Individually Owned: 151,845
Corporate Owned: 143,699
Lovell Field Airport
Aircraft Accident/Incident Report
Chattanooga, Tennessee 37401
Thursday, May 8, 2003 12:28 EDT
NTSB Narrative Summary Released at Completion of Accident
After takeoff the flight crew heard a high frequency vibration which could be felt in the feet and control column. The engine indicating and alerting system indicated no messages. The vibration was slow and increased in intensity and lasted about 30 seconds. The flight was cleared to 17,000 feet, and the airplane started an uncommanded roll to the right. The first officer disconnected the autopilot and regained control of the airplane. The captain declared an emergency, and was issued a clearance to an alternate airport. The vibrations continued at all airspeeds during the descent and landing. Examination of the airplane revealed the bushings and right aileron inboard and outboard power control unit output link were worn and exceeded the authorized tolerance allowed by the maintenance manual. The aircraft manufacturers inspection procedures for the aileron system backlash check did not require the operator to record the tolerance found during the backlash check.
NTSB Probable Cause Narrative
Excessive wear on the bushings and the right aileron inboard and outboard power control unit output link resulting in the upward movement of the right aileron during cruise climb, uncommanded right roll. A factor in the accident was inadequate maintenance inspection procedure by the aircraft manufacture for the aileron system backlash check performed by the operator. The inspection procedure did not require the operator to record the tolerance found during the backlash check.
Event Information
| Type of Event | Incident |
| Event Date | 5/8/2003 |
| Event Day of the Week | Thursday |
| Time of Event | 1228 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Chattanooga |
| Event State | TENNESSEE |
| Event Country | -- |
| Zipcode of the event site | 37401 |
| Event Date Year | 2003 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 350206N |
| Event Location Longitude | 0851213W |
| Event Location Airport | Lovell Field |
| Event Location Nearest Airport ID | CHA |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 682 |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1653 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | CHA |
| Elevation of weather observation facility | 682 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 1500 |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 6 |
| Air Temperature at event time (in degrees celsius) | 24 |
| Dew Point at event time (in degress fahrenheit) | 21 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.05 |
| Density Altitude (feet) | 1791 |
| 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 | 21 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 16816 |
| NTSB Notification Source | FAA Southern Region Ops Center |
| NTSB Notification Date | May 5 2003 12:00AM |
| NTSB Notification Time | 1430 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Dec 28 2004 12:45PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Washinton FSDO-45 |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N829AS |
| NTSB Number | ATL03IA090 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | None |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Canadair |
| Aircraft Model | CL-600-2B19 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 7232 |
| Certified Max Gross Weight | 53250 |
| 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 | 53 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Apr 14 2003 12:00AM |
| Airframe hours since last inspection | 131 |
| Airframe Hours | 13127 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | State Street Bank and Trust Company of CT |
| Aircraft Owner Street Address | 225 Asylum Street |
| Aircraft Owner City | Hartford |
| Aircraft Owner State | CT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 06103 |
| Operator is an individual? | No |
| Operator Name | Atlantic Southeast Airlines, Inc. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 100 Hartsfield Center Parkway Suite 800 |
| Operator City | Atlanta |
| Operator State | GA |
| Operator Country | USA |
| Operator Zip code | 303054 |
| Operator Code | ASOA |
| Owner has at least one certificate | -- |
| 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 | Scheduled |
| Indicates Domestic or International Flight | International |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | ATL |
| Departure City | Atlanta |
| Departure State | GA |
| Departure Country | USA |
| Departure Time | 1219 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | CYUL |
| Destination City | Montreal |
| Destination State | -- |
| Destination Country | CA |
| Specific Phase of Flight | Climb - to cruise |
| Report sent to ICAO? | Yes |
| Evacuation occurred | No |
| Date of most recent change to record | Mar 26 2004 2:58PM |
| User who most recently changed record | POWP |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 20 |
| Runway Length | 7401 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |