- Date
- September 27, 1987, 10:00 local (17:00 UTC)
- Place
- Boonville, CA
- Injuries
- 1 uninjured
- Damage
- Destroyed
- Phase of flight
- Landing
- Aircraft
- N25059Rotorway Scorpion 133
- Weather
- Visual (VMC) · Day
- Status
- Completed · report March 31, 1989
- Report
- Approved by Office Director
- FAA report
- 19870927056339A
- Case key
- 25337
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
In flight collision with terrain/water
Flare - improperCause
Altitude - misjudgedCause
Lack of total experienceFactor
Roll over
Analysis
The plt said that when he was practicing quick stops & flares, the tail rotor struck the ground. The helicopter then yawed, touched down (right skid 1st) & rolled over. No preimpact mechanical failure or malfunction was rprtd.
Aircraft
- Registration
- N25059
- Reported as
- Rotorway Scorpion 133 (SCORPION 1)
- Category
- Helicopter, amateur-built
- Serial number
- S1331357
- Airframe hours
- 245
- Engine
- Rotorway RW-133, 133 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Operator
- Palmer, William R.
- Registered owner
- William R Palmer
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- 100 hour · July 10, 1987 · 37 hours before
- Departed
- Palmer Ranch, CA
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 43
- Certificate
- Student
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 79 total · 66 in this make and model · 53 as pilot in command · 10 in the last 90 days · 10 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 15 statute miles
- Lowest ceiling
- None
- Temperature
- 63 °F, dew point 48 °F
- Altimeter
- 30.00 inHg
- Observed at
- UKI
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.