Service difficulty report · Sequence Valve · Boeing 75724APF

Difficulty date
August 25, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N412UP
Make and model
Boeing 75724APF
Aircraft serial
23852
Part
Sequence Valve
Part number
26702887
Condition
Failed
Location
Nlg Door
Stage of operation
AP
Nature of condition
P
Precautionary procedure
O

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

What was found

INSPECTION TYPE:N/A, NOSE GEAR GREEN DOWN LIGHT FAILED TO ILLUMINATE WITH GEAR HANDLE DOWN. EICAS MESSAGE GEAR DISAGREE AND GEAR DOORS DISPLAYED DOORS AND GEAR AMBER LIGHTS ILLUMINATED. INDICATIONS NORMAL AFTER ALTN GEAR EXT, EXCEPT DOORS LIGHT REMAINED ILLUMINATED. REMOVED AND REPLACED NOSE GEAR DOOR SEQUENCE VALVE IAW MM 32-34-05. SWUNG GEAR 3 TIMES, SYSTEM OP'S CHECK GOOD.

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