Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Atlanta, Georgia 30309
Wednesday, March 22, 1989 18:30 EST
NTSB Narrative Summary Released at Completion of Accident
DRG TAKEOFF FROM A HELIPAD AT DUSK, THE ENG LOST PWR AS THE HELICOPTER WAS CLIMBING THRU APRX 75' AGL. THE PLT INITIATEDAN AUTOROTATION TO A PARKING LOT, WHICH REQUIRED THE USE OF COLLECTIVE TO REACH THE LOT. SUBSEQUENTLY, THE HELICOPTER HIT AN ELECTRICAL WIRE OVER THE PARKING LOT, THEN CRASHED. AN EXAM REVEALED THE TURBINE SPUR ADAPTER GEARSHAFT HAD FAILED FROM FATIGUE. ALUMINUM RICH METAL DEBRIS WAS FOUND BLOCKING THE OIL DELIVERY TUBE TO THE GEARSHAFT; THE OIL INLET SCREEN FILTER WAS MISSING; AND THERE WAS EVIDENCE OF OVERHEATING & EXCESSIVE WEAR OF THE GEARSHAFT SPLINES. THE 100 HR INSPN CHECKLIST FOR THE ENG REQUIRED THE REMOVAL & INSPN OF THE ENG OIL SYS FILTER. WITH THE FILTER REMOVED, THERE WAS DIRECT ACCESS TO THE SPUR ADAPTER GEARSHAFT OIL DELIVERY TUBE & THE OIL TUBE CONNECTOR ASSEMBLY CUP FILTER.
NTSB Probable Cause Narrative
FATIGUE FAILURE OF THE ENGINE SPUR ADAPTER GEARSHAFT IN AN AREA WHERE THERE WAS A LACK OF LUBRICATION (OIL STARVATION) DUE TO A PARTIALLY BLOCKED OIL DELIVERY TUBE. CONTRIBUTING FACTORS WERE: INATTENTIVE MAINTENANCE OR SERVICING OF THE AIRCRAFT BY UNKNOWN MAINTENANCE PERSONNEL, THE LIGHT CONDITIONS AT DUSK, AND THE ELECTRICAL (TRANSMISSION) WIRE.
Event Information
| Type of Event | Accident |
| Event Date | 3/22/1989 |
| Event Day of the Week | Wednesday |
| Time of Event | 1830 |
| Event Time Zone | Eastern Standard Time |
| Event City | ATLANTA |
| Event State | GEORGIA |
| Event Country | -- |
| Zipcode of the event site | 30309 |
| Event Date Year | 1989 |
| Event Date Month | 3 |
| 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 | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 1000 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1850 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 30 |
| Weather Observation Facility ID | PDK |
| Elevation of weather observation facility | 1002 |
| Distance of event from weather observation facility (units?) | 7 |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Dusk |
| Lowest Ceiling Height | 1400 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 11 |
| Air Temperature at event time (in degrees celsius) | 8 |
| Dew Point at event time (in degress fahrenheit) | 4 |
| Wind Direction (degrees magnetic) | 110 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 200 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1051 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Mar 22 1989 12:00AM |
| NTSB Notification Time | 1830 |
| Fiche Number and/or location -used to find docket information | 39257 |
| Date of most recent change to record | Dec 13 2000 12:31PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5004F |
| NTSB Number | ATL89FA112 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | BELL |
| Aircraft Model | 206B |
| Aircraft Series Identifier | 206B |
| Aircraft Serial Number | 2443 |
| Certified Max Gross Weight | 3200 |
| Aircraft Category | Helicopter |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Jan 28 1989 12:00AM |
| Airframe hours since last inspection | 72 |
| Airframe Hours | 4894 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | REVCO HELICOPTERS, INC |
| Aircraft Owner Street Address | ROUTE 1 |
| Aircraft Owner City | BISHOP |
| Aircraft Owner State | GA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 30621 |
| Operator is an individual? | -- |
| Operator Name | DOOLEY HELICOPTERS INC |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 2003 FLIGHTWAY DRIVE |
| Operator City | CHAMBLEE |
| Operator State | GA |
| Operator Country | |
| Operator Zip code | 30341 |
| Operator Code | ETMA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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) | Positioning |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1827 |
| Departure Time Zone | EST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:35AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |