2 C172-south see and avoid each other during a last min evasive action climb descent 9 mi west of co...

Attributes
ACN	471732
Time
Date	200005
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cos.airport
State Reference	CO
Altitude	msl single value : 8500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : cos.tracon tower : apa.tower
Operator	other
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Route In Use	departure : vfr
Flight Plan	VFR
Aircraft 2
Controlling Facilities	tracon : cos.tracon
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	None
Person 1
Affiliation	government : military
Function	instruction : instructor
Qualification	pilot : multi engine pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 80 flight time total : 770 flight time type : 682
ASRS Report	471732
Person 2
Affiliation	government : military
Function	instruction : trainee
Qualification	pilot : student
Events
Anomaly	conflict : airborne less severe non adherence : far
Independent Detector	atc equipment other atc equipment : radar other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 4500 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Our aircraft departed aff sbound for k1v6. Shortly after departure, we contacted cos approach. We leveled off at 8500 ft MSL, and proceeded on course for the west side of restr airspace R2601A/B. Shortly after leveling off we noticed another C172 slightly to the southeast of us. We kept aircraft in sight. It turned west and cut in front of us. Cos approach notified us of traffic 1 mi and 12 O'clock position. We notified approach that we had the traffic in sight. The aircraft proceeded wbound and leveled off at the same altitude. It then climbed slightly and began a left turn. As it completed 180 degrees of the turn it was coming right at us. It began to dive and we began to climb and I notified approach control that we were climbing to 9000 ft MSL to avoid traffic. Cos approach approved and we remained clear of the traffic.

Original NASA ASRS Text

Title: 2 C172-S SEE AND AVOID EACH OTHER DURING A LAST MIN EVASIVE ACTION CLB DSCNT 9 MI W OF COS, CO.

Narrative: OUR ACFT DEPARTED AFF SBOUND FOR K1V6. SHORTLY AFTER DEP, WE CONTACTED COS APCH. WE LEVELED OFF AT 8500 FT MSL, AND PROCEEDED ON COURSE FOR THE W SIDE OF RESTR AIRSPACE R2601A/B. SHORTLY AFTER LEVELING OFF WE NOTICED ANOTHER C172 SLIGHTLY TO THE SE OF US. WE KEPT ACFT IN SIGHT. IT TURNED W AND CUT IN FRONT OF US. COS APCH NOTIFIED US OF TFC 1 MI AND 12 O'CLOCK POS. WE NOTIFIED APCH THAT WE HAD THE TFC IN SIGHT. THE ACFT PROCEEDED WBOUND AND LEVELED OFF AT THE SAME ALT. IT THEN CLBED SLIGHTLY AND BEGAN A L TURN. AS IT COMPLETED 180 DEGS OF THE TURN IT WAS COMING RIGHT AT US. IT BEGAN TO DIVE AND WE BEGAN TO CLB AND I NOTIFIED APCH CTL THAT WE WERE CLBING TO 9000 FT MSL TO AVOID TFC. COS APCH APPROVED AND WE REMAINED CLR OF THE TFC.

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.

2 C172-south see and avoid each other during a last min evasive action climb descent 9 mi west of cos, co.