ASN Wikibase Occurrence # 38288
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| Date: | Tuesday 2 August 1988 |
| Time: | 00:00 |
| Type: |  Hughes 269B |
| Owner/operator: | Sportflight Helicopter |
| Registration: | N9522F |
| MSN: | 58-0364 |
| Total airframe hrs: | 1112 hours |
| Engine model: | LYCOMING HIO-360-A1A |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Braceville, IL -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Aurora, IL (ARR) |
| (ARR) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AT 1903 CDT ON 8/2/88, THE FLT DEPARTED AURORA, IL, ON A LOCAL FISHING TRIP. AT APRX 1930, IT WAS SEEN IN THE VICINITY OF CARBON HILL, IL. WHEN IT DID NOT RETURN FROM THE FISHING TRIP, A SEARCH WAS INITIATED. IT WAS FOUND ON 8/4/88 WHERE IT CRASHED NEAR A COOLING LAKE NEAR A NUCLEAR POWER PLANT. AN EXAM OF THE WRECKAGE REVEALED THE HELICOPTER HAD IMPACTED IN A NEAR VERTICAL DESCENT. THERE WAS EVIDENCE THE HELICOPTER WAS IN AN UPRIGHT ATTITUDE WHEN IT CRASHED. DRG IMPACT, THE CRUSH LINE MOVED UPWARD FROM THE SKIDS INTO THE BOTTOM OF THE CABIN. THE SEATS & TAILBOOM FAILED IN A DOWNWARD DIRECTION. ALL OF THE MAIN ROTOR BLADES REMAINED ATTACHED TO THE MAIN ROTOR HEAD ALTHOUGH THEY HIT THE GROUND DRG IMPACT. NO PREIMPACT PART FAILURE OR MALFUNCTION OF THE AIRFRAME OR ENG WAS FOUND DRG THE INVESTIGATION. CAUSE: CONDUCTING MANEUVERING FLIGHT THE PIC FAILED TO MONITOR THE HELICOPTER SYSTEMS AND ALLOWED THE MAIN ROTOR RPM TO DECAY TO THE POINT WHERE IT WOULD NOT PRODUCE ENOUGH LIFT TO SUSTAIN FLIGHT.
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X26486
History of this aircraft
Other occurrences involving this aircraft
| 17 March 1987 | N9522F | Sportflight Helicopter, Inc. | 0 | South Bend, IN | |
sub |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
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