Service difficulty report · Connector · Boeing 737890

Difficulty date
April 5, 2013
Submitted
April 16, 2013
Operation
Air carrier
Aircraft
N560AS
Make and model
Boeing 737890
Aircraft serial
35179
Aircraft time
25,588 hours, 7,847 cycles
Part
Connector
Condition
Disconnected
Location
Pressure Switch
Stage of operation
LD
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

ON LANDING ROLLOUT NR 2 FILTER BYPASS ILLUM. ACFT GROUNDED. CDU SHOWS NR 2 ENG FUEL FILTER DISAGREE MSG 73-31072. BITE CK SHOWS THE FILTER IS NOT BYPASSED ON GROUND WITH ENG OFF, FILTER BYPASS IS NOT ILLUMINATED. FOUND CONNECTOR ON DIFFERENTIAL PRESS SWITCH DISCONNECTED. REPLACED SWITCH ASSY IAW AMM 73-34-01-000-801-F00 AND 73-34-01-400-801-F00. PERFORMED IDLE POWER LEAK CHECK REF TASK 71-00-00-700-801-F00, NO LEAKS NOTED, NO LIGHTS.