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Accidents · NTSB MIA91LA221 · Final report

Amateur-built LOGANAIR I accident near Gainesville, Florida, September 21, 1991

On September 21, 1991 at about 9:45 am local time, a amateur-built LOGANAIR I, registered N931JL, was destroyed in an accident near Gainesville, Florida. It was a personal flight under general aviation rules (Part 91). 2 people were killed. The weather was instrument conditions (cloud, fog or low visibility).

The NTSB's probable cause their words, unchanged

THE NON-INSTRUMENT RATED PILOT IN COMMAND'S DECISION TO DEPART UNDER SPECIAL VISUAL FLIGHT RULE CLEARANCE IN INSTRUMENT FLIGHT RULES CONDITIONS DURING DARKNESS WITH A FAILED VACUUM PUMP AND RESULTING INOPERATIVE FLIGHT INSTRUMENTS WHICH RESULTED IN AN INFLIGHT LOSS OF CONTROL DUE TO SPATIAL DISORIENTATION.

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

What the record shows

Date
September 21, 1991 · about 9:45 am local time
Place
Gainesville, Florida
Type
Accident
Injuries
2 people were killed.
Weather
instrument conditions (cloud, fog or low visibility)
Aircraft
Amateur-built LOGANAIR I
Registration
N931JL · no longer on the register · serial JL3054
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

THE VACUUM PUMP FAILED AND NON-INSTRUMENT RATED PILOT ACCEPTED AN IFR CLEARANCE TO LAND AT GAINESVILLE. DURING THE APPROACH THE PILOT DESCENDED BELOW ASSIGNED ALTITUDE AND CONFLICTED WITH OTHER TRAFFIC. AFTER LANDING THE PILOT DID NOT HAVE THE VACUUM PUMP REPAIRED. THE NEXT MORNING THE PILOT CALLED FSS AND REQUEST A SPECIAL VFR CLEARANCE TO DEPART GAINESVILLE WHILE IT WAS STILL DARK AND IFR CONDITIONS. SHORTLY AFTER DEPARTURE THE FLIGHT WAS OBSERVED MANEUVERING AT A LOW ALTITUDE AND PITCH UP AND ENTER CLOUDS. THE FLIGHT THEN DESCENDED FROM THE CLOUDS AND COLLIDED WITH THE GROUND.

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: private
  • Ratings: single-engine land
  • Flight time: 6,000 hours in all; 165 in this make and model
  • Medical certificate: Class 3 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 165 hours
  • Last inspection: annual inspection, November 20, 1990; 100 hours since
  • Maximum gross weight: 2,450 lb
  • Seats: 2
  • Landing gear: retractable
  • Engine: Lycoming IO-540-K1A5 (piston); 0 hours total
  • Fire on the ground

The flight

  • Destination: 1X4 Boynton Beach FL
  • Flight plan: VFR
  • Runway 0

Weather at the time

  • Light: night, dark
  • Wind: from 340° at 6 knots
  • Visibility: 2 statute miles
  • Sky: overcast at 600 ft; not recorded
  • Temperature: 64°F (18°C), dew point 63°F (17°C)
  • Altimeter: 30.00 inHg
  • Observation at 9:48 am from GNV, 10 miles away

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

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.