Service difficulty report · Switch · Boeing 767322

Difficulty date
May 23, 2003
Submitted
June 3, 2003
Operation
Air carrier
Aircraft
N676UA
Make and model
Boeing 767322
Aircraft serial
30028
Aircraft time
6,982 hours, 1,996 cycles
Engine
Pwa PW4052
Part
Switch
Condition
Malfunctioned
Location
Lt Bleed
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
C

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

What was found

LT BLEED FAILED ON TAKEOFF ROLL. CREW WAS DOING A PACKS OFF TAKEOFF WITH ENG BLEED SWITCHES ON AND ALL ISOLATION VALVES OPEN. NORMAL CONDITION TO GET BLEED OFF ON ONE SIDE OR THE OTHER DUE TO DUAL BLEED PROTECTION.