<< >> NASA ASRS Report 452084, October 1999

Instructor pilot fails to fly clearance as given by tower and then complains of close encounter with another aircraft.

Attributes
ACN	452084
Time
Date	199910
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cma.airport
State Reference	CA
Altitude	agl single value : 900
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : cma.tower
Operator	general aviation : instructional
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Aircraft 2
Controlling Facilities	tower : cma.tower
Make Model Name	Duchess 76
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 3600 flight time type : 100
ASRS Report	452084
Person 2
Affiliation	other
Function	instruction : trainee
Qualification	pilot : student
Events
Anomaly	conflict : airborne critical non adherence : published procedure non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Miss Distance	horizontal : 0 vertical : 300
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was flying with a student pilot in the left traffic pattern for runway 26 at 900 ft. As our aircraft approached las posas road, camarillo tower instructed us to 'do a right 360 degree and re-enter traffic at the bean barns.' we assumed that tower meant to do a 180 degree and head for the re-entry point. We complied as such, flying to the bean barns and making a right turn of approximately 135 degrees onto the downwind. At this point I noticed an aircraft flash by above me at what I estimated to be 300 ft or less. I saw the aircraft turn and head on a parallel course about 1/4 to 1/2 mi ahead and to the right. My student did not see the other aircraft. At no time did tower call the traffic. It would appear that they directed us to turn in front of this traffic. I am very confident that a review of the tower tapes will show that tower was unaware of this developing situation or that it even happened.

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Original NASA ASRS Text

Title: INSTRUCTOR PLT FAILS TO FLY CLRNC AS GIVEN BY TWR AND THEN COMPLAINS OF CLOSE ENCOUNTER WITH ANOTHER ACFT.

Narrative: I WAS FLYING WITH A STUDENT PLT IN THE L TFC PATTERN FOR RWY 26 AT 900 FT. AS OUR ACFT APCHED LAS POSAS ROAD, CAMARILLO TWR INSTRUCTED US TO 'DO A R 360 DEG AND RE-ENTER TFC AT THE BEAN BARNS.' WE ASSUMED THAT TWR MEANT TO DO A 180 DEG AND HEAD FOR THE RE-ENTRY POINT. WE COMPLIED AS SUCH, FLYING TO THE BEAN BARNS AND MAKING A R TURN OF APPROX 135 DEGS ONTO THE DOWNWIND. AT THIS POINT I NOTICED AN ACFT FLASH BY ABOVE ME AT WHAT I ESTIMATED TO BE 300 FT OR LESS. I SAW THE ACFT TURN AND HEAD ON A PARALLEL COURSE ABOUT 1/4 TO 1/2 MI AHEAD AND TO THE R. MY STUDENT DID NOT SEE THE OTHER ACFT. AT NO TIME DID TWR CALL THE TFC. IT WOULD APPEAR THAT THEY DIRECTED US TO TURN IN FRONT OF THIS TFC. I AM VERY CONFIDENT THAT A REVIEW OF THE TWR TAPES WILL SHOW THAT TWR WAS UNAWARE OF THIS DEVELOPING SIT OR THAT IT EVEN HAPPENED.

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.