Service difficulty report · Channel · Boeing 737990ER

Difficulty date
June 13, 2017
Submitted
June 22, 2017
Operation
Air carrier
Aircraft
N431AS
Make and model
Boeing 737990ER
Aircraft serial
43255
Aircraft time
14,545 hours, 4,801 cycles
Part
Channel
Part number
143A7501203
Condition
Corroded
Location
Bs 500b-500g
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 CARGO COMPARTMENT LH TRANSITION PANEL HAS SEVERAL AREAS OF CORROSION FROM STA 500D TO 500G+12. ACFT GROUNDED. REMOVED AND REINSTALLED FLOOR PANEL 120EF IAW AMM 25-52-10. REMOVED CORROSION ON LT TRANSITION PANEL AND FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53. FABRICATED A NEW TRANSITION PANEL SECTION IAW SRM 53-00-53-2R-6, REPAIR 6. ALODINED AND PRIMED NEW REPAIR SECTION IAW SRM 51-20-01. INSTALLED NEW TRANSITION PANEL REPAIR SECTION IAW SRM 53-00-53-2R-6 REPAIR 6 G0879533.