ASN Wikibase Occurrence # 30987
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| Date: | Tuesday 31 March 1998 |
| Time: | 11:00 LT |
| Type: |  Bell UH-1B |
| Owner/operator: | Colony Services, Inc. |
| Registration: | N106CP |
| MSN: | 1170 |
| Year of manufacture: | 1965 |
| Total airframe hrs: | 4024 hours |
| Engine model: | Lycoming T-53-11D |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Indiantown, Florida -
 United States of America
|
| Phase: | Landing |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On liftoff from the trailer-mounted helipad, the agricultural spray helicopter experienced engine surging, followed shortly by a complete engine failure, resulting in collision with the bank of an irrigation canal. Subsequent teardown examination of the turbine engine revealed initial failure to be high temperature tensile overload failure, (a combination of temperature and rotational speed) of one or more of the power turbine blades. The lift-off weight of the helicopter was about 169 pounds over the certificated maximum lift-off gross weight.
Probable Cause: A loss of engine power due to turbine blade failure caused by operating the engine in an over temperature and over speed condition. Contributing to the accident was the pilot's failure to observe the helicopter's maximum gross lift-off weight limit resulting in exceeding the helicopter's lift-off performance capabilities.
Accident investigation:
 |
|
Sources:
NTSB MIA98LA114
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Sep-2008 01:00 | ASN archive | Added |
| 31-Oct-2011 22:49 | Dr. John Smith | Updated [Time, Total fatalities, Total occupants, Other fatalities, Location, Country, Phase, Nature, Departure airport, Destination airport, Source, Damage, Narrative] |
| 07-Apr-2024 13:53 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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