Individually Owned: 151,845
Corporate Owned: 143,699
Aircraft Accident/Incident Report
Bedfordshire
Thursday, September 30, 2010 8:25 UTC
NTSB Narrative Summary Released at Completion of Accident
On September 30, 2010, at 0825 universal coordinated time (UTC), a Cessna 680, G-CJCC, operated by Bookajet, experienced a left main bus electrical system fault, approximately 20 minutes after taking off from Luton Airport (EGGW), en route to the Milas-Bodrum Airport (LTFE), Milas, Turkey. The flight crew completed the required checklists and returned to EGGW. Upon landing at EGGW, it was determined that the left main fuel tank was full with 5,500 pounds of fuel and the right fuel tank contained 3,300 pounds of fuel.
AAIB issued Special Bulletin S1/2010 on October 8, 2010. The bulletin states in part, "This incident and subsequent ground testing showed that removal of power from the left main bus will cause the fuel cross-feed valve to open and the right boost pump to operate without any crew selection, and the motive-flow shutoff valves will remain open. This allows motive-flow fuel to be returned to both tanks, resulting in uncommanded fuel transfer from the right to the left tank. During the 20 minutes that elapsed between selecting the left generator OFF and landing at Luton, sufficient fuel was transfered from the right to the left tank, via the left engine motive-flow system, to create a fuel imbalance of 2,200 lbs. The crew were not aware that this was occurring, as only the right fuel quantity indication was available."
This incident is under the jurisdiction and control of the Air Accident Investigation Branch (AAIB). This report is for informational purposes only and contains only information released by or obtained from the government of the United Kingdom. Further information pertaining to this incident may be obtained from:
Air Accident Investigation Branch
Department for Transport
Farnborough Copse Road
Aldershot, Hampshire
GU11 2HH, United Kingdom
Tel: +44(0) 1252 510300
Email: investigations@aaib.gov.uk
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Incident |
| Event Date | 9/30/2010 |
| Event Day of the Week | Thursday |
| Time of Event | 825 |
| Event Time Zone | Coordinated Universal Time? Same as GMT |
| Event City | Bedfordshire |
| Event State | -- |
| Event Country | -- |
| Zipcode of the event site | -- |
| Event Date Year | 2010 |
| Event Date Month | 9 |
| 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 | -- |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | -- |
| Time of the weather observation | |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | -- |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | -- |
| Lighting Conditions | -- |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| Sky Condition for Lowest Ceiling | -- |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | -- |
| Air Temperature at event time (in degrees celsius) | -- |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | -- |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 8 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | Foreign |
| NTSB Docket Number (internal use) | -- |
| NTSB Notification Source | AAIB |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Dec 1 2010 7:43AM |
| User who most recently changed record | johb |
| Basic weather conditions | -- |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | -- |
| NTSB Number | CEN10WA583 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Non-U.S., Non-Commercial |
| Type of Flight Plan filed | -- |
| Flight plan Was Activated? | -- |
| Damage | None |
| Aircraft Fire | None |
| Aircraft Explosion | -- |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 680 |
| Aircraft Series Identifier | NO SERIES |
| Aircraft Serial Number | -- |
| Certified Max Gross Weight | -- |
| Aircraft Category | -- |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | -- |
| Number of Engines | -- |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | -- |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Unknown |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | Viking Airways Limited |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | -- |
| Aircraft Owner State | -- |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | -- |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | -- |
| Operator State | -- |
| Operator Country | USA |
| Operator Zip code | -- |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| 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) | Business |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | -- |
| Departure Airport Code | -- |
| Departure City | -- |
| Departure State | -- |
| Departure Country | -- |
| Departure Time | -- |
| Departure Time Zone | -- |
| Destination Same as Local Flt | -- |
| Destination Airport Code | -- |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 6 2010 3:18PM |
| User who most recently changed record | sulp |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | -- |
| Air Medical Flight | -- |
| Medical Flight | -- |