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Accidents · NTSB NYC84FA137 · Preliminary: the investigation is not finished

Amateur-built AA-1C accident near Marlboro, New Jersey, April 10, 1984

On April 10, 1984 at about 6:37 pm local time, a amateur-built AA-1C, registered N9950U, was destroyed in an accident near Marlboro, New Jersey (Marlboro airport). It was a personal flight under general aviation rules (Part 91). 2 people were killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

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

What the record shows

Date
April 10, 1984 · about 6:37 pm local time
Place
Marlboro, New Jersey · Marlboro
Type
Accident
Injuries
2 people were killed.
Weather
visual conditions (good weather)
Aircraft
Amateur-built AA-1C
Registration
N9950U · no longer on the register · serial AA1C-0164
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

PILOT AND PAX DEPARTING 2170 FT RWY AT NEAR MAX GROSS WEIGHT PAX STATED IT DIDNT APPEAR AS IF THEY WERE GOING TO CLEAR HIGH TENSION POWER LINES LOCATED ABOUT 2400 FT FROM RWY END.PILOT MADE LEFT TURN AND IMPACTED UNMARKED WIRES ABOUT 600 FT LEFT OF EXTENDED CENTERLINE.IT WAS WITHIN THE A/C PERFORMANCE CAPABILITIES TO CLEAR THE WIRE OBSTRUCTIONS OF THE RWY END,HOWEVER,THE LOSS OF LIFT IN THE PREMATURE LEFT TURN RESULTED IN A DEGREDATION OF A/C PERFORMANCE. THE PILOT WAS NOTABLE TO CLEAR THE ADDITIONAL WIRES DURING THE TURN.

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
  • Medical certificate: Class 3 (expired)
  • Seat: left

The aircraft

  • Airframe total time: 1,483 hours
  • Last inspection: annual inspection, May 15, 1982; 96 hours since
  • Maximum gross weight: 1,600 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-235-L2C (piston); 0 hours total

The flight

  • Departed from: 2N8 Marlboro NJ
  • Flight plan: none
  • Runway 9, 2,170 ft by 40 ft

Weather at the time

  • Light: daylight
  • Wind: from 010° at 13 knots
  • Visibility: 25 statute miles
  • Sky: scat at 25,000 ft
  • Temperature: 57°F (14°C), dew point 18°F (-8°C)
  • Altimeter: 30.00 inHg
  • Observation at 6:52 pm from EWR, 20 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.