Small Aircraft; High Wing; 1 Eng; Fixed Gear
Flight Crew Multiengine; Flight Crew Flight Instructor; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Last 90 Days 150; Flight Crew Total 30000; Flight Crew Type 4000
Communication Breakdown
Conflict Ground Conflict; Less Severe; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Incursion Runway
Air Traffic Control Separated Traffic
Human Factors; Procedure; Airspace Structure
Instructor and Student held short of Runway 25 at Merrill Field. Student dialed in the wrong frequency 126.8 (Lake Hood Towers frequency) on the left side of the instrument panel which is in front of the student and should have been frequency 126.0. The instructor did not notice that the wrong frequency was entered. The tower issued takeoff instructions to the instructor and student and when they entered the runway someone said to stop. Another aircraft was on final to Runway 25 at Merrill Field and went around. I would recommend that the frequency for Lake Hood and Merrill be changed so this mistake would not happen again. Also positioning the airplane to face the final traffic would have prevented this incident from occurring.
Instructor pilot doesn't see that student has wrong frequency selected and aircraft enters runway and aircraft goes around because student had selected another Tower's frequency.