Air carrier has elevator trim warning on takeoff roll. Abort takeoff.

Attributes
ACN	181796
Time
Date	199106
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : cle
State Reference	OH
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mgw
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 85 flight time total : 1800 flight time type : 300
ASRS Report	181796
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Captain and I were cleared for takeoff on runway 28 at cle en route to syr. On takeoff roll the aural warning for the elevator trim sounded so we aborted. The captain looked to see if the trim was in limits which it was. After we got off the runway I realized what had happened. It seemed to me that the control yoke was coming up too soon so I tried to give it nose down trim electrically. The trim switch is split and both parts must be engaged or the warning comes on. I must have only depressed half of the switch thoroughly which gave us the trim warning. We agreed it was my fault and there was no mechanical problem, we proceeded back to runway 28. The takeoff was fine, no problems. We also failed to notify the proper people of what happened.

Original NASA ASRS Text

Title: ACR HAS ELEVATOR TRIM WARNING ON TKOF ROLL. ABORT TKOF.

Narrative: CAPT AND I WERE CLRED FOR TKOF ON RWY 28 AT CLE ENRTE TO SYR. ON TKOF ROLL THE AURAL WARNING FOR THE ELEVATOR TRIM SOUNDED SO WE ABORTED. THE CAPT LOOKED TO SEE IF THE TRIM WAS IN LIMITS WHICH IT WAS. AFTER WE GOT OFF THE RWY I REALIZED WHAT HAD HAPPENED. IT SEEMED TO ME THAT THE CTL YOKE WAS COMING UP TOO SOON SO I TRIED TO GIVE IT NOSE DOWN TRIM ELECTRICALLY. THE TRIM SWITCH IS SPLIT AND BOTH PARTS MUST BE ENGAGED OR THE WARNING COMES ON. I MUST HAVE ONLY DEPRESSED HALF OF THE SWITCH THOROUGHLY WHICH GAVE US THE TRIM WARNING. WE AGREED IT WAS MY FAULT AND THERE WAS NO MECHANICAL PROB, WE PROCEEDED BACK TO RWY 28. THE TKOF WAS FINE, NO PROBS. WE ALSO FAILED TO NOTIFY THE PROPER PEOPLE OF WHAT HAPPENED.

Data retrieved from NASA's ASRS site as of July 2007 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.