ASN Wikibase Occurrence # 366359
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 16 August 1990 |
| Time: | 14:42 LT |
| Type: |  Piper PA-23-160 |
| Owner/operator: | Joanne Bailey |
| Registration: | N4231P |
| MSN: | 1728 |
| Engine model: | LYCOMING O-320-B3B |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Odell, IL -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Bloomington, IL (KBMI) |
| Chicago, IL (KMDW) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING FLIGHT THE LEFT ENGINE BEGAN RUNNING ROUGH AND VIBRATING SEVERELY, AND IT WAS SHUT DOWN. THE PILOT WAS UNABLE TO MAINTAIN ALTITUDE ON THE RIGHT ENGINE AND A FORCED LANDING WAS MADE IN AN ALFALFA FIELD. EXAMINATION REVEALED THAT THE LEFT ENGINES RIGHT MAGNETO HAD AN ACCUMULATION OF OIL INSIDE ITS CASE. IN ADDITION, THE SPARK PLUG LEAD FROM THE LEFT MAGNETO FOR THE #1 CYLINDER WAS INTERNALLY DAMAGED. EXAMINATION OF THE RIGHT ENGINE REVEALED THAT THE INTAKE DUCT BETWEEN THE AIR FILTER AND THE CARBURETOR WAS DETERIORATED FROM EXPOSURE TO HOT EXHAUST PIPES. A 3' X 1/2' PIECE OF THE DUCT HAD SEPARATED AND WAS FOUND CAUGHT ON THE CARBURETOR VENTURI.
Probable Cause: A LOSS OF LEFT ENGINE POWER DUE TO OIL ACCUMULATION IN THE RIGHT MAGNETO AND A NON-USABLE SPARK LEAD FROM THE LEFT MAGNETO. IN ADDITION, THE RIGHT ENGINE WAS UNABLE TO PROVIDE ADEQUATE POWER TO MAINTAIN ALTITUDE DUE TO A PARTIAL BLOCKAGE IN THE CARBURETOR BY A SECTION OF AIR INTAKE DUCT WHICH CAUSED THE ENGINE TO RUN RICH.
Accident investigation:
 |
|
Sources:
NTSB CHI90FA233
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 20:12 | 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