Interstate S-1B1 — registry & accident history
Compiled from FAA & NTSB records · as of Jul 24, 2026
There are 136 Interstate S-1B1 airframes on record (built 1941–1993), 22 currently registered. 2 have one or more NTSB accident records (2 records total). Data as of Jul 24, 2026.
136
Airframes
22
Registered
1941–1993
Years
2
NTSB records
Recent Interstate S-1B1 accidents
The pilot's failure to maintain a proper approach path in gusting crosswind wind conditions, which resulted in landing short of the runway and impact with a ditch and runway light.
The pilot’s failure to control the airplane’s pitch attitude, which resulted in an aerodynamic stall during the initial takeoff climb. Contributing to the accident was the pilot’s failure to set the trim in accordance with the pretakeoff checklist and the airplane’s encounter with wake turbulence from a preceding airplane.
