ASN Wikibase Occurrence # 189560
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Thursday 25 August 2016 |
| Time: | 10:05 |
| Type: |  Cessna U206G Turbine Stationair |
| Owner/operator: | State Of Illinois |
| Registration: | N891LL |
| MSN: | U206-06937 |
| Year of manufacture: | 1986 |
| Total airframe hrs: | 6170 hours |
| Engine model: | Allison 250-C20S |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Loves Corner N of Cave-In-Rock, IL -
 United States of America
|
| Phase: | En route |
| Nature: | Survey |
| Departure airport: | Springfield, IL (SPI) |
| Springfield, IL (SPI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airline transport pilot and camera operator were conducting an aerial mapping flight. While level at 3,500 ft above ground level, the turbo propeller-equipped airplane experienced a total loss of engine power. The pilot attempted to restart the engine three times without success. During the subsequent forced landing, the airplane struck a berm, which damaged both wings.
Examination of the engine revealed that fuel would not flow to the fuel nozzle until air pressure was bled upstream of the check valve assembly, located between the engine fuel control and the fuel nozzle. After the air pressure was bled and the fuel pump purged, normal fuel flow resumed, indicating that air had entered the fuel system. Because of the check valve assembly design, an in-flight engine restart was not possible after air entered the fuel line, and there was no procedure to clear air from the fuel line while in flight. Examination of the engine and fuel system could not establish a reason for air entering the fuel line.
Probable Cause: A total loss of engine power due to air entering the fuel system for reasons that could not be determined based on available information. Contributing to the accident was the pilot’s inability to restart the engine due to the check valve assembly design.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=891LL
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Aug-2016 20:52 | Geno | Added |
| 25-Aug-2016 21:21 | Geno | Updated [Aircraft type, Registration, Cn, Operator, Source] |
| 16-Sep-2018 18:15 | ASN Update Bot | Updated [Time, Operator, Total occupants, Nature, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
| 16-Sep-2018 18:53 | harro | Updated [Phase, Nature, Source, Narrative] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation