FTW84LA036

NTSB accident investigation · Robinson R22 · Oklahoma City, OK · October 30, 1983

Accident · No injuriesLimited investigationFinal report
Date
October 30, 1983, 07:58 local (13:58 UTC)
Place
Oklahoma City, OK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N9074YRobinson R22
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19831030074249A
Case key
21191

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.

Loss of control - in flightHover
Preflight planning/preparation - inadequatePilot in commandCause
Terrain condition - softFactor
Unsuitable terrain or takeoff/landing/taxi area - not identifiedPilot in commandCause
Landing gear,skid assembly - movement restrictedFactor
Rotorcraft flight controls - improper use ofPilot in commandCause
Roll overHover

Analysis

The plt reported that he intended to practice hovering within the arpt boundries. According to him, as the RPM was increased to 100% for lift-off, the right skid came off the ground, but the left skid was 'evidently stuck in the soft ground.' Right cyclic was applied as the left skid came free from the soft terrain. The plt said that this resulted in an unusually steep bank to the right. Left cyclic was then applied in an unsuccessful effort to maintain control of the acft. The plt reported the eng RPM then began decreasing & directoinal control was lost. Subsequently, the helicopter settled back to the ground & rolled over on its side.

Aircraft

Registration
N9074Y
Reported as
Robinson R22
Category
Helicopter
Serial number
0241
Airframe hours
874
Engine
Lycoming O-320, 124 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Oklahoma Aviation Company
Airworthiness certificate
Standard, Normal
Airport
PWA · Wiley Post

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
31
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Unknown
Seat
Right
Flight hours
863 total · 745 in this make and model · 788 as pilot in command · 88 in the last 90 days · 5 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
20° at 8 knots
Visibility
5 statute miles
Lowest ceiling
400 ft
Altimeter
30.00 inHg
Observed at
PWA

FAA reports on this event · 1

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