Lanier THORP T-18 N18FL
24 November 1989 · Colorado City, Colorado, United States · Fatal
Summary
On 24 November 1989 at about 14:54 local time, a Lanier THORP T-18 registered N18FL was involved in an accident near Colorado City, Colorado, United States. One person was on board and one died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 14:54
- Classification
- Accident
- Location
- Colorado City, Colorado, United States
- Nearest airport
- Greenhorn Valley (CO22)
- Coordinates
- 37.9404, -104.8410
- Aircraft
- Lanier THORP T-18
- Registration
- N18FL
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- DEN90DTE01
People
1 person died.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 1 | 0 | 0 | 0 |
Probable cause
LOSS OF ENGINE POWER WITH CARBON FOULING OF THE SPARK PLUGS, AND FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
A WITNESS SAW THE PLT PREFLIGHT THE ACFT. AFTER HE TOOK OFF, THE ACFT ENTERED A STEEP DESCENT & CRASHED A SHORT DISTANCE FROM THE END OF THE RWY. AN EXAM OF THE ENG REVEALED THAT ALL SPARK PLUGS WERE CARBON FOULED. THE HOME BUILT ACFT HAD A TOTAL OF 40 HRS FLT TIME. THE ENG HAD A TOTAL TIME OF 42 HRS TSMO. THE OWNER/PLT HAD CHANGED THE CARBURETOR & SPARK PLUGS AFTER THE ACFT HAD FLOWN 6 HRS & THE ACFT HAD FLOWN 13 HRS SINCE THE LAST INSPN. NO PREIMPACT PART FAILURE WAS FOUND.
Quoted verbatim from the NTSB record.
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 4 Jan 1989 | Cessna 172 | Longmont, Colorado, United States | Denver Air Center | No injuries | - |
| 6 Jan 1989 | Piper PA-31T | Craig, Colorado, United States | Cummins Power Inc | No injuries | - |
| 18 Jan 1989 | Beechcraft V35B | Broomfield, Colorado, United States | - | Minor injuries | - |
| 28 Jan 1989 | Cessna P210N | Durango, Colorado, United States | - | No injuries | - |
| 8 Feb 1989 | Piper PA-18-150 | Boulder, Colorado, United States | Boulder Flying Service | No injuries | - |
| 9 Feb 1989 | Cessna 152 | Gill, Colorado, United States | - | No injuries | - |