ASN Wikibase Occurrence # 37763
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| Date: | Tuesday 6 April 1993 |
| Time: | 04:35 LT |
| Type: |  Mitsubishi MU-2B-35 |
| Owner/operator: | Casper Air Service |
| Registration: | N96JP |
| MSN: | 556 |
| Year of manufacture: | 1971 |
| Total airframe hrs: | 4781 hours |
| Engine model: | GARRETT TPE 331-6-252 |
| Fatalities: | Fatalities: 4 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | 8.5 miles from Natrona County International Airport, Casper, Wyoming. -
 United States of America
|
| Phase: | Approach |
| Nature: | Unknown |
| Departure airport: | Riverton, WY (KRIW) |
| (KCPR) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE AIRCRAFT WAS ON AN AIR AMBULANCE (EMS) FLIGHT AND WAS CLEARED FOR THE ILS RUNWAY 8 APPROACH AT CASPER, WY. RADAR DATA SHOWED THE AIRCRAFT TRACKING AND DESCENDING NORMALLY ON THE DME ARC, UNTIL IT WAS BELOW RADAR COVERAGE FOR THE AREA. SUBSEQUENTLY, IT COLLIDED WITH THE TOP OF A RIDGE, ALONG THE LOCALIZER CENTERLINE, BEFORE REACHING THE OUTER MARKER, ABOUT 8 MILES FROM THE AIRPORT. ELEVATION OF THE CRASH SITE WAS ABOUT 5800 FEET; MINIMUM DESCENT ALTITUDE BEFORE INTERCEPTING THE ILS GLIDE SLOPE WAS 7100 FEET; CROSSING ALTITUDE AT THE OUTER MARKER WAS 6700 FEET.
Probable Cause: FAILURE OF THE PILOT TO MAINTAIN PROPER ALTITUDE DURING THE NIGHT IFR APPROACH IN INSTRUMENT METEOROLOGICAL CONDITIONS (IMC).
Accident investigation:
 |
|
Sources:
NTSB SEA93FA088
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?nNumberTxt=96JP
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 07-Feb-2009 10:35 | harro | Updated |
| 13-Sep-2013 06:45 | wf | Updated [Operator, Location] |
| 06-Mar-2016 01:43 | Dr.John Smith | Updated [Time, Location, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 15:00 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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