- Date
- August 29, 1995, 10:00 local (17:00 UTC)
- Place
- El Monte, CA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N8373JRobinson R-22
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 27, 1996
- Report
- Approved by Office Director
- FAA report
- 19950829026829A
- Case key
- 29201
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
the student's improper use of the cyclic control; the flight instructor's inadequate supervision of the flight; and the flight instructor's failure to maintain an adequate obstacle clearance distance in selection of a practice slope landing area.
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.
Analysis
The flight instructor said the 50-hour student performed a slope landing in a flood control dam area used for practice landings. During the takeoff, the student lifted the low skid with cyclic; however, continued to apply the control and the helicopter started to roll beyond level. The instructor stated that she attempted to apply corrective control inputs but the student overpowered her. The helicopter continued to roll until the main rotor struck a 4-foot-tall steel post. The helicopter then rolled over.
Factual narrative
On August 29, 1995, at 1000 hours Pacific daylight time, a Robinson R-22 helicopter, N8373J, rolled over during takeoff from a field near El Monte, California. The helicopter was operated by California Helitec of La Verne, California, and was engaged in a dual instructional flight at the time. Visual meteorological conditions prevailed at the time and included calm winds. The helicopter sustained substantial damage. Neither the certificated commercial pilot/flight instructor nor her dual primary student were injured. The flight originated at the Pomona Airport, La Verne, California, on the day of the accident at 0900.
In the pilot/operator accident report, the flight instructor said the 50-hour student performed a slope landing in a flood control dam area used for practice landings. During the takeoff, the student lifted the low skid with cyclic; however, continued to apply the control and the helicopter started to roll beyond level. The instructor stated that she attempted to apply corrective control inputs but the student overpowered her. The helicopter continued to roll until the main rotor struck a 4-foot-tall steel post. The helicopter then rolled over.
Aircraft
- Registration
- N8373J
- Reported as
- Robinson R-22
- Category
- Helicopter
- Serial number
- 0318
- Airframe hours
- 8,592
- Engine
- Lycoming O-320-B2C, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- California Helitec
- Registered owner
- Martin Mayerfeld
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · August 10, 1995 · 66 hours before
- Departed
- POC · La Verne, CA
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 28
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Helicopter, Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 1,300 total · 1,000 in this make and model · 1,150 as pilot in command · 150 in the last 90 days · 50 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 30 statute miles
- Lowest ceiling
- None
- Temperature
- 84 °F
- Altimeter
- 29.00 inHg
- Observed at
- EMT, 6 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N8373J · 1
Matched to the same aircraft by N-number and date.