEW ZEE CHANNEL AND SPLICE IAW SRM 53-00-53-2R-5 ALODINED IAW SRM 51-20-01 PRIMED IAW SOPM 20-41-02 INSTALLED NEW ZEE CHANNEL IAW SRM 53-00-53-2R-5.