Service difficulty report · Control Unit · Bombdr DHC8402

Difficulty date
December 26, 2012
Submitted
December 31, 2012
Operation
Air carrier
Aircraft
N422QX
Make and model
Bombdr DHC8402
Aircraft serial
4150
Aircraft time
14,139 hours, 14,983 cycles
Part
Control Unit
Part number
699009003
Part serial
0354
Condition
Malfunctioned
Location
Zone 200
Part time
14,140 hours, 14,910 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

RECEIVED, PROP DE-ICE CAUTION LIGHT. COMPLIED WITH CHECK LIST, CAUTION LIGHT EXTINGUISHED BUT PROP HEAT ADVISORY LIGHT DID NOT CYCLE WHEN SELECTED ON AND THERE WAS NO LOAD ON THE AC GENERATOR A OR B PHASES AND MINIMAL LOAD CHANGE. RETURNED TO FIELD. LANDING UNEVENTFUL. INTEROGATED CDS FOUND FAULT CODE " OTHER TMCU (SH) ON TMCU NR 2. R & R THE NR 1 TMCU IAW AMM TASK NR 30-61-06-000-801 AND 30-61-06-400-801, OPS TESTS GOOD. NO FUTHER DEFECTS NOTED. RETURNED TO SERVICE.