ASN Wikibase Occurrence # 354223
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| Date: | Wednesday 1 July 1998 |
| Time: | 12:05 LT |
| Type: | American Blimp ABC-A-60 |
| Owner/operator: | Icarus Aircraft Inc |
| Registration: | N760AB |
| MSN: | 007 |
| Year of manufacture: | 1993 |
| Total airframe hrs: | 6631 hours |
| Engine model: | Limbach L 2000 ECI |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lock Haven, PA -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Williamsport, PA (IPT |
| Youngstown, OH | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot received a weather briefing in person from the Flight Service Station at the departure airport. The predicted headwinds for the planned airship flight over mountainous terrain were 15 knots gusting to 25 knots. An Airmet issued for the proposed route of flight 45 minutes after takeoff called for occasional moderate turbulence over rough terrain due to strong low-level winds. In cruise flight approximately 500-600 feet above ground level, the airship encountered '...a severe sustained downdraft...' that could not be overcome with full power and full up elevator. The airship subsequently collided with trees. An update to the same Airmet one hour after the accident called for occasional moderate and isolated severe turbulence over rough terrain.
Probable Cause: the pilot's encounter with unforecasted downdrafts.
Accident investigation:
 |
|
Sources:
NTSB IAD98LA074
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Mar-2024 20:20 | ASN Update Bot | Added |
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