GA pilot reported a NMAC at SHN non-towered airport. The student states the other non communicating aircraft, a helicopter, cut off the student's final approach.

ACN 2051519 2023-11 Small Aircraft Rotary Wing Aircraft Flight Crew Reports

Final ApproachPart 91

What is ASRS?

The Aviation Safety Reporting System is NASA's voluntary, confidential, non- punitive incident-reporting system, established 1976. Pilots, controllers, dispatchers, and maintenance technicians file reports describing safety- relevant events. NASA de-identifies every report before adding it to the public database. Reports are not investigated by NASA, the FAA, or the NTSB — they represent the reporter's perspective.

Pilot narrative

Verbatim from the de-identified NASA record. First-person account by the reporter. NASA strips identifying details (names, company, specific time); anonymization placeholders are ZZZ, X, Y.

When entering 45 for Runway 23, visually spotted the helicopter sitting on Runway 23, we self announced on a 5 mile 45, flew the downwind which is approximately when they took off, and we turned base announcing each leg, when on short final, we announced final and approximately 15 seconds after the helicopter cut us off from our left crossing approximately 150-200 ft. in front of us, at which point we made the decision to go around, and left the area.

NASA classification — Anomalies

Conflict
Deviation / Discrepancy - Procedural

NASA classification — Assessments

Contributing Factors / Situations: Human Factors
Primary Problem: Human Factors

ASRS reports are voluntarily submitted, de-identified by NASA, and represent the reporter's perspective. The presence of reports on a topic cannot be used to infer prevalence in the National Airspace System. The authoritative source is the NASA ASRS Database Online at asrs.arc.nasa.gov ↗.