Klaas Development Inc LANCAIR IV P accident near Ooltewah, TN
On September 3, 2014, a Klaas Development Inc LANCAIR IV P (airplane) was involved in an accident near Ooltewah, TN. 1 person died. Damage to the aircraft: substantial.
- Date
- September 3, 2014
- Place
- Ooltewah, TN
- Aircraft
- Klaas Development Inc LANCAIR IV P · Airplane
- Injuries
- 1 fatal, 0 serious, 0 minor
- Damage
- Substantial
- Position
- 35.078°N, 85.055°W
- NTSB ID
- 20140903X63615
Official records · ERA14FA421
- Public docket: reports, statements and exhibits from the investigation
Air traffic control records
- Transcript of Radio Communications: Transcript (PDF), on ntsb.gov
NTSB summary
HISTORY OF FLIGHT On September 3, 2014, about 1522 eastern daylight time, an experimental amateur-built Lancair IV-P, N541EM, was substantially damaged when it impacted an open field within an industrial park near Ooltewah, Tennessee. The airplane had departed from McGhee-Tysons International Airport (TYS), Knoxville, Tennessee, at 1451. Day visual meteorological conditions prevailed and an instrument flight rules flight plan had been filed for the flight destined for Jackson-Medgar Wiley Evers International Airport (JAN), Jackson, Mississippi. The commercial pilot was fatally injured. The business flight was conducted under the provisions of Title 14 Code of Federal Regulations Part 91. Radar and voice communication data from Federal Aviation Administration (FAA) Air Route Traffic Control Center (ARTCC) revealed that the pilot reported on the Atlanta ARTCC frequency that he was at 11,000 feet and requested to deviate to the right for weather. The airplane subsequently leveled at its filed cruising altitude of 16,000 feet above mean sea level (msl). Shortly after reaching cruise altitude, the pilot reported that he was "having trouble holding altitude," descended to 15,000 feet msl, reported "engine problems," and then reported "instrument problems." The pilot subsequently requested to divert to Chattanooga-Lovell Field (CHA), Chattanooga, Tennessee. At 1513, the pilot reported that the airplane "lost engine power" and the corresponding radar return was approximately 7 miles north of Collegedale Municipal Airport (FGU), Collegedale, Tennessee and indicated an altitude of 6,
Probable cause
The inadequate torque of the propeller mounting bolts and inspection of the propeller, which resulted in the fatigue fracture of the bolts and a subsequent in-flight separation of the propeller assembly.
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Browse: Tennessee
Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
