C172 departs in front of landing aircraft causing a go around.

Attributes
ACN	596761
Time
Date	200310
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : tan.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff ground : position and hold ground : takeoff roll
Flight Plan	None
Aircraft 2
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing : go around
Flight Plan	None
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 1300 flight time type : 350
ASRS Report	596761
Person 2
Affiliation	other
Function	instruction : trainee
Qualification	pilot : private
Experience	flight time last 90 days : 28 flight time total : 170 flight time type : 3
ASRS Report	596763
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : executed go around
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

On the day in question there were 5 planes in the pattern. There was a cessna on a 1 mi final, so I decided that I had enough room for takeoff. I called takeoff on the roll, I wasn't expecting the aircraft on final to go around which increased in speed and closed the gap of safety. I should have waited for the plane to land, or at least asked him if I could take off ahead. That would probably have saved the plane from going around.

Original NASA ASRS Text

Title: C172 DEPARTS IN FRONT OF LNDG ACFT CAUSING A GAR.

Narrative: ON THE DAY IN QUESTION THERE WERE 5 PLANES IN THE PATTERN. THERE WAS A CESSNA ON A 1 MI FINAL, SO I DECIDED THAT I HAD ENOUGH ROOM FOR TKOF. I CALLED TKOF ON THE ROLL, I WASN'T EXPECTING THE ACFT ON FINAL TO GO AROUND WHICH INCREASED IN SPD AND CLOSED THE GAP OF SAFETY. I SHOULD HAVE WAITED FOR THE PLANE TO LAND, OR AT LEAST ASKED HIM IF I COULD TAKE OFF AHEAD. THAT WOULD PROBABLY HAVE SAVED THE PLANE FROM GOING AROUND.

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.