C150 instructor and student, and a departing C172 had less than comfortable separation in jnx class ...

Attributes
ACN	579880
Time
Date	200304
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : jnx.airport
State Reference	NC
Altitude	msl single value : 700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Flight Plan	None
Aircraft 2
Make Model Name	Skyhawk 172/Cutlass 172
Flight Phase	climbout : takeoff ground : takeoff roll landing : missed approach
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 20 flight time total : 750 flight time type : 400
ASRS Report	579880
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	conflict : airborne less severe non adherence : far non adherence : published procedure other spatial deviation
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action other
Miss Distance	horizontal : 500 vertical : 3000
Supplementary
Problem Areas	Weather Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Winds on ASOS reported 290 degrees at 6 KTS, allowed student to choose runway. He chose runway 21, so we radioed our intention to cross midfield. After returning to the pattern on a 45 degree to the midpoint of the downwind leg for runway 21, we continued radioing our intentions on downwind, base, and final. After our turn to final, we were alerted by another aircraft on missed approach after an instrument approach to runway 3, that an aircraft was departing runway 3. There had been no radio calls to alert us. I took control of our aircraft and turned us upwind for runway 3. Factors contributing to the situation included ambiguous wind direction, lack of radio communication and situational awareness on the part of the other aircraft, and my own preoccupation with the student. Had I been more observant of the ground, I would have noticed the other aircraft taxiing to the opposite runway. In the future, a scan of the entire pattern including the ground will be a top priority.

Original NASA ASRS Text

Title: C150 INSTRUCTOR AND STUDENT, AND A DEPARTING C172 HAD LESS THAN COMFORTABLE SEPARATION IN JNX CLASS E.

Narrative: WINDS ON ASOS RPTED 290 DEGS AT 6 KTS, ALLOWED STUDENT TO CHOOSE RWY. HE CHOSE RWY 21, SO WE RADIOED OUR INTENTION TO CROSS MIDFIELD. AFTER RETURNING TO THE PATTERN ON A 45 DEG TO THE MIDPOINT OF THE DOWNWIND LEG FOR RWY 21, WE CONTINUED RADIOING OUR INTENTIONS ON DOWNWIND, BASE, AND FINAL. AFTER OUR TURN TO FINAL, WE WERE ALERTED BY ANOTHER ACFT ON MISSED APCH AFTER AN INST APCH TO RWY 3, THAT AN ACFT WAS DEPARTING RWY 3. THERE HAD BEEN NO RADIO CALLS TO ALERT US. I TOOK CTL OF OUR ACFT AND TURNED US UPWIND FOR RWY 3. FACTORS CONTRIBUTING TO THE SIT INCLUDED AMBIGUOUS WIND DIRECTION, LACK OF RADIO COM AND SITUATIONAL AWARENESS ON THE PART OF THE OTHER ACFT, AND MY OWN PREOCCUPATION WITH THE STUDENT. HAD I BEEN MORE OBSERVANT OF THE GND, I WOULD HAVE NOTICED THE OTHER ACFT TAXIING TO THE OPPOSITE RWY. IN THE FUTURE, A SCAN OF THE ENTIRE PATTERN INCLUDING THE GND WILL BE A TOP PRIORITY.

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.

C150 instructor and student, and a departing C172 had less than comfortable separation in jnx class east.