LAX83FA226

NTSB accident investigation · Robinson R22 · Torrance, CA · May 12, 1983

Accident · No injuriesField investigationFinal report
Date
May 12, 1983, 08:11 local (15:11 UTC)
Place
Torrance, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N83574Robinson R22
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830512018939A
Case key
23450

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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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.

Hard landingLanding - flare/touchdown
Crew/group coordination - inadequateFaa inspectorFactor
Crew/group coordination - inadequatePilot in commandFactor
Proper descent rate - exceededFaa inspectorCause
Supervision - inadequatePilot in commandCause

Analysis

The helicopter was on an FAA certification test flt with a part-time company employee in the left seat as pilot- in-command (PIC). An FAA test plt was in the right seat. The purpose of the flt was to establish new data for the helicopter's height-velocity (hv) curve. The PIC stated that all points along the curve had been successfully demonstrated on an earlier date. After a number of autorotations, the PIC successfully demonstrated a specific point at 100 ft & 48 KTS. The FAA plt then took the controls & attempted to duplicate the point in questions. The flare for the landing did not arrest the descent. Subsequently, the helicopter landed hard & the main rotor served the tail boom. Both plts admitted that they did not clearly define their individual responsibilities prior to the flt.

Aircraft

Registration
N83574
Reported as
Robinson R22
Category
Helicopter
Serial number
301
Airframe hours
66
Engine
Lycoming O-320-B2C, 124 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Registered owner
Robinson Helicopter Company
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 4, 1983 · 18 hours before
Airport
TOA · Torrance Muni, runway 11R, 3,000 × 75 ft, asphalt

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
36
Certificates
Airline transport, Flight engineer, Flight instructor
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
8,567 total · 1,100 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 3 knots
Visibility
5 statute miles
Lowest ceiling
None
Temperature
61 °F
Altimeter
29.00 inHg
Observed at
2

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 N83574 · 1

Matched to the same aircraft by N-number and date.