Individually Owned: 150,657
Corporate Owned: 137,281
Mason City Municipal Airport
Aircraft Accident/Incident Report
Mason City, Iowa 50401
Friday, February 27, 1998 17:35 CST
NTSB Narrative Summary Released at Completion of Accident
The pilot said the airplane encountered freezing rain that was changing to snow as the airplane broke out of the clouds at 600-feet above ground level during an ILS approach. He said the airplane had about 3/8 to 1/2-inch of ice on its airframe. According to the pilot, the airplane touched down on its left main landing gear, as he landed at dusk with a 10-knot left quartering tailwind. He said the left main gear tire rolled off its wheel as the nose gear and right main landing gear contacted the runway. Both the right main and nose landing gear collapsed. The pilot said he landed in a slight crab at touchdown on the ice-covered runway. The pilot said the windshield was ice covered with a clear area of about 8-inches by 11-inches through which he could see.
NTSB Probable Cause Narrative
the accumulation of airframe ice during flight, and failure of the pilot to attain a proper flare for landing. Factors relating to the accident were: the adverse weather (icing) condition; and the pilot's limited forward visibility, due to ice on the windshield and the light condition at dusk.
Event Information
| Type of Event | Accident |
| Event Date | 2/27/1998 |
| Event Day of the Week | Friday |
| Time of Event | 1735 |
| Event Time Zone | Central Standard Time |
| Event City | MASON CITY |
| Event State | IOWA |
| Event Country | -- |
| Zipcode of the event site | 50401 |
| Event Date Year | 1998 |
| Event Date Month | 2 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | MASON CITY MUNICIPAL |
| Event Location Nearest Airport ID | MCW |
| 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 | 1213 |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1750 Central Standard Time |
| Direction of event from weather observation facility (degrees) | 270 |
| Weather Observation Facility ID | MCW |
| Elevation of weather observation facility | 1213 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | CST |
| Lighting Conditions | Dusk |
| Lowest Ceiling Height | 1200 |
| Lowest Non-Ceiling Height | 0 |
| 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) | 5 |
| Air Temperature at event time (in degrees celsius) | 2 |
| Dew Point at event time (in degress fahrenheit) | 1 |
| Wind Direction (degrees magnetic) | 230 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 14 |
| 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 | Moderate |
| 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) | 28 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Feb 27 1998 12:00AM |
| NTSB Notification Time | 1902 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 11 2000 10:46AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N108RS |
| NTSB Number | CHI98LA098 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | 402B |
| Aircraft Series Identifier | 402B |
| Aircraft Serial Number | 0440 |
| Certified Max Gross Weight | 6300 |
| 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 | 8 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Nov 26 1997 12:00AM |
| Airframe hours since last inspection | 73 |
| Airframe Hours | 4984 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | DWYER AIRCRAFT SALES, INC. |
| Aircraft Owner Street Address | P.O. BOX 239 |
| Aircraft Owner City | MASON CITY |
| Aircraft Owner State | IA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 50401 |
| 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 | DFSA |
| 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 | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Positioning |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | DNS |
| Departure City | DENISON |
| Departure State | IA |
| Departure Country | |
| Departure Time | 1700 |
| Departure Time Zone | CST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | MCW |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 35 |
| Runway Length | 6501 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |