Individually Owned: 151,845
Corporate Owned: 143,699
Montgomery Airpark Airport
Aircraft Accident/Incident Report
Gaithersburg, Maryland 20879
Tuesady, January 25, 1994 16:05 EST
NTSB Narrative Summary Released at Completion of Accident
The pilot was in the process of being trained to fly helicopters and did not have a helicopter rating. The pilot had accumulated about 19 hours of total helicopter flight time when the accident occurred. He did possess a private pilot fixed wing certificate at the time of the accident. The pilot was performing a supervised solo and was hovering over the runway at the termination of his fourth approach. He said the low RPM light illuminated and he lowered the collective. He lost control of the helicopter and it descended to the runway. The helicopter bounced on both skids and returned to the runway. The helicopter's left skid contacted the runway and the helicopter rolled over.
NTSB Probable Cause Narrative
THE PILOT'S FAILURE TO MAINTAIN ROTOR RPM WHICH LED TO AN IN FLIGHT LOSS OF CONTROL RESULTING IN A COLLISION WITH THE RUNWAY AND THE HELICOPTER ROLLING OVER ON ITS SIDE. A FACTOR IN THIS ACCIDENT WAS THE PILOT'S LACK OF TOTAL EXPERIENCE FLYING HELICOPTERS.
Event Information
| Type of Event | Accident |
| Event Date | 1/25/1994 |
| Event Day of the Week | Tuesday |
| Time of Event | 1605 |
| Event Time Zone | Eastern Standard Time |
| Event City | GAITHERSBURG |
| Event State | MARYLAND |
| Event Country | -- |
| Zipcode of the event site | 20879 |
| Event Date Year | 1994 |
| Event Date Month | 1 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | MONTGOMERY AIRPARK |
| Event Location Nearest Airport ID | GAI |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 539 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Pilot |
| Time of the weather observation | 1605 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 2 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 140 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1035 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jan 25 1994 12:00AM |
| NTSB Notification Time | 2130 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 6 2000 10:23AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8559A |
| NTSB Number | BFO94LA035 |
| 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 | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | ROBINSON |
| Aircraft Model | R-22A |
| Aircraft Series Identifier | R-22A |
| Aircraft Serial Number | 468 |
| Certified Max Gross Weight | 1370 |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Jan 9 1994 12:00AM |
| Airframe hours since last inspection | 40 |
| Airframe Hours | 3867 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | DAVID CARR |
| Aircraft Owner Street Address | 7920 AIRPARK ROAD |
| Aircraft Owner City | GAITHERSBURG |
| Aircraft Owner State | MD |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 20879 |
| Operator is an individual? | -- |
| Operator Name | MONTGOMERY AVIATION |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 7920 AIRPORT ROAD |
| Operator City | GAITHERSBURG |
| Operator State | MD |
| Operator Country | |
| Operator Zip code | 20879 |
| Operator Code | |
| Owner has at least one certificate | None |
| 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) | Instructional |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 0 |
| Departure Time Zone | |
| 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 | Hover |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 14 |
| Runway Length | 4196 |
| Runway Width | 73 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |