ASN Wikibase Occurrence # 356398
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 19 December 1996 |
| Time: | 15:21 LT |
| Type: |  Piper PA-46-500TP Meridian |
| Owner/operator: | Chb Express Ltd |
| Registration: | N446RD |
| MSN: | 46-8408073 |
| Total airframe hrs: | 2400 hours |
| Engine model: | Continental TSIO 550 B2B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Red Oak, IA -
 United States of America
|
| Phase: | Landing |
| Nature: | Executive |
| Departure airport: | Milford, IA (4D8) |
| (KRDK) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The temperature at takeoff was about 0 degrees F. The aircraft had been kept in an unheated hangar. An oil heater was installed on the aircraft. Oil pressure was in the yellow arc during departure and it stayed in the yellow arc during the flight. The pilot continued the flight although suitable airports were available for precautionary landings. After about 30 to 45 minutes of flight, the prop started surging and the oil pressure went 'way down.' After about a minute, the engine started knocking and quit. The pilot executed a forced landing. After the accident, oil was all over the top of the engine, the oil cap was on tight, and about 4 quarts of oil still showed on the oil dipstick. The engine inspection revealed a hole in the crankcase above the number 2 and 4 cylinders. The number 2, 3, and 5 connecting rod bearings were burned with signs of meltdown. The number 4 connecting rod and bearing had separated from the crankshaft and exhibited heat damage and failure. The oil passages were checked and no obstructions were found. The oil cooler was checked and fluids flowed through the cooler.
Probable Cause: the pilot's inadequate preflight and failure to make a precautionary landing. Additional factors included oil starvation and the failed connecting rod and rod bearing.
Accident investigation:
 |
|
Sources:
NTSB CHI97LA050
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Mar-2024 06:49 | 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