2 small aircraft training aircraft experience near midair collision in uncontrolled traffic pattern ...

Attributes
ACN	632689
Time
Date	200409
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pvu.airport
State Reference	UT
Altitude	msl single value : 5300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : prc.tower
Operator	general aviation : instructional
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Flight Plan	None
Aircraft 2
Operator	general aviation : instructional
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	descent : intermediate altitude
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : instrument pilot : multi engine pilot : cfi pilot : commercial
Experience	flight time last 90 days : 6.7 flight time total : 345.4
ASRS Report	632689
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	conflict : nmac non adherence : published procedure other spatial deviation
Independent Detector	other flight crewb
Resolutory Action	flight crew : exited adverse environment flight crew : took precautionary avoidance action
Miss Distance	horizontal : 0 vertical : 100
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was involved in a near miss situation in the traffic pattern at the provo airport (pvu). I am an instructor and was with a new private pilot student. We entered the traffic pattern with a 45 degree entry to the downwind leg. While on the 45 degrees we were looking for traffic in the pattern. We saw one on crosswind and one on a late downwind getting ready to turn base. Apparently there was one more aircraft on downwind we did not see. On downwind we started our descent and as we called our turn to base another aircraft called back saying that we had cut in front of it and were about 100 ft below the other airplane. We never saw him. The pattern was busy and we may have heard radio calls from one airplane and assumed it was the one we were looking at. Evasive action was not required. We just exited the pattern to the east and set up for a re-entry. I think that some things which caused this occurrence was improper lookout and communication between the pilots of the 2 airplanes. I talked with the other pilot afterwards and he told me that he saw us on the 45 degrees but he didn't make any calls until we were right under him. Our airport is uncontrolled and with 3+ flight schools on the field the pattern can get very busy. This type of situation is preventable by using standardized procedures and being extra vigilant when in high traffic areas.

Original NASA ASRS Text

Title: 2 SMA TRAINING ACFT EXPERIENCE NMAC IN UNCTLED TFC PATTERN AT PVU.

Narrative: I WAS INVOLVED IN A NEAR MISS SIT IN THE TFC PATTERN AT THE PROVO ARPT (PVU). I AM AN INSTRUCTOR AND WAS WITH A NEW PVT PLT STUDENT. WE ENTERED THE TFC PATTERN WITH A 45 DEG ENTRY TO THE DOWNWIND LEG. WHILE ON THE 45 DEGS WE WERE LOOKING FOR TFC IN THE PATTERN. WE SAW ONE ON XWIND AND ONE ON A LATE DOWNWIND GETTING READY TO TURN BASE. APPARENTLY THERE WAS ONE MORE ACFT ON DOWNWIND WE DID NOT SEE. ON DOWNWIND WE STARTED OUR DSCNT AND AS WE CALLED OUR TURN TO BASE ANOTHER ACFT CALLED BACK SAYING THAT WE HAD CUT IN FRONT OF IT AND WERE ABOUT 100 FT BELOW THE OTHER AIRPLANE. WE NEVER SAW HIM. THE PATTERN WAS BUSY AND WE MAY HAVE HEARD RADIO CALLS FROM ONE AIRPLANE AND ASSUMED IT WAS THE ONE WE WERE LOOKING AT. EVASIVE ACTION WAS NOT REQUIRED. WE JUST EXITED THE PATTERN TO THE E AND SET UP FOR A RE-ENTRY. I THINK THAT SOME THINGS WHICH CAUSED THIS OCCURRENCE WAS IMPROPER LOOKOUT AND COM BTWN THE PLTS OF THE 2 AIRPLANES. I TALKED WITH THE OTHER PLT AFTERWARDS AND HE TOLD ME THAT HE SAW US ON THE 45 DEGS BUT HE DIDN'T MAKE ANY CALLS UNTIL WE WERE RIGHT UNDER HIM. OUR ARPT IS UNCTLED AND WITH 3+ FLT SCHOOLS ON THE FIELD THE PATTERN CAN GET VERY BUSY. THIS TYPE OF SIT IS PREVENTABLE BY USING STANDARDIZED PROCS AND BEING EXTRA VIGILANT WHEN IN HIGH TFC AREAS.

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 small aircraft training aircraft experience near midair collision in uncontrolled traffic pattern at pvu.