Aircraft Accident/Incident Report

Silver Plume, Colorado 80476
Saturday, April 2, 1988 16:15 MST

NTSB Narrative Summary Released at Completion of Accident

ON THE DAY OF THE ACCIDENT, N72590 WAS OPERATING AS ST. ANTHONY HOSPITAL'S FLIGHT FOR LIFE HELICOPTER. THE PLT HAD JUST PICKED UP A PATIENT AND WAS EN ROUTE OVER MOUNTAINOUS TERRAIN WHEN A PART FROM THE FLT CONTROL MIXING UNIT FAILED DUE TO FATIGUE. WITHOUT COLLECTIVE CONTROL, THE PLT EXECUTED AN EMERG, RUN-ON LANDING ON A SMALL ROAD. DURING THE RUN-ON LANDING, THE NOSE GEAR AND RIGHT STRUT FAILED. THE ACFT WAS SUBSTANTIALLY DAMAGED, HOWEVER, NO ONE ONBOARD WAS INJURED.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 4/2/1988
Event Day of the Week Saturday
Time of Event 1615
Event Time Zone Mountain Standard Time
Event City SILVER PLUME
Event State COLORADO
Event Country --
Zipcode of the event site 80476
Event Date Year 1988
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 1615
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 20
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 30
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 10778
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 272
NTSB Notification Source --
NTSB Notification Date Apr 2 1988 12:00AM
NTSB Notification Time 1700
Fiche Number and/or location -used to find docket information 36003
Date of most recent change to record Dec 13 2000 11:40AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N72590
NTSB Number DEN88FA091
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AEROSPATIALE
Aircraft Model SA316B
Aircraft Series Identifier SA316B
Aircraft Serial Number 1509
Certified Max Gross Weight 4850
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Mar 22 1988 12:00AM
Airframe hours since last inspection 17
Airframe Hours 8164
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ROCKY MOUNTAIN HELICOPTERS
Aircraft Owner Street Address P.O. BOX 1337
Aircraft Owner City PROVO
Aircraft Owner State UT
Aircraft Owner Country
Aircraft Owner Zipcode 84603
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code DYRA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City BRECKENRIDGE
Departure State CO
Departure Country
Departure Time 1557
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code
Destination City DENVER
Destination State CO
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight Yes
Medical Flight --