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Accidents · NTSB IAD98LA074 · Final report

American Blimp Corp. ABC-A-60 accident near Lock Haven, Pennsylvania, July 1, 1998

On July 1, 1998 at about 3:05 pm local time, a American Blimp Corp. ABC-A-60 (airship), registered N760AB, was substantially damaged in an accident near Lock Haven, Pennsylvania. It was a positioning flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

the pilot's encounter with unforecasted downdrafts.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
July 1, 1998 · about 3:05 pm local time
Place
Lock Haven, Pennsylvania · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
American Blimp Corp. ABC-A-60
Registration
N760AB · registry record · serial 007
Damage
Substantial damage
Flight
Positioning flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

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.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

Pilot

  • Certificate: airline transport pilot, commercial pilot
  • Ratings: multi-engine land; single-engine land; instrument: airplane; instrument: helicopter; rotorcraft: airship; rotorcraft: helicopter
  • Flight time: 5,022 hours in all; 2,000 in this make and model; 168 in the last 90 days; 45 in the last 30 days; 4,000 as pilot in command; 750 on instruments
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 6,631 hours
  • Last inspection: annual inspection, June 23, 1998; 30 hours since
  • Maximum gross weight: 4,394 lb
  • Seats: 5
  • Landing gear: fixed
  • Engine: Limbach L 2000 ECI (piston); 0 hours total

The flight

  • Departed from: IPT Williamsport PA at 1:00 pm
  • Destination: YNG Youngstown OH
  • Flight plan: VFR
  • Runway 0
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 270° at 16 knots, gusting 19
  • Visibility: 10 statute miles
  • Sky: broken clouds at 7,000 ft; scat at 5,500 ft
  • Temperature: 73°F (23°C), dew point 54°F (12°C)
  • Altimeter: 29.00 inHg
  • Observation at 2:54 pm from IPT, 30 miles away

Injuries

FatalSeriousMinorNone
Crew2

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.