Cessna 172N N6230D
8 June 1991 · Thermal, California, United States · Minor injuries
Summary
On 8 June 1991 at about 23:55 local time, a Cessna 172N registered N6230D, operated by Consair Flying Club, was involved in an accident near Thermal, California, United States. 4 people were on board and 2 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 23:55
- Classification
- Accident
- Location
- Thermal, California, United States
- Nearest airport
- Thermal (TRM)
- Coordinates
- 33.4793, -116.1007
- Aircraft
- Cessna 172N
- Registration
- N6230D
- Category
- Airplane
- Engines
- 1
- Operator
- Consair Flying Club
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Chiraco Summit → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX91LA255
People
2 people had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 4 | 0 | 0 | 2 | 2 |
Probable cause
THE PARTIAL FAILURE OF THE ENGINE/POWERPLANT FROM A WORN INTAKE VALVE AND THE FAILURE OF COMPANY/OPERATOR MANAGEMENT TO PERFORM AN OVERHAUL ON THE ENGINE WITHIN THE TIME FRAME RECOMMENDED BY THE ENGINE MANUFACTURER.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
A CESSNA 172N NOSED OVER IN SOFT SOIL DURING LANDING ROLL AFTER A FORCED LANDING. THE PILOT INDICATED THAT THE ENGINE WAS RUNNING ROUGH AND LOSING POWER. THE PILOT LANDED THE AIRPLANE ON AN AIRPORT, BUT WAS UNABLE TO MANEUVER THE AIRPLANE TO A RUNWAY. THE AIRPLANE DECELERATED TO ABOUT 20 MPH DURING THE GROUND ROLL ON DIRT. THE AIRPLANE NOSED OVER AFTER THE NOSE GEAR STRUCK A 15 TO 18 INCH HIGH DIRT BANK. THE ENGINE WAS EXAMINED BY AN A&P MECHANIC. THE A&P FOUND THE NUMBER THREE CYLINDER INTAKE VALVE WAS 'TULIPED.' ACCORDING TO THE AIRPLANE'S MAINTENANCE RECORDS, THE ENGINE HAD ACCRUED 2,850 HOURS OF OPERATION WITHOUT OVERHAUL. FORTY FOUR HOURS OF OPERATION BEFORE THE ACCIDENT, THE ENGINE'S CYLINDER COMPRESSION CHECKED 'OK' DURING A LEAK TEST. THE ENGINE MANUFACTURER RECOMMENDED TIME BETWEEN OVERHAULS IS 1,500 HOURS. DURING OVERHAUL THE VALVES ARE REMOVED AND VISUALLY CHECKED FOR WEAR.
Quoted verbatim from the NTSB record.
Other Cessna 172 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 7 Apr 1991 | Cessna 172P | College Park, Maryland, United States | Civil Air Patrol, Inc. | No injuries | - |
| 25 Apr 1991 | Cessna 172 | Detroit, Michigan, United States | Eximous Flying Club, Inc. | No injuries | - |
| 24 Jul 1991 | Cessna 172N | Napa, California, United States | Bridgeford Flying SVC. | No injuries | - |
| 9 Apr 1991 | Cessna 172H | Morehead, Kentucky, United States | Roger Wend | Minor injuries | - |
| 5 Apr 1991 | Cessna 172A | Hood River, Oregon, United States | Paul J. Welp | No injuries | - |
| 31 Mar 1991 | Cessna 172M | Ogden, Utah, United States | Alta Aircraft | No injuries | - |
All 12,209 records for this type
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 20 Jul 1991 | Cessna C-172P | Hesperia, California, United States | South Bay Aviation | No injuries | - |
| 24 Jul 1991 | Beechcraft 76 | Sacramento, California, United States | Altair Aviation Corp. | No injuries | - |
| 27 Jul 1991 | Ayres S2R | Visalia, California, United States | Gilbert Aviation Industries | Serious injuries | - |
| 1 Aug 1991 | Cessna 421C | Auburn, California, United States | Edward Mueller | No injuries | - |
| 2 Aug 1991 | Champion 7GCBC | Lake Elsinore, California, United States | Halbeisen, John F | Fatal | 2 |
| 2 Aug 1991 | Mooney M20E | Riverside, California, United States | Todd Dreyer | Minor injuries | - |