Cessna 150L accident near Doylestown, Pennsylvania, July 12, 1989
On July 12, 1989 at about 3:45 pm local time, a Cessna 150L, registered N10659, was substantially damaged in an accident near Doylestown, Pennsylvania (Doylestown airport). It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured; 1 other was unhurt. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
IMPROPER PREFLIGHT PREPARATION BY THE PILOT BY TAKING OFF WITH THE FLAPS EXTENDED, WHICH RESULTED IN AN INADEQUATE RATE OF CLIMB TO CLEAR OBSTRUCTIONS BEYOND THE END OF THE RUNWAY, AND THE PILOT'S DELAY IN ABORTING THE TAKEOFF AND HIS FAILURE IN MAINTAINING AIRSPEED, WHICH REDUCED HIS ABILITY TO FLARE THE AIRCRAFT. THE HIGH OBSTRUCTIONS (TREES) NEAR THE END OF THE RUNWAY WERE CONSIDERED TO BE A FACTOR.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 12, 1989 · about 3:45 pm local time
- Place
- Doylestown, Pennsylvania · Doylestown · map
- Type
- Accident
- Injuries
- 1 person was seriously injured; 1 other was unhurt.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 150L · all 150Ls on the register
- Registration
- N10659 · registry record · serial 15074953
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PLT RPRTD THAT DRG TAKEOFF, THE ACFT REACHED AN ALTITUDE OF ABOUT 50 TO 75 FT, WHEN HE NOTICED THE AIRSPEED WAS SLOWLY DROPPING. HE DID NOT BELIEVE THE ACFT WOULD CLEAR TREES BEYOND THE END OF THE RWY, SO HE ELECTED TO ABORT THE TAKEOFF. SUBSEQUENTLY, THE ACFT TOUCHED DOWN, NOSEWHEEL FIRST, BETWEEN THE END OF THE RWY & THE TREES, THEN IT NOSED OVER. RPRTDLY, THE FLAPS WERE IN A FULL DOWN POSITION.
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: 70 hours in all; 2 in this make and model; 12 in the last 90 days; 4 in the last 30 days; 25 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Last inspection: 100-hour inspection; 36 hours since
- Maximum gross weight: 1,600 lb
- Seats: 2
- Landing gear: fixed
- Engine: Continental O-200-A (piston); 0 hours total
- Operator: Gull Aviation,Inc.
The flight
- Departed from: N88 Doylestown PA at 3:45 pm
- Destination: N63 Sussex NJ
- Flight plan: VFR
- Runway 5, 3,004 ft by 50 ft
Weather at the time
- Light: daylight
- Wind: from 050° at 8 knots
- Visibility: 20 statute miles
- Sky: scat at 10,000 ft
- Temperature: 81°F (27°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 |
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.