SEA83LA153

NTSB accident investigation · Brantly Helicopter B2 · Rogue River, OR · April 16, 1983

Accident · No injuriesLimited investigationFinal report
Date
April 16, 1983, 10:00 local (18:00 UTC)
Place
Rogue River, OR
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N5955XBrantly Helicopter B2
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830416035679A
Case key
39733

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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Analysis

The helicopter rolled over during lift off with pilot and one passenger and a full load of fuel. On a previous flt with one passenger and 8 gallons of fuel the pilot had noticed the left skid was about 8 inches lower than the right during lift off. On the day of the accident the left skid did not break ground contact until the right skid was about 18 inchesoff the ground. An attempt to stop the roll over with cyclic was unsuccessful. This was the pilots first lift off in theb-2 with a passenger and a full load (about 31 gallons) of fuel.

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.

Roll overTakeoff - initial climb
Aircraft weight and balance - misjudgedPilot in commandCause
Lack of familiarity with aircraftPilot in commandCause
Adequate rotor rpm - not maintainedPilot in commandCause

Aircraft

Registration
N5955X
Reported as
Brantly Helicopter B2
Category
Helicopter
Serial number
96
Airframe hours
460
Engine
Lycoming VO-B60, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Robert L. Stevenson
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 16, 1983
Airport
Spring Brook, runway 29, 2,400 × 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
52
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Expired
Seat
Right
Flight hours
595 total · 9 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 1 knots
Visibility
30 statute miles
Lowest ceiling
None

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 N5955X · 2

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