<< >> NASA ASRS Report 380100, September 1997

C172 is cleared to taxi from ramp area but taxies onto taxiway without clearance. Clearance was for an intersection takeoff and student was confused.

Attributes
ACN	380100
Time
Date	199709
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cvg
State Reference	OH
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	ground other : taxi
Flight Plan	VFR
Person 1
Affiliation	Other
Function	instruction : instructor oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 80 flight time total : 920 flight time type : 450
ASRS Report	380100
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : student
Events
Anomaly	non adherence : clearance other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : insufficient time other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I received clearance to taxi from the south ramp at the greater cincinnati airport to runway 27 via taxiway M. The event occurred when my student, while somewhat confused, crossed the ILS critical line at intersection M4. Ground control asked us prior to crossing the hold line if we would like an intersection takeoff. My student gave an affirmative answer (with my consent). However, the ground controller directed us not to cross the yellow line that (we) 'are crossing now.' we were then instructed to contact the tower, who then cleared us to taxi into position and hold for runway 27. The mistake was realized as soon as the controller communicated with us. The student was receiving his first dual lesson to a class C airport at the time of the deviation. The problem could easily have been avoided had we taxied to the very beginning of the runway in lieu of committing to an intersection takeoff.

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Original NASA ASRS Text

Title: C172 IS CLRED TO TAXI FROM RAMP AREA BUT TAXIES ONTO TXWY WITHOUT CLRNC. CLRNC WAS FOR AN INTXN TKOF AND STUDENT WAS CONFUSED.

Narrative: I RECEIVED CLRNC TO TAXI FROM THE S RAMP AT THE GREATER CINCINNATI ARPT TO RWY 27 VIA TXWY M. THE EVENT OCCURRED WHEN MY STUDENT, WHILE SOMEWHAT CONFUSED, CROSSED THE ILS CRITICAL LINE AT INTXN M4. GND CTL ASKED US PRIOR TO XING THE HOLD LINE IF WE WOULD LIKE AN INTXN TKOF. MY STUDENT GAVE AN AFFIRMATIVE ANSWER (WITH MY CONSENT). HOWEVER, THE GND CTLR DIRECTED US NOT TO CROSS THE YELLOW LINE THAT (WE) 'ARE XING NOW.' WE WERE THEN INSTRUCTED TO CONTACT THE TWR, WHO THEN CLRED US TO TAXI INTO POS AND HOLD FOR RWY 27. THE MISTAKE WAS REALIZED AS SOON AS THE CTLR COMMUNICATED WITH US. THE STUDENT WAS RECEIVING HIS FIRST DUAL LESSON TO A CLASS C ARPT AT THE TIME OF THE DEV. THE PROB COULD EASILY HAVE BEEN AVOIDED HAD WE TAXIED TO THE VERY BEGINNING OF THE RWY IN LIEU OF COMMITTING TO AN INTXN TKOF.

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.