IAD98LA074 · American Blimp Corp. ABC-A-60
American Blimp Corp. ABC-A-60 · Accident: in flight encounter with weather en route
From Williamsport Regional Airport (IPT) to Youngstown Warren Regional Airport (YNG)
Event
- NTSB case
- IAD98LA074
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
American Blimp Corp. ABC-A-60
- Aircraft type
- American Blimp ABC-A-60
- Category
- Blimp
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N760AB
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Williamsport Regional Airport (IPT), Williamsport, PATo Youngstown Warren Regional Airport (YNG), Youngstown, OH
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- En route · cruise
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- In flight encounter with weather
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Weather condition › Downdraft
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
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.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record IAD98LA074
- Event ID
- 20001211X10604
- Case number
- IAD98LA074
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: dffc05aedd059fc6d2daf4566b4257fddbeb0365608d9e17bbc1db6e60a8aba2; retrieved 2026-09-22T17:35:32.357Z.