Individually Owned: 151,845
Corporate Owned: 143,699
Lakeland Linder Regional Apt. Airport
Aircraft Accident/Incident Report
Lakeland, Florida 33811
Sunday, October 5, 2008 12:30 EDT
NTSB Narrative Summary Released at Completion of Accident
While approaching the destination airport, the pilot attempted to extend the flaps to the 50-precent position. After moving the selector, the pilot heard a "bang" and the airplane rolled right. The pilot maintained control of the airplane, and after landing noted that the flaps were extended asymmetrically. Post-incident examination of the flap system revealed that flap actuator rod end was bent 90 degrees, and broken. No other anomalies of the flap system were found. The condition of the flap actuator rod end suggested that the rod end was bent initially while retracting the flaps, an action associated with extension of the flap actuator. This resulted in cracks forming at the thread roots along the outer bend. Subsequent attempts to extend the flaps placed the rod end under a reverse bending moment that acted to straighten the rod end. The manufacturer's assessment of the situation in a service bulletin concluded that the flaps could have been retracted beyond the full up position, possibly due to a sensor failure, initially bending the rod end. During a subsequent deployment, during the incident flight, the flaps over-deployed and allowed the flap actuator linkages to over-center. The rod end subsequently failed, and allowed the asymmetric flap condition.
NTSB Probable Cause Narrative
A failure of the flap actuator rod end due to low stress, high cycle fatigue, and subsequent overstress failure.
Event Information
| Type of Event | Incident |
| Event Date | 10/5/2008 |
| Event Day of the Week | Sunday |
| Time of Event | 1230 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Lakeland |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 33811 |
| Event Date Year | 2008 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 275947N |
| Event Location Longitude | 0820106W |
| Event Location Airport | Lakeland Linder Regional Apt. |
| Event Location Nearest Airport ID | LAL |
| 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 | Pilot |
| Time of the weather observation | 1250 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | LAL |
| Elevation of weather observation facility | 142 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 2900 |
| Lowest Non-Ceiling Height | 2900 |
| Sky/Lowest/Cloud Conditions | Thin Broken |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 12 |
| Air Temperature at event time (in degrees celsius) | 29 |
| Dew Point at event time (in degress fahrenheit) | 21 |
| Wind Direction (degrees magnetic) | 80 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not 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 | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 26320 |
| NTSB Notification Source | Operator |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Nov 10 2009 2:27PM |
| User who most recently changed record | kenj |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N101CD |
| NTSB Number | ERA09IA009 |
| 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 DESIGN CORP |
| Aircraft Model | SR22 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 0101 |
| Certified Max Gross Weight | 3400 |
| 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 | Annual |
| Date of Last Inspection | Mar 25 2008 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 1040 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | TIGER JONES AIRCRAFT INC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | TAMPA |
| Aircraft Owner State | FL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 33619-0905 |
| Operator is an individual? | No |
| Operator Name | TIGER JONES AIRCRAFT INC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | TAMPA |
| Operator State | FL |
| Operator Country | USA |
| Operator Zip code | 33619-0905 |
| 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 | DAB |
| Departure City | Daytona Beach |
| Departure State | FL |
| Departure Country | USA |
| Departure Time | 1200 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | LAL |
| Destination City | Lakeland |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Nov 10 2009 2:29PM |
| User who most recently changed record | kenj |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 09 |
| Runway Length | 8500 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |