Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Mekoryuk, Alaska 99630
Wednesday, June 1, 1983 12:58 AKD
NTSB Narrative Summary Released at Completion of Accident
WHILE CLIMBING IN IFR CONDITIONS AFTER TAKEOFF, THE #1 ENG LOST POWER. THE PLT DUMPED FUEL & LANDED ON AN OIL EXPLORATION PLATFORM. WHILE DUMPING FUEL, THE #1 JETTISON SYS OPERATED NORMALLY, BUT THE CIRUIT BREAKER POPPED ON THE #2 SYS. THE AIRCREW RESET THE CIRCUIT BREAKER & WERE ABLE TO OPEN THE VALVE, BUT THE CIRCUIT BREAKER POPPED AGAIN. THEY WERE ABLE TO CLOSE THE #2 JETTISON VALVE BY HOLDING THE CIRCUIT BREAKER IN. AN INVESTIGATION REVEALED THAT THE LOWER ACCESSORY LEVEL GEAR, PN 2-070-024-01, IN THE #1 ENG, HAD FAILED.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Incident |
| Event Date | 6/1/1983 |
| Event Day of the Week | Wednesday |
| Time of Event | 1258 |
| Event Time Zone | -- |
| Event City | MEKORYUK |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99630 |
| Event Date Year | 1983 |
| Event Date Month | 6 |
| 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 | Full |
| 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 | 300 |
| Lowest Non-Ceiling Height | 200 |
| Sky/Lowest/Cloud Conditions | Partial Obscuration |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 0 |
| Air Temperature at event time (in degrees celsius) | 4 |
| Dew Point at event time (in degress fahrenheit) | 1 |
| Wind Direction (degrees magnetic) | 290 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| 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 | 19 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 5109 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 23795 |
| Date of most recent change to record | Dec 18 2002 11:28AM |
| User who most recently changed record | NTSB\GIUV |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N234BV |
| NTSB Number | ANC83IA089 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91F: Special Flt Ops. |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | None |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | BOEING VERTOL |
| Aircraft Model | 234ER |
| Aircraft Series Identifier | 234ER |
| Aircraft Serial Number | MJ016 |
| Certified Max Gross Weight | 48500 |
| Aircraft Category | Helicopter |
| Aircraft Registration Class | U.S. Registered/Foreign Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 19 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | May 29 1983 12:00AM |
| Airframe hours since last inspection | 9 |
| Airframe Hours | 99 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | 234 I INC.C/O BOEING VERTOL |
| Aircraft Owner Street Address | PO BOX 16858 |
| Aircraft Owner City | PHILADELPHIA |
| Aircraft Owner State | PA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 19142 |
| Operator is an individual? | -- |
| Operator Name | ATLANTIC RICHFIELD CO. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 8601 LEMMON AVE. |
| Operator City | DALLAS |
| Operator State | TX |
| Operator Country | |
| Operator Zip code | 75209 |
| 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 | Unknown |
| Indicates Domestic or International Flight | Unknown |
| Operator carrying Pax/Cargo/Mail | Unknown |
| Type of Flying (Per_Bus / Primary) | Business |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | 708 |
| Departure City | BERING SEA |
| Departure State | AK |
| Departure Country | |
| Departure Time | 1256 |
| Departure Time Zone | |
| Destination Same as Local Flt | -- |
| Destination Airport Code | OME |
| Destination City | NOME |
| Destination State | AK |
| Destination Country | |
| Specific Phase of Flight | Climb |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM |
| 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 | -- |