SR20 instructor pilot and student reported an airborne conflict shortly after takeoff with another l...

Attributes
ACN	1520726
Time
Date	201802
Local Time Of Day	1201-1800
Place
Locale Reference	CDC.Airport
State Reference	UT
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Person 1
Function	Instructor Check Pilot Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Commercial Flight Crew Instrument
Experience	Flight Crew Last 90 Days 180 Flight Crew Total 1130 Flight Crew Type 1110
Person 2
Function	Trainee
Qualification	Flight Crew Private Flight Crew Instrument
Events
Anomaly	Conflict Airborne Conflict Deviation - Procedural Published Material / Policy Ground Incursion Runway
Miss Distance	Horizontal 700 Vertical 20

Narrative:

We had a runway incursion with another aircraft. In the beginning we listened to the ASOS and [wind] was reported 030 at 06 kts. We also observed another aircraft landing runway 02 and then made a decision to taxi to runway 02. We were performing our run up short of 02 on delta and were listening to aircraft Y taking off runway 20 and made a call holding short runway 02. We then listened to the ASOS to figure out what the winds were doing a second time due to the wind sock showing about 5 knots out of the north; the ASOS reported from the north at 03 kts. We still decided to take the runway after clearing the area and were making calls with taking the runway. However; on takeoff about 10 feet off the ground we could see another aircraft who was also taking off; but on 20 and we both diverted to the right in opposite directions. After the close call we were looking to figure out how this could have happened and I noticed that we were broadcasting on the wrong frequency. We came to the conclusion that in the process of listening to the ASOS again; after we completed our runup; that the CTAF 123.0 was switched into standby and replaced with another frequency into the active side of comm 1.

Original NASA ASRS Text

Title: SR20 Instructor pilot and student reported an airborne conflict shortly after takeoff with another light aircraft departing on the opposite direction runway.

Narrative: We had a Runway incursion with another aircraft. In the beginning we listened to the ASOS and [wind] was reported 030 at 06 kts. We also observed another aircraft landing Runway 02 and then made a decision to taxi to Runway 02. We were performing our run up short of 02 on Delta and were listening to Aircraft Y taking off Runway 20 and made a call holding short Runway 02. We then listened to the ASOS to figure out what the winds were doing a second time due to the wind sock showing about 5 knots out of the north; the ASOS reported from the north at 03 kts. We still decided to take the Runway after clearing the area and were making calls with taking the Runway. However; on takeoff about 10 feet off the ground we could see another aircraft who was also taking off; but on 20 and we both diverted to the right in opposite directions. After the close call we were looking to figure out how this could have happened and I noticed that we were broadcasting on the wrong frequency. We came to the conclusion that in the process of listening to the ASOS again; after we completed our runup; that the CTAF 123.0 was switched into standby and replaced with another frequency into the active side of Comm 1.

Data retrieved from NASA's ASRS site 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.

SR20 instructor pilot and student reported an airborne conflict shortly after takeoff with another light aircraft departing on the opposite direction runway.