# STCs that may be installed: N73HA

A list on [N73HA](https://openairdocs.org/aircraft/N73HA.md).

Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do. In force first, then newest.

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH.md): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification · Swift Fuels LLC
- [STC SA7965SW](https://openairdocs.org/stc/SA7965SW.md): Application of fabric and polyurethane finishing system. · Shady Aviation LLC
- [STC SA01757WI](https://openairdocs.org/stc/SA01757WI.md): To allow the use of UL91 or UL94 (minimum) grade aviation fuel · Swift Fuels LLC
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI.md): Use of GAMI G100UL High Octane Unleaded Avgas · General Aviation Modifications Inc.
- [STC SA04776NY](https://openairdocs.org/stc/SA04776NY.md): The HIPEC Covering and Finishing System must be performed and maintained · HIPEC Aircraft Coatings Inc.
- [STC SA01831WI](https://openairdocs.org/stc/SA01831WI.md): To allow the use of UL91 (minimum) grade aviation fuel · Petersen Aviation Inc
- [STC SA01406NY](https://openairdocs.org/stc/SA01406NY.md): Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and rotary wing · Airwolf Filter Corporation
- [STC SA02428SE](https://openairdocs.org/stc/SA02428SE.md): Installation of an Air Stream Switch for an electric time recording device on non-pressurized aircraft · Henry F Rogers/David E Polley
- [STC SA00478CH](https://openairdocs.org/stc/SA00478CH.md): Installation of Cooper Superflite 102 Fabric. · Aviation Products Systems Inc.
- [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202.md): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P · Electronics International Inc.
- [STC SA02402SE PAGE 1](https://openairdocs.org/stc/SA02402SE%20PAGE%201.md): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C · Electronics International Inc.
- [STC SA00068SE](https://openairdocs.org/stc/SA00068SE.md): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1) · Electronics International Inc.
- [STC SA01988SE](https://openairdocs.org/stc/SA01988SE.md): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P. · Electronics International Inc.
- [STC SA02033AT](https://openairdocs.org/stc/SA02033AT.md): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. · M-20 Oil Separators LLC
- [STC SA8075SW](https://openairdocs.org/stc/SA8075SW.md): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER) · Razorback Fabrics Inc
- [STC SA1008WE](https://openairdocs.org/stc/SA1008WE.md): Installation of Poly-Fiber covering material. · Poly-Fiber Inc. · Lists M-62 Series
- [STC SA1308GL](https://openairdocs.org/stc/SA1308GL.md): Surrendered and incorporated into STC SA00478CH. · Cooper Aviation Supply Company, Inc.
- [STC SA00068LA](https://openairdocs.org/stc/SA00068LA.md): Installation of tail wheel adapter ring. · R-R-R-Russ Aircraft
- [STC SA00745CH](https://openairdocs.org/stc/SA00745CH.md): Installation of Cleveland Wheels and Brakes conversion Kit 199-167. · Kalamazoo Aviation History Museum
- [STC SA2-952](https://openairdocs.org/stc/SA2-952.md): Installation of fiberglass covering. · Razorback Fabrics Inc · Lists M-62 Series
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE.md): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12) · Ceconite Inc
- [STC SA180SW](https://openairdocs.org/stc/SA180SW.md): Modification of aircraft to 1 PCLM Part 8 agricultural aircraft. · Olsen Ernest · Lists M-62 Series
- [STC SA333SW](https://openairdocs.org/stc/SA333SW.md): Part 8 agricultural aircraft modification. · Olsen Ernest · Lists M-62 Series
- [STC SA648SW](https://openairdocs.org/stc/SA648SW.md): Jacobs R755-9-B2M engine, propeller, revised aileron. · Olsen Ernest · Lists M-62 Series
- [STC SA1350WE](https://openairdocs.org/stc/SA1350WE.md): Replace existing fabric on wings, fuselage, empennage and/or control surfaces with fiberglass cloth. · Ceconite, Inc
- [STC SA4-1362](https://openairdocs.org/stc/SA4-1362.md): Spraying and dusting modification. · Weatherly Avn Co Inc · Lists M-62 Series
- [STC SA4-1082](https://openairdocs.org/stc/SA4-1082.md): Ceconite 101 covering of fuselage, ailerons, elevators and rudder. · Cooper Engineering Corporation · Lists M-62 Series
- [STC SA4-840](https://openairdocs.org/stc/SA4-840.md): Fabric replaced with glass cloth on wings, fuselage, empennage and/or control surfaces. · Air Fibre Inc · Lists M-62 Series
- [STC SA612WE](https://openairdocs.org/stc/SA612WE.md): Pratt & Whitney R-985-AN1 engine. · Weatherly Avn Co Inc · Lists M-62 Series
- [STC SH111WE](https://openairdocs.org/stc/SH111WE.md): Installation of step on either side or both sides of aircraft, attached to skid and torsion bar between Stations 60 and 100. · USDA Forest Service · Lists M-62 Series
- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH.md): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22 · Swift Fuels LLC · Lists W670-16
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI.md): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines · General Aviation Modifications Inc. · Lists W670-16
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW.md): Installation of coated cylinders and piston rings. · Continental Motors, Inc.
- [STC SE7492SW](https://openairdocs.org/stc/SE7492SW.md): Install Delco starter P/N 1108684 or Eclipse/Bendix Utica model E80 starters · Rare Aircraft Ltd · Lists W670-16
- [STC SE04136AT](https://openairdocs.org/stc/SE04136AT.md): Installation of Bendix Scintilla WL-7A Battery Ignition Timer (distributor) modified from a breaker points and condenser design to a Hall Effect electronic sensor design · Air Repair Inc · Lists W670-23
- [STC SE00809WI](https://openairdocs.org/stc/SE00809WI.md): Installation of a modified alternate source of supply, engine ignition coil assembly and condenser · Air Repair Inc · Lists W670-23
- [STC SE01652WI](https://openairdocs.org/stc/SE01652WI.md): Modification of engine to replace contact points and condenser controlled Bendix Scintilla WL-7A battery timer (distributor) with an electronically controlled WL-7A-M battery timer. · Radial Engines Ltd · Lists W670-23
- [STC SE01144SE](https://openairdocs.org/stc/SE01144SE.md): Installation of Olde Thyme Aviation, Inc. pistons, P/N OTA-4032-T6 or Air Repair, Inc. pistons, P/Ns AR4177 (5 each) and AR4177-1 (2 each), to replace Teledyne Continental Motors pistons P/N 4177. · Air Repair Inc · Lists W670-16
- [STC SE01243WI](https://openairdocs.org/stc/SE01243WI.md): Installation of Barron Aviation intake tube drain kits on the engines listed on the attached FAA Approved Model List (AML) No. SE01243WI, dated April 26, 2004, or later FAA Approved revision. · Barron Aviation · Lists W670-16
- [STC SE01145SE](https://openairdocs.org/stc/SE01145SE.md): Option 1) Installation of Olde Thyme Aviation Inc. crankshaft bearings OTA-21201-AB (rear) and OTA-21301-FB (front) Option 2) Installation of Olde Thyme Aviation Inc. replacement intake valve guides P/N OTA-20241-IG Option 3) Installation of Olde Thyme Aviation Inc. replacement exhaust valve guides P/N OTA-20406-EG · Air Repair Inc · Lists W670-16
- [STC SE01146SE](https://openairdocs.org/stc/SE01146SE.md): Option 1) Installation of Gold Coast Aviation crankshaft bearings GCA-21201-AB (rear) and GCA-21301-FB (front) Option 2) Installation of Gold Coast Aviation replacement intake valve guides P/N GCA-20241-IG Option 3) Installation of Gold Coast Aviation replacement exhaust valve guides P/N GCA-20406-EG · Gold Coast Aviation Service Inc · Lists W670-16
- [STC SE00946LA](https://openairdocs.org/stc/SE00946LA.md): Installation of engine crankshaft front and rear bearings. · Holloway Engineering Co · Lists W670-6A
- [STC SE00372LA](https://openairdocs.org/stc/SE00372LA.md): Installation of a Jacobs shielded ignition harness on Teledyne Continental Motors engine models. · Aero Engines Inc · Lists W670-16
- [STC SE7491SW](https://openairdocs.org/stc/SE7491SW.md): Install Scintilla VNM-7DFA magnetos on W-670-6A and -6N engines. · Air Repair
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW.md): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. · Phillips Petroleum Co
- [STC SE4127SW](https://openairdocs.org/stc/SE4127SW.md): Install modified W-670-23 piston, P/N 4180, to replace W-670-6A piston, P/N 4177. · Air Repair · Lists W670-6A
- [STC SE2028CE](https://openairdocs.org/stc/SE2028CE.md): Add the following approved fuel: 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 SE5WE](https://openairdocs.org/stc/SE5WE.md): Compression ratio tank pistons · Salinas Engine Works · Lists W670-24
- [STC SE03079AT](https://openairdocs.org/stc/SE03079AT.md): Modify the Teledyne Continental W670 Series aircraft engines by replacing the crankshaft front and rear main ball bearings with higher capacity roller bearings · Air Repair Inc. · Lists W670-16

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT m.matched_by, s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
FROM (
  SELECT stc_number, min(side) AS side, arg_min(matched_by, side) AS matched_by, arg_min(matched_model, side) AS matched_model
  FROM (SELECT stc_number, 1 AS side, 'airframe' AS matched_by, matched_model FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet' WHERE aircraft_model_code = '3371630'
    UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '17018')
  GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY m.side, s.status = 'Current' DESC, s.status_date DESC, s.stc_number
```

This list as a web page: https://openairdocs.org/aircraft/N73HA/stcs

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