Service difficulty report · Wire Harness · Boeing 737990ER

Difficulty date
August 15, 2021
Submitted
August 18, 2021
Operation
Air carrier
Aircraft
N486AS
Make and model
Boeing 737990ER
Aircraft serial
44107
Aircraft time
22,058 hours, 7,043 cycles
Part
Wire Harness
Part number
3250453010
Condition
Faulty
Location
Start Valve
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT START VALVE OPEN LIGHT ILLUMINATED AFTER START. GROUNDED - YES. (RESOLVED ON W/O: 1877189 TASKCARD: N/R-00002 ) REMOVED AND INSTALLED NEW MW0312 NACELLE WIRING HARNESS ON #1 ENGINE PER B737-900 MM 71-51-03/401, OPS CHECK NORMAL. NO FAULTS FOUND. GROUND VERIFICATION SUCCESSFUL. OPENED, COLLARD, RESET 4 C/B'S. PLACARD REMOVED. THIS CLEARS MEL 80-3B. SEAMC TODD NOTIFIED.