# Airworthiness directives that may apply: N355FF

A list on [N355FF](https://openairdocs.org/aircraft/N355FF.md).

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

- [AD 2026-20-08](https://openairdocs.org/ad/2026-20-08.md): Tail rotor drive system · Effective Nov 5, 2026
- [AD 2026-20-03](https://openairdocs.org/ad/2026-20-03.md): Placards and Markings · Effective Nov 5, 2026
- [AD 2026-16-03](https://openairdocs.org/ad/2026-16-03.md): Tail Rotor Drive System · Effective Sep 17, 2026
- [AD 2026-10-16](https://openairdocs.org/ad/2026-10-16.md): Time Limits/Maintenance Checks · Effective Jul 21, 2026 · Supersedes AD 2022-19-13
- [AD 2026-09-15](https://openairdocs.org/ad/2026-09-15.md): Tail rotor head · Effective Jul 21, 2026 · Supersedes AD 2023-01-04
- [AD 2026-12-03](https://openairdocs.org/ad/2026-12-03.md): Main rotor gearbox · Effective Jul 14, 2026 · Supersedes AD 2025-06-04
- [AD 2026-05-09](https://openairdocs.org/ad/2026-05-09.md): Powerplant/Engine Drains · Effective Mar 25, 2026
- [AD 2025-24-04](https://openairdocs.org/ad/2025-24-04.md): Vertical Stabilizer, Spar/Rib Structure · Effective Jan 12, 2026 · Supersedes AD 2021-20-16
- [AD 2025-09-13](https://openairdocs.org/ad/2025-09-13.md): Doors · Effective Jul 7, 2025
- [AD 2025-03-02](https://openairdocs.org/ad/2025-03-02.md): Flight compartment equipment · Effective Mar 7, 2025
- [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07.md): Emergency Equipment; Emergency Flotation Section · Effective Dec 5, 2024
- [AD 2024-15-08](https://openairdocs.org/ad/2024-15-08.md): Main Rotor Blades · Effective Oct 15, 2024
- [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07.md): Ground Proximity System · Effective Jun 22, 2023 · Supersedes AD 2021-23-13
- [AD 2023-03-13](https://openairdocs.org/ad/2023-03-13.md): Tail Rotor Drive System · Effective Mar 31, 2023
- [AD 2022-11-18](https://openairdocs.org/ad/2022-11-18.md): Engine Cowling System · Effective Jul 13, 2022
- [AD 2022-10-51](https://openairdocs.org/ad/2022-10-51.md): Flight Control System · Emergency AD · Effective Jun 7, 2022
- [AD 2021-03-16 R1](https://openairdocs.org/ad/2021-03-16-R1.md): Passenger/Crew Doors · Effective Mar 24, 2022 · Supersedes AD 2021-03-16
- [AD 2022-01-01](https://openairdocs.org/ad/2022-01-01.md): Main Rotor System · Effective Mar 7, 2022
- [AD 2021-20-06](https://openairdocs.org/ad/2021-20-06.md): Turbine section · Effective Nov 22, 2021
- [AD 2021-17-17](https://openairdocs.org/ad/2021-17-17.md): Cabin Equipment/Furnishings · Effective Nov 22, 2021
- [AD 2021-19-09](https://openairdocs.org/ad/2021-19-09.md): Cabin Equipment/Furnishings · Effective Nov 4, 2021 · Supersedes AD 2020-24-03
- [AD 2021-16-16](https://openairdocs.org/ad/2021-16-16.md): Rotorcraft Flight Control · Effective Oct 13, 2021
- [AD 2021-16-11](https://openairdocs.org/ad/2021-16-11.md): Tail Rotor Control System · Effective Oct 6, 2021
- [AD 2021-14-07](https://openairdocs.org/ad/2021-14-07.md): Cabin Equipment/Furnishings · Effective Aug 19, 2021 · Supersedes AD 2003-25-01
- [AD 2021-07-15](https://openairdocs.org/ad/2021-07-15.md): Tail Rotor Drive Shaft · Effective May 7, 2021 · Supersedes AD 82-20-05
- [AD 2021-05-09](https://openairdocs.org/ad/2021-05-09.md): Tail Rotor Control System · Effective Apr 16, 2021 · Supersedes AD 2018-15-02
- [AD 2021-04-13](https://openairdocs.org/ad/2021-04-13.md): Main Rotor Mast Inner Race Rings · Effective Apr 14, 2021
- [AD 2021-04-17](https://openairdocs.org/ad/2021-04-17.md): Tail Rotor Blades · Effective Mar 23, 2021
- [AD 2020-22-20](https://openairdocs.org/ad/2020-22-20.md): Main Rotor Gearbox · Effective Dec 14, 2020
- [AD 2020-20-14](https://openairdocs.org/ad/2020-20-14.md): Rotorcraft Servo System · Effective Oct 23, 2020
- [AD 2015-17-01 R1](https://openairdocs.org/ad/2015-17-01-R1.md): Tail Rotor · Effective Sep 11, 2020 · Supersedes AD 2015-17-01
- [AD 2020-09-01](https://openairdocs.org/ad/2020-09-01.md): Main Rotor Gearbox · Effective May 28, 2020 · Supersedes AD 2008-24-04
- [AD 2020-02-23](https://openairdocs.org/ad/2020-02-23.md): Landing gear · Effective Feb 28, 2020
- [AD 2018-19-10](https://openairdocs.org/ad/2018-19-10.md): Tail Rotor Driveshaft · Effective Oct 30, 2018
- [AD 2018-02-02](https://openairdocs.org/ad/2018-02-02.md): Main Gearbox Mast · Effective Feb 12, 2018
- [AD 2016-25-20](https://openairdocs.org/ad/2016-25-20.md): Main Rotor Drive System · Effective Jan 31, 2017
- [AD 2016-05-06](https://openairdocs.org/ad/2016-05-06.md): Rotorcraft tailboom · Effective Apr 8, 2016 · Supersedes AD 2014-07-52
- [AD 2015-17-11](https://openairdocs.org/ad/2015-17-11.md): Main Rotor System · Effective Sep 29, 2015
- [AD 2015-12-01](https://openairdocs.org/ad/2015-12-01.md): Fuel Flow Sensor · Effective Jul 14, 2015
- [AD 2014-05-10](https://openairdocs.org/ad/2014-05-10.md): Tail Rotor · Effective May 2, 2014 · Supersedes AD 2012-25-04
- [AD 2014-05-07](https://openairdocs.org/ad/2014-05-07.md): Tail Rotor Control System · Effective Apr 15, 2014 · Supersedes AD 2010-11-51
- [AD 2014-04-11](https://openairdocs.org/ad/2014-04-11.md): Tail rotor blades · Effective Apr 9, 2014
- [AD 2013-23-10](https://openairdocs.org/ad/2013-23-10.md): Fuselage Miscellaneous Structure · Effective Dec 30, 2013 · Supersedes AD 2010-21-01
- [AD 2013-23-09](https://openairdocs.org/ad/2013-23-09.md): Doors · Effective Dec 27, 2013
- [AD 2013-16-03](https://openairdocs.org/ad/2013-16-03.md): Tail Rotor Gearbox · Effective Oct 22, 2013
- [AD 2013-17-01](https://openairdocs.org/ad/2013-17-01.md): Tail rotor control system · Effective Oct 9, 2013
- [AD 2013-10-51](https://openairdocs.org/ad/2013-10-51.md): Rotorcraft Servo System · Emergency AD · Effective Jul 31, 2013
- [AD 2013-08-19](https://openairdocs.org/ad/2013-08-19.md): Fuselage Door Hinges · Effective Jun 5, 2013
- [AD 2012-25-01](https://openairdocs.org/ad/2012-25-01.md): Emergency Equipment · Effective Jun 5, 2013
- [AD 2011-18-12](https://openairdocs.org/ad/2011-18-12.md): Vertical stabilizer spar/rib structure · Effective Feb 8, 2012 · Supersedes AD 82-13-05 R1
- [AD 2011-11-04](https://openairdocs.org/ad/2011-11-04.md): Contaminated Gas · Effective Jun 17, 2011
- [AD 2010-22-08](https://openairdocs.org/ad/2010-22-08.md): Main rotor servo-controls and tail rotor servo-controls · Effective Nov 26, 2010
- [AD 2010-09-01](https://openairdocs.org/ad/2010-09-01.md): Equipment/Furnishings · Effective May 14, 2010
- [AD 2010-06-07](https://openairdocs.org/ad/2010-06-07.md): Rotorcraft Flight Control · Effective Apr 21, 2010
- [AD 2005-10-14](https://openairdocs.org/ad/2005-10-14.md): Main or combiner gearboxes · Effective Jun 21, 2005 · Supersedes AD 2004-01-51
- [AD 2004-05-23](https://openairdocs.org/ad/2004-05-23.md): Main rotor swashplate bearing (bearing) · Effective Apr 14, 2004 · Supersedes AD 89-21-01
- [AD 2004-01-09](https://openairdocs.org/ad/2004-01-09.md): Electrical power generating systems · Effective Feb 13, 2004
- [AD 2003-22-11](https://openairdocs.org/ad/2003-22-11.md): Main and tail servocontrol · Effective Dec 8, 2003 · Supersedes AD 2001-26-53
- [AD 2003-14-12](https://openairdocs.org/ad/2003-14-12.md): Equipment Log Card (FME) · Effective Aug 25, 2003
- [AD 2003-14-19](https://openairdocs.org/ad/2003-14-19.md): Main servocontrols · Effective Aug 21, 2003
- [AD 2003-02-05](https://openairdocs.org/ad/2003-02-05.md): Sliding door roller · Effective Feb 10, 2003
- [AD 2002-20-03](https://openairdocs.org/ad/2002-20-03.md): Ferry fuel tank (tank) electrostatic ground connector · Effective Nov 6, 2002
- [AD 2002-15-08](https://openairdocs.org/ad/2002-15-08.md): Cargo Hooks · Effective Sep 6, 2002
- [AD 2002-06-04](https://openairdocs.org/ad/2002-06-04.md): Tail Rotor Hub Pitch Change Plate "SNR" Bearing · Effective Apr 24, 2002
- [AD 2002-03-52](https://openairdocs.org/ad/2002-03-52.md): Adhesive Bead and the Metal Bushing Bonded on Each STARFLEX Star Arm End · Emergency AD · Effective Apr 4, 2002 · Supersedes AD 2002-02-51
- [AD 2001-26-55](https://openairdocs.org/ad/2001-26-55.md): Blade Skin of Trailing Edge Tab · Emergency AD · Effective Feb 26, 2002
- [AD 2001-17-32](https://openairdocs.org/ad/2001-17-32.md): Tail Rotor Pitch Change Spider Assembly · Effective Oct 4, 2001 · Supersedes AD 99-24-18
- [AD 2000-25-08](https://openairdocs.org/ad/2000-25-08.md): Main Gearbox Suspension Bi-directional Cross Beam · Effective Apr 24, 2001 · Supersedes AD 2000-10-10
- [AD 2001-04-14](https://openairdocs.org/ad/2001-04-14.md): Fuselage Frame · Effective Apr 10, 2001 · Supersedes AD 85-14-06 R1
- [AD 2000-20-19](https://openairdocs.org/ad/2000-20-19.md): Main Rotor Head · Effective Nov 20, 2000 · Supersedes AD 86-15-10 R2
- [AD 2000-10-09](https://openairdocs.org/ad/2000-10-09.md): Circuit Breaker · Effective Jun 26, 2000
- [AD 98-06-12](https://openairdocs.org/ad/98-06-12.md): Bolts of Tailboom · Effective Mar 30, 1998
- [AD 96-07-03](https://openairdocs.org/ad/96-07-03.md): Cyclic Pitch Change Control Rod · Effective May 2, 1996
- [AD 95-11-05](https://openairdocs.org/ad/95-11-05.md): Main Gear Box Oil Pressure Switch · Effective Jun 9, 1995
- [AD 90-23-03](https://openairdocs.org/ad/90-23-03.md): Main Rotor Servo Control · Effective Dec 3, 1990
- [AD 88-25-09](https://openairdocs.org/ad/88-25-09.md): Tail Rotor Drive Shaft · Effective Jul 14, 1989
- [AD 89-01-01](https://openairdocs.org/ad/89-01-01.md): Engine Automatic Relight System · Effective Jan 28, 1989
- [AD 87-13-05 R1](https://openairdocs.org/ad/87-13-05-R1.md): Components Fatigue Failure · Effective Jun 8, 1988
- [AD 87-19-01](https://openairdocs.org/ad/87-19-01.md): Stc Sh479gl Labels · Effective Dec 18, 1987
- [AD 86-19-15 R1](https://openairdocs.org/ad/86-19-15-R1.md): Main Rotor Head Sleeves · Effective Dec 18, 1986
- [AD 2022-10-06](https://openairdocs.org/ad/2022-10-06.md): Turbine Section · Effective Jun 28, 2022 · Supersedes AD 2017-18-14
- [AD 2018-13-01](https://openairdocs.org/ad/2018-13-01.md): Turbine Governor · Effective Aug 16, 2018
- [AD 2006-16-04](https://openairdocs.org/ad/2006-16-04.md): Inspection of the fuel nozzle screen · Effective Sep 7, 2006 · Supersedes AD 2004-24-09
- [AD 2006-13-06](https://openairdocs.org/ad/2006-13-06.md): Gas producer rotor assembly tie bolts · Effective Jul 26, 2006
- [AD 2005-10-13](https://openairdocs.org/ad/2005-10-13.md): Turbine energy absorbing ring · Effective Jun 22, 2005
- [AD 2004-26-09](https://openairdocs.org/ad/2004-26-09.md): Compressor Adaptor Couplings · Effective Feb 8, 2005
- [AD 2001-24-12](https://openairdocs.org/ad/2001-24-12.md): Helical Torquemeter Gearshaft Assembly · Effective Dec 19, 2001 · Supersedes AD 2001-20-51
- [AD 98-24-28](https://openairdocs.org/ad/98-24-28.md): Main Fuel Control Bellows · Effective Jan 7, 1999
- [AD 96-19-01](https://openairdocs.org/ad/96-19-01.md): Superior Air Parts Manufacture Approval (PMA) Bearings · Effective Sep 26, 1996
- [AD 93-25-05](https://openairdocs.org/ad/93-25-05.md): Driveshaft Flex Coupling Bolts, Bushings, and Nuts · Effective Feb 22, 1994
- [AD 88-17-01](https://openairdocs.org/ad/88-17-01.md): Fuel Controls · Effective Mar 1, 1989
- [AD 83-03-02 R1](https://openairdocs.org/ad/83-03-02-R1.md): Slotted Third Stage Turbine Wheels · Effective Feb 28, 1984
- [AD 82-24-05](https://openairdocs.org/ad/82-24-05.md): Control Assembly and Power Turbine Governor Assembly · Effective Nov 26, 1982
- [AD 82-13-03](https://openairdocs.org/ad/82-13-03.md): Modify Engine High Pressure Fuel Control Filter Assembly · Effective Jul 1, 1982
- [AD 79-21-01 R1](https://openairdocs.org/ad/79-21-01-R1.md): Third Stage Turbine Wheel Blade · Effective Jun 3, 1981
- [AD 78-14-08](https://openairdocs.org/ad/78-14-08.md): Fuel Pump Drive Spline · Effective Oct 24, 1979
- [AD 77-15-12](https://openairdocs.org/ad/77-15-12.md): Power Turbine Coupling Nut · Effective Sep 23, 1977
- [AD 77-09-08](https://openairdocs.org/ad/77-09-08.md): Bleed Valve Diaphragm · Effective Jul 18, 1977
- [AD 74-14-03](https://openairdocs.org/ad/74-14-03.md): Fuel Control Rigging · Effective Jul 10, 1974
- [AD 73-19-07](https://openairdocs.org/ad/73-19-07.md): Turbine Governor-To-Fuel Control Tube · Effective Sep 14, 1973
- [AD 72-03-06](https://openairdocs.org/ad/72-03-06.md): Turbine Wheels · Effective Feb 8, 1972
- [AD 2025-06-04](https://openairdocs.org/ad/2025-06-04.md): Main Rotor Gearbox · Historical · Effective May 9, 2025 · Replaced by AD 2026-12-03
- [AD 2023-01-04](https://openairdocs.org/ad/2023-01-04.md): Tail Rotor Head · Historical · Effective Mar 8, 2023 · Replaced by AD 2026-09-15
- [AD 2022-19-13](https://openairdocs.org/ad/2022-19-13.md): Tail Rotor Blades · Historical · Effective Oct 27, 2022 · Replaced by AD 2026-10-16
- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13.md): Ground Proximity System · Historical · Effective Dec 9, 2021 · Replaced by AD 2023-11-07
- [AD 2021-20-16](https://openairdocs.org/ad/2021-20-16.md): Vertical Stabilizer, Spar/Rib · Historical · Effective Nov 22, 2021 · Replaced by AD 2025-24-04
- [AD 2021-05-02](https://openairdocs.org/ad/2021-05-02.md): Main Rotor System · Historical · Effective Apr 16, 2021
- [AD 2021-04-15](https://openairdocs.org/ad/2021-04-15.md): Vertical Stabilizer, Spar/Rib · Historical · Effective Mar 23, 2021 · Replaced by AD 2021-20-16
- [AD 2021-03-16](https://openairdocs.org/ad/2021-03-16.md): Passenger/Crew Doors · Historical · Effective Mar 3, 2021 · Replaced by AD 2021-03-16 R1
- [AD 2020-24-03](https://openairdocs.org/ad/2020-24-03.md): Rotorcraft Flight Control · Historical · Effective Dec 16, 2020 · Replaced by AD 2021-19-09
- [AD 2018-15-02](https://openairdocs.org/ad/2018-15-02.md): Tail Rotor Control System · Historical · Effective Aug 3, 2018 · Replaced by AD 2021-05-09
- [AD 2015-17-01](https://openairdocs.org/ad/2015-17-01.md): Tail Rotor · Historical · Effective Sep 24, 2015 · Replaced by AD 2015-17-01 R1
- [AD 2014-07-52](https://openairdocs.org/ad/2014-07-52.md): Rotorcraft Tailboom · Historical · Effective Jun 25, 2014 · Replaced by AD 2016-05-06
- [AD 2013-21-01](https://openairdocs.org/ad/2013-21-01.md): Tail Rotor · Historical · Effective Oct 25, 2013 · Replaced by AD 2015-17-01
- [AD 2011-22-05](https://openairdocs.org/ad/2011-22-05.md): Tail rotor control system · Historical · Effective Nov 25, 2011 · Replaced by AD 2011-22-05 R1
- [AD 2010-21-01](https://openairdocs.org/ad/2010-21-01.md): Fuselage Misc. Structure · Historical · Effective Oct 29, 2010 · Replaced by AD 2013-23-10
- [AD 2010-11-51](https://openairdocs.org/ad/2010-11-51.md): Tail Rotor Control System · Historical · Effective Sep 2, 2010 · Replaced by AD 2014-05-07
- [AD 2008-24-04](https://openairdocs.org/ad/2008-24-04.md): Magnetic chip detector plug (chip detector) · Historical · Effective Dec 30, 2008 · Replaced by AD 2020-09-01
- [AD 2003-21-09 R1](https://openairdocs.org/ad/2003-21-09-R1.md): Magnetic chip detector plug (chip detector) and the main gearbox (MGB) oil-sight glass · Historical · Effective Jul 6, 2006 · Replaced by AD 2008-24-04
- [AD 2004-01-51](https://openairdocs.org/ad/2004-01-51.md): Main or combiner gearbox · Historical · Effective Mar 15, 2004 · Replaced by AD 2005-10-14
- [AD 2003-25-01](https://openairdocs.org/ad/2003-25-01.md): Hoist operator control unit · Historical · Effective Jan 20, 2004 · Replaced by AD 2021-14-07
- [AD 2003-22-06](https://openairdocs.org/ad/2003-22-06.md): Tail rotor pitch control rod (control Rod) · Historical · Effective Dec 3, 2003 · Replaced by AD 2011-22-05
- [AD 2003-21-09](https://openairdocs.org/ad/2003-21-09.md): Magnetic chip detector · Historical · Effective Nov 26, 2003 · Replaced by AD 2003-21-09 R1
- [AD 2002-21-51](https://openairdocs.org/ad/2002-21-51.md): Magnetic chip detector plug · Historical · Effective Jan 2, 2003 · Replaced by AD 2003-21-09
- [AD 2002-02-51](https://openairdocs.org/ad/2002-02-51.md): Metal bushing and the STARFLEX star arm end (arm end) · Historical · Replaced by AD 2002-03-52
- [AD 2000-10-10](https://openairdocs.org/ad/2000-10-10.md): Main Gearbox Suspension Bi-directional Cross-Beam · Historical · Effective Jun 26, 2000 · Replaced by AD 2000-25-08
- [AD 86-15-10 R2](https://openairdocs.org/ad/86-15-10-R2.md): Main Rotor Head Components, the Main Gearbox (MGB) Suspension Bars, and Ground Resonance Prevention System Components · Historical · Effective May 23, 2000 · Replaced by AD 2000-20-19
- [AD 99-24-18](https://openairdocs.org/ad/99-24-18.md): Tail Rotor Spider Plate Bearing · Historical · Effective Dec 15, 1999 · Replaced by AD 2001-17-32
- [AD 98-24-35](https://openairdocs.org/ad/98-24-35.md): Outboard Spherical Bearing Ball · Historical · Effective Dec 17, 1998 · Replaced by AD 2003-22-06
- [AD 98-14-01](https://openairdocs.org/ad/98-14-01.md): Cross-Beam Crack Inspection · Historical · Effective Aug 3, 1998 · Replaced by AD 2000-10-10
- [AD 89-21-01](https://openairdocs.org/ad/89-21-01.md): Main Rotor Swash Plate Bearing · Historical · Effective May 3, 1990 · Replaced by AD 2004-05-23
- [AD 86-15-10 R1](https://openairdocs.org/ad/86-15-10-R1.md): Main Rotor Arms & Gearbox Bars · Historical · Effective Mar 22, 1990 · Replaced by AD 86-15-10 R2
- [AD 85-14-06 R1](https://openairdocs.org/ad/85-14-06-R1.md): Fuselage Tailboom Interface · Historical · Effective Sep 12, 1985 · Replaced by AD 2001-04-14
- [AD 2017-18-14](https://openairdocs.org/ad/2017-18-14.md): Turbine Section · Historical · Effective Oct 13, 2017 · Replaced by AD 2022-10-06
- [AD 2015-02-22](https://openairdocs.org/ad/2015-02-22.md): Repetitive visual inspections · Historical · Effective Mar 9, 2015 · Replaced by AD 2017-18-14
- [AD 2012-14-06](https://openairdocs.org/ad/2012-14-06.md): Released turbine blades and shrouds · Historical · Effective Aug 14, 2012 · Replaced by AD 2015-02-22
- [AD 2004-24-09](https://openairdocs.org/ad/2004-24-09.md): Fuel nozzle · Historical · Effective Jan 5, 2005 · Replaced by AD 2006-16-04
- [AD 2001-20-51](https://openairdocs.org/ad/2001-20-51.md): Helical Torquemeter Gearshaft Assembly · Historical · Replaced by AD 2001-24-12

## The whole list in SQL

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

```sql
SELECT d.ad_number, d.status, d.subject, d.effective_date, m.matched_by
FROM (
  SELECT ad_id, min(rank) AS rank, arg_min(matched_by, rank) AS matched_by
  FROM (SELECT ad_id, 1 AS rank, 'airframe' AS matched_by FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code = '8680810'
    UNION ALL SELECT ad_id, 2, 'engine' FROM 'https://openairdocs.org/data/latest/faa_engine_model_directive.parquet' WHERE engine_model_code = '03020')
  GROUP BY ad_id
) m JOIN 'https://openairdocs.org/data/latest/faa_directive.parquet' d USING (ad_id)
ORDER BY d.status = 'Historical', m.rank, coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC
```

This list as a web page: https://openairdocs.org/aircraft/N355FF/ads

---
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