Service difficulty report · Switch · Snias AS350B2

Difficulty date
May 20, 2012
Submitted
May 21, 2012
Operation
Air carrier
Aircraft
N566AM
Make and model
Snias AS350B2
Aircraft serial
4404
Aircraft time
1,857 hours, 3,924 cycles
Engine
Tmeca ARRIEL1D1
Engine time
1,857 hours, 3,431 cycles
Part
Switch
Part number
045004B146A
Condition
Burned
Location
Cabin
Part time
210 hours, 497 cycles
Stage of operation
TO
How discovered
C
Nature of condition
B
Precautionary procedure
C

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

What was found

ON STARTUP, SMELLED ELECTRICAL BURNING AND NOTICED LOWER FUEL PUMP SWITCH LIGHT TO NOT BE ON AND THE ENGINE FIRE WARNING LIGHT TO BE ON IN THE WARNING CAUTION PANEL. FOUND WARNING BREAKER TO BE TRIPPED AND LOWER FUEL PUMP SWITCH TO BE BURN AND STUCK IN THE ON POSTION ALONG WITH THE 30 ALPHA PANEL CIRCUIT BOARD TO BE BURNED. INSPECTED 30 ALPHA PANEL WIRING AND FOUND TO BE IN A SERVICABLE CONDITION. REMOVED FAULTY 30 ALPHA PANEL AND REPLACED WITH A NEW 30 ALPHA PANEL. RESET ENGINE FIRE WARNING BREAKER PERFORMED FUNCTION TEST AND FOUND ALL TO BE IN A SERVICABLE CONDITION.