- Date
- April 28, 2007, 18:00 local (23:00 UTC)
- Place
- Centerville, TX
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N674FFlagg Kitfox IV
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 27, 2007
- Report
- Approved by Office Director
- Parties
- Houston, Texas
- Case key
- 65656
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
The loss of engine power due to the failure of the air induction ducting. A contributing factor was the lack of suitable terrain for the forced landing.
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 80-horsepower engine on the single-engine experimental airplane lost power during the initial takeoff climb from runway 06. The 133-hour private pilot added that the engine began sputtering and running rough during the initial climb. The pilot added that he tried to pull the choke and alter the throttle settings in an attempt to regain engine power, to no avail. The pilot initiated a forced landing to a nearby clearing; however, the pilot did not have sufficient altitude and the airplane landed in trees. The airplane came to rest suspended in trees in a near vertical nose low attitude. The pilot was able to exit the airplane without injuries. Post-accident inspection of the engine revealed that the carburetor rubber flange coupler had failed, which resulted in the reported loss of engine power. The pilot added that the coupler (part number 267788) needs to have Kevlar material added in the injection mold process to prevent similar mishaps. The airplane sustained structural damage to both wings. The longeron and horizontal stabilizer were both bent. The airplane and engine were reported to have accumulated a total of 275-hours since new. The weather at the nearest weather reporting station located approximately 29 miles to the north north-east of the accident site reported calm winds, clear skies, and 20-statute mile visibility.
Factual narrative
The 80-horsepower engine on the single-engine experimental airplane lost power during the initial takeoff climb from runway 06. The 133-hour private pilot added that the engine began sputtering and running rough during the initial climb. The pilot added that he tried to pull the choke and alter the throttle settings in an attempt to regain engine power, to no avail. The pilot initiated a forced landing to a nearby clearing; however, the pilot did not have sufficient altitude and the airplane landed in trees. The airplane came to rest suspended in trees in a near vertical nose low attitude. The pilot was able to exit the airplane without injuries. Post-accident inspection of the engine revealed that the carburetor rubber flange coupler had failed, which resulted in the reported loss of engine power. The pilot added that the coupler (part number 267788) needs to have Kevlar material added in the injection mold process to prevent similar mishaps. The airplane sustained structural damage to both wings. The longeron and horizontal stabilizer were both bent. The airplane and engine were reported to have accumulated a total of 275-hours since new. The weather at the nearest weather reporting station located approximately 29 miles to the north north-east of the accident site reported calm winds, clear skies, and 20-statute mile visibility.
Aircraft
- Registration
- N674F
- Reported as
- Flagg Kitfox IV
- Category
- Airplane, amateur-built
- Serial number
- 1674
- Airframe hours
- 275
- Engine
- Rotax 912ul, 80 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Marwynne Kuhn
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · July 1, 2006
- Departed
- TE01 · Centerville, TX
- Destination
- 0TE4
- Airport
- TE01 · Dillard Ranch Airport, runway 06, 3,100 × 90 ft, grass/turf
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
- 59
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Seat
- Left
- Flight hours
- 133 total · 3 in this make and model · 106 as pilot in command · 7 in the last 90 days · 7 in the last 30 days · 0 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 20 statute miles
- Lowest ceiling
- None
- Temperature
- 61 °F
- Observed at
- KPSN, 29 nm away