Takeoff aborted in dawn operation.

Attributes
ACN	253268
Time
Date	199310
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mlb
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Dawn
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Navigation In Use	Other Other
Flight Phase	climbout : takeoff ground : preflight ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 6000 flight time type : 2000
ASRS Report	253268
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : rejected takeoff
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

During preflight/before takeoff checks, a maintenance discrepancy was noted. Maintenance personnel arrived and the before engine start list had been completed by the flight crew. The crew exited the flight deck and allowed the mechanic to occupy the captain's seat. The mechanic started the corrective action without the technical manual. When I returned to the flight deck with the functional checklist, we read through it to insure the items were corrected properly. However, the mechanic had pulled the aural warning breaker without our knowledge and the maintenance checklist had not called for it. The mechanic exited the flight deck to complete the paper work while we assumed our duty position to expedite the departure. We taxied for departure and completed the before takeoff checklist. On takeoff roll we received a takeoff aural warning of 'trim.' we looked and the trim was set correctly so we aborted the takeoff and exited the runway. We then discovered the breaker pulled and reset the breaker and performed a functional check of the 'takeoff aural warning' and it was satisfactory. Another takeoff was made and flight continued without further incident. Moral of the episode: run the entire checklist after maintenance leaves just in case they did something not called for in the maintenance procedure.

Original NASA ASRS Text

Title: TKOF ABORTED IN DAWN OP.

Narrative: DURING PREFLT/BEFORE TKOF CHKS, A MAINT DISCREPANCY WAS NOTED. MAINT PERSONNEL ARRIVED AND THE BEFORE ENG START LIST HAD BEEN COMPLETED BY THE FLC. THE CREW EXITED THE FLT DECK AND ALLOWED THE MECH TO OCCUPY THE CAPT'S SEAT. THE MECH STARTED THE CORRECTIVE ACTION WITHOUT THE TECHNICAL MANUAL. WHEN I RETURNED TO THE FLT DECK WITH THE FUNCTIONAL CHKLIST, WE READ THROUGH IT TO INSURE THE ITEMS WERE CORRECTED PROPERLY. HOWEVER, THE MECH HAD PULLED THE AURAL WARNING BREAKER WITHOUT OUR KNOWLEDGE AND THE MAINT CHKLIST HAD NOT CALLED FOR IT. THE MECH EXITED THE FLT DECK TO COMPLETE THE PAPER WORK WHILE WE ASSUMED OUR DUTY POS TO EXPEDITE THE DEP. WE TAXIED FOR DEP AND COMPLETED THE BEFORE TKOF CHKLIST. ON TKOF ROLL WE RECEIVED A TKOF AURAL WARNING OF 'TRIM.' WE LOOKED AND THE TRIM WAS SET CORRECTLY SO WE ABORTED THE TKOF AND EXITED THE RWY. WE THEN DISCOVERED THE BREAKER PULLED AND RESET THE BREAKER AND PERFORMED A FUNCTIONAL CHK OF THE 'TKOF AURAL WARNING' AND IT WAS SATISFACTORY. ANOTHER TKOF WAS MADE AND FLT CONTINUED WITHOUT FURTHER INCIDENT. MORAL OF THE EPISODE: RUN THE ENTIRE CHKLIST AFTER MAINT LEAVES JUST IN CASE THEY DID SOMETHING NOT CALLED FOR IN THE MAINT PROC.

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.