ASN Wikibase Occurrence # 38711
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: | Saturday 21 March 1998 |
| Time: | 17:52 |
| Type: |  Cessna U206G Stationair |
| Owner/operator: | Greater Kansas City Skydiving Club |
| Registration: | N506SD |
| MSN: | U20604830 |
| Year of manufacture: | 1979 |
| Fatalities: | Fatalities: 6 / Occupants: 6 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Grain Valley, MO -
 United States of America
|
| Phase: | En route |
| Nature: | Parachuting |
| Departure airport: | Independence Memorial Airport, MO (3IP) |
| East Kansas City Airport, MO (3GV) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On March 21, 1998, at 1752 central standard time, a Cessna U206G, N506SD, piloted by a commercial pilot was destroyed during a collision with the ground and post-impact fire. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 parachute jump flight was not operating on a flight plan. The pilot and five parachute jumpers were fatally injured. The flight departed Independence, Missouri, exact time unknown.
The parachute jump flight's airplane was at 3,700 feet MSL when the pilot cancelled the operation with the FAA approach controller without explanation. Witnesses observed the airplane trailing white and black smoke. One witness said he saw the airplane trailing black smoke with its engine making a banging sound. Three witnesses at the accident airport said the airplane had smoke and flames coming from the airplane's cowl and along the windshield as it approached the airport. They said the airplane banked right at a low altitude with its right wingtip striking the ground. The airplane caught fire during the collision sequence.
The on-scene investigation revealed the engine, left side of the fuselage, bottom of left wing and its strut and the horizontal stabilizer and elevator were covered with oil film. The engine's oil filler tube was missing. The three filler tube mounting screws were not found at the accident site. Two of the 3 filler tube screw mounting holes had 2 of the screw threads next to the engine case's exterior surface pulled upward. The third screw hole threads were not pulled.
The number 6 cylinder valve rocker arm cover had 5 of its 6 screws missing. The remaining screw was loose. The number 6 cylinder's bottom spark plug lead nut was disconnected. Its threads were not pulled. Examination of the engine revealed about 70 percent of the oil screen was covered by silver and bronze colored metallic debris. Holes were observed on the engine's left crankcase section near cylinders number 2 and 6. The engine's internal components suffered damage typical of oil loss and heat distress. The fracture face features on the engine's fractured left crankcase section were typical of over stress.
Probable Cause: Pilot's inadequate pre-flight, the partial loss of oil and the resulting rod failure. A factor was the pilot's failure to maintain flying speed.
Accident investigation:
 |
|
Sources:
NTSB
2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=506SD
Images:
Photos: NTSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Aug-2010 09:29 | TB | Updated [Other fatalities, Nature] |
| 24-Jun-2016 21:11 | Dr.John Smith | Updated [Time, Operator, Source, Narrative] |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 23:33 | Dr. John Smith | Updated [Narrative] |
| 18-Oct-2022 11:36 | Captain Adam | Updated [Aircraft type, Departure airport, Destination airport, Source, Narrative, Accident report, Photo] |
| 18-Oct-2022 11:36 | Captain Adam | Updated [Photo] |
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