Cessna 170B accident near Concord, California, June 10, 1990
On June 10, 1990 at about 10:29 pm local time, a Cessna 170B, registered N2672D, was substantially damaged in an accident near Concord, California (Concord airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
THE PILOT FAILED MAINTAIN DIRECTIONAL CONTROL BY HIS FAILURE TO COMPENSATE FOR THE EXISTING WIND CONDITIONS.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 10, 1990 · about 10:29 pm local time
- Place
- Concord, California · Concord · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 170B · all 170Bs on the register
- Registration
- N2672D · registry record · serial 20824
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE CERTIFICATED COMMERCIAL PILOT/FLIGHT INSTRUCTOR NOTED THAT A CROSSWIND EXISTED AT THE AIRPORT. THE AIRPLANE TOUCHED DOWN NORMALLY, BUT DURING THE LANDING ROLL-OUT THE PILOT FAILED TO MAINTAIN DIRECTIONAL CONTROL BY FAILING TO PROPERLY COMPENSATE FOR THE EXISTING WIND CONDITIONS. THE LEFT MAIN GEAR COLLAPSED DURING THE SUBSEQUENT GROUND LOOP.
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
What happened, in order
- LOSS OF CONTROL - ON GROUND/WATER during landing - roll
- MAIN GEAR COLLAPSED during landing - roll
Pilot
- Ratings: multi-engine land, single-engine land, ASE, APLN, none
- Flight time: 644 hours in all; 17 in this make and model; 16 in the last 90 days; 16 in the last 30 days; 530 as pilot in command
- Medical certificate: class 1
The aircraft
- Last inspection: inspection type not recorded; 0 hours since
- Maximum gross weight: 2,200 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming O-360-A1A (piston); 0 hours total
- Operating certificate: in the vicinity
The flight
- Departed from: SQL San Carlos CA at 10:00 pm
- Flight plan: none
- Runway 19L, 2,768 ft by 75 ft
Weather at the time
- Light: daylight
- Wind: from 240° at 13 knots, gusting 17
- Visibility: 30 statute miles
- Sky: clear
- Temperature: 0°C, dew point 0°C
- Altimeter: 29 inHg
- Observation at 10:29 pm from CCR
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 LAX90LA217.