Service difficulty report · Relay · Boeing 767322

Difficulty date
March 28, 2010
Submitted
April 7, 2010
Operation
Air carrier
Aircraft
N671UA
Make and model
Boeing 767322
Aircraft serial
30026
Aircraft time
38,409 hours, 10,151 cycles
Engine
Pwa PW4056
Part
Relay
Condition
Inoperative
Location
Hydraulic Sys
Stage of operation
IN
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

C ADP LOW PRESS LIGHT ILLUMINATED IN AUTO. EICAS MSG DISPLAYED C HYD DEM PUMP. ADP PRESS IS NORMAL. COMMENTS: C HYD DEM PUMP. FOUND ADP INOP IN AUTO AND ON MODE. TROUBLESHOT AND REPLACED K443 RELAY. OPS CHK OKAY.