ASN Wikibase Occurrence # 354039
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Sunday 26 July 1998 |
| Time: | 19:00 LT |
| Type: | Revolution Mini-500 |
| Owner/operator: | Private |
| Registration: | N805JJ |
| MSN: | 0236 |
| Total airframe hrs: | 52 hours |
| Engine model: | Rotax 582ULDCDI |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Shermans Dale, PA -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Klingerstown, PA (NA |
| (0PA2) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
After 45 minutes of flight, and on final approach, the engine lost power. The helicopter landed hard, the main rotor struck the tail boom, and the helicopter rolled over on its left side. Examination of the helicopter revealed fuel and oil were available, and the throttle linkage was intact. The pilot/owner had recently installed a Power Enhancement Package to the Rotax 582 UL DCDI engine, and adjusted the needle jets to produce suitable EGTs. Based on subsequent research, the pilot stated that engine problems could have occurred going from half, to full throttle rapidly because the main jet was too restrictive to allow enough fuel to pass through quickly. The NTSB database revealed 23 Mini-500 accidents in 1997 and 1998. Within that list, 11 involved a loss of engine power. The Rotax 582 operator's manual stated: ' Danger! This engine, by its design, is subject to sudden stoppage! Engine stoppage can result in crash landings. Such crash landings can lead to serious bodily injury or death. Never fly the aircraft equipped with this engine at locations, airspeeds, altitudes, or other circumstances from which a successful no-power landing cannot be made, after sudden engine stoppage.'
Probable Cause: The builder/pilot's carburetor modification that did not allow for rapid fuel demand, which resulted in a loss of engine power of final approach.
Accident investigation:
 |
|
Sources:
NTSB NYC98LA154
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Mar-2024 18:21 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation