# TCDS A18EA: WACO Classic Aircraft Corporation

- Type: Type certificate data sheet
- Status: Current
- Holder: WACO Classic Aircraft Corporation
- Revision: 14
- Revised: February 14, 2022
- Product: Aircraft, Small Airplane
- Certification basis: Part 23
- Registered aircraft: 142, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/0b/63/0b6373a25bb48b35914c5d97c228b16bb5e15f329cddf01001890e1cc8893c71
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/895D52C28D354AAA8625884600715B2E.0001
- Page: https://openairdocs.org/tcds/A18EA

## Models (3)

As the data sheet lists them.

- 2T-1A-1
- 2T-1A
- 2T-1A-2

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
Page No. 1 2 3 4 5 6 
Rev No. 12 11 11 14 12 13 
 
DEPARTMENT OF TRANSPORTATION  
FEDERAL AVIATION ADMINISTRATION 
 
A18EA 
Revision 14 
 
2T-1A 
2T-1A-1 
2T-1A-2 
 
February 14, 2022,  
 
TYPE CERTIFICATE DATA SHEET A18EA 
 
This data sheet which is a part of Type Certificate No. A18EA prescribes conditions and limitations under which the product for 
which the Type Certificate was issued meets the airworthiness requirements of the Federal Aviation Regulations. 
 
Type Certificate Holder: WACO Classic Aircraft Corporation  
  15955 S. Airport Road 
  Battle Creek, Michigan 49015 
 
 
Type Certificate Ownership Record:  
   
  A18EA Issued to Windward Aviation, Inc. on January 14, 1972 
 
  Reissued to Windward Aviation, Inc. on February 17, 1972 
 
  Reissued to Great Lakes Aircraft Company on September 5, 1972 to add  
  Models 2T-1A-1 and 2T-1A-2. 
 
  Reissued to Great Lakes Aircraft Company (Russel Dean Franklin, Jr.) on September      
  6, 1979 
 
  Great Lakes Aircraft Company (Russel Dean Franklin, Jr) transferred ownership of         
  Type Certificate A18EA to Chaparral Motors, Inc. on January 17, 1989. 
 
  Chaparral Motors, Inc. (John Duncan) changes to name and address on September 27,       
 2000. 
 
Great Lakes Aircraft Company, LLC (John Duncan) transferred ownership of Type 
Certificate A18EA to Waco Classic Aircraft Corporation on October 21, 2011. 
 
I - Model 2T-1A, 1 or 2 POLB, Approved 1/14/72 
 
 Engine American Cirrus Mark III 
 
 Fuel 73 minimum octane aviation gas 
 
 Engine limits Takeoff 2100 r.p.m.  (100 hp.) 
  Maximum Continuous 2100 r.p.m.  (100 hp.) 
 
 Propeller and Fixed pitch wood or adjustable metal 
   propeller limits (Hamilton Standard 7020 hub, 25V2 blades)  
  See NOTE 4 
 
 Airspeed limits Maximum speed  (S.L.) 100 m.p.h..  (95.5 knots) 
   (CAS) Landing speed   40 m.p.h.  (34.8 knots) 
  Cruising speed   90 m.p.h.  (78.2 knots) 
 
  
 M.A.C. 45.75 in. (L.E. of MAC is 10 in. forward of leading edge of lower

A18EA 
Page 2 
 
  wing) 
 
 Maximum weight 1618 lb. 
 
 Minimum Crew 1 (pilot) 
 
 No. of seats Two 
 
 Maximum baggage 13 lb. as 2-place 
  200 lb. as 1-place 
  (Pay load includes 2 parachutes, 20 lb. each) 
 
 Fuel capacity 26 gal. (+60.5) 
 
 Oil capacity 8 qt. (+22.5) 
 
Control surface movements Aileron (+1°) Up 24° Down 22° 
 Stabilizer (+1/2°) Up 7-1/4° Up 1/4° 
 Elevator (+1°) Up 21° Down 29° 
 Rudder (+1°) Left 35° Right  35° 
 
 Serial Nos. eligible 0501 and 0502 
  See NOTE 5 
 
II - Model 2T-1A-1, 1 or 2 POLB (Acrobatic Category) (See NOTE 6), Approved 12/17/73 
 
 Engine Lycoming O-320-E2A installed per Great Lakes Dwg. 50123; or Lycoming 
  IO-360-B1F6 or AEIO-360-B1G6 installed per Great Lakes Dwg. 50148 
 
 Fuel Lycoming O-320-E2A, 80/87 minimum grade aviation fuel 
 
  Lycoming IO-360-B1F6 and AEIO-360-B1G6, 91/96 minimum grade aviation 
  fuel 
 
 Engine limits Lycoming O-320-E2A 
  Takeoff 2450 r.p.m.  (140 hp.) 
  Maximum Continuous 2450 r.p.m.  (140 hp.) 
 
  Lycoming IO-360-B1F6 and AEIO-360-B1G6 
  Takeoff 2700 r.p.m.  (180 hp.) 
  Maximum continuous 2700 r.p.m.  (180 hp.) 
 
 Propeller and Lycoming O-320-E2A 
   propeller limits McCauley 1C160-EGM 7654 
  Diameter:  Not over 76 in., not under 74.5 in. 
  Static r.p.m. at maximum permissible throttle setting: 
  Not over 2350 r.p.m., not under 2250 r.p.m. 
  No additional tolerance permitted. 
 
  Lycoming IO-360-B1F6 and AEIO-360-B1G6, 
  (a) Hartzell HC-C2YK-4F/FC7666A-2 
        Diameter:  74.0 in. 
      No reduction allowed 
        Pitch settings at 30 in. sta.: 
        low 12.5°, high 26.8° 
  (b)   Hartzell Spinner P/N 835-41 
  (c)   Hartzell Hydraulic Governor No. F6-31 
 
  
 
 
Airspeed limits                   Landplane 
   (CAS) Never exceed 142 m.p.h.  (124 knots) 
    Max. structural cruise 120 m.p.h.  (105 knots)

A18EA 
Page 3 
 
  Maneuvering 120 m.p.h.  (105 knots) 
 
 M.A.C. 46.0 in. (L.E. of MAC is Sta. 9.0) 
 
 C.G. Range (15.7) at 1600 lb. or less 
  (18.9 to 23.0) at 1750 lb. 
  Straight line variation between points given 
 
 Empty Wt. C.G. None 
 
 Maximum weight 1750 lb. 
 
 No. of seats 2  (1 at 27.5, 1 at 61.5) 
 
 
 
 Maximum baggage 40 lb. (+92.0) 
 
 Fuel capacity 27.4 gal. (+26.7 gal. usable, one 26.0 gal. tank in top wing at  
  +13.0 and one 1.4 gal. header tank in fuselage at +5.0).  (Lycoming  
  IO-360-B1F6 and AEIO-360-B1G6)  See NOTE 1 for data on unusable fuel 
 
  26 gal. (26.0 gal. usable, one 26 gal. tank in top wing at +13.0)  
  (Lycoming O-320-E2A) 
  See NOTE 1 for data on unusable fuel 
 
 Oil capacity 8 qt. (-24.0) (4 qt. usable) 
  Lycoming IO-360-B1F6 and AEIO-360-B1G6 
 
  8 qt. (-24.0) (6 qt. usable) 
  Lycoming O-320-E2A 
  See NOTE 1 for data on oil system 
 
  Control surface movements Aileron (+1°) Up 24° Down 22° 
   for both 2-aileron and 4-aileron configuration 
 Stabilizer (+1/2°) Up 7-1/4° Up 1/4° 
 Elevator (+1°) Up 21° Down 29° 
 Rudder (+1°) Left 35° Right 35° 
 
 Serial Nos. eligible 0503 and 0699 
  See NOTE 5 
 
III - Model 2T-1A-2, 1 or 2 POLB (Acrobatic Category) (See NOTE 6) Approved 7/25/74 
 Engine Lycoming IO-360-B1F6 or AEIO-360-B1G6 installed per Great Lakes Dwg.  
  50148 or Lycoming O-320-E2A installed per Great Lakes Dwg. 50123 
 
 Fuel Lycoming IO-360-B1F6 and AEIO-360-B1G6, 91/96 minimum grade aviation fuel 
  Lycoming O-320-E2A, 80/87 minimum grade aviation fuel 
 
 Engine limits Lycoming IO-360-B1F6 and AEIO-360-B1G6 
  Takeoff 2700 r.p.m.  (180 hp.) 
  Maximum Continuous 2700 r.p.m.  (180 hp.) 
 
  Lycoming O-320-E2A 
  Takeoff 2450 r.p.m.  (140 hp.) 
  Maximum continuous 2450 r.p.m.  (140 hp.) 
 
  
 
 Propeller and Lycoming IO-360-B1F6 and AEIO-360-B1G6, 
   propeller limits (a) Hartzell HC-C2YK-4F/FC7666A-2 
   Diameter:  74.0 in. 
   No reduction allowed 
   Pitch settings at 30 in. sta.:

A18EA 
Page 4 
 
   low 12.5°, high 26.8° 
   Hartzell Spinner P/N 835-41 
   Hartzell Hydraulic Governor No. F6-31or Hartzell Hydraulic Governor No. S-4-5 
  (b) MT Propeller Model MTV-15-B-C/C-188-34 
   Diameter 188 cm (74 in) +/-.5 cm (.2 in) 
   Pitch Settings at 70.5 cm (27.75 in) sta. 
   Low 9° +/- .2°, High 34° +/- 1°  
   MT Spinner Assembly Part Number P-277-B 
   Hartzell Hydraulic Governor No. S-4-5 
  (c) MT MTV-9-B-C/C188-18b (See NOTE 7) 
   Diameter 188 cm (74 in) +0cm, -5cm  
   Pitch Settings at 70.5 cm (27.75 in) sta. 
   Low 9° +/- .2°High 30° +/-1° 
   MT Spinner Assembly Part Number P-208-C 
   Hartzell Hydraulic Governor No. S-4-5 
 
  Lycoming O-320-E2A 
  McCauley 1C160-EGM 7654 
  Diameter:  Not over 76 in., not under 74-5 in. 
  Static r.p.m. at maximum permissible throttle setting: 
  Not over 2350 r.p.m., not under 2250 r.p.m. 
  No additional tolerance permitted. 
 
 Airspeed limits            Landplane 
  Never exceed 153 m.p.h.  (133 knots) 
  Max. structural cruise 120 m.p.h.  (105 knots) 
  Maneuvering 120 m.p.h.  (105 knots) 
 
 C. G. range (+15.7) at 1600 lb. or less 
  (+20.0) to (+23.8) at 1800 lb. 
  Straight line variation between points given 
 
 Empty Wt. C.G. None 
 
 Maximum weight 1800 lb. 
 
 No. of seats 2 (1 at 27.5, 1 at 61.5) 
 
 Maximum baggage (a) 40 lb. (+92.0) Serial No. 701 to 1199 
  (b) 10 lb (+84.0) pilot’s headrest compartment Serial No. 1200 and up 
  (c) 30 lb (+92.0) aft compartment if installed Serial No. 1200 and up 
 
 Fuel capacity 27.4 gal. (26.7 gal. usable, one 26.0 gal. tank in top wing at +13.0  
  and one 1.4 gal. header tank in fuselage at +5.0).  (Lycoming IO- 360-B1F6  
  and AEIO-360-B1G6)  See NOTE 1 for data on unusable fuel 
 
  26 gal. (26.0 gal. usable, one 26 gal. tank in top wing at +13.0)  
  (Lycoming O-320-E2A)  See NOTE 1 for data on unusable fuel 
 
 Oil capacity 8 qt. (-24.0) (4 qt. usable) 
  Lycoming IO-360-B1F6 and AEIO-360-B1G6 
  See NOTE 1 for data on oil system 8 qt. (-24.0)  
  (6 qt. usable (Lycoming O-320-E2A) 
 
  Control surface movements Aileron (+1°) Up 24° Down 22° 
 Stabilizer (+1/2°) Up 7-1/4° Up 1/4° 
 Elevator (+1°) Up 21° Down 29° 
 Rudder (+1°) Left 35° Right 35° 
 
 Serial Nos. eligible 0701 and up

A18EA 
Page 5 
 
 
Data Pertinent to all Models 
 
 Datum Fuselage Sta. (00) is center of most forward lateral fuselage tube. 
  A pin is located on the lower side of landing gear streamline tube  
  to indicate datum. 
 
 Leveling means Upper Longeron at cockpit 
 
  
 Certification basis Aeronautics Bulletin No. 7-A dated October 1, 1934; FAR 23 dated  
  February 1, 1967, Amendments 23-1 through 23-7 for powerplant  
  installation; Type Certificate A18EA issued January 14, 1972.  Great  
  Lakes Company obtained Exemption No. 1163 which granted an  
  exemption from Section 21.17 of the FAR to permit the issuance of  
  the Type Certificate incorporating the type design portion of ATC-228. 
 
 Production basis Production Certificate Number 328CE 
 
 Equipment The basic required equipment as prescribed in the applicable airworthiness  
  regulations (see Certification Basis) must be installed in the aircraft for  
  certification. 
 
  In addition, the following items of equipment are required: 
 
  1. FAA approved Airplane Flight Manual as follows: 
   a. Serial Nos. 0501 and 0502, approval date July 13, 1973, or 
    later FAA approved revision as required by STC SA941CE. 
 
   b. Serial Nos. 0503 through 0699; approval date Nov. 9, 1973, 
    or later FAA approved revision. 
 
   c. Serial Nos. 0701 through 1199; approval date July 25, 1974, or 
    later FAA approved revision. 
 
   d. Serial Nos. 1200 and up; approval date March 20, 2014 or later FAA approved 
revision 
 
NOTE 1. Current weight and balance report together with list of equipment included in certificated empty weight must 
be provided for each aircraft at time of original certification.  The certificated empty weight and corresponding 
center of gravity location must include unusable fuel of 0.0 lb. at (+13.0) and system oil of 1.0 lb. at (-4.0) for 
airplanes with Lycoming O-320-E2A engines.  Certificated empty weight and corresponding center of gravity 
location must include unusable fuel of 4.0 lb. at (+5.0) and system oil of 1.0 lb. at ( -4.0) for airplanes with 
Lycoming IO-360-B1F6 and AEIO-360-B1G6 engines. 
 
NOTE 2. All placards specified in FAA Approved Airplane Flight Manual must be displayed in the airplane. 
 
NOTE 3. Reserved. 
 
NOTE 4. Reference CAR 04.61 Dated May 31, 1938, to determine propeller diameter and static r.p.m. limits. 
 
NOTE 5. Serial Nos. 0501 and 0502 are modified by installation of the Lycoming O-320-E2A engine per STC SA941CE; 
and Cleveland 20 -80 wheels and brakes, Cleveland IO -5 master cylinders, and Scott tail wheel per STC 
SA942CE.  These airplanes eligible for certification as 2T- 1A-1 airplanes when Identification Plate 00120 -1 
and FAA Approved Airplane Flight Manual for the 2T -1A-1 dated November 9, 1973 with Rev. "B" dated 
April 22, 1975, or later FAA approved revision are installed. 
 
NOTE 6. The certification basis for these airplanes does not contain operating categories, i.e., normal, utility or acrobatic, 
as listed in current certification regulations.  However, since certain of these models were designed to perform 
and have demonstrated the capability to perform the acrobatic maneuvers listed in the approved airplane flight 
manual plus those maneuvers not exceeding the load factors listed below, the words "acrobatic category" are 
included so that those persons concerned with these airpla nes understand their capacity in terms of current 
practices.  Maneuvering load factors are as follows:

A18EA 
Page 6 
 
  A. 2T-1A-1 +5.05 to -2.05 
  B. 2T-1A-2 +5.40 to -4.00 
 
  For the above reasons, the airworthiness certificate for 2T-1A-1 and 2T-1A-2 airplanes are to be issued in the 
acrobatic category. 
 
 NOTE 7. Installation of MTV-9-B-C/C188-18b propeller limited to Serial Numbers 1200 and up. 
 
...END...
```

## ADs (8, in force first)

- [AD 2023-26-03](https://openairdocs.org/ad/2023-26-03): Wing, Rib/Bulkhead · WACO Classic 2T-1A-2. Effective Feb 7, 2024
- [AD 2022-03-15](https://openairdocs.org/ad/2022-03-15): Fuel Quantity Indicator · Garmin G3X Touch Electronic Flight Instrument System (STC SA01899WI or SA02658SE). Effective Mar 21, 2022
- [AD 2012-11-08](https://openairdocs.org/ad/2012-11-08): Horizontal Stabilizer Spar/Rib · WACO Classic 2T-1A, 2T-1A-1 and 2T-1A-2. Effective Jun 20, 2012
- [AD 2004-25-22](https://openairdocs.org/ad/2004-25-22): Engine induction system · Great Lakes 2T-1A-1 and 2T-1A-2. Effective Jan 28, 2005
- [AD 78-26-10 R1](https://openairdocs.org/ad/78-26-10-R1): Cockpit Heater System · Great Lakes 2T-1A-1 and 2T-1A-2. Effective Dec 17, 1986
- [AD 80-21-12 R1](https://openairdocs.org/ad/80-21-12-R1): Engine Oil System · Great Lakes 2T-1A-1 and 2T-1A-2. Effective Apr 14, 1983
- [AD 80-25-07 R1](https://openairdocs.org/ad/80-25-07-R1): Oil Coolers · American Champion 7ECA, 7GCAA, 7GCBC and 39 more. Effective Sep 24, 1981
- [AD 79-20-08](https://openairdocs.org/ad/79-20-08) (historical): Induction System · Great Lakes 2T-1A-1 and 2T-1A-2. Effective Oct 8, 1979

## Registered aircraft by registry model (OpenAirDocs)

- [Great Lakes 2T-1A-2](https://openairdocs.org/model/great-lakes-2t-1a-2): 115 aircraft (registry code 3910101)
- [Waco Classic 2T-1A-2](https://openairdocs.org/model/waco-classic-2t-1a-2): 20 aircraft (registry code 9600427)
- [Great Lakes 2T-1A-1](https://openairdocs.org/model/great-lakes-2t-1a-1): 6 aircraft (registry code 3910107)
- [Great Lakes/Fritz Joe 2T-1A-2](https://openairdocs.org/model/great-lakes-fritz-joe-2t-1a-2): 1 aircraft (registry code 05605C5)
- [Great Lakes-Ewertz William A 2T-1A-2](https://openairdocs.org/model/great-lakes-ewertz-william-a-2t-1a-2): 0 aircraft (registry code 3910103)
- [Great Lakes/Henderson 2T 1A 2](https://openairdocs.org/model/great-lakes-henderson-2t-1a-2): 0 aircraft (registry code 3910290)

## STCs approved under this data sheet (53, first 50)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA02636SE](https://openairdocs.org/stc/SA02636SE): Installation of Garmin GPS 175 Navigation System and GNX 375 Navigation System with ADS-B In/Out Transponder.. Garmin International Inc.
- [STC SA02019SE-D](https://openairdocs.org/stc/SA02019SE-D): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc.
- [STC SA04046CH PAGE 2](https://openairdocs.org/stc/SA04046CH%20PAGE%202): Installation of L-3 GENESIS  (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc.
- [STC SA7965SW](https://openairdocs.org/stc/SA7965SW): Application of fabric and polyurethane finishing system.. Shady Aviation LLC
- [STC SA04378CH](https://openairdocs.org/stc/SA04378CH): Installation of an engine modified per STC SE04349CH. SureFly Partners Ltd.
- [STC SA02594SE](https://openairdocs.org/stc/SA02594SE): SkyView HDX Instrumentation and Autopilot System manufactured. Dynon Avionics
- [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC
- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc.
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc.
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc.
- [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc.
- [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC
- [STC SA03819NY](https://openairdocs.org/stc/SA03819NY): Installation and maintenance of Oratex 6000 Covering and Coating System. Lanitz-Prena Folien Factory GmbH
- [STC SA01818WI](https://openairdocs.org/stc/SA01818WI): Installation of Garmin G5 Electronic Flight Instrument. Garmin International Inc.
- [STC SA00401BO](https://openairdocs.org/stc/SA00401BO): Installation of a SkyTrax100B UAT receiver. Avidyne Corporation
- [STC SA2368CE](https://openairdocs.org/stc/SA2368CE): Installation of plywood covering on the bottom of the wing center section.. Great Lakes Aircraft Company LLC
- [STC SA00410BO](https://openairdocs.org/stc/SA00410BO): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation
- [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc
- [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems.. Garmin International Inc
- [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems.. J P Instruments
- [STC SA02428SE](https://openairdocs.org/stc/SA02428SE): Installation of an Air Stream Switch for an electric time recording device on non-pressurized aircraft. Henry F Rogers/David E Polley
- [STC SA02119SE PAGE 2](https://openairdocs.org/stc/SA02119SE%20PAGE%202): Installation of Garmin GDL 88 ADS-B UAT Transceiver System. Garmin International Inc
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH): Installation of Cooper Superflite 102 Fabric.. Aviation Products Systems Inc.
- [STC SA02442AK PAGE 2](https://openairdocs.org/stc/SA02442AK%20PAGE%202): Approval of the L-3 Communications NGT 2000/2500 ADS-B system. ADS-B Technologies, LLC
- [STC SA01669CH](https://openairdocs.org/stc/SA01669CH): Installation of Challenger Reusable Air Filter. Challenger Aviation Products Inc.
- [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc.
- [STC SA02402SE PAGE 2](https://openairdocs.org/stc/SA02402SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc.
- [STC SA00432SE](https://openairdocs.org/stc/SA00432SE): Installation of EGT 701 series fuel flow instrument.. J P Instruments
- [STC SA00861SE](https://openairdocs.org/stc/SA00861SE): Installation of J.P. Instruments (JPI) fuel flow indicating system. J P Instruments
- [STC SA01487SE-D](https://openairdocs.org/stc/SA01487SE-D): Installation of a GDL 69 or GDL 69A XM Satellite Receiver. Garmin International Inc
- [STC SA2775SO](https://openairdocs.org/stc/SA2775SO): Installation of an emergency induction air door in accordance with Aircraft Specialist Installation Instructions, Alternate Air Door Adapter,  dated April 30, 1990, or later FAA approved revision and Drawing Nos. AAD 16670-1, revised April 21, 1990; AAD 16670-2, revised April 21, 1990; and AAD16670-3, dated April 21, 1990, or later FAA approved revisions.. WACO Classic Aircraft Corporation
- [STC SA00123BO](https://openairdocs.org/stc/SA00123BO): Installation of split cowl nose bowl.. WACO Classic Aircraft Corporation
- [STC SA1884SO](https://openairdocs.org/stc/SA1884SO): Installation of sliding canopy.. WACO Classic Aircraft Corporation
- [STC SA563CH](https://openairdocs.org/stc/SA563CH): Authorizes installation of engines equipped w/Unison Limited Authority Spark Advance Regulator (LASAR) ignition system w/Cylinder Head Temp. (CHT) monitoring capability on airframes. engines.. Champion Aerospace LLC
- [STC SA593CH](https://openairdocs.org/stc/SA593CH): Install Champion SlickSTART magneto booster system.. Champion Aerospace LLC
- [STC SA2683NM](https://openairdocs.org/stc/SA2683NM): Installation of Precise Flight, Inc. stand-by vacuum system (SVS). Precise Flight Inc
- [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 SA693CE](https://openairdocs.org/stc/SA693CE): Replace existing engine induction air filter with AC Spark Plug filter.. Brackett Aero Filters Inc.
- [STC SA00194AT](https://openairdocs.org/stc/SA00194AT): Installation of Appalachian Accessories carbon steel brake discs that have the melonite surface treatment, P/N AA-40.. Aviation Products, Inc
- [STC SA1626NM PAGE 1](https://openairdocs.org/stc/SA1626NM%20PAGE%201): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA2102CE](https://openairdocs.org/stc/SA2102CE): Operation of airplane on unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved.. Petersen Aviation Inc
- [STC SA2350NM PAGE 1](https://openairdocs.org/stc/SA2350NM%20PAGE%201): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer.. Electronics International
- [STC SA3862NM PAGE 1](https://openairdocs.org/stc/SA3862NM%20PAGE%201): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories.. Electronics International
- [STC SA1982SO](https://openairdocs.org/stc/SA1982SO): Installation of Appalachian stainless steel brake discs P/N 75-40.. Appalachian Accessories
- [STC SA2190NM PAGE 2](https://openairdocs.org/stc/SA2190NM%20PAGE%202): Installation of electronics International Digital Volt/Amp Gauges and Accessories.. Electronics International
- [STC SA941CE](https://openairdocs.org/stc/SA941CE): Installation of engine, propeller and fuel system.. Great Lakes Aircraft Co
- [STC SA001410BO](https://openairdocs.org/stc/SA001410BO) (historical): Installation of an AV-30-C Multi-Mode Indicator. uAvionix Corporation

All 53: https://openairdocs.org/tcds/A18EA/stcs.md

---
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