The door opened on takeoff.

Attributes
ACN	258337
Time
Date	199312
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : isp
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : isp tower : atl
Operator	general aviation : instructional
Make Model Name	Small Transport
Flight Phase	climbout : takeoff ground : preflight
Route In Use	departure other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : commercial
Experience	controller radar : 6 flight time last 90 days : 25 flight time total : 1000 flight time type : 100
ASRS Report	258337
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : less severe non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

During the takeoff roll in the BE95 travelair the door opened. I elected to continue the takeoff not knowing how loud it would become in the cockpit. Because of the noise I was unable to communication with isp tower nor with ny departure. I flew the plane to hwv where we were able to close the door and then we returned to isp. The chain of events went: 1) we did not insure that the door was closed properly even though I pushed heavily on it. 2) I continued the takeoff even though we could have easily aborted. (I thought we would be able to close the door in the air. 3) I did not stay in the pattern and land because we could not communication with anyone. What I learned: 1) on a low wing plane it is very difficult (impossible) to shut the door in flight. 2) abort takeoffs if anything untoward happens. 3) memorize light signals and broadcast in the blind even if I can't hear.

Original NASA ASRS Text

Title: THE DOOR OPENED ON TKOF.

Narrative: DURING THE TKOF ROLL IN THE BE95 TRAVELAIR THE DOOR OPENED. I ELECTED TO CONTINUE THE TKOF NOT KNOWING HOW LOUD IT WOULD BECOME IN THE COCKPIT. BECAUSE OF THE NOISE I WAS UNABLE TO COM WITH ISP TWR NOR WITH NY DEP. I FLEW THE PLANE TO HWV WHERE WE WERE ABLE TO CLOSE THE DOOR AND THEN WE RETURNED TO ISP. THE CHAIN OF EVENTS WENT: 1) WE DID NOT INSURE THAT THE DOOR WAS CLOSED PROPERLY EVEN THOUGH I PUSHED HEAVILY ON IT. 2) I CONTINUED THE TKOF EVEN THOUGH WE COULD HAVE EASILY ABORTED. (I THOUGHT WE WOULD BE ABLE TO CLOSE THE DOOR IN THE AIR. 3) I DID NOT STAY IN THE PATTERN AND LAND BECAUSE WE COULD NOT COM WITH ANYONE. WHAT I LEARNED: 1) ON A LOW WING PLANE IT IS VERY DIFFICULT (IMPOSSIBLE) TO SHUT THE DOOR IN FLT. 2) ABORT TKOFS IF ANYTHING UNTOWARD HAPPENS. 3) MEMORIZE LIGHT SIGNALS AND BROADCAST IN THE BLIND EVEN IF I CAN'T HEAR.

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.