DEN87LA235

NTSB accident investigation · Bell 47-G3B2 · Oakley, UT · September 10, 1987

Accident · No injuriesLimited investigationFinal report
Date
September 10, 1987, 08:00 local (14:00 UTC)
Place
Oakley, UT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N1038XBell 47-G3B2
Weather
Visual (VMC) · Day
Status
Completed · report October 6, 1988
Report
Approved by Office Director
FAA report
19870910058949A
Case key
17307

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 flightTakeoff - initial climb
Weather condition - high density altitudeFactor
Rotor rpm - not maintainedPilot in commandCause
Hard landingLanding - flare/touchdown

Analysis

The plt had just taken off from a confined area surrounded on two sides with electrical power lines. As he attempted to climb, he said his RPM began to bleed off. He stated that he made a right pedal turn to avoid the wires but was unable to prevent a hard landing which resulted in substantial damage to the helicopter. The density alt was 11,677 ft.

Aircraft

Registration
N1038X
Reported as
Bell 47-G3B2
Category
Helicopter
Serial number
6720
Airframe hours
3,740
Engine
Lycoming TVO-0435-G1A, 280 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Knight Hawk Helcopters
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 15, 1986 · 12 hours before

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
35
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,330 total · 150 in this make and model · 125 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
0° at 1 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

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