A C210 pilot reported a 5 minute clearance void time led to announcing takeoff intentions on the CTA...

Narrative:

I was departing on an instrument flight plan. I received my clearance from approach while parked at the FBO; and was told to hold short of runway 9. During taxi to runway 9; I was monitoring approach and CTAF simultaneously on separate radios. After stopping before the hold short markings for runway 9; I advised approach that I was number one for departure runway 9. Approach advised me that there was a king air on an instrument approach to runway 9; and cleared me for departure; 'void if not off in five minutes'. Although monitoring both frequencies; I overheard the king air calling final on the approach; but did not hear the distance. Because of the short void time; I incorrectly assumed that the king air was farther out and that I had a short time to depart. I switched frequencies and called a departure on runway 9 over the CTAF; and rolled past the hold short markings to begin takeoff. This transmission was quickly met with the king air pilot calling his position over the runway; and announcing his intention to go-around. I aborted takeoff and announced my intent to abort on CTAF; then contacted approach to relay this information.as PIC; I should have more closely monitored the position announcements of the king air. With this information; I would have waited for the king air to land; and still have been within my five minute void. In the future; I will request guidance from the controlling authority to clarify any vague information; and monitor CTAF frequencies at uncontrolled airports more closely.

Original NASA ASRS Text

Title: A C210 pilot reported a 5 minute clearance void time led to announcing takeoff intentions on the CTAF and hearing a King Air pilot announce a go around on short final.

Narrative: I was departing on an instrument flight plan. I received my clearance from Approach while parked at the FBO; and was told to hold short of Runway 9. During taxi to Runway 9; I was monitoring Approach and CTAF simultaneously on separate radios. After stopping before the hold short markings for Runway 9; I advised Approach that I was number one for departure Runway 9. Approach advised me that there was a King Air on an instrument approach to Runway 9; and cleared me for departure; 'void if not off in five minutes'. Although monitoring both frequencies; I overheard the King Air calling final on the approach; but did not hear the distance. Because of the short void time; I incorrectly assumed that the King Air was farther out and that I had a short time to depart. I switched frequencies and called a departure on Runway 9 over the CTAF; and rolled past the hold short markings to begin takeoff. This transmission was quickly met with the King Air pilot calling his position over the runway; and announcing his intention to go-around. I aborted takeoff and announced my intent to abort on CTAF; then contacted Approach to relay this information.As PIC; I should have more closely monitored the position announcements of the King Air. With this information; I would have waited for the King Air to land; and still have been within my five minute void. In the future; I will request guidance from the controlling authority to clarify any vague information; and monitor CTAF frequencies at uncontrolled airports more closely.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1428293
Time
Date	201702
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C 210D
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Route In Use	Direct
Flight Plan	IFR
Aircraft 2
Make Model Name	King Air C90 E90
Flight Phase	Landing
Flight Plan	IFR
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Instrument Flight Crew Private
Experience	Flight Crew Last 90 Days 12 Flight Crew Total 377 Flight Crew Type 193
Events
Anomaly	Conflict Ground Conflict Critical Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 0 Vertical 1000

A C210 pilot reported a 5 minute clearance void time led to announcing takeoff intentions on the CTAF and hearing a king air pilot announce a go around on short final.