# Accident 20040506009589A: Piper PA18150, Kasilof, AK, May 6, 2004

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 6, 2004, 15:40 local time
- Place: Kasilof, AK
- Damage: Minor damage
- Phase of flight: Final Approach
- Operating rules: General operating rules (Part 91)
- Location: 60.8000° N, 152.6667° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=60.8000&lon=-152.6667&mi=10
- Aircraft: N2521S, registered now (https://openairdocs.org/aircraft/N2521S) (OpenAirDocs)
- Registry model: Piper PA-18-150 (registry code 7101828, https://openairdocs.org/model/piper-pa-18-150) (OpenAirDocs)
- Registry engine: Lycoming 0-320 series (registry code 41508, https://openairdocs.org/engine/lycoming-0-320-series) (OpenAirDocs)
- Reported make and model: PIPER PA18150
- Reported engine: LYC O320A2B
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 700 total, 700 in this make and model, 6 in the last 90 days
- NTSB investigation: [NTSB ANC04LA051](https://openairdocs.org/ntsb/ANC04LA051) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20040506009589A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ON MAY 6, 2004, MR. SIEBERTS, PILOT-IN-COMMAND, DEPARTED MERRILL FIELD (MRI) IN N2521S, A PIPER SUPER CUB (PA-18) ENROUTE TO POLLY CREEK (OFF AIRPORT LANDING). ON APPROACH TO LANDING, A DOWNDRAFT WAS ENCOUNTERED CAUSING A HARD LANDING. THE RIGHT LANDING GEAR COLLAPSED, CAUSING DAMAGE TO THE RIGHT WING STRUT AND RIGHT WING SPAR.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ANC04LA051](https://openairdocs.org/ntsb/ANC04LA051), May 6, 2004: Piper PA-18 (N2521S), Kasilof, AK, substantial damage. Probable cause: The pilot's inadequate compensation for wind conditions while landing, which resulted in an undershoot and an in-flight collision with terrain. Factors associated with the accident were a downdraft,…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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