Cessna 150M accident near Haskell, Oklahoma, August 23, 1991
On August 23, 1991 at about 4:55 pm local time, a Cessna 150M, registered N704CP, was substantially damaged in an accident near Haskell, Oklahoma. It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
IMPROPER INSTALLATION OF AVIONICS EQUIPMENT RESULTING IN INTERFERENCE WITH FLIGHT CONTROL.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 23, 1991 · about 4:55 pm local time
- Place
- Haskell, Oklahoma · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 150M · all 150Ms on the register
- Registration
- N704CP · registry record · serial 15078508
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
WHILE CRUSING AT 500 FEET AGL THE PILOT FELT A SLIGHT CHANGE IN PITCH DOWNWARDS TOWARD POWER LINES. HE MADE CONTACT WITH THE TOP GUY WIRE BETWEEN TWO HIGH TENSION POWER LINES. THE PILOT STATED HE FELT A BINDING IN THE ELEVATOR CONTROLS WHICH RESTRICTED ELEVATOR MOVEMENT MAKING IT IMPOSSIBLE TO CLEAR THE POWER LINES. ON-SITE INVESTIGATION REVEALED THE AVIONICS EQUIPMENT RACK ON THE INSTRUMENT PANEL HAD PARTIALLY COLLAPSED, RESTRICTING THE MOVEMENT OF THE ELEVATOR. THE AVIONICS EQUIPMENT RACK WAS FOUND TO BE IMPROPERLY INSTALLED. AFTER IMPACTING THE GUY WIRE (115 AGL), THE AIRPLANE TUMBLED END OVER END, CONTACTING FOUR OF THE SEVEN HIGH TENSION WIRES BEFORE IMPACTING 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: commercial pilot
- Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instrument: airplane
- Flight time: 2,560 hours in all; 1,500 in this make and model; 9 in the last 90 days; 3 in the last 30 days; 2,100 as pilot in command; 500 on instruments
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: unk
The aircraft
- Last inspection: inspection type not recorded; 0 hours since
- Maximum gross weight: 1,600 lb
- Seats: 2
- Landing gear: fixed
- Engine: Continental O-200-A (piston); 0 hours total
- Not recorded
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 180° at 4 knots
- Visibility: 10 statute miles
- Sky: scat at 4,000 ft
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number FTW91LA153.