Individually Owned: 151,845
Corporate Owned: 143,699
Aircraft Accident/Incident Report
Hilo, Hawaii 96720
Saturday, November 21, 1992 11:15 HST
NTSB Narrative Summary Released at Completion of Accident
THE HELICOPTER WAS EQUIPPED WITH 2 CAMERAS AND WAS DOING FILMING RUNS OF A VOLCANO VENT CRATER AND ITS ASSOCIATED SMOKE PLUME FOR A MOTION PICTURE. THE PILOT SAID THAT ON THE THIRD PASS OVER THE CRATER HE NOTICED THE MAIN ROTOR RPM DECREASING AND SAW THE ROTOR CAUTION LIGHT. HE SAID HE LOWERED THE COLLECTIVE AND INADVERTENTLY ENTERED THE VOLCANO SMOKE AND STEAM CLOUD. AFTER TURNING HE EXITED THE CLOUD AND AUTOROTATED TO THE CRATER BOTTOM. THE MAIN ROTOR STRUCK THE SHEAR ROCK WALL DURING THE FLARE AND SEPARATED FROM THE HELICOPTER. TWO CAMERA OPERATORS ONBOARD SAID THE PILOT ANNOUNCED 'WE'VE GOT A PROBLEM' AS THEY ENTERED THE SMOKE CLOUD. BOTH WITNESSES SAID THEY DID NOT HEAR THE LOW ROTOR WARNING TONE AND PERCEIVED NO CHANGE IN ENGINE SOUND DURING THE EVENT. ONE SAID HE FELT 'SIDEWARD YAWING MOTIONS' DURING THE DESCENT. THE CAMERA OPERATORS SAID THAT AFTER THE HELICOPTER EMERGED FROM THE CLOUD NEAR THE BOTTOM OF THE CRATER THE ROTOR STRUCK THE ROCK WALL.
NTSB Probable Cause Narrative
THE PILOT'S INTENTIONAL FLIGHT IN AND NEAR A VOLCANIC GAS CLOUD WHICH INDUCED A PARTIAL LOSS OF ENGINE POWER DUE TO A LACK OF COMBUSTIBLE OXYGEN IN THE ATMOSPHERE.
Event Information
| Type of Event | Accident |
| Event Date | 11/21/1992 |
| Event Day of the Week | Saturday |
| Time of Event | 1115 |
| Event Time Zone | Hawaii Standard Time |
| Event City | HILO |
| Event State | HAWAII |
| Event Country | -- |
| Zipcode of the event site | 96720 |
| Event Date Year | 1992 |
| Event Date Month | 11 |
| 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 | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| 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 | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 2000 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 5 |
| Air Temperature at event time (in degrees celsius) | -- |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 90 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | 3 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 3 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 868 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Nov 21 1992 12:00AM |
| NTSB Notification Time | 1700 |
| Fiche Number and/or location -used to find docket information | 50030 |
| Date of most recent change to record | Dec 11 2000 3:27PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N789N |
| NTSB Number | LAX93LA050 |
| 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 | BELL |
| Aircraft Model | 206B-III |
| Aircraft Series Identifier | 206B-III |
| Aircraft Serial Number | 1267 |
| 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 | Dec 16 1992 12:00AM |
| Airframe hours since last inspection | 10 |
| Airframe Hours | 13609 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | HILO BAY AIR, INC. |
| Aircraft Owner Street Address | P.O. BOX 4278 |
| Aircraft Owner City | HILO |
| Aircraft Owner State | HI |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 96720 |
| Operator is an individual? | -- |
| Operator Name | PARAMOUNT PICTURES |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 5555 MELROSE AVENUE |
| Operator City | HOLLYWOOD |
| Operator State | CA |
| Operator Country | |
| Operator Zip code | 90038 |
| 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) | Other Work Use |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | NONE |
| Departure City | HILO |
| Departure State | HI |
| Departure Country | |
| Departure Time | 1045 |
| Departure Time Zone | HST |
| 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 | Maneuvering |
| 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 | -- |