Near midair collision in the traffic pattern between a mooney and a cherokee at apf, fl.

Attributes
ACN	574138
Time
Date	200302
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : apf.airport
State Reference	FL
Altitude	msl single value : 1800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : apf.tower
Operator	general aviation : instructional
Make Model Name	M-20 J (201)
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Aircraft 2
Controlling Facilities	tower : apf.tower
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 28 flight time total : 2200 flight time type : 50
ASRS Report	574138
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	conflict : nmac non adherence : far non adherence : clearance other spatial deviation
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 10 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was serving as flight instructor in an M20J mooney. We had been doing takeoffs and lndgs in the pattern as part of training. Student (owner of aircraft) reported midfield at 1800 ft for right downwind for runway 5 at naples tower. Tower responded with 'roger.' almost immediately afterwards, I looked out right window and saw a cherokee heading right for us, same altitude, and about 50 ft away. Before I could grab the yoke and push, the cherokee veered sharply left and crossed behind our tail. I called tower and said, 'tower, we just had a close encounter up here!' the tower then shouted at the cherokee twice, 'cherokee, I told you to enter the pattern behind the mooney. I told you to enter the pattern behind the mooney!' I don't think there were any other planes in the pattern, but there could have been one other on a long final. Prevention: tower could have and should have been more vigilant in looking for the cherokee. Cherokee pilot should have found mooney (that had announced midfield right downwind) in the pattern and entered pattern on crosswind, not midfield. A slightly higher altitude on the part of the cherokee would have helped also.

Original NASA ASRS Text

Title: NMAC IN THE TFC PATTERN BTWN A MOONEY AND A CHEROKEE AT APF, FL.

Narrative: I WAS SERVING AS FLT INSTRUCTOR IN AN M20J MOONEY. WE HAD BEEN DOING TKOFS AND LNDGS IN THE PATTERN AS PART OF TRAINING. STUDENT (OWNER OF ACFT) RPTED MIDFIELD AT 1800 FT FOR R DOWNWIND FOR RWY 5 AT NAPLES TWR. TWR RESPONDED WITH 'ROGER.' ALMOST IMMEDIATELY AFTERWARDS, I LOOKED OUT R WINDOW AND SAW A CHEROKEE HEADING RIGHT FOR US, SAME ALT, AND ABOUT 50 FT AWAY. BEFORE I COULD GRAB THE YOKE AND PUSH, THE CHEROKEE VEERED SHARPLY L AND CROSSED BEHIND OUR TAIL. I CALLED TWR AND SAID, 'TWR, WE JUST HAD A CLOSE ENCOUNTER UP HERE!' THE TWR THEN SHOUTED AT THE CHEROKEE TWICE, 'CHEROKEE, I TOLD YOU TO ENTER THE PATTERN BEHIND THE MOONEY. I TOLD YOU TO ENTER THE PATTERN BEHIND THE MOONEY!' I DON'T THINK THERE WERE ANY OTHER PLANES IN THE PATTERN, BUT THERE COULD HAVE BEEN ONE OTHER ON A LONG FINAL. PREVENTION: TWR COULD HAVE AND SHOULD HAVE BEEN MORE VIGILANT IN LOOKING FOR THE CHEROKEE. CHEROKEE PLT SHOULD HAVE FOUND MOONEY (THAT HAD ANNOUNCED MIDFIELD R DOWNWIND) IN THE PATTERN AND ENTERED PATTERN ON XWIND, NOT MIDFIELD. A SLIGHTLY HIGHER ALT ON THE PART OF THE CHEROKEE WOULD HAVE HELPED ALSO.

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.