DEN86LA079

NTSB accident investigation · Bell 47G3 B-2 · Grand Junction, CO · February 18, 1986

Accident · Minor injuriesLimited investigationFinal report
Date
February 18, 1986, 09:20 local (16:20 UTC)
Place
Grand Junction, CO
Injuries
3 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N1424WBell 47G3 B-2
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860218002959A
Case key
16921

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.

In flight encounter with weatherManeuvering
Weather condition - downdraftFactor
In-flight planning/decision - poorPilot in commandCause
Weather condition - tailwind
Planned approach - improperPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - rough/uneven

Analysis

The plt stated that while turning to the intended landing area, the helicopter he was piloting encountered both downdrafts & tailwind. The plt indicated the helicopter settled until grnd contact.

Aircraft

Registration
N1424W
Reported as
Bell 47G3 B-2
Category
Helicopter
Serial number
6729
Airframe hours
5,904
Engine
Allison 250-C20B, 317 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 135
Registered owner
Thunderbird Helicopters, Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · July 13, 1985 · 67 hours before
Flight plan
Company VFR

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
41
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
5,544 total · 641 in this make and model · 5,131 as pilot in command · 195 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 20 knots, gusting 40
Visibility
20 statute miles
Lowest ceiling
1,500 ft broken
Temperature
30 °F

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 N1424W · 1

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