# Ultimate LANCAIR IV-P

- Type: Aircraft model (FAA registry)
- Registry codes: 05643NZ, 05635M0
- Manufacturer (registry): ULTIMATE AIRCRAFT · ULTIMATE AIRCRAFT LLC
- Model: LANCAIR IV-P
- Aircraft type: Fixed wing single engine
- Category: Airplane
- Engines: 1 · Reciprocating
- Seats: 4
- Weight class: Up to 12,499 lb
- Certification: Not type certificated
- Registered aircraft: 1
- Page: https://openairdocs.org/model/ultimate-lancair-iv-p

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. The FAA lists this model under more than one registry code, usually for different spellings of the maker. This page covers them all.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (1)

- [N49HB](https://openairdocs.org/aircraft/N49HB): [Bartle Henry P Trustee](https://openairdocs.org/faa-owner/BARTLE%20HENRY%20P%20TRUSTEE), [Independence, OR](https://openairdocs.org/faa-place/OR/Independence), S/N 811

## NTSB investigations

None matched to aircraft with this model.

## FAA accident and incident reports

None matched to aircraft with this model.

## Service difficulty reports (3)

As reported by operators and repair stations, by the model named in the report.

- [SDR 2025FA0000532](https://openairdocs.org/sdr/2025FA0000532), Jul 31, 2025: WINDSHIELD. FRACTURED. LANCAIR IV-P, WHILE IN PRESSURIZED CRUISE FLIGHT AT 15,500' MSL AND 245KTS, A LARGE PORTION OF THE WINDSHIELD FRACTURED AND SEPARATED FROM THE AIRCRAFT. AN IMME
- [SDR 2013FA0000412](https://openairdocs.org/sdr/2013FA0000412), Jul 1, 2013: CRANKSHAFT. CRACKED. ENGINE OVERHAULED 105 HOURS AGO, AND CRANK WAS ULTRASOUND TESTED OK. NO INCIDENTS OF ANY KIND HAVE EVER OCCURRED WITH THIS ENGINE OR PROPELLER, SUCH AS PROP STR
- [SDR 2012FA0000352](https://openairdocs.org/sdr/2012FA0000352), Jun 4, 2012: WINDOW. DEPARTED. DURING CRUISE AT 20,000 FT, HEARD A BANG, AND THEN PILOT`S EARS POPPED. DESCENDED TO 11,000 FT. A PHYSICAL REVIEW OF ACFT REVEALED THE LT REAR WINDOW BEHIND ENT

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Pratt Dennis C LANCAIR IV P](https://openairdocs.org/model/pratt-dennis-c-lancair-iv-p): 1 registered aircraft, registry code 05601IZ
- [Coleman Charles LANCAIR IV P](https://openairdocs.org/model/coleman-charles-lancair-iv-p): 1 registered aircraft, registry code 05601L9
- [Raetech Motorsports LANCAIR IV-P](https://openairdocs.org/model/raetech-motorsports-lancair-iv-p): 1 registered aircraft, registry code 056020J
- [Graham Richard A LANCAIR IV-P](https://openairdocs.org/model/graham-richard-a-lancair-iv-p): 1 registered aircraft, registry code 05602CV
- [Euzarraga David H LANCAIR IV P](https://openairdocs.org/model/euzarraga-david-h-lancair-iv-p): 1 registered aircraft, registry code 0560382
- [Yoder Jack LANCAIR IVP](https://openairdocs.org/model/yoder-jack-lancair-ivp): 1 registered aircraft, registry code 056039V
- [Falcon Helicopter LANCAIR IV-P](https://openairdocs.org/model/falcon-helicopter-lancair-iv-p): 1 registered aircraft, registry code 05603LR
- [Zedaker Tom LANCAIR IVP](https://openairdocs.org/model/zedaker-tom-lancair-ivp): 1 registered aircraft, registry code 05603PR
- [Patterson M/Fenoglio J/Nelon C LANCAIR IVP](https://openairdocs.org/model/patterson-m-fenoglio-j-nelon-c-lancair-ivp): 1 registered aircraft, registry code 05603Q7
- [Hill George Melvin LANCAIR IV P](https://openairdocs.org/model/hill-george-melvin-lancair-iv-p): 1 registered aircraft, registry code 0560404
- [Hooker William M LANCAIR IV-P](https://openairdocs.org/model/hooker-william-m-lancair-iv-p): 1 registered aircraft, registry code 056041J
- [Etzler Richard LANCAIR IV P](https://openairdocs.org/model/etzler-richard-lancair-iv-p): 1 registered aircraft, registry code 056044V

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