Air transportation safety investigation A25W0058
The occurrence
On 16 May 2025, the pilot of a Van’s Aircraft, Inc. RV-14A amateur-built aircraft was intending to conduct a maiden flight after construction. The pilot made an initial attempt to take off at 0714 Mountain Daylight Time (MDT) from the designated runway (17) at Calgary/Springbank Airport (CYBW), Alberta, but he aborted the initial attempt due to aircraft performance that was lower than anticipated during the take-off roll. The pilot then taxied back to the threshold of the runway and a 2nd attempt was made at 0724 MDT.