Narrative:

I was departing tup airport on an instrument flight plan. After takeoff, I turned left to my assigned heading and about 1 min later I was on a collision course with a piper 140. I took evasive action and the flight continued uneventfully to wichita, ks. At tup airport holding on the taxiway for takeoff were 2 other planes in front of me -- a king air and a piper cherokee. I could tell that a new control tower operator was being trained. Departures were using runway 36. WX VFR, ceilings reported at 5000 ft broken. The king air was launched and then the piper cherokee. The cherokee was cleared to the north. My initial IFR clearance was radar vectors, a left turn to 270 degrees and an initial climb to 3000 ft. After liftoff, I turned left to my assigned heading. I was looking outside the cockpit. As I continued a slow climb passing 1500 ft to my assigned 3000 ft altitude, I all of a sudden noticed a piper 140 heading north that was directly in my flight path. I pushed the nose of my plane down. I then heard the piper 140 talking to tup tower advising them that they were taking pictures of the area. At this point, we (both planes) were approximately 3 mi west of tup airport. I was still on with tup tower and I advised tower that I was maneuvering under and behind the piper 140. Tower had not had a chance to talk yet. My flight continued uneventfully to wichita, ks. The new piper 140 seemed to be 'pop up traffic' in the vicinity of the airport. The piper 140 at least called the tower advising them about their 'picture taking.' it is my usual procedure to scan for traffic -- especially below 10000 ft. Had I not been exercising vigilance outside the cockpit that day, I surely would have slammed into this casual flying piper.

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Original NASA ASRS Text

Title: AC69 INITIATES EVASIVE MANEUVER ON IFR DEP FROM TUP WHEN OBSERVING A PA28 CALLING FOR ADVISORY 3 MI W OF ARPT AT SAME ALT.

Narrative: I WAS DEPARTING TUP ARPT ON AN INST FLT PLAN. AFTER TKOF, I TURNED L TO MY ASSIGNED HDG AND ABOUT 1 MIN LATER I WAS ON A COLLISION COURSE WITH A PIPER 140. I TOOK EVASIVE ACTION AND THE FLT CONTINUED UNEVENTFULLY TO WICHITA, KS. AT TUP ARPT HOLDING ON THE TXWY FOR TKOF WERE 2 OTHER PLANES IN FRONT OF ME -- A KING AIR AND A PIPER CHEROKEE. I COULD TELL THAT A NEW CTL TWR OPERATOR WAS BEING TRAINED. DEPS WERE USING RWY 36. WX VFR, CEILINGS RPTED AT 5000 FT BROKEN. THE KING AIR WAS LAUNCHED AND THEN THE PIPER CHEROKEE. THE CHEROKEE WAS CLRED TO THE N. MY INITIAL IFR CLRNC WAS RADAR VECTORS, A L TURN TO 270 DEGS AND AN INITIAL CLB TO 3000 FT. AFTER LIFTOFF, I TURNED L TO MY ASSIGNED HDG. I WAS LOOKING OUTSIDE THE COCKPIT. AS I CONTINUED A SLOW CLB PASSING 1500 FT TO MY ASSIGNED 3000 FT ALT, I ALL OF A SUDDEN NOTICED A PIPER 140 HDG N THAT WAS DIRECTLY IN MY FLT PATH. I PUSHED THE NOSE OF MY PLANE DOWN. I THEN HEARD THE PIPER 140 TALKING TO TUP TWR ADVISING THEM THAT THEY WERE TAKING PICTURES OF THE AREA. AT THIS POINT, WE (BOTH PLANES) WERE APPROX 3 MI W OF TUP ARPT. I WAS STILL ON WITH TUP TWR AND I ADVISED TWR THAT I WAS MANEUVERING UNDER AND BEHIND THE PIPER 140. TWR HAD NOT HAD A CHANCE TO TALK YET. MY FLT CONTINUED UNEVENTFULLY TO WICHITA, KS. THE NEW PIPER 140 SEEMED TO BE 'POP UP TFC' IN THE VICINITY OF THE ARPT. THE PIPER 140 AT LEAST CALLED THE TWR ADVISING THEM ABOUT THEIR 'PICTURE TAKING.' IT IS MY USUAL PROC TO SCAN FOR TFC -- ESPECIALLY BELOW 10000 FT. HAD I NOT BEEN EXERCISING VIGILANCE OUTSIDE THE COCKPIT THAT DAY, I SURELY WOULD HAVE SLAMMED INTO THIS CASUAL FLYING PIPER.

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.