Corporate aircraft cleared for takeoff on runway 23L at gso was questioned after takeoff by the loca...

Narrative:

During taxi for takeoff to runway 23L at gso we were using radio two; at the end of the runway we switched to the number one radio and told the tower we were ready for takeoff. The tower cleared us for takeoff and the transmission was clear and understood by both crewmembers. At that time there was an aircraft that was in the pattern for landing who informed the tower they were going to make a short approach due to their cowling being loose. The PIC elected to wait to see if the tower wanted to cancel our takeoff clearance. After several seconds there was no response from the tower and since we had already passed the hold short line we decided to continue the takeoff. During the takeoff roll we heard the tower say they are on the roll you are cleared to land. Right after takeoff; before the sic could even get the gear retracted; the tower is calling so I answered and the controller wanted to know if I heard them cancel our takeoff clearance. Controller said they tried three times. I told controller we heard nothing; and we even waited a short period to see if they were going to call; we did not even hear a broken transmission. The controller did not even wait till we completed our takeoff to question us. This was not safe because it interrupted our flow after takeoff and is a critical time of flight. After switching to the departure frequency I explained we heard nothing from the tower when this happened. They explained that there is a dead spot at that part of the airport and there were more times that this has happened and they know this. We looked several times before we took the runway and could never see the aircraft that was on the approach.

Original NASA ASRS Text

Title: Corporate aircraft cleared for takeoff on Runway 23L at GSO was questioned after takeoff by the Local Controller; alleging their takeoff clearance had been canceled twice; reporter's claiming; no cancellation clearance was received.

Narrative: During taxi for takeoff to Runway 23L at GSO we were using radio two; at the end of the runway we switched to the number one radio and told the tower we were ready for takeoff. The tower cleared us for takeoff and the transmission was clear and understood by both crewmembers. At that time there was an aircraft that was in the pattern for landing who informed the Tower they were going to make a short approach due to their cowling being loose. The PIC elected to wait to see if the Tower wanted to cancel our takeoff clearance. After several seconds there was no response from the Tower and since we had already passed the hold short line we decided to continue the takeoff. During the takeoff roll we heard the Tower say they are on the roll you are cleared to land. Right after takeoff; before the SIC could even get the gear retracted; the Tower is calling so I answered and the Controller wanted to know if I heard them cancel our takeoff clearance. Controller said they tried three times. I told Controller we heard nothing; and we even waited a short period to see if they were going to call; we did not even hear a broken transmission. The Controller did not even wait till we completed our takeoff to question us. This was not safe because it interrupted our flow after takeoff and is a critical time of flight. After switching to the departure frequency I explained we heard nothing from the tower when this happened. They explained that there is a dead spot at that part of the airport and there were more times that this has happened and they know this. We looked several times before we took the runway and could never see the aircraft that was on the approach.

Data retrieved from NASA's ASRS site as of April 2012 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	852233
Time
Date	200909
Local Time Of Day	1201-1800
Place
Locale Reference	GSO.Airport
State Reference	NC
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Small Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Takeoff
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 110 Flight Crew Total 15000 Flight Crew Type 1600
Person 2
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 3000 Flight Crew Type 1500
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Less Severe

Corporate aircraft cleared for takeoff on runway 23L at gso was questioned after takeoff by the local controller; alleging their takeoff clearance had been canceled twice; reporter's claiming; no cancellation clearance was received.