Commuter flight, no passenger on board, aborts takeoff as door opens light illuminates.

Attributes
ACN	225560
Time
Date	199211
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bos
State Reference	MA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Small Transport
Flight Phase	climbout : takeoff other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 4150 flight time type : 2300
ASRS Report	225560
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe non adherence : far other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified 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:

We were cleared for takeoff on runway 33L from intersection G. On the takeoff roll a door light flashed on the annunciator panel and I called for the first officer to abort the takeoff. After turning off the runway I checked the main cabin door and determined that although the door light was locked I could move the handle up firmly and the door light went out. I determined that the vibration of the takeoff roll caused the microswitch in the door to illuminate the light. Firmly closing the latch extinguished the door light and I was confident there was no problem. I would also like to note that I have been flying this type of aircraft for 3 yrs and I have seen the same occurrences many times. Boston tower asked what our intentions were and I replied that we were ready for takeoff. We were cleared for takeoff and the flight went without incident, the light did not illuminate again. Although there was not another problem with the door light and I am confident that I corrected the problem prior to departing again, it came to my attention after the fact that proper procedure would be to taxi back to the gate. Have a mechanic look at the microswitch controling the door light and determine that it was not faulty, and make the correct entries in the logbook. With this information my actions should have been to return to the gate. I did not compromise safety on this flight but if the situation ever occurs again, now that I have been made aware of the fact, I will return to the gate and properly write the discrepancy in the logbook.

Original NASA ASRS Text

Title: COMMUTER FLT, NO PAX ON BOARD, ABORTS TKOF AS DOOR OPENS LIGHT ILLUMINATES.

Narrative: WE WERE CLRED FOR TKOF ON RWY 33L FROM INTXN G. ON THE TKOF ROLL A DOOR LIGHT FLASHED ON THE ANNUNCIATOR PANEL AND I CALLED FOR THE FO TO ABORT THE TKOF. AFTER TURNING OFF THE RWY I CHKED THE MAIN CABIN DOOR AND DETERMINED THAT ALTHOUGH THE DOOR LIGHT WAS LOCKED I COULD MOVE THE HANDLE UP FIRMLY AND THE DOOR LIGHT WENT OUT. I DETERMINED THAT THE VIBRATION OF THE TKOF ROLL CAUSED THE MICROSWITCH IN THE DOOR TO ILLUMINATE THE LIGHT. FIRMLY CLOSING THE LATCH EXTINGUISHED THE DOOR LIGHT AND I WAS CONFIDENT THERE WAS NO PROBLEM. I WOULD ALSO LIKE TO NOTE THAT I HAVE BEEN FLYING THIS TYPE OF ACFT FOR 3 YRS AND I HAVE SEEN THE SAME OCCURRENCES MANY TIMES. BOSTON TWR ASKED WHAT OUR INTENTIONS WERE AND I REPLIED THAT WE WERE READY FOR TKOF. WE WERE CLRED FOR TKOF AND THE FLT WENT WITHOUT INCIDENT, THE LIGHT DID NOT ILLUMINATE AGAIN. ALTHOUGH THERE WAS NOT ANOTHER PROBLEM WITH THE DOOR LIGHT AND I AM CONFIDENT THAT I CORRECTED THE PROBLEM PRIOR TO DEPARTING AGAIN, IT CAME TO MY ATTN AFTER THE FACT THAT PROPER PROC WOULD BE TO TAXI BACK TO THE GATE. HAVE A MECH LOOK AT THE MICROSWITCH CTLING THE DOOR LIGHT AND DETERMINE THAT IT WAS NOT FAULTY, AND MAKE THE CORRECT ENTRIES IN THE LOGBOOK. WITH THIS INFO MY ACTIONS SHOULD HAVE BEEN TO RETURN TO THE GATE. I DID NOT COMPROMISE SAFETY ON THIS FLT BUT IF THE SITUATION EVER OCCURS AGAIN, NOW THAT I HAVE BEEN MADE AWARE OF THE FACT, I WILL RETURN TO THE GATE AND PROPERLY WRITE THE DISCREPANCY IN THE LOGBOOK.

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.