- Date
- June 8, 1983, 14:18 local (20:18 UTC)
- Place
- Molina, CO
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N732ZQCessna TU206G
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19830608023629A
- Case key
- 16089
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The pilot had leveled off at 17500 ft MSL when the engine made a detonating sound and lost power. Manifold pressure went to about 12 inches. Fuel pressure was normal but the cylinder head temperature fell rapidly. At 9000 ft MSL the engine surged to about 16 inches of manifold pressure. When the pilot leaned the mixture the engine vibrated severely so the pilot secured the engine. Post accident investigation revealed that the rubber hose from the turbocharger compressor duct to the throttle body duct had separated.
Aircraft
- Registration
- N732ZQ
- Reported as
- Cessna TU206G
- Category
- Airplane
- Serial number
- U20604747
- Airframe hours
- 932
- Engine
- Continental TSIO-520-M, 285 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Business · Part 91
- Operator
- Monarch Aviation
- Registered owner
- Gordon Engineering Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · March 15, 1983 · 5 hours before
- Departed
- GJT · Grand Junction, CO
- Destination
- DEN · Denver, CO
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 37
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 1,263 total · 72 in this make and model · 1,171 as pilot in command · 9 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 350° at 11 knots
- Visibility
- 50 statute miles
- Lowest ceiling
- 25,000 ft overcast
- Temperature
- 82 °F, dew point 45 °F
- Altimeter
- 29.00 inHg
- Observed at
- GJT, 22 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.