Cessna 210 accident near Riverside, California, October 6, 1991
On October 6, 1991, a Cessna 210, registered N9517T, was substantially damaged in an accident near Riverside, California (Riverside airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was instrument conditions (cloud, fog or low visibility).
The NTSB's probable cause their words, unchanged
THE FAILURE OF A HYDRAULIC GEAR RETURN LINE, WHICH CAUSED THE AIRCRAFT'S MAIN LANDING GEAR TO COLLAPSE DURING LANDING TOUCHDOWN.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- October 6, 1991
- Place
- Riverside, California · Riverside · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- instrument conditions (cloud, fog or low visibility)
- Aircraft
- Cessna 210 · all 210s on the register
- Registration
- N9517T · registry record · serial 57317
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
SHORTLY AFTER TAKEOFF AFTER ATTEMPTING TO RETRACT THE LANDING GEAR, THE PILOT NOTED AN UNSAFE GEAR INDICATION. THE PILOT ESTABLISHED COMMUNICATIONS WITH CONTROL TOWER PERSONNEL AT A LARGER, NEARBY AIRPORT. HE REPORTED THE PROBLEM TO TOWER PERSONNEL AND REQUESTED LANDING INSTRUCTIONS. THE PILOT WAS CLEARED TO LAND. UPON TOUCHDOWN, THE MAIN LANDING GEAR COLLAPSED CAUSING THE AIRCRAFT TO COLLIDE WITH THE RUNWAY. POST-ACCIDENT EXAMINATION REVEALED THAT A HYDRAULIC GEAR RETURN LINE, CESSNA AIRCRAFT PART NUMBER 1280106-5, HAD RUPTURED. THE LINE WAS NOTED AS BEING 'BRITTLE.' LOG BOOK ENTRIES INDICATE THE LINE WAS INSTALLED ON THE AIRCRAFT ON JULY 19, 1991.
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: multi-engine land; single-engine land
- Flight time: 5,000 hours in all; 12 in this make and model
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: unk
The aircraft
- Airframe total time: 2,594 hours
- Last inspection: annual inspection, September 1, 1990; 35 hours since
- Maximum gross weight: 2,900 lb
- Seats: 4
- Landing gear: retractable
- Engine: Continental IO-470-E (piston); 0 hours total
The flight
- Departed from: RIR Riverside CA
- Flight plan: none
- Runway 27, 5,400 ft by 100 ft
Weather at the time
- Light: daylight
- Wind: from 280° at 13 knots
- Visibility: 2 statute miles
- Temperature: 90°F (32°C), dew point 0°F (-18°C)
- Altimeter: 29.00 inHg
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.
Other NTSB records under N9517T the same tail number, which may have belonged to a different aircraft at the time
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.