Campbell County Airport
Aircraft Accident/Incident Report

Gillette, Wyoming 82716
Saturday, June 27, 1992 7:48 MDT

NTSB Narrative Summary Released at Completion of Accident

IMMEDIATELY AFTER TAKEOFF, AT ABOUT 100 FT AGL, THERE WAS AN ABRUPT LOSS OF POWER. THE PILOT LOWERED THE LANDING GEAR & EXECUTED A FORCED LANDING STRAIGHT AHEAD. THE GEAR DID NOT FULLY EXTEND, AND RETRACTED AT TOUCHDOWN. POST CRASH EXAMINATION REVEALED THAT THE INDUCTION AIR 'SCAT' TUBE INNER WALL HAD COLLAPSED AT A 90 DEG BEND, RESTRICTING INTAKE AIR TO THE ENGINE. THE TUBING WAS INSTALLED AS PER A ONE TIME FIELD APPROVED STC. THE ALTERNATE AIR BYPASS WAS DOWNSTREAM OF THE 'SCAT' TUBING. THE TUBING WAS OF A DOUBLE WALL DESIGN WHICH CHARACTERISTICALLY CAN DELAMINATE WHEN EXPOSED TO HIGH HEAT.

NTSB Probable Cause Narrative

AN ENGINE POWER LOSS DUE TO THE COLLAPSE OF THE INDUCTION AIR DUCTING, INADEQUATE MAINTENANCE, AND IMPROPER APPROVAL OF THE MODIFICATION.

Event Information

Type of Event Accident
Event Date 6/27/1992
Event Day of the Week Saturday
Time of Event 748
Event Time Zone Mountain Daylight Time
Event City GILLETTE
Event State WYOMING
Event Country --
Zipcode of the event site 82716
Event Date Year 1992
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport CAMPBELL COUNTY
Event Location Nearest Airport ID GCC
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 648 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 160
Weather Observation Facility ID GCC
Elevation of weather observation facility 4363
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation MDT
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) 20
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) 80
Variable Wind Indicator Unknown
Wind Speed (knots) 1
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 2
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2408
NTSB Notification Source --
NTSB Notification Date Jun 27 1992 12:00AM
NTSB Notification Time 835
Fiche Number and/or location -used to find docket information 47120
Date of most recent change to record Dec 11 2000 3:01PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2550T
NTSB Number SEA92LA138
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name NAVION
Aircraft Model H
Aircraft Series Identifier H
Aircraft Serial Number NAV-4-2550
Certified Max Gross Weight 3315
Aircraft Category Airplane
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 21 1992 12:00AM
Airframe hours since last inspection 26
Airframe Hours 1649
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ECKERT, EDWIN J.
Aircraft Owner Street Address 9148 NORTH TIMBERLANE
Aircraft Owner City PEORIA
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 61615
Operator is an individual? --
Operator Name ECKERT, EDWIN J.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 9148 NORTH TIMBERLANE
Operator City PEORIA
Operator State IL
Operator Country
Operator Zip code 61615
Operator Code
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 748
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code HLN
Destination City HELENA
Destination State MT
Destination Country
Specific Phase of Flight Climb
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 --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --