Near midair collision.

Attributes
ACN	317282
Time
Date	199509
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dkk
State Reference	NY
Altitude	agl bound lower : 100 agl bound upper : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing other
Route In Use	approach : visual
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	J3 Cub
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff ground : holding
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 40 flight time total : 11600 flight time type : 150
ASRS Report	317282
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac incursion : runway non adherence : far non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	Other
Miss Distance	horizontal : 200 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After dropping an aerial banner, I pulled up to enter downwind leg of traffic pattern for landing. When on final for banner drop, I observed a J-3 cub holding short of landing runway 33. When established on final approach I observed J-3 pull onto runway without looking for other traffic (my strobe and landing lights were on). My altitude was too low for an abrupt evasive maneuver, so I altered course to the right (east) to pass safely clear of the J-3 as he lifted off. After assuring a safe distance between J-3 and my aircraft, I executed a left turn to rejoin the downwind. I am convinced that the J-3 pilot did not check for a clear final approach before beginning his takeoff roll. I was broadcasting my position each pattern leg on unicom but assume he was non-radio as I did not hear any xmissions from him.

Original NASA ASRS Text

Title: NMAC.

Narrative: AFTER DROPPING AN AERIAL BANNER, I PULLED UP TO ENTER DOWNWIND LEG OF TFC PATTERN FOR LNDG. WHEN ON FINAL FOR BANNER DROP, I OBSERVED A J-3 CUB HOLDING SHORT OF LNDG RWY 33. WHEN ESTABLISHED ON FINAL APCH I OBSERVED J-3 PULL ONTO RWY WITHOUT LOOKING FOR OTHER TFC (MY STROBE AND LNDG LIGHTS WERE ON). MY ALT WAS TOO LOW FOR AN ABRUPT EVASIVE MANEUVER, SO I ALTERED COURSE TO THE R (E) TO PASS SAFELY CLR OF THE J-3 AS HE LIFTED OFF. AFTER ASSURING A SAFE DISTANCE BTWN J-3 AND MY ACFT, I EXECUTED A L TURN TO REJOIN THE DOWNWIND. I AM CONVINCED THAT THE J-3 PLT DID NOT CHK FOR A CLR FINAL APCH BEFORE BEGINNING HIS TKOF ROLL. I WAS BROADCASTING MY POS EACH PATTERN LEG ON UNICOM BUT ASSUME HE WAS NON-RADIO AS I DID NOT HEAR ANY XMISSIONS FROM HIM.

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.