LAX95LA312

NTSB accident investigation · Robinson R-22 · El Monte, CA · August 29, 1995

Accident · No injuriesLimited investigationFinal report
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.

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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.

Loss of control - on ground/waterTakeoff
Cyclic - improper use ofDual studentCause
Terrain condition - congested/confined area
Supervision - inadequatePilot in command(cfi)Cause
Object - fence post
Rotor system,main rotor - blade strike
Roll overTakeoff

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.