2 small aircraft's had an near midair collision in an uncontrolled airport traffic pattern.

Attributes
ACN	242533
Time
Date	199305
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bid
State Reference	RI
Altitude	msl bound lower : 1000 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	descent : approach other
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other other
Person 1
Affiliation	company : air taxi
Function	oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4100
ASRS Report	242533
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

On may/sun/93 at approximately PM30 hours local time, I was flying an small aircraft 1 from groton, ct, to block island, ri. It was day VFR and the visibility was unlimited. As I approached the island from the northwest at an altitude of 1000 ft MSL, I crossed the centerline of the departure end of runway 28, which was the active runway at the time, at approximately 2 1/2 mi from the airport and announced myself on unicom as approaching the west end of the island for an extended left downwind entry to runway 28. I had heard 1 airplane announce his departure on runway 28 and had that airplane in sight as he started his climb out. As I crossed inside the western shoreline of the island I had a near miss with an small aircraft 2 which I had not previously seen. The airplane passed off my left within approximately 200 ft at approximately the same altitude. The pilot of this aircraft then called on unicom frequency and said that I had cut him off. I asked what he was doing there, as it appeared he had been upwind in the downwind leg for runway 28. He replied he had been taking off. I had no further conversation with this pilot. As I had not seen the small aircraft 2 prior to the near miss I can only speculate that he had made a left turn after takeoff, then a right turn wbound, or that his airplane had been blown off centerline of the departure course of runway 28 as the wind was out of the northwest.

Original NASA ASRS Text

Title: 2 SMA'S HAD AN NMAC IN AN UNCTLED ARPT TFC PATTERN.

Narrative: ON MAY/SUN/93 AT APPROX PM30 HRS LCL TIME, I WAS FLYING AN SMA 1 FROM GROTON, CT, TO BLOCK ISLAND, RI. IT WAS DAY VFR AND THE VISIBILITY WAS UNLIMITED. AS I APCHED THE ISLAND FROM THE NW AT AN ALT OF 1000 FT MSL, I CROSSED THE CTRLINE OF THE DEP END OF RWY 28, WHICH WAS THE ACTIVE RWY AT THE TIME, AT APPROX 2 1/2 MI FROM THE ARPT AND ANNOUNCED MYSELF ON UNICOM AS APCHING THE W END OF THE ISLAND FOR AN EXTENDED L DOWNWIND ENTRY TO RWY 28. I HAD HEARD 1 AIRPLANE ANNOUNCE HIS DEP ON RWY 28 AND HAD THAT AIRPLANE IN SIGHT AS HE STARTED HIS CLBOUT. AS I CROSSED INSIDE THE WESTERN SHORELINE OF THE ISLAND I HAD A NEAR MISS WITH AN SMA 2 WHICH I HAD NOT PREVIOUSLY SEEN. THE AIRPLANE PASSED OFF MY L WITHIN APPROX 200 FT AT APPROX THE SAME ALT. THE PLT OF THIS ACFT THEN CALLED ON UNICOM FREQ AND SAID THAT I HAD CUT HIM OFF. I ASKED WHAT HE WAS DOING THERE, AS IT APPEARED HE HAD BEEN UPWIND IN THE DOWNWIND LEG FOR RWY 28. HE REPLIED HE HAD BEEN TAKING OFF. I HAD NO FURTHER CONVERSATION WITH THIS PLT. AS I HAD NOT SEEN THE SMA 2 PRIOR TO THE NEAR MISS I CAN ONLY SPECULATE THAT HE HAD MADE A L TURN AFTER TKOF, THEN A R TURN WBOUND, OR THAT HIS AIRPLANE HAD BEEN BLOWN OFF CTRLINE OF THE DEP COURSE OF RWY 28 AS THE WIND WAS OUT OF THE NW.

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.