Departing C172 from dro airport fails to recognize his air-to-ground communication volume is turned down below audible level and conflicts with a landing, opposite direction DHC8.

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Attributes
ACN	566861
Time
Date	200211
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dro.airport
State Reference	CO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff ground : takeoff roll
Flight Plan	VFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	De Havilland Canada Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 20 flight time total : 90 flight time type : 90
ASRS Report	566861
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : nmac non adherence : published procedure non adherence : far other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 70 vertical : 150
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was taking off from durango airport, co, when I noticed aircraft Y landing. I reported my intentions and actions at all times as well as monitored the traffic on the appropriate frequency. I heard no feedback. I took off not knowing that there was an aircraft on final in the opposite direction. After liftoff, I immediately offset to my left and continued to climb. We cleared each other with considerable distance. I then did a radio check with ground operations, and discovered that the volume to my radio was fairly low.

Original NASA ASRS Text

Title: DEPARTING C172 FROM DRO ARPT FAILS TO RECOGNIZE HIS AIR-TO-GND COM VOLUME IS TURNED DOWN BELOW AUDIBLE LEVEL AND CONFLICTS WITH A LNDG, OPPOSITE DIRECTION DHC8.

Narrative: I WAS TAKING OFF FROM DURANGO ARPT, CO, WHEN I NOTICED ACFT Y LNDG. I RPTED MY INTENTIONS AND ACTIONS AT ALL TIMES AS WELL AS MONITORED THE TFC ON THE APPROPRIATE FREQ. I HEARD NO FEEDBACK. I TOOK OFF NOT KNOWING THAT THERE WAS AN ACFT ON FINAL IN THE OPPOSITE DIRECTION. AFTER LIFTOFF, I IMMEDIATELY OFFSET TO MY L AND CONTINUED TO CLB. WE CLRED EACH OTHER WITH CONSIDERABLE DISTANCE. I THEN DID A RADIO CHK WITH GND OPS, AND DISCOVERED THAT THE VOLUME TO MY RADIO WAS FAIRLY LOW.

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.