# STC SA1797NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Turboplus Aircraft Systems, Inc., United States - Description: Installation of a Continental TSIO-360-KB and LTSIO-360-KB, or TSIO-360-EB(c) and LTSIO-360-EB(c) (Converted)* engines and associated systems - Applied: December 23, 1982 - Status date: February 24, 2017 - Product: Aircraft, Small Airplane - Certification basis: Part 21, Part 23 - Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO) - Certificate PDF: https://openairdocs.org/files/sha256/38/eb/38eb61bc2c610ff91197df10fbc69e2699e0ab65c990d9de11dccdbc40426f33 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9A9580ADA476905A862580D5005F60F9.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA1797NM ## ADs that name it (0) None. ## Approved models (1) - Piper Aircraft Inc. PA-34-200T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. This Certificate issued to Turboplus Aircraft Systems, Inc. 4117 35th Ave NW Gig Harbor, WA 98335 Part 23* of the Federal Aviation Regulations. A7SO Piper PA-34-200T Description of Type Design Change: Installation of Continental TSIO-360-KB and LTSIO-360-KB engines or TSIO-360-EB(C) and LTSIO-360-EB(C) (converted)* engines and associated systems in accordance with Allied Eagles, LLC / Turboplus Instructions No. TP-7000, dated February 2, 1983, or later FAA approved revisions, and Pilot`s Operating Handbook Supplement No. POHS 1797 dated August 25, 1985 or later FAA approved revisions. The installation may be accomplished concurrently with the installation of an optional induction system intercooler in accordance with Allied Eagles, LLC STC No SA4180NM , including an “IN”, “DIFFERENTIAL”, and ”OUT” air temperature indicator in the cockpit. NOTES: ( 1)* Converted in accordance with Allied Eagles,LLC/Turboplus STC SE1796NM (2) The aircraft models identified above must have pressurized magnetos installed in accordance with Allied Eagles, LLC STC SE4177NM or SE4303NM or equivalent. Limitations and Conditions: The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of that aircraft. The approval of this modification applies to the abovenoted airplane models only. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. (CONTINUED on page 3) Date of application : December 23, 1982 Date of issuance : March 17, 1983 Date reissued : 10/30/1987; 02/24/1992; 10/25/2000; 08/25/2005; 10/15/2007; 4/20/2012; 5/21/12; 2/24/17 Date amended : 12/07/1984; 08/01/1985; 01/14/1986;10/25/2000; 04/12/2012 (Signature) Manager, Technical and Administrative Support Staff, Los Angeles Aircraft Certification Office (Title) Number SA1797NM Limitations and Conditions(continued) The Conditions and Limitations of Type Certificate Data Sheet No. A7SO apply except where superseded by the following: **MODEL PA34-200T (SENECA II) AS MODIFIED BY STC SA1797NM** Engine: 1 Continental TSIO-360-KB 1 Continental LTSIO-360-KB or 1 Continental TSIO-360-EB(C)(converted) 1 Continental LTSIO-360-EB(C) (converted) Fuel: 100/100LL Minimum Grade Aviation Gasoline Engine Limits: Takeoff, 5 minutes, 2800 RPM and 40 in. Hg Manifold Pressure (220 HP) Max Continuous, 2600 RPM and 40 in. Hg Manifold Pressure (200HP) Propeller and Propeller Limits: Hartzell Propeller P/N:(No Change) – See TCDS. A7SO (Page 3-4) Low Pitch Setting at 30 in. Station: 12.6º ± 0.2º Avoid continuous operation between 2000 and 2200 RPM with engine manifold pressure above 32 Hg. Avoid continuous ground operation in cross and tail winds of over 10 knots between 1700 and 2100 RPM. McCauley Propeller P/N:(No Change) – See TCDS. A7SO (Page 4-6) Low Pitch Setting at 30 in. Station: 11.0º ± 0.2º Maximum Weight: 4750 lbs. Takeoff 4342 lbs. Landing 4012 lbs. Zero Fuel Note 1: Current weight and balance report, together with list of equipment included in certificated empty weight and loading instructions, when necessary, must be provided for each aircraft at the time of modification. Number SA1797NM Limitations and Conditions(continued) Note 2: The following PLACARDS must be displayed as indicated: (1) Adjacent to or in close proximity to the aircraft identification plate: **CONTINENTAL ENGINE** SUPPLEMENTAL DATA PLATE STC SE1796NM TAKEOFF (5 MIN) 220 HP 2800 RPM, 40 in Hg MP MAX CONT. 200 HP 2600 RPM, 40 in Hg MP (2) In full view of the pilots: **CAUTION** **WITH INTERCOOLER INSTALLED** **USE INDUCTION AIR COOLING GAGE TEMP** **TO REDUCE MP FOR RATED POWER** (3) In full view of the pilots: END **POWER SETTINGS USE POHS 1797 SECTION 4 MAX T.O. WT 4750 LBS.** MAX Ldg WT 4342LBS ALL WTS ABOVE 4012 LBS MUST BE FUEL TAKEOFF (5 MIN) 220 HP 2800 RPM, 40 in Hg MP MAX CONT. 200 HP 2600 RPM, 40 in Hg MP ## Every issue (5) - February 24, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/38/eb/38eb61bc2c610ff91197df10fbc69e2699e0ab65c990d9de11dccdbc40426f33) - May 21, 2012: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/b1/94/b194ef46d85ffe8bc4e8ce84e565bdbf5e8f0caf46073347d213d54e4f076149) - April 12, 2012: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/87/e7/87e7de7f050faf5a8c3e5779f8e9e8854c998e8eb4712ff5d057054c89b483f3) - October 15, 2007: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/d1/30/d130a250a9744c66d1bc03c7c0031babf0ce0fa2da0a533fdbd3e924cfb8c145) - August 25, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/8d/40/8d40e7d0753308629afe55ad95f962d169d941f29e08223c426ba3fd4a4878a9) --- 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.