ATL04CA197

NTSB accident investigation · Cessna 150M · Sevierville, TN · September 30, 2004

Accident · No injuriesData collectionFinal report
Date
September 30, 2004, 07:10 local (11:10 UTC)
Place
Sevierville, TN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N45667Cessna 150M
Weather
Visual (VMC) · Dawn
Status
Completed · report December 28, 2004
Report
Approved by Office Director
Parties
Nashville FSDO
FAA report
20040930029799A
Case key
60358

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to maintain directional control during an attempted takeoff, which resulted in the on ground collision with high vegetation and a subsequent nose over. Factors were a foggy windshield and windshield defrost not activated.

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.

Loss of control - on ground/waterTakeoff - roll/run
Directional control - not maintainedPilot in commandCause
Window,flight compartment window/windshield - dirty(foggy)Factor
Cabin heater - not activated
On ground/water encounter with terrain/waterTakeoff - aborted
Terrain condition - high vegetation
Nose overOther

Analysis

The pilot stated at on take-off roll and at fifty knots, the windshield and side glass fogged up to the point of zero visibility. He stated that he sensed that the aircraft was drifting to the left, at which point he unsuccessfully attempted to correct the path to the right. He stated that he retarded the throttle and began to shut down the plane. The airplane's left wing collided with tall brush and bushes, nosed over in soft mud, and came to rest inverted. Post-accident examination of the accident scene revealed tire marks beginning at the approach end of runway 7, veering left off the runway for approximately 975 feet into brush and soft mud. Other marks were observed in the soft mud leading up to the inverted airplane. One blade of the propeller was buried in the mud. Examination of the airplane revealed the left outboard half of the wing was crushed aft and the right wingtip was separated. The vertical stabilizer was displaced to the right. The nearest weather reporting facility, McGhee-Tyson Airport, Knoxville, Tennessee, 10 nautical miles southwest of Seymour Airpark, Sevierville, Tennessee, at 0653, reported winds as 050 degrees at four knots, visibility of four statute miles in mist, and temperature-dew point of 12 degrees Celsius. Examination of the pilot logbooks revealed that an endorsement for repeated solo flights less than 25 nautical miles was not entered by a certified flight instructor. There were no logbook entry remarks of flight training to or from Seymour Airpark, or take-offs or landing made at Seymour Airpark entered or signed of by a certified flight instructor.

Factual narrative

On September 30, 2004, at 0710 eastern daylight time, N45667, a Cessna 150M, registered to and operated by a student pilot, veered off the runway and collided with tall brush while attempting a take-off roll on runway 7 at Seymour Airpark, Sevierville, Tennessee. The solo instructional flight was conducted under Title 14 CFR Part 91 and visual flight rules. Visual metrological conditions prevailed at the time of the accident and no flight plan was filed. The student pilot was not injured and the airplane sustained substantial damage. The flight originated from Seymour Airpark, Sevierville, Tennessee, on September 30, 2004, at 0709.

According to the student pilot, the purpose of the flight was to complete a solo flight to Sky Ranch Airport, Knoxville, Tennessee, where the pilot and airplane were based. He stated that he contacted Sky Ranch airport to obtain the weather conditions, and the visibility there was 3 miles. He stated that he preflighted the airplane "according to standard procedures cleaned the windshield and side glasses of moisture." He stated that he performed a run-up, aligned the airplane on the centerline of runway 7, and initiated take-off roll. He stated at "fifty knots, the windshield and side glass fogged up to the point of zero visibility." He stated that "he sensed that the aircraft was drifting to the left," at which point he "unsuccessfully attempted to correct the path to the right." He stated that he retarded the throttle and began to "shut down the plane." The airplane's left wing collided with tall brush and bushes, nosed over in soft mud, and came to rest inverted.

Post-accident examination of the accident scene revealed tire marks beginning at the approach end of runway 7, veering left off the runway for approximately 975 feet into brush and soft mud. Other marks were observed in the soft mud leading up to the inverted airplane. One blade of the propeller was buried in the mud. Examination of the airplane wreckage revealed the left outboard half of the wing was crushed aft and the right wingtip was separated. The vertical stabilizer was displaced to the right.

The nearest weather reporting facility, McGhee-Tyson Airport, Knoxville, Tennessee, 10 nautical miles southwest of Seymour Airpark, Sevierville, Tennessee, at 0653, reported winds as 050 degrees at four knots, visibility of four statute miles in mist, and temperature-dew point of 12 degrees Celsius.

Examination of the pilot logbooks revealed that an endorsement for repeated solo flights less than 25 nautical miles was not entered by a certified flight instructor.

The Owner's Manual for the Cessna 150 states that the airplane is equipped with a cabin heat and ventilation system. Windshield defrost air is also suppiled by this system. The student pilot did not report using the defrost system.

Aircraft

Registration
N45667
Reported as
Cessna 150M
Category
Airplane
Serial number
15077014
Airframe hours
5,146
Engine
Continental O-200, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Larry Winters
Airworthiness certificate
Standard, Utility
Last inspection
Annual · September 5, 2004 · 15 hours before
Departed
TN20 · Sevierville, TN
Destination
TN98 · Knoxville, TN
Airport
TN20 · Seymour AirPark, runway 7, 2,300 × 100 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
61
Injuries
None
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
129 total · 118 in this make and model

Weather

Conditions
Visual (VMC) · Dawn
Wind
50° at 3 knots
Visibility
4 statute miles
Lowest ceiling
None
Temperature
54 °F, dew point 54 °F
Altimeter
30.03 inHg
Observed at
KTYS, 10 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.