Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Lebanon, New York 13332
Monday, April 27, 2009 16:45 EDT
NTSB Narrative Summary Released at Completion of Accident
The pilot was the designer and manufacturer of the experimental accident airplane, a prototype that he intended to begin producing and selling. He had flown to an aircraft trade show to display the airplane and was returning to his home airport when he encountered turbulent winds. He landed at a nearby airport and then departed again about 2 hours later. Approximately 15 minutes after departure, the left wing separated from the airplane. Postaccident examination of portions of the composite left wing, left wing strut, and tubular metal undercarriage revealed the separation of the left wing likely initiated at the inboard attachments to the fuselage. The structure of the left wing fractured around the aluminum plates connecting the spar to the strut, allowing the strut and wing to separate. At the upper end of the left wing strut, the protruding aluminum bar stock and the two aluminum plates connecting it to the wing spar were bent down and forward. The steel plates connecting the inboard end of the bar stock to the lower fuselage frame had residual deformation showing displacement aft and nose-down twisting, with some cracking in the welds. The bar stock adjacent to the fracture retained residual deformation indicating that the fracture occurred under downward bending at the outboard end. The steel plates connecting the bottom end of the right strut to the lower fuselage frame had residual deformation showing displacement forward and nose-down twisting. Additionally, the construction of the undercarriage displayed several areas susceptible to fatigue cracking, including holes drilled through the metal undercarriage tubes. The foreign airworthiness certification process for the airplane required no inspection, other than self-certification from the pilot/manufacturer, prior to issuance of an airworthiness certificate.
NTSB Probable Cause Narrative
The in-flight separation of the left wing due to failure of one of the inboard attachments to the fuselage.
Event Information
| Type of Event | Accident |
| Event Date | 4/27/2009 |
| Event Day of the Week | Monday |
| Time of Event | 1645 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Lebanon |
| Event State | NEW YORK |
| Event Country | -- |
| Zipcode of the event site | 13332 |
| Event Date Year | 2009 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 424854N |
| Event Location Longitude | 0754103W |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1654 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 300 |
| Weather Observation Facility ID | SYR |
| Elevation of weather observation facility | 421 |
| Distance of event from weather observation facility (units?) | 25 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 5500 |
| Sky/Lowest/Cloud Conditions | Few |
| 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) | 12 |
| Wind Direction (degrees magnetic) | 340 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.14 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 27227 |
| NTSB Notification Source | FAA Eastern Region ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jul 23 2010 3:50PM |
| User who most recently changed record | kenj |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | C-IOFL |
| NTSB Number | ERA09FA273 |
| 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 | Explorer Aeronautique Inc. |
| Aircraft Model | Ecoflyer |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | CQS08R1 |
| Certified Max Gross Weight | 1320 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| 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 | -- |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | C91-A |
| Aircraft Owner Name | Explorer Aeronautique Inc |
| Aircraft Owner Street Address | 1355 Rue Dupont |
| Aircraft Owner City | Shawinigan |
| Aircraft Owner State | -- |
| Aircraft Owner Country | CA |
| Aircraft Owner Zipcode | -- |
| Operator is an individual? | No |
| Operator Name | Explorer Aeronautique Inc |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | 1355 Rue Dupont |
| Operator City | Shawinigan |
| Operator State | -- |
| Operator Country | CA |
| Operator Zip code | -- |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | OIC |
| Departure City | Norwich |
| Departure State | NY |
| Departure Country | USA |
| Departure Time | 1630 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | CYRQ |
| Destination City | Trois-Rivieres |
| Destination State | -- |
| Destination Country | CA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jul 23 2010 3:50PM |
| User who most recently changed record | kenj |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |