Individually Owned: 150,657
Corporate Owned: 137,281
Ottumwa Industrial Airport
Aircraft Accident/Incident Report
Ottumwa, Iowa 52501
Tuesady, August 6, 1991 8:11 CDT
NTSB Narrative Summary Released at Completion of Accident
DURING ARRIVAL, THE PILOT WAS CLEARED FOR AN ILS RUNWAY 31 APPROACH. AS HE CONTINUED THE APPROACH, THE AIRPLANE DESCENDED INTO TREES AND THE TERRAIN, INSIDE THE OUTER MARKER, 4.0 MILES FROM THE THRESHOLD AND .19 MILE TO THE LEFT OF CENTERLINE. INITIAL IMPACT WAS ON A HEADING OF 356 DEGREES MAGNETIC AT AN ELEVATION OF 820 FEET MSL. THE AIRPORT ELEVATION WAS 845 FEET MSL. MINIMUM DESCENT ALTITUDE (MDA) BEFORE REACHING THE ILS GLIDE SLOPE WAS 2800 FEET; MDA FOR A LOCALIZER ONLY APPROACH WAS 1200 FEET. DECISION HEIGHT (IF ESTABLISHED ON THE ILS LOCALIZER & GLIDEPATH) WAS 1041 FEET. SUBSEQUENT INVESTIGATION FAILED TO REVEAL ANY MECHANICAL MALFUNCTION OF THE AIRCRAFT OR SIGNIFICANT WEATHER PHENOMENA WHICH WOULD HAVE RESULTED IN THE ACCIDENT.
NTSB Probable Cause Narrative
IMPROPER IFR PROCEDURE BY THE PILOT BY NOT MAINTAINING THE PROPER MINIMUM DESCENT ALTITUDE (MDA) UNTIL ESTABLISHED ON THE ILS LOCALIZER AND GLIDEPATH.
Event Information
| Type of Event | Accident |
| Event Date | 8/6/1991 |
| Event Day of the Week | Tuesday |
| Time of Event | 811 |
| Event Time Zone | Central Daylight Time |
| Event City | OTTUMWA |
| Event State | IOWA |
| Event Country | -- |
| Zipcode of the event site | 52501 |
| Event Date Year | 1991 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | OTTUMWA INDUSTRIAL |
| Event Location Nearest Airport ID | OTM |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 4 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 845 |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 853 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 320 |
| Weather Observation Facility ID | OTM |
| Elevation of weather observation facility | 845 |
| Distance of event from weather observation facility (units?) | 2 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 300 |
| Lowest Non-Ceiling Height | 300 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 1 |
| Air Temperature at event time (in degrees celsius) | 18 |
| Dew Point at event time (in degress fahrenheit) | 17 |
| Wind Direction (degrees magnetic) | 110 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Light |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | 2 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1586 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 45238 |
| Date of most recent change to record | Feb 26 2001 8:05AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N61568 |
| NTSB Number | CHI91FA254 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 172M |
| Aircraft Series Identifier | 172M |
| Aircraft Serial Number | 17264646 |
| Certified Max Gross Weight | 2300 |
| 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 | Fixed |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | Jan 2 2000 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | AIR EXEC, ONC. |
| Aircraft Owner Street Address | P.O. BOX |
| Aircraft Owner City | FORT MADISON |
| Aircraft Owner State | IA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 52627 |
| Operator is an individual? | -- |
| Operator Name | AIR EXEC, ONC. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | P.O. BOX |
| Operator City | FORT MADISON |
| Operator State | IA |
| Operator Country | |
| Operator Zip code | 52627 |
| 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) | Business |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | K27 |
| Departure City | FORT MADISON |
| Departure State | IA |
| Departure Country | |
| Departure Time | 729 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | OTM |
| Destination City | OTTUMWA |
| Destination State | IA |
| Destination Country | |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Feb 26 2001 8:05AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 31 |
| Runway Length | 6499 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |