# Accident 20040823019509A: Enstrm F28A, Leroy, MN, August 23, 2004

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 23, 2004, 09:50 local time
- Place: Leroy, MN
- Damage: Substantial damage
- Phase of flight: Forced/Precautionary Landing
- Operating rules: General operating rules (Part 91)
- Location: 43.8875° N, 92.8431° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.8875&lon=-92.8431&mi=10
- Aircraft: N9573, registered now (https://openairdocs.org/aircraft/N9573) (OpenAirDocs)
- Registry model: Enstrom F-28A (registry code 3300406, https://openairdocs.org/model/enstrom-f-28a) (OpenAirDocs)
- Registry engine: Lycoming I0360 series (registry code 41515, https://openairdocs.org/engine/lycoming-i0360-series) (OpenAirDocs)
- Reported make and model: ENSTRM F28A
- Reported engine: LYC HIO360C1A
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 50,000 total, 12,000 in this make and model, 240 in the last 90 days
- NTSB investigation: [NTSB CHI04CA237](https://openairdocs.org/ntsb/CHI04CA237) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20040823019509A

## Narrative

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

(-23) PILOT LIFTED OFF FROM PAD, CLIMBED TO APPROXIMATELY 20 FEET AND AIRCRAFT STARTED TO LOSE POWER. PILOT PERFORMED A RIGHT HAND DESCENDING TURN INTO AN OPEN FIELD ADJACENT AND 1000 FEET WEST OF DEPARTURE POINT. PILOT ATTEMPTED RUN-ON LANDING AND TOUCHED DOWN WITH FULL LEFT PEDAL AND NOSE RIGHT POSITION. LEFT SKID STRUCK SMALL BERM AND AIRCRAFT PROCEEDED INTO DYNAMIC ROLL-OVER VENT. MINOR AIRFRAME DAMAGE AND SUBSTANTIAL ROTOR SYSTEM DAMAGE OCCURRED AS A RESULT. PILOT ENCOUNTERED 4 FRACTURED RIBS AND WAS INITIALLY PINNED UNDER THE COLLECTIVE CONTROL WHEN AIRCRAFT ROLLED ONTO THE LEFT SIDE AND HAD TO BE EXTRACTED BY EMERGENCY SERVICES PERSONNEL. RIGHT SEAT PASSENGER WAS UNINJURED DURING THE EVENT.

## 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 CHI04CA237](https://openairdocs.org/ntsb/CHI04CA237), Aug 23, 2004: Enstrom F-28A (N9573), Leroy, MN, substantial damage. Probable cause: The partial loss of engine power due to the missing 1/8-27 NPT Allen plug as a result of other maintenance personnel undertorquing the plug. Additionally, the pilot improperly excecuted a run on…

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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