Service difficulty report · Valve · Boeing 737890

Difficulty date
June 19, 2019
Submitted
June 21, 2019
Operation
Air carrier
Aircraft
N508AS
Make and model
Boeing 737890
Aircraft serial
35691
Aircraft time
41,551 hours, 12,399 cycles
Part
Valve
Part number
UNKNOWN
Condition
Malfunctioned
Location
Crossfeed
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

WHILE PERFORMING TASK CARD 7818008, ENGINE CROSSFEED VALVE FAILED FUNCTIONAL TEST. GROUNDED - YES. PERFORMED ENGINE FUEL CROSSFEED VALVE ALIGNMENT REF B737-800 AMM 28-22-21-820-801, OPS AND FUNCTIONAL CHECK GOOD.