ASN Wikibase Occurrence # 367111
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 April 1990 |
| Time: | 17:00 LT |
| Type: |  Cessna 310B |
| Owner/operator: | Preferred Avitation, Ltd. |
| Registration: | N6641B |
| MSN: | 35741 |
| Year of manufacture: | 1958 |
| Total airframe hrs: | 4625 hours |
| Engine model: | CONTINENTAL O-470-M |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Elizabeth, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Denver, CO (KAPA) |
| (KAPA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE COMMERCIAL, (CFI), PILOT WAS PERFORMING A TRAINING FLIGHT. DURING SINGLE ENGINE TRAINING, THE LEFT PROPELLER BEGAN AN UNCOMMANDED RETURN TO FLAT PITCH. THE CFI TOOK THE CONTROLS, MADE A PRECAUTIONARY LANDING, AND INSPECTED THE PROPELLER. AFTER AN EXTENSIVE RUNUP, THE CFI ELECTED TO ATTEMPT A TKAEOFF FROM A NEARBY DIRT ROAD. DURING INITIAL CLIMB, AT 20 FEET AGL, THE LEFT PROPELLER WENT INTO FLAT PITCH, CAUSED THE PLANE TO YAW TO THE LEFT, THE LEFT WING DROPPED AND THE PLANE LANDED HARD, WITH THE GEAR RETRACTED. THE LANDING GEAR, BOTH WINGS, AND THE GUSELAGE WERE BENT AND TWISTED. THE LEFT PROPELLER DOME SHOWED EVIDENCE OF OIL LEAKAGE OVER A PERIOD OF TIME. THE LEFT ENGINE CONTAINED 3 QUARTS OF OIL, WHICH WAS BELOW THE MINIMUM LEVEL. ONE PROPELLER BLADE ON THE LEFT ENGINE HAD A BROKEN PITCH CHANGE LINK. THE DOME WAS EXTENSIVELY CRACKED AND HAD BEGUN TO DISINTEGRATE.
Probable Cause: THE PILOT'S ATTEMPT TO TAKEOFF WITH A KNOWN DEFICIENCY AND THE PARTIAL FAILURE OF THE PROPELLER FEATHERING SYSTEM.
Accident investigation:
 |
|
Sources:
NTSB DEN90LA098
History of this aircraft
Other occurrences involving this aircraft
| 31 August 1973 | N6641B | 1 | Torrance, CA | |
min |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Mar-2024 07:36 | ASN Update Bot | Added |
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