# Accident 20140903023579A: Klaas Development Inc LANCAIR IV-P, Ooltewah, TN, September 3, 2014

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 3, 2014, 15:22 local time
- Place: Ooltewah, TN
- Airport: Collegedale Municipal
- Damage: Destroyed
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 35.0778° N, 85.0553° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=35.0778&lon=-85.0553&mi=10
- Aircraft: N541EM, a cancelled registration (https://openairdocs.org/deregistered/N541EM-2018-01-05) (OpenAirDocs)
- Registry model: Klaas Development LANCAIR IV-P (registry code 05607KF, https://openairdocs.org/model/klaas-development-lancair-iv-p) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: KLAAS DEVELOPMENT INC LANCAIR IV-P
- Reported engine: CONT MOTOR TSIO-550-E
- People aboard: 1
- Fatal injuries: 1
- Other injuries: 0
- NTSB investigation: [NTSB ERA14FA421](https://openairdocs.org/ntsb/ERA14FA421) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20140903023579A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

SHORTLY AFTER REACHING CRUISE ALTITUDE THE PILOT REPORTED THAT HE WAS "HAVING TROUBLE HOLDING ALTITUDE," HE THEN 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."  AT THAT TIME, RADAR DATA INDICATED THAT THE AIRCRAFT WAS APPROXIMATELY 7 MILES NORTH OF FGU AT 6,000 FEET MSL. THE PILOT THEN REPORTED "OIL ALL OVER THE WINDSHIELD" AND THAT HE "COULD NOT SEE A THING." SUBSEQUENTLY THE PILOT REPORTED "I CANNOT SEE IT. I CANNOT MAKE IT. I AM JUST LOOKING FOR ANYTHING AT THIS POINT" AND THAT A FORCED LANDING WAS IMMINENT."

THE AIRFRAME EXHIBITED IMPACT AND CRUSH DAMAGE AND THE EMPENNAGE, AFT OF THE MOST AFT BULKHEAD, WAS SEPARATED, BUT REMAINED IN THE IMMEDIATE VICINITY OF THE MAIN WRECKAGE. BOTH WINGS EXHIBITED IMPACT DAMAGE. THE PROPELLER WAS NOT LOCATED AT THE SCENE.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA14FA421](https://openairdocs.org/ntsb/ERA14FA421), Sep 3, 2014: Klaas Development Lancair IV P (N541EM), Ooltewah, TN, substantial damage, 1 fatal. 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…

## Other reports on N541EM (1)

Matched to the same aircraft by N-number and date.

- [Incident 20100319029689I](https://openairdocs.org/incident/20100319029689I), Mar 19, 2010: Klaas Devel LANCAIR IV- (N541EM), Carrolton, GA, Minor damage. According to statement from pilot, while enroute from tys direct to dts at approx. 16000 ft cabin door window failed and departed aircraft. Pilot declared…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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