Des Moines International Airport
Aircraft Accident/Incident Report

Des Moines, Iowa 50318
Tuesady, August 19, 1997 22:21 CDT

NTSB Narrative Summary Released at Completion of Accident

During a landing approach, the pilot noted that the right engine remained at a high power setting, when he moved the power levers to reduce power. He executed a missed approach and had difficulty keeping the airplane straight and level. The pilot maneuvered for a second approach to land. After landing, he could not maintain directional control of the airplane and tried to go around, but the airplane went off the end of the runway and impacted the localizer antenna. The pilot did not advise ATC of the problem nor did he declare an emergency. The Pilot's Operating Handbook stated that for a power plant control malfunction, the affected engine should be shut down, and a single engine landing should be made. The power control cable was found disconnected from the anchoring point. A safety tab was broken off the housing, allowing it to unscrew. About one month before the accident, maintenance had been performed on the right engine to correct a discrepancy about the right engine power lever being stiff. The mechanic re-rigged the right engine power cable.

NTSB Probable Cause Narrative

the pilot's improper in-flight planning/decision and failure to perform the emergency procedure for shut-down of the right engine. Factors relating to the accident were: the power lever cable became disconnected from the fuel control unit, due to improper maintenance; and reduced directional control of the airplane, when one engine remained at a high power setting.

Event Information

Type of Event Accident
Event Date 8/19/1997
Event Day of the Week Tuesday
Time of Event 2221
Event Time Zone Central Daylight Time
Event City DES MOINES
Event State IOWA
Event Country --
Zipcode of the event site 50318
Event Date Year 1997
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport DES MOINES INTERNATIONAL
Event Location Nearest Airport ID DSM
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 957
Weather Briefing Completeness Partial - limited by pilot
Investigator's weather source Weather Observation Facility
Time of the weather observation 2216 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID DSM
Elevation of weather observation facility 957
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
Lighting Conditions Night/Dark
Lowest Ceiling Height 700
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 1479
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 --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1129
NTSB Notification Source --
NTSB Notification Date Aug 19 1997 12:00AM
NTSB Notification Time 2335
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:29PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N224AM
NTSB Number CHI97LA266
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Swearingen
Aircraft Model SA226TC
Aircraft Series Identifier SA226TC
Aircraft Serial Number TC-227
Certified Max Gross Weight 12500
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 3
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Aug 10 1997 12:00AM
Airframe hours since last inspection 69
Airframe Hours 51119
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SUPERIOR AVIATION
Aircraft Owner Street Address 250 RIVERHILLS ROAD
Aircraft Owner City KINGSFORD
Aircraft Owner State MI
Aircraft Owner Country
Aircraft Owner Zipcode 49802
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 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 Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code ICT
Departure City WICHITA
Departure State KS
Departure Country
Departure Time 2050
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code DSM
Destination City
Destination State
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 20 2002 12:42PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 5
Runway Length 6501
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --