Incident Overview
During an approach, the pilot reported that the flaps would not lock into the 20-degree extended position. The pilot subsequently opted to perform a no-flap landing and referred to the emergency checklist.
Checklist Misstep
The emergency checklist advised the pilot to extend the landing gear, but the pilot skimmed over that information, assuming the gear was already down and locked. The pilot instead focused on maintaining a stabilized approach.
Touchdown and Outcome
The airplane touched down on the runway with the landing gear in the retracted position. Post-incident inspection revealed no mechanical malfunctions with the landing gear system.
Flap System Examination
A ground test run of the flaps did not reproduce the locking failure encountered during the flight. The exact cause of the flap anomaly could not be determined from the available evidence.