Narrative:

The [student pilot] was beginning a soft-field takeoff on runway 4 at ssi when she observed the diamond twin-star in the flare for landing runway 22 at the 1000 foot marker. I took the controls and was able to slow the airplane and exit the runway to avoid a collision. I followed the twin-star to the ramp to talk with the pilot about what had just occurred. He was a [local pilot] and admitted he had been on the wrong CTAF frequency.

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Original NASA ASRS Text

Title: C172 instructor pilot reported taking control on the takeoff roll and exiting the runway to avoid a collision with landing traffic coming from the opposite direction at the non-towered SSI airport.

Narrative: The [student pilot] was beginning a soft-field takeoff on runway 4 at SSI when she observed the Diamond Twin-star in the flare for landing runway 22 at the 1000 foot marker. I took the controls and was able to slow the airplane and exit the runway to avoid a collision. I followed the Twin-star to the ramp to talk with the pilot about what had just occurred. He was a [local pilot] and admitted he had been on the wrong CTAF frequency.

Data retrieved from NASA's ASRS site 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.