Narrative:

Taxiing to runway 35 at manchester, nh, en route to lga, ny, with an edct of 22 mins past the hour. Decided to pull off to the side on what appeared to be a run-up area, to wait for edct. Quickly realized the 'run-up area' was beyond the hold short line for runway 35. We immediately turned back, and 'exited' the runway, holding short until tower cleared us for takeoff. The distance between the hold short line and the actual runway is significant and the aircraft was at no point, on the runway itself. I believe the contributing factors were two-fold. First, the geometry of the runway and taxiway gives the appearance of a run-up area or hammerhead at first glance. Future operations will see me more vigilant during taxi and all aspects of flight.

Google
 

Original NASA ASRS Text

Title: AN ACR FLC, FLYING A DHC8 AT MHT, RPTS TAXI PAST THE ACTIVE RWY HOLD SHORT LINE WHILE WAITING FOR DEP CLRNC, RESULTING IN A RWY INCURSION.

Narrative: TAXIING TO RWY 35 AT MANCHESTER, NH, ENRTE TO LGA, NY, WITH AN EDCT OF 22 MINS PAST THE HR. DECIDED TO PULL OFF TO THE SIDE ON WHAT APPEARED TO BE A RUN-UP AREA, TO WAIT FOR EDCT. QUICKLY REALIZED THE 'RUN-UP AREA' WAS BEYOND THE HOLD SHORT LINE FOR RWY 35. WE IMMEDIATELY TURNED BACK, AND 'EXITED' THE RWY, HOLDING SHORT UNTIL TWR CLRED US FOR TKOF. THE DISTANCE BTWN THE HOLD SHORT LINE AND THE ACTUAL RWY IS SIGNIFICANT AND THE ACFT WAS AT NO POINT, ON THE RWY ITSELF. I BELIEVE THE CONTRIBUTING FACTORS WERE TWO-FOLD. FIRST, THE GEOMETRY OF THE RWY AND TXWY GIVES THE APPEARANCE OF A RUN-UP AREA OR HAMMERHEAD AT FIRST GLANCE. FUTURE OPS WILL SEE ME MORE VIGILANT DURING TAXI AND ALL ASPECTS OF FLT.

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.