Instructor with student taxies across active runway without clearance.

Attributes
ACN	188646
Time
Date	199109
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mkg
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	ground other : taxi
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 140 flight time total : 950 flight time type : 900
ASRS Report	188646
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Events
Anomaly	conflict : ground critical incursion : runway non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

At the beginning of a dual flight with a commercial student, we taxied across an active runway without clearance. The taxi clearance that ATC gave us was, 'taxi to runway 32 hold short runway 24.' the student read back, 'runway 32 hold short...' neither one of us heard ATC say, 'runway 24,' due probably, to some radio interference we were receiving. At the end of the student's readback the controller said, 'that is correct.' both the student and I understood we were to taxi to runway 32 and hold short of runway 32. Upon taxiing across runway 24 the controller told us we were supposed to hold short of 24. At that same time a commuter airline was departing runway 24 and flew over the top of us. Contributing factors. Radio interference. Not clarifying taxi instructions due to 1. Controller not correcting the readback. Instructor and student not visually checking both directions before crossing runway. Student stressed from bad day at work. Instructor not paying close enough attention to taxi instructions.

Original NASA ASRS Text

Title: INSTRUCTOR WITH STUDENT TAXIES ACROSS ACTIVE RWY WITHOUT CLRNC.

Narrative: AT THE BEGINNING OF A DUAL FLT WITH A COMMERCIAL STUDENT, WE TAXIED ACROSS AN ACTIVE RWY WITHOUT CLRNC. THE TAXI CLRNC THAT ATC GAVE US WAS, 'TAXI TO RWY 32 HOLD SHORT RWY 24.' THE STUDENT READ BACK, 'RWY 32 HOLD SHORT...' NEITHER ONE OF US HEARD ATC SAY, 'RWY 24,' DUE PROBABLY, TO SOME RADIO INTERFERENCE WE WERE RECEIVING. AT THE END OF THE STUDENT'S READBACK THE CTLR SAID, 'THAT IS CORRECT.' BOTH THE STUDENT AND I UNDERSTOOD WE WERE TO TAXI TO RWY 32 AND HOLD SHORT OF RWY 32. UPON TAXIING ACROSS RWY 24 THE CTLR TOLD US WE WERE SUPPOSED TO HOLD SHORT OF 24. AT THAT SAME TIME A COMMUTER AIRLINE WAS DEPARTING RWY 24 AND FLEW OVER THE TOP OF US. CONTRIBUTING FACTORS. RADIO INTERFERENCE. NOT CLARIFYING TAXI INSTRUCTIONS DUE TO 1. CTLR NOT CORRECTING THE READBACK. INSTRUCTOR AND STUDENT NOT VISUALLY CHKING BOTH DIRECTIONS BEFORE XING RWY. STUDENT STRESSED FROM BAD DAY AT WORK. INSTRUCTOR NOT PAYING CLOSE ENOUGH ATTN TO TAXI INSTRUCTIONS.

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.