# TCDS A5SW: Ontic Engineering and Manufacturing Inc.

- Type: Type certificate data sheet
- Status: Current
- Holder: Ontic Engineering and Manufacturing Inc.
- Revision: 31
- Revised: June 30, 2022
- Product: Aircraft, Small Airplane
- Certification basis: Part 23, CAR 3
- Registered aircraft: 86, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/58/ea/58eaa2584587c036d047b81f4929bc0423d3c0225b87318e32af53cd52e886aa
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AA523F04C7F3DADC862588A90051CACF.0001
- Page: https://openairdocs.org/tcds/A5SW

## Models (7)

As the data sheet lists them.

- SA227-AT
- SA227-TT
- SA226-T
- SA26-AT
- SA226-AT
- SA26-T
- SA226-T(B)

## ADs (90, first 50, in force first)

- [AD 2021-01-02](https://openairdocs.org/ad/2021-01-02): Propellers/propulsors · M7 Aerospace SA26-AT and SA26-T. Effective Feb 26, 2021
- [AD 2017-07-01](https://openairdocs.org/ad/2017-07-01): Propellers/Propulsors · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 7 more. Effective May 5, 2017
- [AD 2016-25-12](https://openairdocs.org/ad/2016-25-12): Horizontal Stabilizer Structure · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 7 more. Effective Jan 12, 2017
- [AD 2016-15-02](https://openairdocs.org/ad/2016-15-02): Flight Controls · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Aug 26, 2016
- [AD 2016-10-01](https://openairdocs.org/ad/2016-10-01): Elevator Control System · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 7 more. Effective Jun 15, 2016
- [AD 2015-19-10](https://openairdocs.org/ad/2015-19-10): Flight Controls · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Nov 3, 2015
- [AD 2015-13-10](https://openairdocs.org/ad/2015-13-10): Flight Controls · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 1 more. Effective Jul 21, 2015
- [AD 2014-15-01](https://openairdocs.org/ad/2014-15-01): Fuselage Main, Structure · M7 Aerospace SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A) and 2 more. Effective Aug 27, 2014
- [AD 2014-09-02](https://openairdocs.org/ad/2014-09-02): Flight Controls · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Jun 5, 2014
- [AD 2014-06-01](https://openairdocs.org/ad/2014-06-01): Fuselage Main, Bulkhead · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Apr 25, 2014
- [AD 2012-18-01](https://openairdocs.org/ad/2012-18-01): Wing, Fuselage Attach Fitting · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 7 more. Effective Sep 21, 2012
- [AD 2011-02-04](https://openairdocs.org/ad/2011-02-04): Flight Compartment Windows · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 9 more. Effective Jan 24, 2011
- [AD 2009-11-06](https://openairdocs.org/ad/2009-11-06): Hydraulic tube assemblies · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Jul 2, 2009
- [AD 2007-16-03](https://openairdocs.org/ad/2007-16-03): Pitch trim actuators · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 8 more. Effective Sep 7, 2007
- [AD 2005-18-20](https://openairdocs.org/ad/2005-18-20): "FASTprop" propeller de-icers · Hartzell PHC-C3YF-1RF/F8468A(B,K)-8R constant speed propeller (STC SA00718LA or 17 others). Effective Oct 14, 2005
- [AD 2005-06-13](https://openairdocs.org/ad/2005-06-13): Wing spar center web cutout · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective May 2, 2005
- [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005
- [AD 2003-19-10](https://openairdocs.org/ad/2003-19-10): Fuel boost pump · M7 Aerospace SA226-AT, SA226-T, SA226-T(B) and 8 more. Effective Nov 7, 2003
- [AD 2002-08-01](https://openairdocs.org/ad/2002-08-01): Brake Master Cylinders · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jun 6, 2002
- [AD 2002-08-02](https://openairdocs.org/ad/2002-08-02): Brake Shuttle Valves · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jun 6, 2002
- [AD 2002-01-16](https://openairdocs.org/ad/2002-01-16): Dual Engine Flameout · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Mar 11, 2002
- [AD 2000-17-01](https://openairdocs.org/ad/2000-17-01): Brake System · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Oct 6, 2000
- [AD 2000-17-11](https://openairdocs.org/ad/2000-17-11): Main Landing Gear (MLG) Assemblies · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Sep 22, 2000
- [AD 2000-06-04](https://openairdocs.org/ad/2000-06-04): Pneumatic Deicing Boots · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 8 more. Effective May 5, 2000
- [AD 99-21-05](https://openairdocs.org/ad/99-21-05): Landing Gear Actuator Rod Ends · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 1 more. Effective Nov 16, 1999
- [AD 98-08-20](https://openairdocs.org/ad/98-08-20): Autopilot Servo Actuators · Alliedsignal Avionics Autopilot Servo Actuators, Mystere-Falcon 20 - C5, Mystere-Falcon 20 - D5 and 17 more. Effective Jun 2, 1998
- [AD 98-06-25](https://openairdocs.org/ad/98-06-25): Cargo Door Lower Belt Frames · M7 Aerospace SA226-AT, SA226-TC, SA227-AC (C-26A) and 1 more. Effective Apr 27, 1998
- [AD 98-04-05](https://openairdocs.org/ad/98-04-05): Wing Trailing Edge Ribs · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 1 more. Effective Mar 10, 1998
- [AD 97-11-13](https://openairdocs.org/ad/97-11-13): Generator Fault Transformer Wiring · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Jul 11, 1997
- [AD 97-10-13](https://openairdocs.org/ad/97-10-13): Elevator Torque Tube Arm · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Jul 8, 1997
- [AD 97-01-12](https://openairdocs.org/ad/97-01-12): Ground Proximity Warning System · Airtell International Ground Proximity Warning System, Mystere-Falcon 200, EMB-110P1 and 20 more. Effective Feb 25, 1997
- [AD 96-20-08](https://openairdocs.org/ad/96-20-08): Replace Side Cockpit Window · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Nov 14, 1996
- [AD 96-19-05](https://openairdocs.org/ad/96-19-05): Main Landing Gear or Nose Landing Gear Assemblies or Yokes · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Oct 1, 1996
- [AD 96-09-16](https://openairdocs.org/ad/96-09-16): Airplane Flight Manual (AFM) - Icing · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Jun 11, 1996
- [AD 95-17-09 R1](https://openairdocs.org/ad/95-17-09-R1): Essential Bus Current Limiters · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective May 13, 1996
- [AD 94-07-10 R1](https://openairdocs.org/ad/94-07-10-R1): Upper Wing Skin Inspection · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Mar 25, 1996
- [AD 96-03-03](https://openairdocs.org/ad/96-03-03): Power Control Cable Safety Wire Nuts · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Mar 15, 1996
- [AD 95-25-07](https://openairdocs.org/ad/95-25-07): Main Landing Gear Actuator Tangs & Hardware · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 1 more. Effective Jan 17, 1996
- [AD 95-24-11](https://openairdocs.org/ad/95-24-11): Foreign Object Damage Barriers In Floorboards · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 7 more. Effective Jan 3, 1996
- [AD 95-18-05](https://openairdocs.org/ad/95-18-05): Aluminum Cargo Door Receptacles · M7 Aerospace SA226-AT and SA226-TC. Effective Sep 26, 1995
- [AD 95-17-07](https://openairdocs.org/ad/95-17-07): Main Landing Gear Doors · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 1 more. Effective Aug 28, 1995
- [AD 95-01-07](https://openairdocs.org/ad/95-01-07): Lower Wing Skin Panels · M7 Aerospace SA227-AC (C-26A) and SA227-AT. Effective Feb 17, 1995
- [AD 93-15-01](https://openairdocs.org/ad/93-15-01): Horizontal Stabilizer Pivot Fitting Fasteners · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Sep 16, 1993
- [AD 93-09-05](https://openairdocs.org/ad/93-09-05): Elevator Return Spring · M7 Aerospace SA226-AT, SA226-TC, SA227-AC (C-26A) and 1 more. Effective Jun 18, 1993
- [AD 93-07-12](https://openairdocs.org/ad/93-07-12): Horizontal Stabilizer Rear Spar Inspection · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective May 28, 1993
- [AD 93-08-09](https://openairdocs.org/ad/93-08-09): Airplane Flight Manual (AFM) Change - Nose Wheel · M7 Aerospace SA227-AC (C-26A), SA227-AT, SA227-BC (C-26A) and 2 more. Effective May 14, 1993
- [AD 92-19-08](https://openairdocs.org/ad/92-19-08): Rudder Pedal Link Attachment · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 4 more. Effective Oct 16, 1992
- [AD 92-18-07](https://openairdocs.org/ad/92-18-07): Power Lever Detent Arms · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 5 more. Effective Oct 2, 1992
- [AD 90-14-01](https://openairdocs.org/ad/90-14-01): Passenger Seat · M7 Aerospace SA226-AT, SA226-TC, SA227-AC (C-26A) and 1 more. Effective Feb 11, 1991
- [AD 90-24-03](https://openairdocs.org/ad/90-24-03): Rudder Trim Link Assemblies · M7 Aerospace SA226-AT, SA226-T, SA226-TC and 10 more. Effective Jan 25, 1991

All 90: https://openairdocs.org/tcds/A5SW/ads.md

## Registered aircraft by registry model (OpenAirDocs)

- [Swearingen SA-226T](https://openairdocs.org/model/swearingen-sa-226t): 21 aircraft (registry code 8780122)
- [Swearingen SA226-T(B)](https://openairdocs.org/model/swearingen-sa226-t-b): 16 aircraft (registry code 8780406)
- [Swearingen SA227-AT](https://openairdocs.org/model/swearingen-sa227-at): 12 aircraft (registry code 8780610)
- [Swearingen SA227-TT](https://openairdocs.org/model/swearingen-sa227-tt): 11 aircraft (registry code 8780620)
- [Fairchild SA227-AT](https://openairdocs.org/model/fairchild-sa227-at): 9 aircraft (registry code 3377510)
- [Swearingen SA-26AT](https://openairdocs.org/model/swearingen-sa-26at): 9 aircraft (registry code 8780112)
- [Fairchild SA226-T(B)](https://openairdocs.org/model/fairchild-sa226-t-b): 3 aircraft (registry code 3377516)
- [Swearingen SA-226AT](https://openairdocs.org/model/swearingen-sa-226at): 3 aircraft (registry code 8780405)
- [Fairchild SA226-AT](https://openairdocs.org/model/fairchild-sa226-at): 1 aircraft (registry code 3377515)
- [Fairchild SA226-T](https://openairdocs.org/model/fairchild-sa226-t): 1 aircraft (registry code 3377514)
- [Fairchild SA227-TT](https://openairdocs.org/model/fairchild-sa227-tt): 0 aircraft (registry code 3377517)
- [Fairchild SA26-AT](https://openairdocs.org/model/fairchild-sa26-at): 0 aircraft (registry code 3377513)
- [Fairchild SA26-T](https://openairdocs.org/model/fairchild-sa26-t): 0 aircraft (registry code 3377512)
- [Fairchild Swearingen SA227-TT](https://openairdocs.org/model/fairchild-swearingen-sa227-tt): 0 aircraft (registry code 3370103)
- [Swearingen SA26-T](https://openairdocs.org/model/swearingen-sa26-t): 0 aircraft (registry code 8780102)

## STCs approved under this data sheet (213, first 50)

- [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of  existing instrument panel lights dimmer control.. TCW Technologies, LLC
- [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC
- [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC
- [STC SA02019SE-D (1 OF 3)](https://openairdocs.org/stc/SA02019SE-D%20(1%20OF%203)): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc.
- [STC SA02019SE-D (3 OF 3)](https://openairdocs.org/stc/SA02019SE-D%20(3%20OF%203)): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc.
- [STC SA11158SC](https://openairdocs.org/stc/SA11158SC): Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS). Liberty Partners Inc.
- [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc.
- [STC SA04046CH PAGE 1](https://openairdocs.org/stc/SA04046CH%20PAGE%201): Installation of L-3 GENESIS  (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc.
- [STC SA8808SW](https://openairdocs.org/stc/SA8808SW): Installation of a TCAS 791 (TCAS I) system.. Acron Aviation Inc.
- [STC SA09768DS](https://openairdocs.org/stc/SA09768DS): Installation of S-TEC 01236 Digital Flight Control System (DFCS). S-Tec Corporation
- [STC SA04627CH](https://openairdocs.org/stc/SA04627CH): Installation of Luma Technologies LT-4048 Series LED Display Panel. Luma Technologies LLC
- [STC SA04051CH](https://openairdocs.org/stc/SA04051CH): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders. CMD Flight Solutions LLC
- [STC SA02658SE (1 OF 2)](https://openairdocs.org/stc/SA02658SE%20(1%20OF%202)): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc.
- [STC SA02571SE](https://openairdocs.org/stc/SA02571SE): Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).. Garmin International Inc.
- [STC SA00756DE](https://openairdocs.org/stc/SA00756DE): Installation of Automatic Dependent Surveillance  Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position Sensor. Peregrine
- [STC SA4872SW](https://openairdocs.org/stc/SA4872SW): Installation of two Garrett AiResearch Model TPE 331-1OUA-501G or TPE 331-1OUA-511G engines.. Worldwide Aviation LLC
- [STC ST00789WI](https://openairdocs.org/stc/ST00789WI): Installation of the Fairchild Digital Data Flight Recorder Model F800 or F1000.. Worldwide Aircraft Services LLC
- [STC SA1009GL](https://openairdocs.org/stc/SA1009GL): Install Aircraft Wheel & Brake Conversion Kit 199-150, N/C.. Kaman Corporation Aircraft Wheel and Brake LLC
- [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 SA09170AC](https://openairdocs.org/stc/SA09170AC): Installation of Concorde RG390ES sealed lead-acid batteries. Ontic Engineering and Manufacturing Inc.
- [STC SA09463AC](https://openairdocs.org/stc/SA09463AC): Installation of Concorde FASRG91STC sealed lead-acid batteries.. Ontic Engineering and Manufacturing Inc.
- [STC SA1528SO](https://openairdocs.org/stc/SA1528SO): Installation of Litton LTN 72R inertial navigation system utilizing software program 72-7 supplement 72-19 installed. Ontic Engineering and Manufacturing Inc.
- [STC SA1529SO](https://openairdocs.org/stc/SA1529SO): Installation of Foster Airdata RNAV 612 area navigation system. Ontic Engineering and Manufacturing Inc.
- [STC SA4618SW](https://openairdocs.org/stc/SA4618SW): Installation of the Zee Systems R-12/R-134a Air Conditioning Systems. Ontic Engineering and Manufacturing Inc.
- [STC SA4725SW](https://openairdocs.org/stc/SA4725SW): Installation of Conrac stall warning and stall avoidance system.. Ontic Engineering and Manufacturing Inc.
- [STC SA7374SW](https://openairdocs.org/stc/SA7374SW): Installation of a UNS-1A flight management system.. Ontic Engineering and Manufacturing Inc.
- [STC SA5901NM](https://openairdocs.org/stc/SA5901NM): Mk VI ground proximity warning system installed.. Honeywell International Inc
- [STC SA11174SC PAGE 1](https://openairdocs.org/stc/SA11174SC%20PAGE%201): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King)
- [STC ST01930LA](https://openairdocs.org/stc/ST01930LA): Installation of Sandel Avionics SN4500 Electronic Horizontal Situation Indicator (EHSI). Sandel Avionics LLC
- [STC SA02075SE](https://openairdocs.org/stc/SA02075SE): Installation of a Mid-Continent MD835( ) Lithium Ion Battery. Mid-Continent Instrument Co. Inc.
- [STC SA04514NY](https://openairdocs.org/stc/SA04514NY): Single/Dual Transponder System ADS-B Upgrade. Scandinavian Avionics Design ApS
- [STC SA2061CE-D](https://openairdocs.org/stc/SA2061CE-D): Installation of King KNS-660 multi-sensor flight management system.. Honeywell International Inc
- [STC SA2063CE-D](https://openairdocs.org/stc/SA2063CE-D): Installation of Bendix 3 tube or 5 tube EFS-10 electronic flight instrument system.. Honeywell International Inc
- [STC SA01452CH](https://openairdocs.org/stc/SA01452CH): Installation of an air ambulance conversion kit.. Med-Pac Inc.
- [STC SA02677LA](https://openairdocs.org/stc/SA02677LA): Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-700 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC SA02678LA](https://openairdocs.org/stc/SA02678LA): Modification to upgrade the existing Mode S Transponder system by installing the ACSS NXT-600 Transponder with ADS-B Out and optionally install the ACSS NXG-900 GPS as the position source for ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC SA04143NY](https://openairdocs.org/stc/SA04143NY): Installation of MT-Propeller Entwicklung GmbH propellers and spinners. MT- Propeller Entwicklung GmbH
- [STC SA01714WI (1 OF 2)](https://openairdocs.org/stc/SA01714WI%20(1%20OF%202)): 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 SA1709GL](https://openairdocs.org/stc/SA1709GL): Install air ambulance conversion.. Spectrum Aeromed LLC dba Spectrum Aeromed
- [STC SA02890AT](https://openairdocs.org/stc/SA02890AT): Installation of a Honeywell Model CAS 67A Traffic Alert and Collision Avoidance System II (TCAS II) with Single Mode-S Transponder. Toledo Jet Center, LLC.
- [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation
- [STC SA02153LA-D PAGE 1](https://openairdocs.org/stc/SA02153LA-D%20PAGE%201): Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System. Garmin International Inc.
- [STC SA02013CH](https://openairdocs.org/stc/SA02013CH): Installation of Avidyne Corporation Traffic Advisory System (TAS). Avidyne Corporation
- [STC SA1141SW](https://openairdocs.org/stc/SA1141SW): Installation of single Sperry STARS IV B Flight Director System. Associated Air Center, Inc. - c/o CT Corporation System
- [STC SA933SW](https://openairdocs.org/stc/SA933SW): Move nose wheel steering switch from power lever to both control wheels. Associated Air Center, Inc. - c/o CT Corporation System
- [STC SA01933LA-D (1 OF 2)](https://openairdocs.org/stc/SA01933LA-D%20(1%20OF%202)): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc
- [STC SA8919SW](https://openairdocs.org/stc/SA8919SW): Conversion of aircraft from passenger configuration to cargo only configuration. Worldwide Aviation Engineering LLC
- [STC SA03973NY](https://openairdocs.org/stc/SA03973NY): Replacement of existing TCAS 7.0 by TCAS 7.1. Scandinavian Avionics Design ApS
- [STC ST00276WI](https://openairdocs.org/stc/ST00276WI): Installation of Kedeg Company 21BC11e Coaleser Assemly.. Purolator Facet, Inc
- [STC SA00343BO](https://openairdocs.org/stc/SA00343BO): Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved release). Avidyne Corporation

All 213: https://openairdocs.org/tcds/A5SW/stcs.md

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.
