Traffic pattern conflict between arriving small aircraft and small transport at uncontrolled airport...

Attributes
ACN	119829
Time
Date	198908
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dro
State Reference	CO
Altitude	msl bound lower : 7500 msl bound upper : 7500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	other
Flight Plan	None
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach landing : go around
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Experience	flight time last 90 days : 60 flight time total : 300
ASRS Report	119829
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : far other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : unable other
Consequence	Other
Miss Distance	horizontal : 1000 vertical : 300
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Had a circle to land over runway 20 durango airport. Was reporting every 1000' descent and my intentions. Reported also downwind, base, (all left) and final. When my airplane was on final, I saw that one of xx airlines plane's was making a go around approximately 1000' on my right side. I had not heard him reporting positions, and he had probably not heard me. I checked my radio initially with unicom, and they could hardly hear me. Before this flight, I had checked my radio on the ground, and it was working satisfactorily. The reason for this occurrence was that my radio became bad during the flight. I always look carefully for other traffic when I fly at durango airport, because it is an uncontrolled airport, but I never saw xx airline's airplane before he did a go around. It is a common problem at durango airport that the airliners do not follow the published traffic pattern. That can cause situations like this. I am not saying that xx airlines didn't follow traffic pattern, I just became aware of him on final.

Original NASA ASRS Text

Title: TRAFFIC PATTERN CONFLICT BETWEEN ARRIVING SMA AND SMT AT UNCONTROLLED ARPT.

Narrative: HAD A CIRCLE TO LAND OVER RWY 20 DURANGO ARPT. WAS REPORTING EVERY 1000' DSCNT AND MY INTENTIONS. REPORTED ALSO DOWNWIND, BASE, (ALL LEFT) AND FINAL. WHEN MY AIRPLANE WAS ON FINAL, I SAW THAT ONE OF XX AIRLINES PLANE'S WAS MAKING A GO AROUND APPROX 1000' ON MY RIGHT SIDE. I HAD NOT HEARD HIM REPORTING POSITIONS, AND HE HAD PROBABLY NOT HEARD ME. I CHECKED MY RADIO INITIALLY WITH UNICOM, AND THEY COULD HARDLY HEAR ME. BEFORE THIS FLT, I HAD CHECKED MY RADIO ON THE GND, AND IT WAS WORKING SATISFACTORILY. THE REASON FOR THIS OCCURRENCE WAS THAT MY RADIO BECAME BAD DURING THE FLT. I ALWAYS LOOK CAREFULLY FOR OTHER TFC WHEN I FLY AT DURANGO ARPT, BECAUSE IT IS AN UNCONTROLLED ARPT, BUT I NEVER SAW XX AIRLINE'S AIRPLANE BEFORE HE DID A GO AROUND. IT IS A COMMON PROBLEM AT DURANGO ARPT THAT THE AIRLINERS DO NOT FOLLOW THE PUBLISHED TFC PATTERN. THAT CAN CAUSE SITUATIONS LIKE THIS. I AM NOT SAYING THAT XX AIRLINES DIDN'T FOLLOW TFC PATTERN, I JUST BECAME AWARE OF HIM ON FINAL.

Data retrieved from NASA's ASRS site as of August 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.