A C182 pilot crossed the hold line of the active runway at ism.

Attributes
ACN	434250
Time
Date	199904
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ism.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ism.tower tower : cyhm.tower
Operator	general aviation : personal
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 50 flight time total : 2400 flight time type : 700
ASRS Report	434250
Person 2
Affiliation	government : faa
Function	controller : ground
Qualification	controller : non radar
Events
Anomaly	incursion : runway non adherence : clearance
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:

While taxiing out, I received a taxi and hold short clearance which I acknowledged and held short of runway 15/33. While awaiting my IFR clearance, I thought I heard the controller clear me across runway 15/33 at the same time ready to read me my IFR clearance. At that time I told the controller to wait till I was on the other side before giving me my IFR clearance. As I started to move forward, the controller informed me he had not given me permission to cross the runway, at which time I stopped after having moved approximately 5 ft over the hold line. After an airplane had taken off he then cleared me to cross the runway. I apologized and he read me my IFR clearance while taxiing. I don't know if the controller wrote this up as a runway incursion or not.

Original NASA ASRS Text

Title: A C182 PLT CROSSED THE HOLD LINE OF THE ACTIVE RWY AT ISM.

Narrative: WHILE TAXIING OUT, I RECEIVED A TAXI AND HOLD SHORT CLRNC WHICH I ACKNOWLEDGED AND HELD SHORT OF RWY 15/33. WHILE AWAITING MY IFR CLRNC, I THOUGHT I HEARD THE CTLR CLR ME ACROSS RWY 15/33 AT THE SAME TIME READY TO READ ME MY IFR CLRNC. AT THAT TIME I TOLD THE CTLR TO WAIT TILL I WAS ON THE OTHER SIDE BEFORE GIVING ME MY IFR CLRNC. AS I STARTED TO MOVE FORWARD, THE CTLR INFORMED ME HE HAD NOT GIVEN ME PERMISSION TO CROSS THE RWY, AT WHICH TIME I STOPPED AFTER HAVING MOVED APPROX 5 FT OVER THE HOLD LINE. AFTER AN AIRPLANE HAD TAKEN OFF HE THEN CLRED ME TO CROSS THE RWY. I APOLOGIZED AND HE READ ME MY IFR CLRNC WHILE TAXIING. I DON'T KNOW IF THE CTLR WROTE THIS UP AS A RWY INCURSION OR NOT.

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.