- Date
- March 22, 1989, 18:30 local (Mar 23, 1989, 00:30 UTC)
- Place
- Catoosa, OK
- Injuries
- 2 minor
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N1790EAeronca 7AC
- Weather
- Visual (VMC) · Dusk
- Status
- Completed · report January 22, 1991
- Report
- Approved by Office Director
- FAA report
- 19890322004329A
- Case key
- 22848
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
Carburetor ice and improper use of carburetor heat. Factors related to the occurrence were: carburetor icing conditions and rough/uneven terrain.
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
According to the pilot, the airplane was in level flight when the engine stopped producing power. He was unable to restore power and had to land on rough terrain. He said he believed the loss of power was due to carburetor ice. The temperature & dew point were 50 & 25 deg, respectively. According to carburetor icing charts, conditions were conducive to carburetor icing at glide & cruise power.
Aircraft
- Registration
- N1790E
- Reported as
- Aeronca 7AC
- Category
- Airplane
- Serial number
- 7AC-5357
- Engine
- Continental A-65, 65 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Sitler, Larry R.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · April 1, 1988 · 70 hours before
- Departed
- 1HG · Tulsa, OK
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
- 46
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Seat
- Front
- Flight hours
- 1,100 total · 400 in this make and model · 30 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Dusk
- Wind
- 130° at 9 knots
- Visibility
- 15 statute miles
- Lowest ceiling
- None
- Temperature
- 50 °F, dew point 25 °F
- Altimeter
- 30.00 inHg
- Observed at
- TUL, 15 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.
Other investigations on N1790E · 1
Matched to the same aircraft by N-number and date.