# Rearwin 175

- Type: Aircraft model (FAA registry)
- Registry code: 2370402
- Manufacturer (registry): REARWIN
- Model: 175
- Aircraft type: Fixed wing single engine
- Category: Airplane
- Engines: 1 · Reciprocating
- Seats: 2
- Weight class: Up to 12,499 lb
- Cruise speed: 86 mph
- Certification: Type certificated
- Data sheet: [TCDS A-729](https://openairdocs.org/tcds/A-729) (OpenAirDocs)
- Holder: Commonwealth Aircraft Inc.
- Registered aircraft: 11
- Page: https://openairdocs.org/model/rearwin-175

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## 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.

- [AD 48-06-02](https://openairdocs.org/ad/48-06-02): Jury Struts · Commonwealth 175, 180, 180F and 2 more

## Registered aircraft (11)

- [N25571](https://openairdocs.org/aircraft/N25571): [Atterbury Leslie D](https://openairdocs.org/faa-owner/ATTERBURY%20LESLIE%20D), [Amarillo, TX](https://openairdocs.org/faa-place/TX/Amarillo), built 1940, S/N 1502, Registration revoked
- [N27233](https://openairdocs.org/aircraft/N27233): [Port Townsend Aero Museum](https://openairdocs.org/faa-owner/PORT%20TOWNSEND%20AERO%20MUSEUM), [Port Townsend, WA](https://openairdocs.org/faa-place/WA/Port%20Townsend), built 1940, S/N 1508
- [N27298](https://openairdocs.org/aircraft/N27298): [Hetge Kenneth R](https://openairdocs.org/faa-owner/HETGE%20KENNETH%20R), [Viola, AR](https://openairdocs.org/faa-place/AR/Viola), built 1940, S/N 1512
- [N32310](https://openairdocs.org/aircraft/N32310): [Gibson Chris F](https://openairdocs.org/faa-owner/GIBSON%20CHRIS%20F), [De Pere, WI](https://openairdocs.org/faa-place/WI/De%20Pere), built 1940, S/N 1519
- [N32383](https://openairdocs.org/aircraft/N32383): [Miller Scott D](https://openairdocs.org/faa-owner/MILLER%20SCOTT%20D), [Springfield, OH](https://openairdocs.org/faa-place/OH/Springfield), S/N 1532
- [N32398](https://openairdocs.org/aircraft/N32398): [Cramer David C](https://openairdocs.org/faa-owner/CRAMER%20DAVID%20C), [Fredericksburg, VA](https://openairdocs.org/faa-place/VA/Fredericksburg), S/N 1524
- [N32399](https://openairdocs.org/aircraft/N32399): [Orton Leon J](https://openairdocs.org/faa-owner/ORTON%20LEON%20J), [Nibley, UT](https://openairdocs.org/faa-place/UT/Nibley), S/N 1525
- [N34703](https://openairdocs.org/aircraft/N34703): [Henry Gary P](https://openairdocs.org/faa-owner/HENRY%20GARY%20P), [Carthage, MO](https://openairdocs.org/faa-place/MO/Carthage), built 1941, S/N 1540
- [N34705](https://openairdocs.org/aircraft/N34705): [Wings Den LLC](https://openairdocs.org/faa-owner/WINGS%20DEN%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1941, S/N 1542
- [N34730](https://openairdocs.org/aircraft/N34730): [Ivy James H III](https://openairdocs.org/faa-owner/IVY%20JAMES%20H%20III), [Seligman, AZ](https://openairdocs.org/faa-place/AZ/Seligman), built 1941, S/N 1543
- [N34846](https://openairdocs.org/aircraft/N34846): [Irwin Jeremy D](https://openairdocs.org/faa-owner/IRWIN%20JEREMY%20D), [Sabina, OH](https://openairdocs.org/faa-place/OH/Sabina), built 1941, S/N 1561

## NTSB investigations (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI76FEK21](https://openairdocs.org/ntsb/CHI76FEK21), Jul 4, 1976: Rearwin 175 (N32383), Rushsylvania, OH, substantial damage
- [NTSB FTW70D0243](https://openairdocs.org/ntsb/FTW70D0243), Sep 19, 1969: Rearwin 175 (N34834), Portland, TX, substantial damage

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19760704019309A](https://openairdocs.org/incident/19760704019309A), Jul 4, 1976: Comwth REWN175 (N32383), Rushsylvania, OH, Substantial damage

## Service difficulty reports (51, newest 50)

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

- [SDR 2016FA0000034](https://openairdocs.org/sdr/2016FA0000034), Jan 28, 2016: ANGLE. CRACKED. BELIEVE OVER TIGHTING OF BOLT CAUSED STRAIN ON PART MOUNTED IN HIGH VIBRATION AREA.
- [SDR 2013FA0000396](https://openairdocs.org/sdr/2013FA0000396), Jul 8, 2013: CONTACT. CORRODED. DURING INSPECTION OF ELT, FOUND TWO OF THE FOUR BATTERY CONTACTS CORRODED, THERE WAS NO EVIDENCE OF A LEAKING BATTERY. ELT WAS STILL FUNCTIONAL.
- [SDR 2013FA0000395](https://openairdocs.org/sdr/2013FA0000395), Jul 8, 2013: CYLINDER HEAD. CRACKED. WHILE PERFORMING A COMPRESSION TEST NR 5 CYLINDER HAD AN AIR LEAK, SPRAYED SOAPY SOLUTION ON CYLINDER AND OBSERVED BUBBLES COMING FROM A CRACK BETWEEN COOLING F
- [SDR 2013FA0000394](https://openairdocs.org/sdr/2013FA0000394), Jul 5, 2013: CYLINDER HEAD. CRACKED. NR 3 CYLINDER FAILED COMPRESSION TEST DURING ANNUAL INSPECTION. BORESCOPED CYLINDER AND COULD NOT FIND OBVIOUS PROBLEM. SQUIRTED SOAPY WATER SOLUTION ON CYLINDE
- [SDR 2009FA0000392](https://openairdocs.org/sdr/2009FA0000392), May 11, 2009: FLANGE. WARPED. WHILE LOOKING FOR THE SOURCE OF AN OIL LEAK FOUND THE TACHOMETER DRIVE ADAPTER HOUSING FLANGE WARPED AND CRACKED.
- [SDR 2008FA0000756](https://openairdocs.org/sdr/2008FA0000756), Nov 12, 2008: MOUNT. CRACKED. DURING INSP, MECHANIC FOUND THE LT UPPER ENGINE MOUNT BRACKET, PN 0513132-11, CRACKED ALL THE WAY THROUGH. CRACK WAS AT THE OUTER RADIUS OF THE WASHER.
- [SDR 2008FA0000281](https://openairdocs.org/sdr/2008FA0000281), Apr 16, 2008: MOUNT. CRACKED. INSP FOUND UPPER LT BRACKET (0513132-11) WITH A SMALL CRACK ORIGINATING FROM THE LOWER EDGE OF THE ENGINE MOUNT BOLT WASHER. ONLY A SMALL BEND LINE WAS VISIBLE 
- [SDR RDA092407](https://openairdocs.org/sdr/RDA092407), Sep 24, 2007: TRANSMITTER. CRACKED. WHILE CALIBRATING THE FUEL QUANTITY SYSTEM THE LT FUEL GAUGE WOULD SHOW AN INCREASE IN QUANTITY THEN START DECREASING. WHILE TROUBLESHOOTING THE LT TANK FUEL QU
- [SDR RDA113006](https://openairdocs.org/sdr/RDA113006), Nov 30, 2006: AMMETER. FAILED. AEROSPACE LOGIC VA-100 DIGITAL VOLT/AMMETER AMP FUNCTION FAILED. AMP READING VARIES FROM -12 TO -18.5 AMPS, THIS INDICATION IS PRESENT WITH NO LOAD ON SYSTEM OR
- [SDR 2006FA0000599](https://openairdocs.org/sdr/2006FA0000599), Jun 13, 2006: GUSSET. CRACKED. FOUND 2 OF 4 ENGINE MOUNT TO FIREWALL BRACKETS CRACKED. BRACKETS ARE LOCATED IN CABIN, ATTACHING AC SKIN TO FIREWALL. POSSIBLE CAUSE OF CRACKEING MAY BE OVERTOR
- [SDR 2006FA0000598](https://openairdocs.org/sdr/2006FA0000598), Jun 13, 2006: GUSSET. CRACKED. FOUND 2 OF 4 ENGINE MOUNT TO FIREWALL BRACKETS CRACKED, BRACKETS ARE LOCATED IN CABIN, ATTACHING AC SKIN TO FIREWALL. POSSIBLE CAUSE OF CRACKING MAY BE OVERTORQ
- [SDR 2006FA0000597](https://openairdocs.org/sdr/2006FA0000597), Jun 13, 2006: GUSSET. CRACKED. FOUND 2 OF 4 ENGINE MOUNT TO FIREWALL BRACKETS CRACKED, BRACELETS ARE LOCATED IN CABIN, ATTACHING AC SKIN TO FIREWALL. POSSIBLE CAUSE OF CRACKING MAY BE OVERTOR
- [SDR 2006FA0000561](https://openairdocs.org/sdr/2006FA0000561), May 31, 2006: ATTACH BRACKET. CRACKED. ENGINE MOUNT ATTACHMENT BRACKET WITH CRACKS AT THE 12 AND 6 O`CLOCK POSITION. CRACKS ON IB AND OB SIDES OF THE AN960-616 WASHER. NORMAL FLIGHT CONDITIONS UNDER 
- [SDR 2006FA0000560](https://openairdocs.org/sdr/2006FA0000560), Apr 30, 2006: ATTACH BRACKET. BROKEN. ENGINE MOUNT ATTACHMENT BRACKET BROKEN AND WITH CRACKS AT THE 12 AND 6 O`CLOCK POSITION. CRACKS ON IB AND OB SIDES OF THE AN960-616 WASHER. NORMAL FLIGHT CONDIT
- [SDR 2006FA0000559](https://openairdocs.org/sdr/2006FA0000559), Apr 30, 2006: ATTACH BRACKET. CRACKED. ENGINE MOUNT ATTACHMENT BRACKET BROKEN AND WITH CRACKS AT THE 12 AND 6 O`CLOCK POSITION. CRACKS ON IB AND OB SIDES OF THE AN960-616 WASHER. NORMAL FLIGHT CONDIT
- [SDR 2006FA0000399](https://openairdocs.org/sdr/2006FA0000399), Mar 27, 2006: BRACKET. CRACKED. FOUND THE UPPER RIGHT ENGINE MOUNT BRACKET, P/N 0513132-11 IN THE 0513132-4 UPPER ENGINE MOUNT STRINGER, CRACKED. INSPECTION WAS ACCOMPLISHED DUE TO NUMEROUS RE
- [SDR 2006FA0000398](https://openairdocs.org/sdr/2006FA0000398), Mar 27, 2006: BRACKET. CRACKED. FOUND THE UPPER LEFT ENGINE MOUNT BRACKET, P/N 0513132-11 IN THE 0513132-3 UPPER ENGINE MOUNT STRINGER CRACKED THROUGH THE BRACKET AROUND THE RADIUS OF THE WASH
- [SDR 2006FA0000318](https://openairdocs.org/sdr/2006FA0000318), Feb 27, 2006: BRACKET. CRACKED. FOUND THE LEFT UPPER ENGINE MOUNT BRACKET P/N 0513132-11 CRACKED THROUGH AROUND THE WASHER. BRACKET IS LOCATED AT THE FRONT OF THE 0513132-3 ENGINE MOUNT STRING
- [SDR 2006FA0000313](https://openairdocs.org/sdr/2006FA0000313), Feb 26, 2006: BRACKET. CRACKED. DURING VISUAL INSPECTION OF UPPER ENGINE MOUNT BRACKETS IN THE UPPER ENGINE MOUNT STRINGER ASSEMBLIES, FOUND THE L/H 0513132-11 BRACKET CRACKED. INSPECTION WAS 
- [SDR 2006FA0000157](https://openairdocs.org/sdr/2006FA0000157), Feb 22, 2006: BRACKET. BENT. A REPLACEMENT 0513132-11 ENGINE MOUNT BRACKET WAS ORDERED TO REPLACE ONE FOUND CRACKED. THE JOGGLED FLANGE WAS INCORRECTLY FORMED. THE FLANGE WAS BENT OUTWARD T
- [SDR 2006FA0000250](https://openairdocs.org/sdr/2006FA0000250), Feb 22, 2006: BRACKET. CRACKED. INSP 0513132-11, MOUNT BRACKET WAS FOUND TO BE CRACKED. CRACK RAN VERT THROUGH BRACKET AROUND OUTER RADIUS OF AN960-616 WASHER ON UPPER ENG MOUNT BOLT. INSP WAS
- [SDR 2006FA0000156](https://openairdocs.org/sdr/2006FA0000156), Feb 13, 2006: ATTACH BRACKET. CRACKED. FOUND THE LT UPPER ENGINE MOUNT ATTACHMENT BRACKET CRACKED THROUGH ON THE IB SIDE. CRACK APPEARS TO HAVE ORIGINATED AT OUTER RADIUS OF WASHER THEN PROGRESSED UP
- [SDR 2006FA0000134](https://openairdocs.org/sdr/2006FA0000134), Jan 31, 2006: ATTACH BRACKET. BROKEN. THE AC EXPERIENCED A HARD LANDING. DURING THE LANDING THE 2 TOP ENGINE MOUNT ATTACH BRACKETS FAILED BEHIND THE FIREWALL, ALLOWING THE TOP HALF OF THE FIREWALL T
- [SDR IGL1520050080](https://openairdocs.org/sdr/IGL1520050080), Sep 15, 2005: MUFFLER. DETERIORATED. EXHAUST MUFFLER CRACKED AND DETERIORATED AND WAS NOT DETECTED DUE TO LOCATION UNDER HEAT SHROUD. MUFFLER IS PART OF ENGINE CONVERSION STC NR SA777CE, KIT NR 740
- [SDR 2005FA0001237](https://openairdocs.org/sdr/2005FA0001237), Aug 30, 2005: CONNECTING ROD. BROKEN. NR 3 CONNECTING ROD PENETRATED CASE. ENGINE TSO 848 HRS. LAST ENGINE O/H 06/10/1964 OR 41 YEARS AGO. MANUFACTURER RECOMMENDS 12 YEARS IAW SIL 98-9.
- [SDR 2005FA0001395](https://openairdocs.org/sdr/2005FA0001395), Aug 22, 2005: CYLINDER. FAILED. CYLINDER WAS REBUILT 5/12/05 USING CURRENT PRODUCTION MFG EXHAUST VALVE AND GUIDE. THE EXHAUST VALVE STRUCK (17 HOURS IN SERVICE) RESULTING IN A BROKEN EXHAUST 
- [SDR 2004FA0000752](https://openairdocs.org/sdr/2004FA0000752), Sep 3, 2004: BRACKET. CRACKED. THE FUSELAGE UPPER ENGINE MOUNT BRACKETS WERE DISCOVERED TO BE CRACKED AT MOUNTING HOLES. PN 0513132-11 FOR UPPER LT AND UPPER RT. NEW REPLACEMENT PARTS WERE NO
- [SDR CA031021005](https://openairdocs.org/sdr/CA031021005), May 16, 2003: SPAR. BROKEN. (CAN) DISCOVERED A BREAK IN THE STABILIZER SPAR DURING AN ANNUAL INSPECTION.
- [SDR 2002FA0001258](https://openairdocs.org/sdr/2002FA0001258), Oct 10, 2002: FORK. CRACKED. OVERHAUL WAS BEING ACCOMPLISHED DUE TO HIGH CALENDER TIME, LOW HOURS SINCE NEW. DURING MAGNETIC PARTICAL INSPECTION, MULTIPLE LARGE CRACKS WERE DISCOVERED IN PI
- [SDR 2002FA0000667](https://openairdocs.org/sdr/2002FA0000667), May 23, 2002: MASTER SWITCH. FAILED. WHILE TAXING FOR DEPARTURE AT TAOS AIRPORT. THE PILOT EXPERIENCED AN AVIONICS MASTER SWITCH FAILURE. UPON SEEING A SMALL AMOUNT OF SMOKE AT THE UPPER AREA OF TH
- [SDR 2001FA0000121](https://openairdocs.org/sdr/2001FA0000121), Jul 11, 2001: WIRE. DEFECTIVE. AIRCRAFT BROUGHT TO BE CLEAN-UP WIRING BEHIND INSTRUMENT PANEL. UPON FURTHER INSPECTION I IMMEDIATELY DISCONNECTED THE SHIPS BATTERY DUE TO THE FACT THE WIRING 
- [SDR 20001018SH001](https://openairdocs.org/sdr/20001018SH001), Aug 31, 2000: FLOAT. CRACKED. RIGHT FRONT STRUT FLOATS CRACKED. (X)
- [SDR 99ZZZX2720](https://openairdocs.org/sdr/99ZZZX2720), Jun 30, 1999: BRACKET. CRACKED. ALL FOUR ENGINE MOUNT ATTACH BRACKETS WERE DESTROYED AND 3 WERE CRACKED WHERE THE ENGINE MOUNT BOLTS PASS THROUGH THE FIREWALL. THIS IS AN ALUMINUM ANGLE THAT T
- [SDR 99ZZZX2719](https://openairdocs.org/sdr/99ZZZX2719), Jun 30, 1999: BRACKET. CRACKED. ALL FOUR ENGINE MOUNT ATTACH BRACKETS WERE DESTROYED AND 3 WERE CRACKED WHERE THE ENGINE MOUNT BOLTS PASS THROUGH THE FIREWALL. THIS IS AN ALUMINUM ANGLE THAT T
- [SDR 99ZZZX2718](https://openairdocs.org/sdr/99ZZZX2718), Jun 30, 1999: BRACKET. CRACKED. ALL FOUR ENGINE MOUNT ATTACH BRACKETS WERE DESTROYED AND 3 WERE CRACKED WHERE THE ENGINE MOUNT BOLTS PASS THROUGH THE FIREWALL. THIS IS AN ALUMINUM ANGLE THAT T
- [SDR 98ZZZX1861](https://openairdocs.org/sdr/98ZZZX1861), Apr 11, 1998: CONNECTING ROD. FAILED. CONNECTING ROD BROKE AT PISTON PIN AREA. REMAINING POSTION OF ROD PUNCHED HOLE IN CRANKCASE, DAMAGED PISTON, AND RESULTED IN ENGINE SHUT DOWN.
- [SDR 98ZZZX1462](https://openairdocs.org/sdr/98ZZZX1462), Mar 19, 1998: BRACKET. CRACKED. LOWER RIGHT FIREWALL ENGINE MOUNT BRACKET FOUND CRACKED INTO TWO PIECES. UPPER LEFT AND RIGHT BRACKETS FOUND TO HAVE SIMILAR CRACKS, BUT NOT AS EXTENSIVE. AREA 
- [SDR 98ZZZX1461](https://openairdocs.org/sdr/98ZZZX1461), Mar 19, 1998: BRACKET. CRACKED. LOWER RIGHT FIREWALL ENGINE MOUNT BRACKET FOUND CRACKED INTO TWO PIECES. UPPER LEFT AND RIGHT BRACKETS FOUND TO HAVE SIMILAR CRACKS, BUT NOT AS EXTENSIVE. AREA 
- [SDR 97ZZZX5125](https://openairdocs.org/sdr/97ZZZX5125), Oct 17, 1997: BRACKET. CRACKED. ALL FOUR ENGINE MOUNT BRACKETS ON THE FORWARD END OF THE ENGINE MOUNT STRINGERS WERE CRACKED AND HOLE AREA BENT OUT. THIS AREA BULGED OUT AROUND BOLT HOLE. AIRC
- [SDR 97ZZZX5124](https://openairdocs.org/sdr/97ZZZX5124), Oct 17, 1997: BRACKET. CRACKED. ALL FOUR ENGINE MOUNT BRACKETS ON THE FORWARD END OF THE ENGINE MOUNT STRINGERS WERE CRACKED AND HOLE AREA BENT OUT. THIS AREA BULGED OUT AROUND BOLT HOLE. AIRC
- [SDR 97ZZZX5123](https://openairdocs.org/sdr/97ZZZX5123), Oct 17, 1997: BRACKET. CRACKED. ALL FOUR ENGINE MOUNT BRACKETS ON THE FORWARD END OF THE ENGINE MOUNT STRINGERS WERE CRACKED AND HOLE AREA BENT OUT. THIS AREA BULGED OUT AROUND BOLT HOLE. AIRC
- [SDR 98ZZZX224](https://openairdocs.org/sdr/98ZZZX224), Oct 3, 1997: ROCKER BOSS. FAILED. DURING ANNUAL INSPECTION, NR 4 CYLINDER COMP AT 50/80 WITH AIR NOISE IN EXHAUST STACK. ON REMOVAL OF ROCKER BOX COVER, THE TOP HALF OF THE LEFT BOSS CAME OUT WI
- [SDR 97ZZZX3410](https://openairdocs.org/sdr/97ZZZX3410), Jul 9, 1997: MOUNT. CRACKED. ACFT OWNER REPORTED THE COWL DID NOT FIT RIGHT. UPON EXAMINATION, DETERMINED THE RT STRINGER ASSY, ENGINE MOUNT UPPER, HAD FAILED AT THE POINT WHERE THE UPPER R
- [SDR 97ZZZX3409](https://openairdocs.org/sdr/97ZZZX3409), Jul 9, 1997: MOUNT. FAILED. ACFT OWNER REPORTED THE COWL DID NOT FIT RIGHT. UPON EXAMINATION, DETERMINED THE RT STRINGER ASSY, ENGINE MOUNT UPPER, HAD FAILED AT THE POINT WHERE THE UPPER R
- [SDR 97ZZZX625](https://openairdocs.org/sdr/97ZZZX625), Jan 14, 1997: SPAR CAP. CORRODED. AFTER REMOVING FUEL TANK COVER PANELS TO REPLACE SOME GASKETS DURING AN ANNUAL INSP, INTERGRANULAR CORROSION WAS FOUND ON SPAR CAP FWD OF THE RT TANK. WING LEAD
- [SDR 96ZZZX5493](https://openairdocs.org/sdr/96ZZZX5493), Oct 2, 1996: BRACKET. FAILED. ENG MOUNT BRACKET LOCATED AT UPPER RT SIDE FUSELAGE IMMEDIATELY AFT OF FIREWALL. NUT AND WASHER OF ENGINE MOUNT BOLT PULLED THROUGH BRACKET, BOWED FIREWALL, AND
- [SDR 96ZZZX1790](https://openairdocs.org/sdr/96ZZZX1790), Mar 6, 1996: SPRING. BROKEN. ROUGH ENGINE OPERATION ABOVE 2,500 RPM'S. FOUND NR 4 CYLINDER OUTER EXHAUST VALVE SPRING BROKEN.
- [SDR CA951123103](https://openairdocs.org/sdr/CA951123103), Oct 20, 1995: BRACKET. BROKEN. (CAN)BRACKET AT THE RIGHT INBOARD FLAP TRACK CRACKED AT BOTH RIVETS. BRACKET DROPPED DOWN AND PREVENTED THE FLAPS FROM RETRACTING.
- [SDR 95ZZZX4271](https://openairdocs.org/sdr/95ZZZX4271), Jul 27, 1995: GASKET. WRONG PART. FOLLOWING ENGINE OVERHAUL, CARBURETOR WAS RE-INSTALLED TO OIL SUMP USING O-RING SUPPLIED IN KIT NR 627372-A1, PAGE 25 OF GO-300 PARTS MANUAL, FORM X30020. CARBU
- [SDR 96ZZZX5210](https://openairdocs.org/sdr/96ZZZX5210), Jun 8, 1995: CYLINDER. FAILED. INTAKE SIDE ROCKER SHAFT BOSS BROKE. SHAFT BUSHINGS HAD BEEN INSTALLED.

All 51: https://openairdocs.org/model/rearwin-175/reports.md

## STCs that may be installed (OpenAirDocs) (20)

Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [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 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 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 SA905GL](https://openairdocs.org/stc/SA905GL): Superseded by STC SA01944CH. Modify airplane to fly on unleaded automotive gasoline, 87 minimum antiknock index. EAA Aviation Foundation
- [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 SA167CH](https://openairdocs.org/stc/SA167CH): Surrendered and incorporated into STC SA00478CH. Cooper Aviation Supply Company, 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 SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SA4-1210](https://openairdocs.org/stc/SA4-1210): Installation of Eonnex cover on aircraft surfaces. Ceconite, 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
- [STC SA798EA](https://openairdocs.org/stc/SA798EA): Installation of Monitair exhaust gas combustion monitor kit. Rosemount Engineering Co
- [STC SA4-1208](https://openairdocs.org/stc/SA4-1208): Ceconite covering of complete aircraft. Cooper Engineering Corporation

## The same model under other registry codes

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

- [Cessna 175](https://openairdocs.org/model/cessna-175): 536 registered aircraft, registry code 2072502
- [Commonwealth REARWIN 175](https://openairdocs.org/model/commonwealth-rearwin-175): 3 registered aircraft, registry code 2370404

---
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.