LAX88LA324

NTSB accident investigation · Robinson R22-HP · Yosemite, CA · September 19, 1988

Accident · No injuriesLimited investigationFinal report
Date
September 19, 1988, 11:30 local (18:30 UTC)
Place
Yosemite, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N9077NRobinson R22-HP
Weather
Visual (VMC) · Day
Status
Completed · report October 2, 1989
Report
Approved by Office Director
FAA report
19880919039179A
Case key
26106

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.

Loss of control - in flightCruise - normal
Weather condition - tailwindFactor
Rotorcraft flight controls - improper use ofPilot in commandCause
Aircraft performance - exceededCause
Airspeed - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - rough/unevenFactor

Analysis

The pilot was flying in high terrain at 10,000 ft MSL when he noticed his airspeed had dropped to 0. He stated that he had encountered a strong tailwind and he lost control of the helicopter. The helicopter collided with the terrain in an uncontrolled descent. The pilot reported after the accident that he had simply gotten the helicopter into a situation that he could not recover from. There were no mechanical difficulties reported prior to the accident. The pilot indicated the winds were gusting to 50 KTS.

Aircraft

Registration
N9077N
Reported as
Robinson R22-HP
Category
Helicopter
Serial number
0271
Airframe hours
1,886
Engine
Lycoming O-320-B2C, 124 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Choppers, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 18, 1987 · 126 hours before
Departed
MAE · Madera, CA
Destination
Mendota Ranch, 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
46
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
956 total · 381 in this make and model · 956 as pilot in command · 45 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 40 knots
Lowest ceiling
None
Temperature
-0 °F, dew point -0 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.