Individually Owned: 150,657
Corporate Owned: 137,281
Des Moines Intl Airport
Aircraft Accident/Incident Report
Des Moines, Iowa 50301
Tuesady, July 18, 1989 2:30 CDT
NTSB Narrative Summary Released at Completion of Accident
THE PIC RPRTD THAT DURING AN IFR ARRIVAL TO THE DES MOINES INTL ARPT, HE DETECTED WHAT SEEMED TO BE MICROBURSTS & ELECTED TO MAKE A MISSED APCH. DURING A 2ND APCH (ILS RWY 30R APCH), WX CONDITIONS WERE BETTER & TOWER PSNL RPRTD ONLY LIGHT RAIN & WINDS, SO HE CONTINUED FOR A LANDING. THE APCH & TOUCHDOWN WERE NORMAL & REVERSE THRUST WAS NOT USED. HOWEVER, THE PLT RPRTD THAT WHEN HE APPLIED BRAKES, HE REALIZED THE ACFT WAS HYROPLANING. SOON THEREAFTER, IT ANGLED OFF THE RIGHT SIDE OF THE RWY, THOUGH IT WAS BEING STEERED TO THE LEFT. THE ACFT THEN ENCTRD SOFT MUD, HIT 2 LANDING LIGHT ABUTMENTS & WAS DAMAGED. THE RWY WAS RPRTD TO SLOPE DOWNWARD TOWARD THE MIDPOINT. THE PLT STATED THAT A FEW HRS LATER, WATER WAS STILL STANDING IN LOW POINTS ON THE RWY, THOUGH RAIN HAD STOPPED FALLING. ALSO, HE STATED THE LOCAL CONTROLLER HAD NOT WARNED HIM OF POSSIBLE HYDROPLANING THOUGH AT LEAST 2 INCHES OF RAIN HAD FALLEN IN A SHORT PERIOD BEFORE THE PLANE HAD LANDED. THE 0244 CDT WIND WAS RPRTD TO BE FROM 200 DEG AT 9 KTS.
NTSB Probable Cause Narrative
FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL AND RUNWAY ALIGNMENT DURING THE LANDING. FACTORS RELATED TO THE ACCIDENT WERE: ADVERSE WEATHER/RUNWAY/TERRAIN CONDITIONS, FAILURE OF THE LOCAL CONTROLLER TO WARN THE PILOT OF POSSIBLE HYDROPLANING CONDITIONS, THE PILOT'S DECISION NOT TO USE REVERSE THRUST, AND RUNWAY LIGHT ABUTMENTS.
Event Information
| Type of Event | Accident |
| Event Date | 7/18/1989 |
| Event Day of the Week | Tuesday |
| Time of Event | 230 |
| Event Time Zone | Central Daylight Time |
| Event City | DES MOINES |
| Event State | IOWA |
| Event Country | -- |
| Zipcode of the event site | 50301 |
| Event Date Year | 1989 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | DES MOINES INTL |
| 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 | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 957 |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 244 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?) | 1 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Night/Dark |
| Lowest Ceiling Height | 1400 |
| 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) | 1 |
| Air Temperature at event time (in degrees celsius) | 22 |
| Dew Point at event time (in degress fahrenheit) | 20 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Light |
| 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) | 518 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jul 18 1989 12:00AM |
| NTSB Notification Time | 430 |
| Fiche Number and/or location -used to find docket information | 39922 |
| Date of most recent change to record | Feb 26 2001 8:07AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N701AS |
| NTSB Number | MKC89LA161 |
| 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 | Gates Learjet |
| Aircraft Model | LEARJET 35 |
| Aircraft Series Identifier | LEARJET 35 |
| Aircraft Serial Number | 047 |
| Certified Max Gross Weight | 18300 |
| 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 | AAIP |
| Date of Last Inspection | Jun 4 1989 12:00AM |
| Airframe hours since last inspection | 175 |
| Airframe Hours | 7364 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | NEW CREATIONS, INC. |
| Aircraft Owner Street Address | 3939 E. 17TH AVE. |
| Aircraft Owner City | COLUMBUS |
| Aircraft Owner State | OH |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 43219 |
| 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 | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | DEN |
| Departure City | DENVER |
| Departure State | CO |
| Departure Country | |
| Departure Time | 0 |
| Departure Time Zone | |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Feb 26 2001 8:07AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 30R |
| Runway Length | 9001 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |