Service difficulty report · Proximity Sensor · Bombdr DHC8402

Difficulty date
September 16, 2007
Submitted
September 18, 2007
Operation
Air carrier
Aircraft
N414QX
Make and model
Bombdr DHC8402
Aircraft serial
4061
Aircraft time
15,166 hours, 15,068 cycles
Part
Proximity Sensor
Condition
Out Of Adjust
Location
Mlg
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

SEA FLIGHT NR 2260: RIGHT MLG DOOR LIGHT ILLUMINATES RANDOMLY FOR ONE SECOND INTERVALS IN FLIGHT. OCCASIONAL GEAR BUMP FELT. MAINTENANCE INTERROGATED PSEU FOR PRESENT FAULTS AND FOUND 'LGDRCL RIGGING NEAR GAP TOO LARGE' AND 'RGDRCL RIGGING FAR GAP TOO SMALL' ADJUSTED BOTH LGDRCL AND RGDRCL PROX SENSORS IAW Q400 AMM TASK 32-61-06-830-801 FOR A NOMINAL GAP OF .050" AND AN INDUCTANCE NOMINAL VALVE OF 8.102 MH TO 8.522 MH. PRESENT FAULTS CLEARED. CYCLED GEAR DOORS 5 TIMES. OPS CHECK GOOD. FAULT HISTORY WAS ALSO CLEARED IAW Q400 AMM TASK 32-61-00-743-801. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.