EMB120 captain experiences an aural 'autofeather' warning during takeoff and rejects the takeoff.

Attributes
ACN	1102750
Time
Date	201307
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Brasilia EMB-120 All Series
Operating Under FAR Part	Part 121
Flight Phase	Other Rejected Takeoff
Flight Plan	IFR
Component
Aircraft Component	Propeller Autofeather System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Entered the runway and was cleared for takeoff. Advanced the power levers normally and stated; 'set power.' the first officer set the power and we continued down the runway. Then the aural warning 'autofeather' sounded and I looked up and the green autofeather light was not on. The autofeather arming switch was in the 'on' position. I called 'abort' and rejected the takeoff and exited the runway. I called the flight attendant off of the runway and told her what happened and that we were going back to the gate. We completed the after landing check and taxied back to the gate; wrote up the aircraft. I then called dispatch who transferred me to maintenance control; and downed the aircraft.

Original NASA ASRS Text

Title: EMB120 Captain experiences an aural 'autofeather' warning during takeoff and rejects the takeoff.

Narrative: Entered the runway and was cleared for takeoff. Advanced the power levers normally and stated; 'Set power.' The First Officer set the power and we continued down the runway. Then the aural warning 'autofeather' sounded and I looked up and the green autofeather light was not on. The autofeather arming switch was in the 'on' position. I called 'abort' and rejected the takeoff and exited the runway. I called the Flight Attendant off of the runway and told her what happened and that we were going back to the gate. We completed the after landing check and taxied back to the gate; wrote up the aircraft. I then called Dispatch who transferred me to Maintenance Control; and downed the aircraft.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.