# N34814: 1941 Porterfield CP-65 - Status: Valid registration - Airframe: [Porterfield CP-65](https://openairdocs.org/model/porterfield-cp-65) (registry code 6480118, 2 seats) - Engine: [Leblond 70 series](https://openairdocs.org/engine/leblond-70-series) (registry code 39101) - Data sheets: [TCDS A-720](https://openairdocs.org/tcds/A-720) (Bradley Rankin), [TCDS TC 200](https://openairdocs.org/tcds/TC%20200) (Sky Motors) (OpenAirDocs) - Serial number: 916 - Year built: 1941 - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Standard - Airworthiness date: January 4, 1954 - Certificate issued: January 5, 2024 - Expires: January 31, 2031 - Mode S code: A3DD9E - Registered owners: [Schiermeister Lloyd G](https://openairdocs.org/faa-owner/SCHIERMEISTER%20LLOYD%20G), [Schiermeister Larry L](https://openairdocs.org/faa-owner/SCHIERMEISTER%20LARRY%20L) - Location: [La Center, WA](https://openairdocs.org/faa-place/WA/La%20Center) - Owner type: Co-owned - Owner's area on the map: 45.8749° N, 122.6208° W: Placed by OpenAirDocs at the center of ZIP code 98629, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=34814 - Page: https://openairdocs.org/aircraft/N34814 From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Leblond 70 model are included. ## ADs that may apply (OpenAirDocs): 1 in force ### Matched by airframe (Porterfield CP-65) - [AD 44-04-03](https://openairdocs.org/ad/44-04-03): Wings · Rankin, Joe CP-65 ### Matched by engine (Leblond 70 series) None in force. ## Information bulletins (advisory) (1 in force) - [SAIB NE-02-21](https://openairdocs.org/saib/NE-02-21): . Issued Mar 15, 2002 ## NTSB investigations None matched to N34814. ## FAA accident and incident reports None matched to N34814. ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## STCs that may be installed (OpenAirDocs) (23) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the airframe (Porterfield CP-65) - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA00079NY](https://openairdocs.org/stc/SA00079NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation - [STC SA00081NY](https://openairdocs.org/stc/SA00081NY): Installation of Iceman Aviation Supplies, Inc. Carburetor Ice Detector. Alcor LLC - [STC SA7965SW](https://openairdocs.org/stc/SA7965SW): Application of fabric and polyurethane finishing system. Shady Aviation LLC - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc - [STC SA01734SE](https://openairdocs.org/stc/SA01734SE): Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts. Andrew D. Humphrey - [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric. Aviation Products Systems Inc - [STC SA593CH](https://openairdocs.org/stc/SA593CH): Install Champion SlickSTART magneto booster system. Champion Aerospace LLC - [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC - [STC SA01944CH](https://openairdocs.org/stc/SA01944CH): Modify airplane to fly on unleaded automotive gasoline, 87 minimum antiknock index, per ASTM Specification D-439 or D-4818 of any volatility class, A through E, or 82UL AVGAS per ASTM D-6227. Experimental Aircraft Association Inc - [STC SA848GL](https://openairdocs.org/stc/SA848GL): Superseded by STC SA01944CH. Modify airplane to fly unleaded automotive gasoline, 87 minimum antiknock index, STC SE634GL approved. EAA Aviation Foundation - [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc - [STC SA1008WE](https://openairdocs.org/stc/SA1008WE): Installation of Poly-Fiber covering material. Poly-Fiber Inc - [STC SA489EA](https://openairdocs.org/stc/SA489EA): Installation of ARP Inc. carburetor ice detection system. Aircraft & Rotorcraft Products (ARP) Inc - [STC SA1264GL](https://openairdocs.org/stc/SA1264GL): Surrendered and incorporated into STC SA00478CH. Cooper Aviation Supply Company, Inc - [STC SA02520AT](https://openairdocs.org/stc/SA02520AT): Installation of M-20 Oil Separator, model 600-WP. M-20 Oil Separators LLC - [STC SA5159NM](https://openairdocs.org/stc/SA5159NM): Installation of chip detector system. Northwest Aircraft Inc - [STC SA5755NM](https://openairdocs.org/stc/SA5755NM): Installation of a propeller anti theft device. Davis Ray G - [STC SA4-302](https://openairdocs.org/stc/SA4-302): Installation of BN-1 propeller spinner. ACS Products Co, Inc - [STC SA308EA](https://openairdocs.org/stc/SA308EA): Installation of carburetor ice detection system 105AP in single and twin engine aircraft and single engine helicopters powered by Continental, Franklin, and Lycoming type engines equipped with Marvel-Schebler MA-2, MA-3, MA-4, MA-4-5, MA-6 and HA-6 series carburetors. (Normal,Utility and Acrobatic Category airplanes and helicopters equipped with engines and carburetors as described.). Alfred R Puccinelli ### Approved for the engine (Leblond 70 series) - [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC ## Related - Other Porterfield CP-65 aircraft: https://openairdocs.org/model/porterfield-cp-65/aircraft.md - The Leblond 70 series engine: https://openairdocs.org/engine/leblond-70-series.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.