Individually Owned: 150,657
Corporate Owned: 137,281
Orlando Sanford Int. Airport
Aircraft Accident/Incident Report
Sanford, Florida 32773
Thursday, June 5, 2008 8:40 EDT
NTSB Narrative Summary Released at Completion of Accident
While practicing takeoffs and landings with a student, the flight instructor noted a "shimmy" in the nose landing gear during the first three landings, but did not think it was out of the ordinary. During the fourth landing, the student pilot "did not flare enough, which resulted in a three-point landing" and a subsequent "porpoise" of the airplane. The airplane bounced two or three times before he took control of the airplane and taxied clear of the runway. During the next landing, performed by the instructor, the nose landing gear collapsed. Postincident inspections conducted by the operator revealed that the nose landing gear strut weldment had cracked. The incident prompted the flight school to inspect their entire fleet of Cirrus SR20 airplanes, of which nine others exhibited cracking in the same location as the incident airplane. The airframe manufacturer subsequently issued a service bulletin mandating inspections of the nose landing gear strut for cracking. The service bulletin outlined the procedures to detect cracking, and specified corrective action that included replacement of the nose landing gear strut with a redesigned part if cracking over 0.19 inches was observed.
NTSB Probable Cause Narrative
A failure of the nose landing gear strut weldment.
Event Information
| Type of Event | Incident |
| Event Date | 6/5/2008 |
| Event Day of the Week | Thursday |
| Time of Event | 840 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Sanford |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 32773 |
| Event Date Year | 2008 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 284636N |
| Event Location Longitude | 0811407W |
| Event Location Airport | Orlando Sanford Int. Airport |
| Event Location Nearest Airport ID | SFB |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0.5 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 55 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 837 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 360 |
| Weather Observation Facility ID | SFB |
| Elevation of weather observation facility | 55 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | EST |
| 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) | 27 |
| Dew Point at event time (in degress fahrenheit) | 22 |
| Wind Direction (degrees magnetic) | 190 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.09 |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 24973 |
| NTSB Notification Source | FAA Southern ROC |
| NTSB Notification Date | Jun 6 2008 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Feb 10 2009 10:21PM |
| User who most recently changed record | grol |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Orlando, FL |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N475DA |
| NTSB Number | NYC08IA206 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cirrus |
| Aircraft Model | SR20 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 1800 |
| Certified Max Gross Weight | 3000 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 2 |
| Cabin Crew Seats | -- |
| Passenger Seats | 2 |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | May 14 2008 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 769 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Delta Connection Academy, Inc. |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Sanford |
| Aircraft Owner State | FL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 32773 |
| Operator is an individual? | No |
| Operator Name | Delta Connection Academy, Inc. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Sanford |
| Operator State | FL |
| Operator Country | USA |
| Operator Zip code | 32773 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | SFB |
| Departure City | Sanford |
| Departure State | FL |
| Departure Country | USA |
| Departure Time | 835 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | SFB |
| Destination City | Sanford |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | Landing - flare/touchdown |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 25 2009 5:52PM |
| User who most recently changed record | muzd |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 09C |
| Runway Length | 3578 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |