ASN Wikibase Occurrence # 40591
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| Date: | Monday 9 December 1991 |
| Time: | 21:47 LT |
| Type: |  MBB Bo 105CBS-4 |
| Owner/operator: | Omniflight Helicopters, Inc. |
| Registration: | N750H |
| MSN: | S644 |
| Year of manufacture: | 1983 |
| Total airframe hrs: | 2241 hours |
| Engine model: | ALLISON 250-C20B |
| Fatalities: | Fatalities: 3 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | De Ruyter, NY -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Ithaca, NY (KITH) |
| Utica, NY | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE MEDIVAC HELICOPTER WAS CRUISING AT 2700 FEET (700 FT AGL) WHEN IT SUDDENLY ENTERED A RIGHT TURN OF 95 DEG IN 15 SEC WHILE MAINTAINING ALTITUDE. THIS WAS FOLLOWED BY A DESCENDING LEFT TURN OF 60 DEG IN LESS THAN 5 SECONDS. THE HELICOPTER IMPACTED IN A SKIDS LEVEL, NOSE DOWN PITCH ATTITUDE. THE ACCIDENT OCCURRED AT NIGHT OVER AN UNLIGHTED AREA WITH OVERCAST CLOUD CONDITIONS. INTERVIEWS AND EXAMINATION OF COMPANY CORRESPONDENCE DISCLOSED THE PILOT HAD A DOCUMENTED PROBLEM WITH NIGHT FLYING AND NAVIGATION.
Probable Cause: AN INFLIGHT COLLISION WITH TERRAIN AFTER THE PILOT EXPERIENCED SPATIAL DISORIENTATION. FACTORS RELATED TO THE ACCIDENT WERE THE NIGHT CONDITIONS, AND THE LACK OF VISUAL CUES.
Accident investigation:
 |
|
Sources:
NTSB NYC92FA044
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 07-Feb-2009 10:14 | harro | Updated |
| 25-Oct-2012 12:17 | TB | Updated [Aircraft type, Cn, Source, Narrative] |
| 11-Oct-2016 17:12 | TB | Updated [Source] |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 11-Apr-2024 10:55 | ASN Update Bot | Updated [Time, Cn, Operator, Other fatalities, Nature, Departure airport, Source, Narrative, Category, Accident report] |
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