Service difficulty report · Sensor · Boeing 76734AF

Difficulty date
April 21, 2021
Submitted
April 21, 2021
Operation
Air carrier
Aircraft
N330UP
Make and model
Boeing 76734AF
Aircraft serial
27756
Aircraft time
57,882 hours, 18,952 cycles
Part
Sensor
Condition
Malfunctioned
Location
Mlg
Stage of operation
DE
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

DUE TO INBOUND ITEM "GEAR NOT DOWN" EICAS MESSAGE. CHECKED GEAR DOWN LOCK SENSORS REF SSM 32 61 01 SH. 1 FOUND TARGET NEAR VALUES AS FOLLOWS. S236 AT 5.25 MH, S232AT 5.20 MH -S236 AT 5.25MH, S254 AT 5.23MHADJUSTED SENSORS, AFTER ADJUSTMENTS. WITH TARGET NEAR VALUES WERE AS FOLLOWS S236 AT 5.62 S232 AT5.82 MH, S258 AT5.63 MH, S254 AT5.78 ALSO CHECKED SENSOR CIRCUITS FOR SHORTS TO GND. WITH MEG OHM METER FOUND OK. REF MM 32 61 02 AND 32 61 03.

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