Service difficulty report · Warning Light · Boeing 747422

Difficulty date
June 7, 2000
Submitted
October 4, 2000
Operation
Air carrier
Aircraft
N120UA
Make and model
Boeing 747422
Aircraft serial
29166
Aircraft time
5,169 hours, 684 cycles
Engine
Pwa PW4056
Part
Warning Light
Condition
Illuminated
Location
Pax Door
Stage of operation
TO
How discovered
O
Nature of condition
N
Precautionary procedure
C

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

What was found

REJECTED TAKEOFF AT APPROXIMATELY 110 KNOTS DUE TO DOOR 5L WARNING LIGHT ON ICAS. *S/D* THE DOOR WAS CYCLED SEVERAL TIMES, AND THE SWITCH AND CONNECTOR WERE INSPECTED AND FOUND OK. THEN THE CABIN WAS PRESSURIZED TO 4.0 PSID AND NO DOOR WARNING OCCURRED. THE DOOR WARNING SWITCH S33 WAS REPLACED AS A PRECAUTIONARY MEASURE (CH -1035).