Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Del Ray Beach, Florida 33486
Sunday, June 21, 2009 1:20 EDT
NTSB Narrative Summary Released at Completion of Accident
According to the certified flight instructor (CFI), they were at 3000 feet with an airspeed of 65 -70 knots when he felt a low frequency vibration throughout the helicopter. He described the vibration as being a lateral vibration as if coming from the tailrotor. He did not remember feeling the vibration in the pedal or cyclic, but more of an overall vibration. According to the student pilot, during a change in cruise altitude from 3,500 feet mean sea level (MSL) to 4,000 msl, they felt an airframe vibration. The vibration increased in intensity to a point where they could not read the instrument panel and they both observed the rotor brake light and clutch light illuminate. The CFI took control of the helicopter and initiated an emergency autorotation. Examination of both main drive vee belts showed they were off their pulleys. The forward vee belt left black residue on the front side of the pulley and shaft. The rear vee belt was broken in two and also had breaks in the center between the two V sections. Other than the breaks, the belts had no evidence of deterioration. There was no indication that the belts had visible damaged prior to the flight. A review of the helicopters logbooks found no entries as to when the belts were last changed.
NTSB Probable Cause Narrative
An in-flight failure of the main drive vee belts.
Event Information
| Type of Event | Accident |
| Event Date | 6/21/2009 |
| Event Day of the Week | Sunday |
| Time of Event | 120 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Del Ray Beach |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 33486 |
| Event Date Year | 2009 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 262045N |
| Event Location Longitude | 0800700W |
| 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 | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 153 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | PBI |
| Elevation of weather observation facility | 14 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Night/Bright |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 5500 |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 31 |
| Dew Point at event time (in degress fahrenheit) | 23 |
| Wind Direction (degrees magnetic) | 130 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.88 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 2 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 27348 |
| NTSB Notification Source | FAA Southern ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Oct 4 2010 8:23PM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N2306T |
| NTSB Number | ERA09LA360 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | ROBINSON |
| Aircraft Model | R22 |
| Aircraft Series Identifier | BETA |
| Aircraft Serial Number | 1951 |
| Certified Max Gross Weight | 1370 |
| Aircraft Category | Helicopter |
| Aircraft Registration Class | -- |
| 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 | May 29 2009 12:00AM |
| Airframe hours since last inspection | 35 |
| Airframe Hours | 6631 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | Matthew Spitzer |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Hayward |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 94542 |
| Operator is an individual? | No |
| Operator Name | Airmen Testing and Training, Inc |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 2615 Lantana Road |
| Operator City | Lantana |
| Operator State | FL |
| Operator Country | USA |
| Operator Zip code | 33462 |
| Operator Code | 1G1S |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | 1G1S5737K |
| 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 | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | LNA |
| Departure City | Lantana |
| Departure State | FL |
| Departure Country | USA |
| Departure Time | 105 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | TMB |
| Destination City | Miami |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 19 2010 4:05PM |
| User who most recently changed record | kenj |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |