Champion 7EC accident near Riverside, California, March 7, 1993
On March 7, 1993 at about 10:05 pm local time, a Champion 7EC, registered N9099B, was substantially damaged in an accident near Riverside, California (Riverside Municipal airport). It was an instructional flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
THE CFI'S INADEQUATE SUPERVISION OF THE FLIGHT, THE DUAL STUDENT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL AND IMPROPER USE OF THE NORMAL BRAKES. CONTRIBUTING TO THIS ACCIDENT WAS THE DUAL STUDENT'S IMPROPER USE OF THE RUDDER.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- March 7, 1993 · about 10:05 pm local time
- Place
- Riverside, California · Riverside Municipal · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Champion 7EC · all 7ECs on the register
- Registration
- N9099B · registry record · serial 7EC-648
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE CERTIFICATED AIRLINE TRANSPORT PILOT/FLIGHT INSTRUCTOR DUAL STUDENT WAS RECEIVING A CHECK OUT IN THE CONVENTIONAL GEAR EQUIPPED AIRPLANE. ON TOUCHDOWN THE AIRPLANE SWERVED TO THE LEFT. THE DUAL STUDENT OVER-CORRECTED THE LEFT EXCURSION AND THEN OVER-CORRECTED THE RESULTING RIGHT EXCURSION AND APPLIED HARD BRAKING. THE AIRPLANE NOSED OVER ONTO ITS BACK.
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: flight instructor, commercial pilot
- Ratings: multi-engine land; single-engine land; single-engine sea; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
- Flight time: 13,772 hours in all; 260 in this make and model; 124 in the last 90 days; 40 in the last 30 days; 13,414 as pilot in command; 12,004 on instruments
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: rear
The aircraft
- Airframe total time: 3,754 hours
- Last inspection: annual inspection, January 5, 1993; 13 hours since
- Maximum gross weight: 1,450 lb
- Seats: 2
- Landing gear: fixed
- Engine: Continental O-200-A (piston); 0 hours total
The flight
- Departed from: CNO Chino CA at 10:30 pm
- Flight plan: none
- Runway 27, 5,400 ft by 100 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 270° at 4 knots
- Visibility: 20 statute miles
- Sky: clear
- Temperature: 64°F (18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 2 |
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.