ASN Wikibase Occurrence # 369024
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| Date: | Monday 27 March 1989 |
| Time: | 13:20 LT |
| Type: |  Beechcraft F33A |
| Owner/operator: | Private |
| Registration: | N3042Z |
| MSN: | CE1114 |
| Total airframe hrs: | 582 hours |
| Engine model: | CONTINENTAL IO-520-BB |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lamar, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Denver, CO (KAPA) |
| Dodge City, KS (KDDC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DRG A X-COUNTRY FLT THE ALTERNATOR OUT LIGHT ILLUMINATED & THE PLT DIVERTED TO THE CLOSEST ARPT WHICH WAS AT LAMAR, CO. THE ACFT ARRIVED AT LAMAR WITH THE ELECTRICAL SYSTEM DEPLETED. THE PLT WAS UNABLE TO EXTEND THE LANDING GEAR WITH THE NORMAL (ELECTRICAL) SYSTEM, SO SHE EXTENDED THE GEAR MANUALLY TO WHAT SHE THOUGHT WAS THE FULLY EXTENDED POSITION. SHE SAID THE ENG OIL PRESSURE GAUGE WAS INDICATING LOW, SO SHE ELECTED TO LAND ON A ROAD. DURING THE LANDING ALL THREE GEAR COLLAPSED. BEFORE STOPPING, THE ACFT WENT OFF THE SIDE OF THE ROAD & WAS FURTHER DAMAGED. A POST-ACDNT INSPN OF THE ACFT REVEALED AN ALTERNATOR BEARING HAD FAILED. NO REASON FOR THE RPRTD DROP IN OIL PRESSURE WAS FND.
Probable Cause: FAILURE OF AN ALTERNATOR BEARING WHICH RESULTED IN TOTAL LOSS OF ELECTRICAL POWER AFTER THE BATTERY BECAME DISCHARGED, AND FAILURE OF THE PILOT TO INSURE THE GEAR WAS FULLY EXTENDED DURING A PRECAUTIONARY LANDING. THE PILOT'S LACK OF FAMILIARITY WITH THE GEAR EXTENSION SYSTEM WAS A CONTRIBUTING FACTOR.
Accident investigation:
 |
|
Sources:
NTSB DEN89LA095
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Mar-2024 10:00 | ASN Update Bot | Added |
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