Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Covington, Kentucky 41011
Wednesday, January 3, 2001 8:32 EST
NTSB Narrative Summary Released at Completion of Accident
During climbout, an airframe vibration developed. All gauges, readouts, synoptic pages, and airplane controls were normal. The crew contacted their maintenance base and attempted to troubleshoot the problem, but could not determine its cause. The vibration remained unchanged until the airplane leveled off at 7,000 feet during an approach. At that time, the crew felt a bump, then the vibration completely ceased. The airplane landed, and taxied to the gate without further incident. Post-flight inspection revealed that the number 1 exhaust fairing was missing, and that the left, aft fuselage had a dent. The 30 bolts that would have normally attached the exhaust nozzle assembly to the exhaust frame were all missing, "without a trace." Seven months earlier, the tailpipe was found loose. Ten bolts were replaced, and the rest were re-torqued. The last inspection on the airplane had been completed about 2 weeks earlier, 105 hours prior to the incident. Company personnel had previously found cracked bolts on exhaust flanges from other engines. Laboratory examination of used bolts from another engine revealed no anomalies. Engine shop buildup and shop exit manuals were subsequently revised to make the installation and torquing of exhaust nozzle bolts a required inspection item.
NTSB Probable Cause Narrative
Missing exhaust nozzle bolts for undetermined reasons. A factor was inadequate maintenance inspection of the affected area.
Event Information
| Type of Event | Incident |
| Event Date | 1/3/2001 |
| Event Day of the Week | Wednesday |
| Time of Event | 832 |
| Event Time Zone | Eastern Standard Time |
| Event City | Covington |
| Event State | KENTUCKY |
| Event Country | -- |
| Zipcode of the event site | 41011 |
| Event Date Year | 2001 |
| Event Date Month | 1 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| 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 | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 851 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | CVG |
| Elevation of weather observation facility | 897 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 800 |
| 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) | 6 |
| Air Temperature at event time (in degrees celsius) | -13 |
| Dew Point at event time (in degress fahrenheit) | -14 |
| Wind Direction (degrees magnetic) | 210 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.39 |
| 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 | 46 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11273 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jan 8 2001 12:00AM |
| NTSB Notification Time | 1200 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jan 2 2002 7:11AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Louisville |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N933CA |
| NTSB Number | NYC01IA072 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Bombardier |
| Aircraft Model | CL-600-2B19 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 7040 |
| Certified Max Gross Weight | 51000 |
| 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 | AAIP |
| Date of Last Inspection | Dec 15 2000 12:00AM |
| Airframe hours since last inspection | 105 |
| Airframe Hours | 16298 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | First Security Bank Utah |
| Aircraft Owner Street Address | 79 South Maintenance Street |
| Aircraft Owner City | Salt Lake City |
| Aircraft Owner State | UT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 84101 |
| Operator is an individual? | No |
| Operator Name | COMAIR INC |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 77 Comair Blvd |
| Operator City | Erlanger |
| Operator State | KY |
| Operator Country | USA |
| Operator Zip code | 41018 |
| Operator Code | COMR |
| 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 | Domestic |
| 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 | MSP |
| Departure City | Minneapolis |
| Departure State | MN |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | EST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | CVG |
| Destination City | Covington |
| Destination State | KY |
| Destination Country | USA |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Dec 9 2002 10:00AM |
| User who most recently changed record | dbo |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |