DEN89LA120

NTSB accident investigation · Enstrom 280C · Colorado Spgs, CO · May 17, 1989

Accident · Minor injuriesLimited investigationFinal report
Date
May 17, 1989, 12:40 local (18:40 UTC)
Place
Colorado Spgs, CO
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N624HEnstrom 280C
Weather
Visual (VMC) · Day
Status
Completed · report June 18, 1990
Report
Approved by Office Director
FAA report
19890517011689A
Case key
17709

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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Probable cause

Inadequate compensation for the wind conditions by the pilot. The high density altitude and wind conditions were contributing factors.

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.

Miscellaneous/otherTaxi - aerial
Weather condition - high density altitudeFactor
Weather condition - crosswindFactor
Weather condition - tailwindFactor
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause
In flight collision with terrain/waterTaxi - aerial
Autorotation - attempted
Roll overTaxi - aerial

Analysis

After returning from a local photo flt, the plt made an apch to a hover landing near the apch end of rwy 17. He was then cleared to cross the rwy & proceed (south-southeast) to the intended parking area. As he started forward & began a climb, he noticed what he believed was a partial power loss & he initiated a hovering autorotation. The helicopter touched down with forward speed & slid to a stop, then rocked backward & to the left, damaging the main & tail rotor blades. A post acdnt eng run was made, but no reason was found for the rprtd power loss. The prevailing wind was from 340 deg at 10 KTS. The plt rprtd the wind was gusting to 20 KTS. Density altitude was calculated to be 7300 ft.

Aircraft

Registration
N624H
Reported as
Enstrom 280C
Category
Helicopter
Serial number
1078
Airframe hours
4,300
Engine
Lycoming HIO-360-E1AD, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Falcon Helicopters
Registered owner
Mike Gonsales
Airworthiness certificate
Standard, Normal
Departed
COS
Destination
COS
Airport
COS · Colorado Springs, runway 17, 11,021 × 150 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
46
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine sea, Single-engine sea, Multi-engine land
Instrument ratings
Helicopter, Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,300 total · 150 in this make and model · 4,000 as pilot in command · 188 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 10 knots
Visibility
60 statute miles
Lowest ceiling
4,800 ft broken
Temperature
61 °F, dew point 37 °F
Altimeter
29.00 inHg
Observed at
COS, 1 nm away

FAA reports on this event · 1

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