- Date
- June 19, 1985, 20:15 local (Jun 20, 1985, 01:15 UTC)
- Place
- Roseau, MN
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N9070KStinson 108-1
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19850619031419A
- Case key
- 13115
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 plt intentionally ground looped the acft during a forced landing to avoid obstacles following a loss of power en route. Aprx 1 1/2 hrs into the flt the plt noticed an engine roughness followed by an increase in oil temp which returned to normal shortly thereafter. About 1 hr later, a 25 RPM decrease and engine roughness was experienced. A continued decrease in RPM was experienced throughout the next 1/2 hr and the plt leaned the mixture and turned the carb heat on and off in an attempt to regain power. A total loss of power was then experienced and the forced landing was initiated. An icing probability chart indicates the existing temp (70 degs f) and the dew point (55 degs f) where conducive to carb ice. No mechanical failure/malfunction was found.
Aircraft
- Registration
- N9070K
- Reported as
- Stinson 108-1
- Category
- Airplane
- Serial number
- 2070
- Airframe hours
- 2,704
- Engine
- Franklin 150, 150 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Ronald C. Mosman
- Airworthiness certificate
- Standard, Normal
- Departed
- ANE · Blaine, MN
- Destination
- ROX · Roseau, MN
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.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 52
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 1,574 total · 1,458 in this make and model · 1,525 as pilot in command · 25 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 70 °F, dew point 55 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.