Pilot exceeds given void time on takeoff.

Attributes
ACN	151618
Time
Date	199007
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 5y1
State Reference	MI
Altitude	msl bound lower : 670 msl bound upper : 3000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : yyz
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time total : 490
ASRS Report	151618
Person 2
Affiliation	government other
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : far other anomaly other other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was at 5y1 which was overcast. I called green bay flight service for IFR clearance. I copied the clearance with a release time of xx:25Z. I had told the briefer I needed 15 min to get into the plane. When I got the clearance he had forgotten the transponder code so had to get it. I thought my void time was xx:40Z so I took of at xx:30Z and contacted toronto approach at xx:35 as soon as airborne. It was at that time they told me that my void time was xx:25Z and I had violated another aircraft's airspace. Fortunately it was VFR at 1500' above the airport. I never saw the other airplane. Problem. When I contacted the FSS at xx:00 it took 15-20 min to get my clearance. I copied down the xx:25 as my release time and since I had told him it would take 15 min to get into the air I assumed this was my release time plus 10 mins. It was a clear misunderstanding of the clearance.

Original NASA ASRS Text

Title: PLT EXCEEDS GIVEN VOID TIME ON TKOF.

Narrative: I WAS AT 5Y1 WHICH WAS OVCST. I CALLED GREEN BAY FLT SVC FOR IFR CLRNC. I COPIED THE CLRNC WITH A RELEASE TIME OF XX:25Z. I HAD TOLD THE BRIEFER I NEEDED 15 MIN TO GET INTO THE PLANE. WHEN I GOT THE CLRNC HE HAD FORGOTTEN THE XPONDER CODE SO HAD TO GET IT. I THOUGHT MY VOID TIME WAS XX:40Z SO I TOOK OF AT XX:30Z AND CONTACTED TORONTO APCH AT XX:35 AS SOON AS AIRBORNE. IT WAS AT THAT TIME THEY TOLD ME THAT MY VOID TIME WAS XX:25Z AND I HAD VIOLATED ANOTHER ACFT'S AIRSPACE. FORTUNATELY IT WAS VFR AT 1500' ABOVE THE ARPT. I NEVER SAW THE OTHER AIRPLANE. PROBLEM. WHEN I CONTACTED THE FSS AT XX:00 IT TOOK 15-20 MIN TO GET MY CLRNC. I COPIED DOWN THE XX:25 AS MY RELEASE TIME AND SINCE I HAD TOLD HIM IT WOULD TAKE 15 MIN TO GET INTO THE AIR I ASSUMED THIS WAS MY RELEASE TIME PLUS 10 MINS. IT WAS A CLR MISUNDERSTANDING OF THE CLRNC.

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.