Service difficulty report · Warning System · Boeing 747422

Difficulty date
August 9, 2007
Submitted
August 14, 2007
Operation
Air carrier
Aircraft
N175UA
Make and model
Boeing 747422
Aircraft serial
24382
Aircraft time
67,008 hours, 7,637 cycles
Engine
Pwa PW4056
Part
Warning System
Condition
Activated
Location
Cockpit
Stage of operation
CR
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

GEAR MONITOR, EICAS STATUS MESSAGE DISPLAYED. PRI & ALT LANDING GEAR POSITION INDICATION DISAGREE. SELECTED LANDING GEAR MAINTENANCE MESSAGE OR LOSS OF EITHER PSEU BUS OR SELECTED PSEU FAULT. 08-31-07 FOUND EICAS MSG 28649 & 28651. FOUND CIRCUIT BREAKER OPEN "CTR R MAIN 2 JETT VALVE". RESET. OPS NML. NO FOLLOWUP PROBLEMS REPORTED FOR 14 DAYS.