# N541EM: 2000 Klaas Development LANCAIR IV-P, registration cancelled 2018-01-05

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 5, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Klaas Development LANCAIR IV-P](https://openairdocs.org/model/klaas-development-lancair-iv-p) (registry code 05607KF)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: LIV-398
- Year built: 2000
- Type of aircraft: Fixed wing single engine
- Kit: Lancair Intl Inc LANCAIR IV P
- Airworthiness: Experimental, amateur built
- Airworthiness date: March 13, 2000
- Certificate issued: July 2, 2007
- Last registry action: November 14, 2011
- Mode S code: A6DC13
- Owner when cancelled: [Empire Equipment LLC](https://openairdocs.org/faa-owner/EMPIRE%20EQUIPMENT%20LLC)
- Location: [Knoxville, TN](https://openairdocs.org/faa-place/TN/Knoxville)
- Owner type: Corporation
- Owner's area on the map: 35.9785° N, 84.0022° W: Placed by OpenAirDocs at the center of ZIP code 37921, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N541EM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=541EM
- Page: https://openairdocs.org/deregistered/N541EM-2018-01-05

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Klaas Development LANCAIR IV-P: https://openairdocs.org/model/klaas-development-lancair-iv-p.md

## NTSB investigations (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…

## FAA accident and incident reports (2)

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.

- [Accident 20140903023579A](https://openairdocs.org/incident/20140903023579A), Sep 3, 2014: Klaas Development Inc LANCAIR IV-P (N541EM), Ooltewah, TN, Destroyed, 1 fatal. 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…
- [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…

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