- Date
- February 3, 1979
- Place
- Boulder, CO · BOULDER, CO
- Injuries
- 2 fatal
- Damage
- Destroyed
- Phase of flight
- Enroute
- Aircraft
- N9490MCessna T210
- Status
- Completed · report August 9, 1979
- Report
- Brief approved by the director
- FAA report
- 19790203019919A
- Case key
- 136325
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-2184 79/2/3 NR.BOULDER,CO CESSNA T210 CR- 1 0 0 NONCOMMERCIAL PRIVATE, AGE 31, 1000 TIME - 0933 N9490M PX- 1 0 0 PLEASURE/PERSONAL TRANSP TOTAL HOURS, 20 IN TYPE, DAMAGE-DESTROYED OT- 0 0 0 NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION LAST ENROUTE STOP DENVER,CO GRAND JUNCTION,CO CRAIG,CO TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION IN FLIGHT: CLIMB TO CRUISE COLLISION WITH GROUND/WATER: CONTROLLED LANDING: LEVEL OFF/TOUCHDOWN PROBABLE CAUSE(S) PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (OWNER PERSONNEL) POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES MISCELLANEOUS ACTS,CONDITIONS - IMPROPER GRADE OIL-LUBRICATING SYSTEM MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN FACTOR(S) PILOT IN COMMAND - IMPROPER STARTING PROCEDURES TERRAIN - ROUGH/UNEVEN TERRAIN - SNOW-COVERED COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- #2 EXHAUST VALVE BROKE.115HRS SINCE OIL CHANGE. 50WT OIL,SUB-ZERO TEMP.NO ENGINE PREHEAT.
Aircraft
- Registration
- N9490M
- Reported as
- Cessna T210
- Category
- Airplane
- Engine
- reciprocating
- Damage
- Destroyed
N9490MRegistration cancelled Oct 31, 2013 · Cessna T210KAirframe modelCessna T210KEngine modelContinental TSIO-520 series
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.