ASN Wikibase Occurrence # 133639
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Date: | Wednesday 11 June 1997 |
Time: | 21:05 LT |
Type: | Hughes 269A-1 |
Owner/operator: | City Of Cedar Rapids |
Registration: | N1020U |
MSN: | 56-0529 |
Total airframe hrs: | 9066 hours |
Engine model: | Lycoming HIO-360-B1A |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Cedar Rapids, IA -
United States of America
|
Phase: | Take off |
Nature: | Unknown |
Departure airport: | (IA80) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:After refueling, the pilot departed north from a helipad with an observer aboard. The helicopter overflew a 50 foot building located 141 feet from the pad. The helicopter started to shudder over the building and shuddered again when it crossed a powerline located 292 feet from the pad. The observer reported the helicopter did a right, flat turn. The helicopter impacted the top crossbeam of a powerline pole, then impacted the ground in a right skid down, nose low attitude. A fire erupted. The pilot was initially pinned in the wreckage, but the observer & a truck driver, who arrived at the scene, were able to extricate the pilot. Investigation revealed evidence of continuity in the flight controls and engine, but the magnetos were fire damaged & could not be tested. Performance calculations indicated that power required for a 50' hover out of ground effect (HOGE) would have been 154 HP; power available should have been 173 HP. The local airport's (Aviation Routine Weather Report) METAR winds indicated 100 degrees at 7 knots. The wind sock at the helicopter pad was not functional. For takeoff, the pilot also had the option to depart the helipad on a heading of 140 degrees, or to depart on a heading of 320 degrees after back taxiing about 150 feet for additional takeoff distance. The pilot received serious burns & head injuries. He was wearing a polyester based police uniform & no flight helmet or gloves. The observer was wearing a Nomex flight suit and boots, but no helmet or gloves.
Probable Cause: loss of engine power due to undetermined reason(s). Related factors included the obstructions (building, utility pole, and transmission wires); and the lack of a functional windsock, due to inadequate facility maintenance by the operator.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CHI97GA166 |
Status: | Investigation completed |
Duration: | 2 years and 8 months |
Download report: | Final report |
|
Sources:
NTSB CHI97GA166
Location
Revision history:
Date/time | Contributor | Updates |
21-Dec-2016 19:26 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
08-Apr-2024 14:58 |
ASN Update Bot |
Updated [Time, Other fatalities, Phase, Departure airport, Source, Narrative, Category, Accident report] |
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