Narrative:

On jan/bb/95, I was in command of flight xx from san juan to antigua. I was operating on an IFR clearance in level flight at 4000 ft. At a distance of 19 DME on G-633 from anu VOR inbound to antigua. At the time this incident occurred, I was in VFR conditions with a cumulus cloud formation 1/2 mi ahead. I witnessed an aircraft emerge from the clouds ahead at my altitude on a collision course. Due to the proximity of our aircraft, I had no time to initiate an evasive maneuver. Fortunately we missed each other by an estimated horizontal distance of 200 ft. I had no time to initiate an evasive maneuver. Fortunately we missed each other by an estimated horizontal distance of 200 ft. I had no difficulty identing the aircraft as a twin otter. Just prior to this incident, ATC notified me of VFR traffic in my vicinity at 4500 ft. After landing I spoke with mr X of bird international airport tower. He informed the cc twin otter was operating VFR and should have been at the appropriate VFR altitude of 4500 ft. Obviously, by emerging from a cloud, the twin otter was not adhering to VFR, regardless of his altitude. This violation of FARS created a threat to not only my life but to those passenger on board the cc flight as well.

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Original NASA ASRS Text

Title: NMAC.

Narrative: ON JAN/BB/95, I WAS IN COMMAND OF FLT XX FROM SAN JUAN TO ANTIGUA. I WAS OPERATING ON AN IFR CLRNC IN LEVEL FLT AT 4000 FT. AT A DISTANCE OF 19 DME ON G-633 FROM ANU VOR INBOUND TO ANTIGUA. AT THE TIME THIS INCIDENT OCCURRED, I WAS IN VFR CONDITIONS WITH A CUMULUS CLOUD FORMATION 1/2 MI AHEAD. I WITNESSED AN ACFT EMERGE FROM THE CLOUDS AHEAD AT MY ALT ON A COLLISION COURSE. DUE TO THE PROX OF OUR ACFT, I HAD NO TIME TO INITIATE AN EVASIVE MANEUVER. FORTUNATELY WE MISSED EACH OTHER BY AN ESTIMATED HORIZ DISTANCE OF 200 FT. I HAD NO TIME TO INITIATE AN EVASIVE MANEUVER. FORTUNATELY WE MISSED EACH OTHER BY AN ESTIMATED HORIZ DISTANCE OF 200 FT. I HAD NO DIFFICULTY IDENTING THE ACFT AS A TWIN OTTER. JUST PRIOR TO THIS INCIDENT, ATC NOTIFIED ME OF VFR TFC IN MY VICINITY AT 4500 FT. AFTER LNDG I SPOKE WITH MR X OF BIRD INTL ARPT TWR. HE INFORMED THE CC TWIN OTTER WAS OPERATING VFR AND SHOULD HAVE BEEN AT THE APPROPRIATE VFR ALT OF 4500 FT. OBVIOUSLY, BY EMERGING FROM A CLOUD, THE TWIN OTTER WAS NOT ADHERING TO VFR, REGARDLESS OF HIS ALT. THIS VIOLATION OF FARS CREATED A THREAT TO NOT ONLY MY LIFE BUT TO THOSE PAX ON BOARD THE CC FLT AS WELL.

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.