Service difficulty report · Start Valve · Boeing 737890

Difficulty date
December 28, 2018
Submitted
December 31, 2018
Operation
Air carrier
Aircraft
N581AS
Make and model
Boeing 737890
Aircraft serial
35188
Aircraft time
44,575 hours, 13,350 cycles
Part
Start Valve
Condition
Malfunctioned
Location
Nr 2
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

#2 START VALVE WOULD NOT OPEN ON TWO ATTEMPTED STARTS. GROUNDED - YES. C/W GVI OF #2 STR VLV AND ASSOCIATED DUCTING. NO OBVIOUS DEFECTS. EXCERCISED VALVE MANUALLY AND THEN ELECTRICALLY. ALL OK. ALL OPS CHK GOOD.