# Hughes 269A-1

- Type: Aircraft model (FAA registry)
- Registry code: 4470404
- Manufacturer (registry): HUGHES
- Model: 269A-1
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Reciprocating
- Seats: 2
- Weight class: Up to 12,499 lb
- Cruise speed: 65 mph
- Certification: Type certificated
- Data sheet: [TCDS 4H12](https://openairdocs.org/tcds/4H12) (OpenAirDocs)
- Holder: Schweizer RSG LLC
- Registered aircraft: 5
- Page: https://openairdocs.org/model/hughes-269a-1

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 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023
- [AD 2017-14-06](https://openairdocs.org/ad/2017-14-06): Main Rotor Drive System · Sikorsky 269A, 269A-1, 269B and 3 more. Effective Aug 25, 2017
- [AD 2015-23-01](https://openairdocs.org/ad/2015-23-01): Tail Rotor Drive · Sikorsky 269A, 269A-1, 269B and 3 more. Effective Dec 15, 2015
- [AD 2011-12-16](https://openairdocs.org/ad/2011-12-16): Rotorcraft Tailboom · Schweizer 269A, 269A-1, 269B and 2 more. Effective Jul 21, 2011
- [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006
- [AD 2003-13-15 R1](https://openairdocs.org/ad/2003-13-15-R1): Aft cluster fittings · Schweizer 269A, 269A-1, 269B and 1 more. Effective Aug 10, 2004
- [AD 2000-16-05](https://openairdocs.org/ad/2000-16-05): Tail Rotor Swashplate Shaft · Schweizer 269A, 269A-1, 269B and 3 more. Effective Sep 19, 2000
- [AD 98-18-11](https://openairdocs.org/ad/98-18-11): Main Rotor Blade · Schweizer 269A, 269A-1, 269B and 2 more. Effective Oct 7, 1998
- [AD 97-23-06](https://openairdocs.org/ad/97-23-06): Ring Gear Teeth Inspection · Schweizer 269A, 269A-1, 269B and 1 more. Effective Dec 10, 1997
- [AD 97-05-06](https://openairdocs.org/ad/97-05-06): Main Rotor Thrust Bearing · Schweizer 269A, 269A-1 and 269B. Effective Apr 7, 1997
- [AD 95-21-02](https://openairdocs.org/ad/95-21-02): Main Rotor Drive Shaft · Schweizer 269A, 269A-1, 269B and 1 more. Effective Nov 17, 1995
- [AD 95-03-12](https://openairdocs.org/ad/95-03-12): Clutch Control Spring Assembly · Schweizer 269A, 269A-1, 269B and 1 more. Effective Mar 1, 1995
- [AD 94-16-04](https://openairdocs.org/ad/94-16-04): Tail Rotor Pedal support Structure · Schweizer 269A, 269A-1, 269B and 1 more. Effective Oct 5, 1994
- [AD 94-12-06](https://openairdocs.org/ad/94-12-06): Lower Pulley Bearings · Schweizer 269A, 269A-1, 269B and 1 more. Effective Sep 19, 1994
- [AD 94-13-04](https://openairdocs.org/ad/94-13-04): Clutch Control Spring Assembly · Schweizer 269A, 269A-1, 269B and 1 more. Effective Sep 1, 1994
- [AD 93-21-03](https://openairdocs.org/ad/93-21-03): Magnesium Tailboom Fitting · Schweizer 269A, 269A-1 and 269B. Effective Dec 17, 1993
- [AD 93-05-11](https://openairdocs.org/ad/93-05-11): Fuel Pump Drain Tube Assembly · Schweizer 269A, 269A-1, 269B and 1 more. Effective May 25, 1993
- [AD 89-20-03 R1](https://openairdocs.org/ad/89-20-03-R1): Tail Rotor Blades · Schweizer 269A, 269A-1, 269B and 1 more. Effective Feb 22, 1991
- [AD 90-06-10](https://openairdocs.org/ad/90-06-10): Throttle Cable Assembly · Schweizer 269A, 269A-1, 269B and 1 more. Effective Apr 6, 1990
- [AD 88-17-04](https://openairdocs.org/ad/88-17-04): Aft Cluster Fittings · Schweizer 269A, 269A-1, 269B and 1 more. Effective Aug 19, 1988
- [AD 82-15-01 R1](https://openairdocs.org/ad/82-15-01-R1): Main Transmission · Schweizer 269A, 269A-1, 269B and 1 more. Effective Oct 4, 1982
- [AD 82-15-03](https://openairdocs.org/ad/82-15-03): Rotor System · Schweizer 269A, 269A-1, 269B and 1 more. Effective Jul 16, 1982
- [AD 81-17-01](https://openairdocs.org/ad/81-17-01): Starting Vibrator Assemblies · Bendix Starting Vibrator Assemblies, B-2, B-2A and 49 more. Effective Aug 13, 1981
- [AD 79-23-03 R1](https://openairdocs.org/ad/79-23-03-R1): Tail Rotor Blades · Schweizer 269A, 269A-1, 269B and 1 more. Effective Nov 19, 1979
- [AD 78-26-04](https://openairdocs.org/ad/78-26-04): Tail Rotor Hub Assembly · Schweizer 269A, 269A-1, 269B and 6 more. Effective Dec 27, 1978
- [AD 78-25-04](https://openairdocs.org/ad/78-25-04): Pinion Assemblies · Schweizer 269A, 269A-1, 269B and 1 more. Effective Dec 18, 1978
- [AD 78-02-02](https://openairdocs.org/ad/78-02-02): Tail Rotor Control Pedals · Schweizer 269A, 269A-1, 269B and 1 more. Effective Jan 24, 1978
- [AD 77-23-08](https://openairdocs.org/ad/77-23-08): Cracks in Main Rotor Blades · Schweizer 269A, 269A-1 and 269B. Effective Dec 27, 1977
- [AD 77-07-01](https://openairdocs.org/ad/77-07-01): Clutch Actuator · Schweizer 269A, 269A-1, 269B and 1 more. Effective Apr 4, 1977
- [AD 76-10-02](https://openairdocs.org/ad/76-10-02): Lateral control · Schweizer 269A, 269A-1, 269B and 1 more. Effective May 21, 1976
- [AD 75-15-02](https://openairdocs.org/ad/75-15-02): Throttle and Engine Power Control · Schweizer 269A, 269A-1 and 269B. Effective Jul 15, 1975
- [AD 74-21-04](https://openairdocs.org/ad/74-21-04): Canopy Slats · Schweizer 269A, 269A-1, 269B and 1 more. Effective Apr 4, 1975
- [AD 75-08-12](https://openairdocs.org/ad/75-08-12): Actuator and Cover · Schweizer 269A, 269A-1, 269B and 1 more. Effective Mar 7, 1975
- [AD 71-20-05](https://openairdocs.org/ad/71-20-05): Idler Pulley Bearings · Schweizer 269A, 269A-1 and 269B. Effective Dec 18, 1971
- [AD 70-08-01](https://openairdocs.org/ad/70-08-01): Flapping Hinge Bolts · Schweizer 269A, 269A-1 and 269B. Effective Apr 14, 1970
- [AD 70-01-06](https://openairdocs.org/ad/70-01-06): Lateral pitch idler bell crank · Schweizer 269A, 269A-1 and 269B. Effective Jan 17, 1970
- [AD 69-04-03](https://openairdocs.org/ad/69-04-03): Rotor Blade · Schweizer 269A, 269A-1 and 269B. Effective Mar 22, 1969
- [AD 68-26-01](https://openairdocs.org/ad/68-26-01): Lower Coupling Drive Shaft · Schweizer 269A, 269A-1 and 269B. Effective Dec 21, 1968
- [AD 64-28-02](https://openairdocs.org/ad/64-28-02): Main Rotor Blade Flapping Hinge Bearing · Schweizer 269A, 269A-1 and 269B. Effective Jul 6, 1968
- [AD 67-21-01](https://openairdocs.org/ad/67-21-01): Air Scoop · Schweizer 269A, 269A-1 and 269B. Effective Jul 3, 1967
- [AD 67-11-03](https://openairdocs.org/ad/67-11-03): Main Rotor Gear Drive · Schweizer 269A, 269A-1 and 269B. Effective Apr 7, 1967
- [AD 66-03-02](https://openairdocs.org/ad/66-03-02): Electrical System · Schweizer 269A, 269A-1 and 269B. Effective Jan 14, 1966
- [AD 64-06-04](https://openairdocs.org/ad/64-06-04): Lower Coupling Drive Shaft · Schweizer 269A, 269A-1 and 269B. Effective Mar 18, 1964
- [AD 69-21-01](https://openairdocs.org/ad/69-21-01): Failure of Input Pinion Shaft · Schweizer 269A, 269A-1, 269B and 4 more

Historical (superseded or no longer in force):

- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021
- [AD 2011-01-52](https://openairdocs.org/ad/2011-01-52) (historical): Rotorcraft Tailboom · Schweizer 269A, 269A-1, 269B and 2 more
- [AD 2003-13-15](https://openairdocs.org/ad/2003-13-15) (historical): Tailboom Support Strut or Lug on Cluster Fitting · Schweizer 269A, 269A-1, 269B and 1 more. Effective Aug 12, 2003
- [AD 2001-25-52](https://openairdocs.org/ad/2001-25-52) (historical): Strut Clevis Lug on Center Frame Aft Cluster Fitting · Schweizer 269A, 269A-1, 269B and 1 more. Effective May 8, 2002
- [AD 99-17-10](https://openairdocs.org/ad/99-17-10) (historical): Shaft · Schweizer 269A, 269A-1, 269B and 3 more. Effective Sep 2, 1999
- [AD 93-17-13](https://openairdocs.org/ad/93-17-13) (historical): Lower Coupling Drive Shaft · Schweizer 269A, 269A-1, 269B and 1 more. Effective Oct 20, 1993
- [AD 76-18-01](https://openairdocs.org/ad/76-18-01) (historical): Tail boom support strut · Schweizer 269A, 269A-1, 269B and 3 more. Effective Sep 7, 1976

## Information bulletins (advisory) (1)

- [SAIB SW-09-44](https://openairdocs.org/saib/SW-09-44): Cabin door. Issued Jul 28, 2009

## Registered aircraft (5)

- [N8794F](https://openairdocs.org/aircraft/N8794F): [Mundell Terry D Trustee](https://openairdocs.org/faa-owner/MUNDELL%20TERRY%20D%20TRUSTEE), [Rosston, OK](https://openairdocs.org/faa-place/OK/Rosston), built 1962, S/N 103-0002
- [N8938F](https://openairdocs.org/aircraft/N8938F): [Southern Cross Aviation Inc](https://openairdocs.org/faa-owner/SOUTHERN%20CROSS%20AVIATION%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1964, S/N 44-0009
- [N8944F](https://openairdocs.org/aircraft/N8944F): [Fitzgerald Brian B](https://openairdocs.org/faa-owner/FITZGERALD%20BRIAN%20B), [Gettysburg, PA](https://openairdocs.org/faa-place/PA/Gettysburg), S/N 15-0021
- [N8948F](https://openairdocs.org/aircraft/N8948F): [O Reilly Thomas P](https://openairdocs.org/faa-owner/O%20REILLY%20THOMAS%20P), [Oscoda, MI](https://openairdocs.org/faa-place/MI/Oscoda), built 1965, S/N 15-0024
- [N8950F](https://openairdocs.org/aircraft/N8950F): [Aloft](https://openairdocs.org/faa-owner/ALOFT), [Haiku, HI](https://openairdocs.org/faa-place/HI/Haiku), S/N 15-0026

## NTSB investigations (24)

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 ATL04TA116](https://openairdocs.org/ntsb/ATL04TA116), May 14, 2004: Hughes 269A (N115ES), Louisburg, NC, substantial damage, 1 fatal. Probable cause: Fatigue failure of the tailboom saddle fitting which resulted in a loss of aircraft control. Also causal was inadequate maintenance due to non-compliance to an airworthiness directive requiring…
- [NTSB FTW02LA104](https://openairdocs.org/ntsb/FTW02LA104), Mar 27, 2002: Hughes 269A-1 (N8942F), Fort Collins, CO, substantial damage. Probable cause: the flight instructor's failure to maintain control of the helicopter while hovering. Contributing factors were the tailwind and gusty wind conditions.
- [NTSB FTW91LA150](https://openairdocs.org/ntsb/FTW91LA150), Aug 18, 1991: Hughes 269A-1 (N65372), No. Little Rock, AR, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN MAIN ROTOR RPM, HIS DELAYED FLARE, AND THE IMPROPER TOUCHDOWN.
- [NTSB SEA91LA130](https://openairdocs.org/ntsb/SEA91LA130), Jun 13, 1991: Hughes 269A-1 (N8944F), Canby, OR, substantial damage. Probable cause: A HARD LANDING AFTER AN UNDETERMINED LOSS OF POWER. FACTORS INCLUDE AN EXCESSIVE EMERGENCY DESCENT RATE.
- [NTSB FTW88LA040](https://openairdocs.org/ntsb/FTW88LA040), Dec 17, 1987: Hughes 269A-1 (N8945F), Eldorado, TX, substantial damage
- [NTSB CHI85LA280](https://openairdocs.org/ntsb/CHI85LA280), Jul 10, 1985: Hughes 269A1A (N8951F), Coal Valley, IL, substantial damage
- [NTSB ATL81DLA13](https://openairdocs.org/ntsb/ATL81DLA13), Aug 15, 1981: Hughes 269A-1 (N8935F), Sale City, GA, substantial damage
- [NTSB FTW79FQG27](https://openairdocs.org/ntsb/FTW79FQG27), Apr 5, 1979: Hughes 269A-1 (N8960F), Slaton, TX, destroyed
- [NTSB IAD78FLQ34](https://openairdocs.org/ntsb/IAD78FLQ34), Sep 18, 1978: Hughes 269A (N8938F), Lexington, KY, substantial damage
- [NTSB IAD78DLQ12](https://openairdocs.org/ntsb/IAD78DLQ12), Mar 14, 1978: Hughes 269A (N8938F), Lexington, KY, substantial damage
- [NTSB DEN76DQA57](https://openairdocs.org/ntsb/DEN76DQA57), Aug 14, 1976: Hughes 269A-1 (N8942F), Milagro, NM, substantial damage
- [NTSB MKC76DCQ20](https://openairdocs.org/ntsb/MKC76DCQ20), Oct 14, 1975: Hughes 269A (N8960F), Wichita, KS, substantial damage
- [NTSB MIA73FLG01](https://openairdocs.org/ntsb/MIA73FLG01-117884), Jul 2, 1972: Hughes 269A (N8947F), Gaston, SC, substantial damage
- [NTSB MIA71FLG09](https://openairdocs.org/ntsb/MIA71FLG09), Aug 30, 1970: Hughes 269A (N8947F), Lexington, SC, substantial damage
- [NTSB FTW70F0345](https://openairdocs.org/ntsb/FTW70F0345), Dec 11, 1969: Hughes 269A (N8945F), Aiken, TX, destroyed
- [NTSB MIA70F0127](https://openairdocs.org/ntsb/MIA70F0127), Jul 14, 1969: Hughes 269-A (N8935F), Cochran, GA, substantial damage
- [NTSB SEA69F0165](https://openairdocs.org/ntsb/SEA69F0165), Dec 28, 1968: Hughes 269A (N8780F), Renton, WA, substantial damage
- [NTSB MIA69F0153](https://openairdocs.org/ntsb/MIA69F0153), Aug 2, 1968: Hughes 269A (N8935F), Saluda, SC, substantial damage
- [NTSB CHI68F0768](https://openairdocs.org/ntsb/CHI68F0768), May 18, 1968: Hughes 269B (N8940F), West Dundee, IL, destroyed
- [NTSB LAX67D0377](https://openairdocs.org/ntsb/LAX67D0377), Apr 4, 1967: Hughes 269A (N8960F), Mesa, AZ, substantial damage
- [NTSB NYC67A0123](https://openairdocs.org/ntsb/NYC67A0123), Feb 27, 1967: Hughes 269A-1 (N8950F), Rutherford, NJ, destroyed
- [NTSB FTW67A0021](https://openairdocs.org/ntsb/FTW67A0021), Aug 2, 1966: Hughes 269A (N8933F), Wylie, TX, substantial damage
- [NTSB CHI67A0017](https://openairdocs.org/ntsb/CHI67A0017), Jul 28, 1966: Hughes 269A (N8940F), Joliet, IL, substantial damage
- [NTSB CHI66A0010](https://openairdocs.org/ntsb/CHI66A0010), Jul 26, 1965: Hughes 269A-1 (N8938F), Lynch, KY, substantial damage

## FAA accident and incident reports (14)

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 20040514007609A](https://openairdocs.org/incident/20040514007609A), May 14, 2004: Hughes 269A1 (N115ES), Louisburg, NC, Destroyed, 1 fatal. (-23) Aircraft was being operated by the franklin county sheriff's department taking part in a drug eradication program. Flight was one-hour into a two-hour…
- [Accident 20020327005599A](https://openairdocs.org/incident/20020327005599A), Mar 27, 2002: Hughes 269A1 (N8942F), Fort Collins, CO, No damage. (-23)Aircraft lifted off the pad under little or no wind conditions and headed toward the runway for takeoff when the wind gusted and caused the aircraft to…
- [Accident 19910818035679A](https://openairdocs.org/incident/19910818035679A), Aug 18, 1991: Hughes 269A1 (N65372), Newport, AR, Substantial damage. CFI was demonstrating a practice autorotation to landing. Made firm landing, rotors struck tailboom.
- [Accident 19910613021769A](https://openairdocs.org/incident/19910613021769A), Jun 13, 1991: Hughes 269A1 (N8944F), Canby, OR, Substantial damage. Report partial power loss spraying trees. Rotor speed decay dropped to ground. Reported no mechanical. None found.
- [Accident 19871217070919A](https://openairdocs.org/incident/19871217070919A), Dec 17, 1987: Hughes 269A1 (N8945F), Eldorado, TX, Substantial damage. Tried toland in a small open space in trees. Main rotors struck a tree causing uncontrolled ground collision.
- [Accident 19850710075909A](https://openairdocs.org/incident/19850710075909A), Jul 10, 1985: Hughes 269A1 (N8951F), Coal Valley, IL, Substantial damage. During spray turn, aircraft struck corn crop and lost directional control. Landed hard. Spark plugs fouled.
- [Incident 19840108010389I](https://openairdocs.org/incident/19840108010389I), Jan 8, 1984: Hughes 269A1 (N8940F), Hobson, MT, Minor damage. Caught a skid on the ground during hover practice. Skid broke and caused rotor blades to strike the ground.
- [Accident 19810815049759A](https://openairdocs.org/incident/19810815049759A), Aug 15, 1981: Hughes 269A (N8935F), Sale City, GA, Substantial damage. Helicopter spun out of control and crashed during swath run. Tail rotor blade failure.
- [Accident 19790405009059A](https://openairdocs.org/incident/19790405009059A), Apr 5, 1979: Hughes 269A1 (N8960F), Slaton, TX, Destroyed. Pilots have no memory of events leading up to the accident.
- [Accident 19780918030459A](https://openairdocs.org/incident/19780918030459A), Sep 18, 1978: Hughes 269A1 (N8938F), Lexington, KY, Substantial damage. Ldg on soft wet gnd. Slid to sudden stop.m/r hit tailboom. Demo auto t ldg.
- [Accident 19780314003749A](https://openairdocs.org/incident/19780314003749A), Mar 14, 1978: Hughes 269A1 (N8938F), Lexington, KY, Substantial damage. Ldg on soft wet gnd. Slid to sudden stop.m/r hit tailboom. Demo aut ldg.
- [Accident 19770328006909A](https://openairdocs.org/incident/19770328006909A), Mar 28, 1977: Hughes 269C (N65372), TX, Substantial damage
- [Accident 19760804024659A](https://openairdocs.org/incident/19760804024659A), Aug 4, 1976: Hughes 269A1 (N8942F), Milagro, NM, Substantial damage. Pilot elected to make a landing at a service station beside highway. Hit powerline.
- [Accident 19751014033819A](https://openairdocs.org/incident/19751014033819A), Oct 14, 1975: Hughes 269A1 (N8960F), Wichita, KS, Substantial damage. Tail boom end fitting failed from fatigue. Failure originated fm surface scratch.

## STCs that may be installed (OpenAirDocs) (76, first 50)

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 SA800EA](https://openairdocs.org/stc/SA800EA): Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies. Whelen Aerospace Technologies
- [STC SR00006DE](https://openairdocs.org/stc/SR00006DE): Installation of Inframetics IRTV-445G infrared imaging system. Dart Aerospace Company
- [STC SH2726NM](https://openairdocs.org/stc/SH2726NM): Installation of a cabin heater. Dart Aerospace USA Inc
- [STC SH5248NM](https://openairdocs.org/stc/SH5248NM): Installation of external pod, camera mount, and 12 volt power provision. Dart Aerospace USA Inc
- [STC SH4036NM](https://openairdocs.org/stc/SH4036NM): Installation of door actuators. Dart Aerospace USA Inc
- [STC SR00038DE](https://openairdocs.org/stc/SR00038DE): Installation of supplemental lubrication kit for lower drive shaft. Dart Aerospace USA Inc
- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc
- [STC SA11137SC](https://openairdocs.org/stc/SA11137SC): Installation of Plane-Power ALT-FLX alternator. Hartzell Engine Technologies, LLC
- [STC SR01838AT](https://openairdocs.org/stc/SR01838AT): Installation of Cyclic Friction Release Levers. Thoroughbred Aviation Maintenance Inc. Lists 269 Series
- [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC
- [STC SH7WE](https://openairdocs.org/stc/SH7WE): Fabrication of Precision Helicopters Model 4887 Cargo Rack System. Schweizer RSG LLC
- [STC SH8WE](https://openairdocs.org/stc/SH8WE): Installation of Tote-All luggage/cargo carrier. NOTE: Hughes Lateral Trim Assembly 269/A9935-3 required with this installation. Schweizer RSG LLC
- [STC SA615EA](https://openairdocs.org/stc/SA615EA): Installation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights. Whelen Aerospace Technologies
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SH586EA](https://openairdocs.org/stc/SH586EA): Installation of Hartzell Anti-Overspeed kits (D-3520-1 and D-3520-2). Schweizer RSG LLC
- [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems. J P Instruments
- [STC SR02487AK](https://openairdocs.org/stc/SR02487AK): Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System. ADS-B Technologies, LLC
- [STC SR01802WI](https://openairdocs.org/stc/SR01802WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel per ASTM D7547. Swift Fuels LLC
- [STC SR02470AK](https://openairdocs.org/stc/SR02470AK): Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System. ADS-B Technologies, LLC
- [STC SR02471AK](https://openairdocs.org/stc/SR02471AK): Installation of the L-3 Communications NGT -9000/9000R ADS-B System. ADS-B Technologies, LLC
- [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC
- [STC SH1839NM](https://openairdocs.org/stc/SH1839NM): Installation of Skytronics, Part No. 7150T-300-1 Alternators. Hartzell Engine Technologies, LLC
- [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 SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc
- [STC SA4172NM](https://openairdocs.org/stc/SA4172NM): Installation of Aviation Development oil filter. Aviation Development Corporation
- [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 SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc
- [STC SA00402SE](https://openairdocs.org/stc/SA00402SE): Installation of a remote spin-on oil filter adapter. (GC-1B w/Lycoming or Cont 360 engine installed). Aviation Development Corporation
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International
- [STC SR01430LA](https://openairdocs.org/stc/SR01430LA): Installation of Stainless Steel Skid shoes. Papas Gary Los Angeles Laboratories Inc
- [STC SA02520AT](https://openairdocs.org/stc/SA02520AT): Installation of M-20 Oil Separator, model 600-WP. M-20 Oil Separators LLC
- [STC SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing Inc
- [STC SH12CE](https://openairdocs.org/stc/SH12CE): Replace existing engine induction air filter with AC Spark Plug Filter. Brackett Aero Filters Inc
- [STC SH5857SW](https://openairdocs.org/stc/SH5857SW): Installation of remote engine oil filler. Kinzie Industries Inc
- [STC SA00061LA](https://openairdocs.org/stc/SA00061LA): Installation of JPI digital tachometer. J P Instruments
- [STC SR00138LA](https://openairdocs.org/stc/SR00138LA): Installation of ground handling wheels carrier, P/N 300-08-00 on existing skid tubes. Brackett Aero Filters Inc
- [STC SA00238SE](https://openairdocs.org/stc/SA00238SE): Installation of Aviation Development Corporation's sump mounted chip detector. Aviation Development Corporation
- [STC SR00078DE](https://openairdocs.org/stc/SR00078DE): Installation of a swivel mount assembly to mount a flat design video monitor. Paravion Technology Inc
- [STC SA2844CE](https://openairdocs.org/stc/SA2844CE): Installation of a plastic cap enclosure over the anti-collision strobe light system. Air Transport Inc
- [STC SH2966SO](https://openairdocs.org/stc/SH2966SO): Installation of pitch control link teflon rings. Bouman R Thomas. Lists 269 Series
- [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 SH7598SW](https://openairdocs.org/stc/SH7598SW): Installation of forward door glass with slide window. Tech-Tool Plastics Inc
- [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 SH4173NM](https://openairdocs.org/stc/SH4173NM): Installation of Simplex Model 7600 modular electrical system. (US ARMY OH-13E M74A). Simplex Manufacturing Company
- [STC SH37WE](https://openairdocs.org/stc/SH37WE): Installation of floats, per Hughes Tool Co. Air Cruisers Company
- [STC SA2190NM PAGE 1](https://openairdocs.org/stc/SA2190NM%20PAGE%201): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International
- [STC SH1765NM](https://openairdocs.org/stc/SH1765NM): Installation of a Simplex Model5200 spray system. Simplex Manufacturing Company. Lists 269 Series

All 76: https://openairdocs.org/model/hughes-269a-1/stcs.md

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