Service difficulty report · Jackscrew · Boeing 767322

Difficulty date
February 10, 2004
Submitted
February 17, 2004
Operation
Air carrier
Aircraft
N643UA
Make and model
Boeing 767322
Aircraft serial
25093
Aircraft time
55,910 hours, 8,997 cycles
Engine
Pwa PW4060
Part
Jackscrew
Condition
Failed
Location
Lt Pack
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

FLIGHT DIVERTED DUE TO LEFT PACK TEMPERATURE CONTROL MESSAGE AND LIGHT. THE LEFT PACK INLET ACTUATOR WAS FOUND MECHANICALLY FROZEN. THE JACK SCREW ASSEMBLY FAILED. THE ACTUATOR WAS REPLACED AND NO FURTHER PROBLEMS WERE REPORTED.