Just after takeoff from ptn, a pilot has an near midair collision with an ultralight.

Attributes
ACN	628015
Time
Date	200408
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ptn.airport
State Reference	LA
Altitude	agl single value : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Helicopter
Operating Under FAR Part	Part 135
Flight Phase	climbout : initial
Route In Use	departure : vfr
Flight Plan	VFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Ultralight
Operating Under FAR Part	Part 91
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 230 flight time total : 3370 flight time type : 530
ASRS Report	628015
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 150 vertical : 10
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After announcing on CTAF 123.05 my intention to take off to the southwest, on climb out and clearing the tree tops, I saw an ultralight sbound. I then turned right to go behind the ultralight. The ultralight banked left and then banked further right avoiding collision by 150 ft horizontally and about 10 ft vertically.

Original NASA ASRS Text

Title: JUST AFTER TKOF FROM PTN, A PLT HAS AN NMAC WITH AN ULTRALIGHT.

Narrative: AFTER ANNOUNCING ON CTAF 123.05 MY INTENTION TO TAKE OFF TO THE SW, ON CLBOUT AND CLRING THE TREE TOPS, I SAW AN ULTRALIGHT SBOUND. I THEN TURNED R TO GO BEHIND THE ULTRALIGHT. THE ULTRALIGHT BANKED L AND THEN BANKED FURTHER R AVOIDING COLLISION BY 150 FT HORIZLY AND ABOUT 10 FT VERTLY.

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.