ASN Wikibase Occurrence # 357964
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| Date: | Thursday 30 November 1995 |
| Time: | 23:50 LT |
| Type: |  Cessna 182Q |
| Owner/operator: | Aspen Flying Club |
| Registration: | N735JN |
| MSN: | 18265462 |
| Year of manufacture: | 1977 |
| Total airframe hrs: | 3076 hours |
| Engine model: | CONTINENTAL O-470-U |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Eads, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Englewood, CO (APA |
| Lamar, CO (KLAA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE IN NIGHT CRUISE VFR FLIGHT, THE PILOT HEARD A LOUD NOISE AND THE ENGINE LOST POWER. THE AIRPLANE SUSTAINED SUBSTANTIAL DAMAGE DURING THE ENSUING FORCED LANDING. ENGINE DISASSEMBLY DISCLOSED THE NUMBER 2 CYLINDER HAD SEPARATED FROM THE CRANKCASE AND THE PISTON WAS FRACTURED IN TWO PIECES. THERE WAS EVIDENCE OF CYLINDER ROCKING AND FRETTING. ONE THROUGH-BOLT PENETRATED THE COWLING, FOUR STUDS WERE BENT AND TWO STUDS WERE MISSING. ONE OF THE CONNECTING ROD BOLTS WAS STRIPPED AND THE OTHER HAD FAILED IN TENSION. THE NUMBER 5 CYLINDER WAS SCORED AND THE PISTON WAS ERODED. THERE WAS EVIDENCE OF HIGH HEAT DISTRESS. THE ENGINE WAS OVERHAULED IN JANUARY 1992, AND RECEIVED A PROPELLER STRIKE INSPECTION 7 MONTHS LATER. ENGINE TOTAL TIME WAS 3,301 HOURS, AND TIME SINCE MAJOR OVERHAUL WAS 1,498 HOURS.
Probable Cause: FAILURE OF THE ENGINE CONNECTING ROD BOLTS AND SEPARATION OF THE CYLINDER FROM THE CRANKCASE. FACTORS WERE THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING, AND REDUCED LIGHT CONDITIONS (DARK NIGHT).
Accident investigation:
 |
|
Sources:
NTSB FTW96LA061
History of this aircraft
Other occurrences involving this aircraft
| 22 August 1992 | N735JN | Aspen Flying Club | 0 | Crested Butte, CO | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 14-Mar-2024 08:29 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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