A potential conflict ensues near the traffic pattern at ahn, GA. Student pilot reported '3 mi west' ...

Attributes
ACN	425295
Time
Date	199901
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ahn
State Reference	GA
Altitude	agl bound lower : 1000 agl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mmu
Operator	general aviation : instructional
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	other
Route In Use	approach : visual arrival other
Flight Plan	VFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude other
Route In Use	departure other enroute : on vectors
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor oversight : pic
Qualification	pilot : commercial pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 1630 flight time type : 400
ASRS Report	425295
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : clearance other spatial deviation
Independent Detector	other flight crewa
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 1500 vertical : 200
Supplementary
Air Traffic Incident	Pilot Deviation

Narrative:

We took off from L2U inbound for ahn. At position #1, +/-5 mi out, called ahn for landing. Instruction from ahn: call 3 mi west of ahn. At position #2 student said '3 mi' to ahn tower. The real position was more like 2 mi out. At position #3 the tower instructed 'enter left downwind runway 27.' student proceeded with turn into left crosswind! Apparently, tower had authority/authorized airplane on takeoff for an early right turnout, which resulted in a near miss. At position #4 I took airplane from student pilot and initiated evasive action to left (seemed direction in which greatest separation in shortest time could be obtained). While this was happening, tower spotted us (I believe) for the first time and instructed us for the first time and instructed us for a right downwind. I gave back plane to student after asking if he understood. Student said yes, and proceeded to position #5 in sketch (I thought he flew to position #5 for wider downwind). At position #6 he turned onto final runway 20, airplane on final to runway 27 (B in sketch). He notices this and aborts landing at position #7. I am flying the plane in attempt to re-enter downwind runway 27 but ahn tower reacts right away with instruction to land on runway 20. At position #8 we are landing on runway 20 as instructed. Tower asking for meeting. Visited tower manager. No further action after talk.

Original NASA ASRS Text

Title: A POTENTIAL CONFLICT ENSUES NEAR THE TFC PATTERN AT AHN, GA. STUDENT PLT RPTED '3 MI W' AT A 2 MI POINT. DEP TFC CONFLICT.

Narrative: WE TOOK OFF FROM L2U INBOUND FOR AHN. AT POS #1, +/-5 MI OUT, CALLED AHN FOR LNDG. INSTRUCTION FROM AHN: CALL 3 MI W OF AHN. AT POS #2 STUDENT SAID '3 MI' TO AHN TWR. THE REAL POS WAS MORE LIKE 2 MI OUT. AT POS #3 THE TWR INSTRUCTED 'ENTER L DOWNWIND RWY 27.' STUDENT PROCEEDED WITH TURN INTO L XWIND! APPARENTLY, TWR HAD AUTH AIRPLANE ON TKOF FOR AN EARLY R TURNOUT, WHICH RESULTED IN A NEAR MISS. AT POS #4 I TOOK AIRPLANE FROM STUDENT PLT AND INITIATED EVASIVE ACTION TO L (SEEMED DIRECTION IN WHICH GREATEST SEPARATION IN SHORTEST TIME COULD BE OBTAINED). WHILE THIS WAS HAPPENING, TWR SPOTTED US (I BELIEVE) FOR THE FIRST TIME AND INSTRUCTED US FOR THE FIRST TIME AND INSTRUCTED US FOR A R DOWNWIND. I GAVE BACK PLANE TO STUDENT AFTER ASKING IF HE UNDERSTOOD. STUDENT SAID YES, AND PROCEEDED TO POS #5 IN SKETCH (I THOUGHT HE FLEW TO POS #5 FOR WIDER DOWNWIND). AT POS #6 HE TURNED ONTO FINAL RWY 20, AIRPLANE ON FINAL TO RWY 27 (B IN SKETCH). HE NOTICES THIS AND ABORTS LNDG AT POS #7. I AM FLYING THE PLANE IN ATTEMPT TO RE-ENTER DOWNWIND RWY 27 BUT AHN TWR REACTS RIGHT AWAY WITH INSTRUCTION TO LAND ON RWY 20. AT POS #8 WE ARE LNDG ON RWY 20 AS INSTRUCTED. TWR ASKING FOR MEETING. VISITED TWR MGR. NO FURTHER ACTION AFTER TALK.

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.

A potential conflict ensues near the traffic pattern at ahn, GA. Student pilot reported '3 mi west' at a 2 mi point. Departure traffic conflict.