A C-172 CFI, struggling with a string of aircraft problems, departed from bhm without clearance.

Attributes
ACN	585294
Time
Date	200304
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bhm.airport
State Reference	AL
Altitude	agl single value : 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 : takeoff roll
Flight Plan	None
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : instrument pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 750 flight time type : 500
ASRS Report	585294
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	non adherence : far non adherence : published procedure non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I am a flight instructor at a busy flight school at birmingham international. One morning, my student and I were preparing for departure for a local IFR training flight. From the beginning, we were rushed: swapping airplanes after finding problems and trying to complete the flight in time for my student to get to work, etc. We were cleared to taxi to runway 24 at taxiway G and we held short for our run-up and pre takeoff checks. The student was taking a long time to accomplish the checklist and we had another aircraft waiting. Tower asked us how long we'd be. We said we were ready. We were cleared into position and hold, which we did. My student thought he had a malfunction with the door lock, but it was working properly. The other aircraft taxied into position behind us. I heard tower talking to an aircraft on final for our runway and checked with tower whether or not we were cleared to go. At that moment, the radio on the aircraft failed. I was troubleshooting the radio when I heard,

Original NASA ASRS Text

Title: A C-172 CFI, STRUGGLING WITH A STRING OF ACFT PROBS, DEPARTED FROM BHM WITHOUT CLRNC.

Narrative: I AM A FLT INSTRUCTOR AT A BUSY FLT SCHOOL AT BIRMINGHAM INTL. ONE MORNING, MY STUDENT AND I WERE PREPARING FOR DEP FOR A LOCAL IFR TRAINING FLT. FROM THE BEGINNING, WE WERE RUSHED: SWAPPING AIRPLANES AFTER FINDING PROBS AND TRYING TO COMPLETE THE FLT IN TIME FOR MY STUDENT TO GET TO WORK, ETC. WE WERE CLRED TO TAXI TO RWY 24 AT TXWY G AND WE HELD SHORT FOR OUR RUN-UP AND PRE TKOF CHKS. THE STUDENT WAS TAKING A LONG TIME TO ACCOMPLISH THE CHKLIST AND WE HAD ANOTHER ACFT WAITING. TWR ASKED US HOW LONG WE'D BE. WE SAID WE WERE READY. WE WERE CLRED INTO POS AND HOLD, WHICH WE DID. MY STUDENT THOUGHT HE HAD A MALFUNCTION WITH THE DOOR LOCK, BUT IT WAS WORKING PROPERLY. THE OTHER ACFT TAXIED INTO POS BEHIND US. I HEARD TWR TALKING TO AN ACFT ON FINAL FOR OUR RWY AND CHKED WITH TWR WHETHER OR NOT WE WERE CLRED TO GO. AT THAT MOMENT, THE RADIO ON THE ACFT FAILED. I WAS TROUBLESHOOTING THE RADIO WHEN I HEARD,

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.