M20 pilot reports confusing runway 17L for taxiway F at dwh airport after being cleared to cross run...

Narrative:

I received a taxi clearance to hold short of a small runway paralleling the larger main runway. On the taxiway; I first saw the movement area markings which are similar to a hold short line. These markings include signage painted on the taxiway. I carefully reviewed the markings and saw the actual hold short line ahead. I pulled up to the hold short line and held short. There is no signage either painted on the taxiway or vertical; visible from the hold short line for the runway. The vertical sign for the runway is approximately 20 feet east of the hold short line and is not visible to a plane at the hold short line. There is no signage painted on the ground. After I was cleared to cross the runway; I unintentionally and inadvertently turned onto the runway instead. A few seconds later; the controller brought this to my attention. I apologized and said I would get off at the next taxiway; which I did. The controller did not express concern at that time. After I was given a takeoff clearance; my baggage door came open and I advised the tower; exited the runway; and advised ground when off the runway. After locking the baggage door; I then received a taxi clearance and a takeoff clearance. I took off under an instrument flight plan but the ceilings approximately 20 miles from the airport were higher than predicted; so I cancelled and continued VFR to another airport for lunch. After lunch; I returned to the airport where I had made the wrong turn; and was cleared to land. I landed and when I turned off on the taxiway; ground told me to call the tower. I did so and the controller asked my name and phone number. He said someone would call me. He said they were required to report it because they had to send an approaching aircraft around and it would probably be resolved with a talking to. As I turned off the runway; I saw an aircraft on approach approximately 3 miles out. I did not see the aircraft go-around and question whether the go-around was necessary.

Original NASA ASRS Text

Title: M20 pilot reports confusing Runway 17L for Taxiway F at DWH airport after being cleared to cross Runway 17L; causing an aircraft to go-around. When cleared for takeoff the baggage door opened requiring a rejected takeoff and stopping to latch the door.

Narrative: I received a taxi clearance to hold short of a small runway paralleling the larger main runway. On the taxiway; I first saw the movement area markings which are similar to a hold short line. These markings include signage painted on the taxiway. I carefully reviewed the markings and saw the actual hold short line ahead. I pulled up to the hold short line and held short. There is no signage either painted on the taxiway or vertical; visible from the hold short line for the runway. The vertical sign for the runway is approximately 20 feet east of the hold short line and is not visible to a plane at the hold short line. There is no signage painted on the ground. After I was cleared to cross the runway; I unintentionally and inadvertently turned onto the runway instead. A few seconds later; the Controller brought this to my attention. I apologized and said I would get off at the next taxiway; which I did. The Controller did not express concern at that time. After I was given a takeoff clearance; my baggage door came open and I advised the Tower; exited the runway; and advised ground when off the runway. After locking the baggage door; I then received a taxi clearance and a takeoff clearance. I took off under an instrument flight plan but the ceilings approximately 20 miles from the airport were higher than predicted; so I cancelled and continued VFR to another airport for lunch. After Lunch; I returned to the airport where I had made the wrong turn; and was cleared to land. I landed and when I turned off on the taxiway; ground told me to call the Tower. I did so and the Controller asked my name and phone number. He said someone would call me. He said they were required to report it because they had to send an approaching aircraft around and it would probably be resolved with a talking to. As I turned off the runway; I saw an aircraft on approach approximately 3 miles out. I did not see the aircraft go-around and question whether the go-around was necessary.

Data retrieved from NASA's ASRS site as of July 2013 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	1120717
Time
Date	201310
Local Time Of Day	0601-1200
Place
Locale Reference	DWH.Airport
State Reference	TX
Aircraft 1
Make Model Name	M-20 A Scotsman
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	Final Approach
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Commercial Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 1900 Flight Crew Type 600
Events
Anomaly	Conflict Ground Conflict Less Severe Deviation - Procedural Clearance Ground Incursion Runway
Miss Distance	Horizontal 18000 Vertical 1000

M20 pilot reports confusing runway 17L for taxiway F at dwh airport after being cleared to cross runway 17L; causing an aircraft to go-around. When cleared for takeoff the baggage door opened requiring a rejected takeoff and stopping to latch the door.