Individually Owned: 150,657
Corporate Owned: 137,281
Salisbury-Ocean City Wicomico Airport
Aircraft Accident/Incident Report
Salisbury, Maryland 21804
Saturday, June 30, 2001 18:44 EDT
NTSB Narrative Summary Released at Completion of Accident
The pilot was performing takeoffs and landings. After each landing, he would back-taxi on the runway for the next evolution. While back-taxiing with the tail raised, and a quartering tailwind of 7 to 8 knots, he encountered a wheel shimmy. He dampened the shimmy with rudder input, after which the airplane abruptly departed the runway to the right. The left main landing gear collapsed, and the left wing and propeller contacted the ground. Metallurgical examination of the failed landing gear brace revealed that it had failed in compression, consistent with the ground loop, and there was no evidence of fatigue or corrosion. The strut was the proper material, and its hardness was within specification. The diameter of the strut was correct; however, it wall thickness was thinner than specified. Computations indicated the lower wall thickness reduced the overall bending strength of the strut by 24 percent.
NTSB Probable Cause Narrative
The pilot's failure to maintain airplane control. Factors were the quartering tailwind, and the improper rebuild of the left main landing gear with a reduced size brace.
Event Information
| Type of Event | Accident |
| Event Date | 6/30/2001 |
| Event Day of the Week | Saturday |
| Time of Event | 1844 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Salisbury |
| Event State | MARYLAND |
| Event Country | -- |
| Zipcode of the event site | 21804 |
| Event Date Year | 2001 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | Yes |
| Event Location Latitude | 382024N |
| Event Location Longitude | 0753042W |
| Event Location Airport | Salisbury-Ocean City Wicomico |
| Event Location Nearest Airport ID | SBY |
| 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 | 52 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1954 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | SBY |
| Elevation of weather observation facility | 52 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 29 |
| Dew Point at event time (in degress fahrenheit) | 22 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.94 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 13092 |
| NTSB Notification Source | BWI FSDO |
| NTSB Notification Date | Jul 3 2001 12:00AM |
| NTSB Notification Time | 815 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | May 1 2003 7:34AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Baltimore, Maryland |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N1968N |
| NTSB Number | NYC01LA160 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Chek |
| Aircraft Model | Avid Mark IV |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 1514D |
| Certified Max Gross Weight | 1100 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | Yes |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 23 2000 12:00AM |
| Airframe hours since last inspection | 12 |
| Airframe Hours | 23 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Carl Chek |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Silver Springs |
| Aircraft Owner State | MD |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 20906 |
| Operator is an individual? | No |
| 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? | -- |
| Certified for Part 133 or 137 Operation | -- |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | SBY |
| Departure City | Salisbury |
| Departure State | MD |
| Departure Country | USA |
| Departure Time | 1700 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | SBY |
| Destination City | Salisbury |
| Destination State | MD |
| Destination Country | USA |
| Specific Phase of Flight | Taxi - to takeoff |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Apr 10 2002 9:35AM |
| User who most recently changed record | PEAR |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 23 |
| Runway Length | 5000 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |