ASN Wikibase Occurrence # 292219
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| Date: | Tuesday 6 June 2006 |
| Time: | 16:50 LT |
| Type: |  Schweizer 269C |
| Owner/operator: | Lake County Board Of Commissioners |
| Registration: | N54LC |
| MSN: | S1581 |
| Year of manufacture: | 1991 |
| Total airframe hrs: | 1449 hours |
| Engine model: | Lycoming HIO-360-D1A |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Schererville, IN -
 United States of America
|
| Phase: | Unknown |
| Nature: | Unknown |
| Departure airport: | Griffith, IN (05C) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter sustained substantial damage when it impacted terrain following a practice autorotation and subsequent loss of engine power. The helicopter was operating as a public-use instructional flight. The pilot stated, in part, "Immediately upon reducing the throttle and lowering the collective, the engine of the helicopter stopped. This was confirmed by the indication of the "split" needles and engine RPM indicating zero RPM. This was further confirmed by the manifold pressure gauge which was rising to atmospheric pressure. This practice autorotation had turned into a real total loss of engine power autorotation to touchdown. ... [After touchdown,] the main rotor blade flex downward and came in contact with the tail boom section causing the tail rotor to separate." Wind in the area was 220 degrees at 13 knots gusting to 19 knots. An examination of the wreckage revealed no preimpact anomalies. The engine was operational during a subsequent test run.
Probable Cause: The pilot's improper autorotation following an actual loss of engine power during a practice autorotation, which resulted in a hard landing. A factor associated with the accident was the loss of engine power at the beginning of the practice autorotation for an undetermined reason.
Accident investigation:
 |
|
Sources:
NTSB CHI06TA148
History of this aircraft
Other occurrences involving this aircraft
| 13 June 2008 | N54LC | Whirlybird Helicopters | 0 | West Desert Air Park, Cedar Valley, UT | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 08-Oct-2022 15:55 | ASN Update Bot | Added |
| 31-May-2023 05:50 | Ron Averes | Updated |
Corrections or additions? ... Edit this accident description
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