ASN Wikibase Occurrence # 36210
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| Date: | Tuesday 4 May 1993 |
| Time: | 02:40 LT |
| Type: |  Beechcraft E18S |
| Owner/operator: | Viking Express, Inc. |
| Registration: | N80CB |
| MSN: | BA257 |
| Total airframe hrs: | 15027 hours |
| Engine model: | P&W R-985-14B |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Lone Rock, WI -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Aurora, IL (KARR) |
| Minneapolis, MN (MSP | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT OF A TWIN-ENGINE CARGO AIRPLANE SHUT DOWN THE LEFT ENGINE AND FEATHERED THE PROPELLER DUE TO A LOSS OF ENGINE OIL. THE FAA ARTCC HANDLING THE FLIGHT VECTORED THE AIRPLANE TOWARD A VOR. DUE TO THE AIRPLANE'S ALTITUDE AND DISTANCE FROM THE CENTER'S RADAR, THE PILOT OF THE AIRPLANE HAD TO PERFORM A FULL INSTRUMENT APPROACH PROCEDURE. THE AIRPLANE MAINTAINED ITS ENROUTE ASSIGNED ALTITUDE UNTIL PASSING THE VOR OUTBOUND. NTAP READOUTS SHOW THE AIRPLANE DESCENDING THROUGHOUT THE PROCEDURE TURN AND INBOUND LEG OF THE APPROACH. THE AIRPLANE'S LAST RADAR CONTACT WAS 300 FEET BELOW THE INBOUND ALTITUDE FOR THE APPROACH WHILE OUTSIDE THE FINAL APPROACH FIX. THE AIRPLANE COLLIDED WITH TREES AND TERRAIN APPROXIMATELY 2 1/4 MILES FROM THE AIRPORT. THE VOR IS 5.5 MILES FROM THE AIRPORT. THE ON-SCENE INVESTIGATION REVEALED THE LEFT ENGINE'S PROPELLER HAD BEEN FEATHERED, ITS NUMBER NINE CYLINDER MOUNTING STUDS ON THE ENGINE'S CASE WERE CRUSHED DOWNWARD OR WERE BROKEN OFF AT THE CASE'S SURFACE, AND THE LANDING GEAR HAD BEEN EXTENDED.
Probable Cause: was a pre-mature extension of the landing gear by the pilot which resulted in the inability of the pilot to maintain the minimum descent altitude. Factors related to the accident were the loose cylinder and loss of oil.
Accident investigation:
 |
|
Sources:
NTSB CHI93FA158
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:22 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 14:15 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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