C182 pilot arriving tpf runway 17 reports near midair collision with columbia 400 departing runway 3...

Narrative:

I had completed an instrument training flight with a senior flight instructor. As we approached the airport; I removed the hood and listened to the AWOS. Winds were 220 at 15 with gusts to 18; so we chose runway 17 (runway 03/21 is closed by NOTAM due to construction). The unicom/CTAF frequency at tpf changed from 122.8 to 122.725 on june 1; 2009; so we made position reports on the new frequency. It should be noted that this frequency change occurred prior the publication on charts or AFD; but was posted in a NOTAM and also included on the AWOS message. At approximately 350' AGL and 1000' from the threshold of runway 17; I saw an aircraft rotating upward from the intersection of 17/35 and 03/21 and coming directly at us (departing runway 35). I took evasive action to the right and executed a go-around. Once established on the crosswind leg; we called the other aircraft on 122.8 and informed them they were on the wrong frequency (but did not mention they were taking off downwind). The other aircraft departed the area. Upon landing; a maintenance supervisor approached and said he witnessed the near-miss; and had been listening to our approach on 122.725. He was shocked by the presence of the other aircraft and noted the tail number. Other witnesses on the ground noticed the aircraft on approach to runway 35 and coming over the threshold at fairly high speed. Speculation is that the columbia 400 could not stop on the short (2;688') runway with a tailwind; and decided to go-around after touching down.

Original NASA ASRS Text

Title: C182 pilot arriving TPF Runway 17 reports NMAC with Columbia 400 departing Runway 35 downwind. CTAF frequency at this airport had recently changed and the Columbia 400 pilot was using the old frequency to self announce.

Narrative: I had completed an instrument training flight with a senior flight instructor. As we approached the airport; I removed the hood and listened to the AWOS. Winds were 220 at 15 with gusts to 18; so we chose Runway 17 (Runway 03/21 is closed by NOTAM due to construction). The UNICOM/CTAF frequency at TPF changed from 122.8 to 122.725 on June 1; 2009; so we made position reports on the new frequency. It should be noted that this frequency change occurred PRIOR the publication on charts or AFD; but was posted in a NOTAM and also included on the AWOS message. At approximately 350' AGL and 1000' from the threshold of Runway 17; I saw an aircraft rotating upward from the intersection of 17/35 and 03/21 and coming directly at us (departing Runway 35). I took evasive action to the right and executed a go-around. Once established on the crosswind leg; we called the other aircraft on 122.8 and informed them they were on the wrong frequency (but did not mention they were taking off downwind). The other aircraft departed the area. Upon landing; a maintenance supervisor approached and said he witnessed the near-miss; and had been listening to our approach on 122.725. He was shocked by the presence of the other aircraft and noted the tail number. Other witnesses on the ground noticed the aircraft on approach to Runway 35 and coming over the threshold at fairly high speed. Speculation is that the Columbia 400 could not stop on the short (2;688') runway with a tailwind; and decided to go-around after touching down.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	842704
Time
Date	200907
Local Time Of Day	1201-1800
Place
Locale Reference	TPF.Airport
State Reference	FL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	None
Aircraft 2
Make Model Name	Cessna 400
Flight Phase	Takeoff
Person 1
Function	Trainee Pilot Flying
Qualification	Flight Crew Private
Experience	Flight Crew Last 90 Days 15.6 Flight Crew Total 195 Flight Crew Type 40.3
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 300 Vertical 0

C182 pilot arriving tpf runway 17 reports near midair collision with columbia 400 departing runway 35 downwind. CTAF frequency at this airport had recently changed and the columbia 400 pilot was using the old frequency to self announce.