Service difficulty report · Electrical Box · Bombdr DHC8402

Difficulty date
September 24, 2020
Submitted
September 29, 2020
Operation
Air carrier
Aircraft
N412QX
Make and model
Bombdr DHC8402
Aircraft serial
4059
Aircraft time
43,339 hours, 45,621 cycles
Part
Electrical Box
Part number
11521486SERIES6
Part serial
051C0132
Condition
Damaged
Location
Nr 2 Nacelle
Part time
43,339 hours, 45,621 cycles
Stage of operation
AP
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

IN FLIGHT PUSHER SYSTEM FAIL, ADP HEAT NR 2 AND PROP DEICE CAUTION LIGHT. ON FINAL NR 2 AC GEN CAUTION LIGHT, AFTER TOUCHDOWN NR 1 STALL SYSTEM FAIL, NR 2 STALL SYSTEM FAIL, PUSHER SYSTEM FAIL CAUTION LIGHT. REMOVED FROM SERVICE. FOUND FORWARD POSITIVE TERMINAL OF AC CONTACTOR K2 RELAY HAD ARCHING DAMAGE. BURN MARK ON CENTER TERMINAL LIG FORWARD SIDE OF CONTACTOR. ALSO FORWARD AC CONTACTOR BRACKET BROKEN. REPLACED NR 2 AC CONTACTOR BOX. ALL SYSTEM TEST GOOD. RETURNED TO SERVICE.