Aircraft Accident/Incident Report

Denton, Texas 76205
Tuesady, April 28, 1987 8:00 CDT

NTSB Narrative Summary Released at Completion of Accident

THE AIRCRAFT'S RIGHT ENGINE, WHILE IN FLIGHT, LOST A BLADE FROM ITS FOURTH STAGE TURBINE WHEEL DUE TO METAL FATIGUE. THIS RESULTED IN VARYING DEGREES OF DAMAGE THROUGHOUT THE ENTIRE ENGINE AND CAUSED THE ENGINE TO SHUT ITSELF DOWN WHILE CLIMBING THROUGH 19,000 FEET. THE AIRCRAFT HAD DEPARTED DALLAS, TX, 19 MINUTES EARLIER. AFTER THE ENGINE FAILURE THE FLT RETURNED TO DALLAS WHERE A SINGLE ENGINE UNEVENTFUL LANDING WAS ACCOMPLISHED. EXAMINATION OF THE FAILED BLADE REVEALED THE METAL FATIGUE WAS THE RESULT OF EXCESS POROSITY WHICH WAS PRESENT WHEN THE BLADE WAS CAST. THE MANUFACTURER AGREES THAT THIS IMPERFECTION SHOULD HAVE BEEN DETECTED BY THEIR INSPECTION METHODS AND THE BLADE REJECTED. THE BLADE FAILED AFTER ABOUT 400 HOURS OF OPERATION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 4/28/1987
Event Day of the Week Tuesday
Time of Event 800
Event Time Zone Central Daylight Time
Event City DENTON
Event State TEXAS
Event Country --
Zipcode of the event site 76205
Event Date Year 1987
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 Partial - limited by pilot
Investigator's weather source Pilot
Time of the weather observation 0
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) 20
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
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 11
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5022
NTSB Notification Source --
NTSB Notification Date Apr 28 1987 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information 34019
Date of most recent change to record Dec 13 2000 2:15PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N600KC
NTSB Number FTW87IA108
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CANADAIR
Aircraft Model CL-600
Aircraft Series Identifier CL-600
Aircraft Serial Number 1012
Certified Max Gross Weight 32500
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 13
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Mar 5 1987 12:00AM
Airframe hours since last inspection 35
Airframe Hours 1310
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name KIMBERLY CLARK CORP.
Aircraft Owner Street Address 401 NORTH LAKE STREET
Aircraft Owner City NEEHAH
Aircraft Owner State WI
Aircraft Owner Country
Aircraft Owner Zipcode 54956
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
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) Executive/Corporate
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code DAL
Departure City DALLAS
Departure State TX
Departure Country
Departure Time 740
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code ATW
Destination City APPLETON
Destination State WI
Destination Country
Specific Phase of Flight Climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 No
Medical Flight --