Rotorcraft · LYCOMING T53-L-13B · as of Sep 21, 2026
Resources Engine · Lycoming Engines ↗ Search FAA TCDS ↗
Distribution · currently registered
By state (top 10)
- CA 50.0% 1
- IL 50.0% 1
By decade of manufacture
- 1960s 100.0% 2
NTSB records
2 event(s) on file. Showing the most recent 2.
- Jul 31, 2023 N567VF Oakdale, Illinois Fatal NTSB docket ↗
- May 10, 2021 N567VF Norris City, Illinois NTSB docket ↗
Airworthiness directives
16 directive(s) on file. Showing the most recent 16.
- Sep 26, 2024
Airworthiness Directives; Bell Textron Inc. and Various Restricted Category Helicopters
The FAA is adopting a new airworthiness directive (AD) for Bell Textron Inc. Model 204B, 205A, 205A-1, 205B, 210, and 212 helicopters and various restricted category helicopters with certain part-numbered tension torsion (TT) straps installed by supplemental type certificate (STC) No. SR03408CH. This AD was prompted b…
- Nov 21, 2022
Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category Helicopters
The FAA is adopting a new airworthiness directive (AD) for Bell Textron Inc., Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters and various restricted category helicopters. This AD was prompted by reports of cracks found on the main transmission support case. This AD requires repetitive inspe…
- Nov 7, 2022
Airworthiness Directives; Bell Textron Inc., Erickson 214 Holdings, LLC, Leonardo S.p.a., and Various Restricted Category Helicopters
The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Inc., Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters; certain Erickson 214 Holdings, LLC, Model 214B and 214B-1 helicopters; certain Leonardo S.p.a. Model AB412 and AB412 EP helicopters; and certain various res…
- Oct 12, 2022
Airworthiness Directives; Bell Textron Inc. Helicopters and Various Restricted Category Helicopters
The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Inc. Model 204B, 205A, and 205A-1 helicopters and various restricted category helicopters. This AD was prompted by a report of cracked main rotor blades (MRBs). This AD requires repetitive inspections of each MRB and removing any cracked M…
- Jun 29, 2022
Airworthiness Directives; Bell Textron Inc. Helicopters and Various Restricted Category Helicopters
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bell Textron Inc. Model 204B, 205A, and 205A-1 helicopters and various restricted category helicopters. This proposed AD was prompted by a report of cracked main rotor blades (MRBs). This proposed AD would require repetitive inspections of each M…
- Apr 14, 2022
Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category Helicopters
The FAA proposes to adopt a new airworthiness directive (AD) for Bell Textron Inc., Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters and various restricted category helicopters. This proposed AD was prompted by reports of cracks found on the main transmission support case. This proposed AD w…
- Mar 14, 2022
Airworthiness Directives; Various Restricted Category Helicopters
The FAA is superseding Airworthiness Directive (AD) 2021-15-52 which applied to various restricted category helicopters originally manufactured by Bell Textron Inc. with a certain main rotor hub strap pin (pin) installed. AD 2021-15-52 required removing certain outboard pins from service and prohibited installing them…
- Jan 21, 2022
Airworthiness Directives; Various Restricted Category Helicopters
The FAA is adopting a new airworthiness directive (AD) for certain type certificated Model UH-1H restricted category helicopters. This AD was prompted by multiple reports of failure of the main driveshaft. This AD requires establishing a limit to replace certain main driveshafts, and a one-time and repetitive inspecti…
- Jul 29, 2021
Airworthiness Directives; Various Restricted Category Helicopters
The FAA is adopting a new airworthiness directive (AD) for various restricted category helicopters originally manufactured by Bell Textron Inc. This AD was prompted by a fatal accident in which an outboard main rotor hub strap pin (pin) sheared off during flight, resulting in the main rotor blade and the main rotor he…
- Jul 26, 2021
Airworthiness Directives; Various Restricted Category Helicopters
The FAA is adopting a new airworthiness directive (AD) for various restricted category helicopters, originally manufactured by Bell Textron Inc. (Bell). This AD was prompted by multiple events involving failure of the tail boom attach structure including the bolts. This AD requires revising the existing Rotorcraft Fli…
- Mar 26, 2021
Airworthiness Directives; Various Restricted Category Helicopters
The FAA proposes to adopt a new airworthiness directive (AD) for type certificated Model UH-1H restricted category helicopters. This proposed AD was prompted by multiple reports of failure of the main driveshaft. This proposed AD would require establishing a life limit for certain main driveshafts, and a one-time and…
- Oct 31, 2019
Airworthiness Directives; Various Experimental and Restricted Category Helicopters
The FAA proposes to adopt a new airworthiness directive (AD) for various helicopters operating under experimental airworthiness certificates and various type certificated restricted category helicopters. This proposed AD was prompted by multiple accidents and incidents involving failure of the tail boom attachment str…
- Jan 17, 2018
Airworthiness Directives; Various Restricted Category Helicopters
We are adopting a new airworthiness directive (AD) for Model TH-1F, UH-1B, UH-1F, UH-1H, and UH-1P helicopters with a Helicopter Technology Company (HTC) main rotor (M/R) blade installed. This AD requires cleaning and visually inspecting the M/R blades and, depending on the outcome of the inspection, repairing or repl…
- Feb 19, 2014
Airworthiness Directives; Various Restricted Category Helicopters
We are adopting a new airworthiness directive (AD) for various restricted category helicopters, originally manufactured by Bell Helicopter Textron, Inc. (Bell), model numbers HH-1K, TH-1F, TH-1L, UH- 1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P. This AD requires inspecting the tail rotor (T/R) cable assembly for a…
- Aug 20, 2013
Airworthiness Directives; Various Restricted Category Helicopters
We propose to adopt a new airworthiness directive (AD) for various restricted category helicopters, originally manufactured by Bell Helicopter Textron, Inc. (Bell), model numbers HH-1K, TH-1F, TH- 1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P. The current type certificate holders include but are not limited…
- Jul 9, 2013
Airworthiness Directives; Various Restricted Category Helicopters
We are adopting a new airworthiness directive (AD) for various restricted category Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH- 1F, UH-1H, UH-1L, and UH-1P helicopters with certain main rotor hub inboard strap fittings (fittings) installed. This AD requires a magnetic particle inspection (MPI) of the fittings f…
Type certificate data sheets · 1 match in the FAA catalog
- H3SO S.M. & T. Aircraft Historical Rev 12 · 12/11/2002
Models: UH-1H, UH-1B, UH-1A
SAIBs · 2 on file · advisory, not mandatory
Supplemental type certificates · 55 on file
- 08/04/2025 STC SR02796SE Installation of Human External Cargo (HEC) system Boost Systems LLC DRS ↗
- 02/06/2025 STC SH8609SW Fabrication of Isolair Eliminator II Model 4600-205 fire fighting system. Isolair Inc. DRS ↗
- 02/06/2025 STC SR01776SE Fabrication, installation, and maintenance of the Isolair Helicopters, Inc., Model 9002 High Cross tubes Isolair Inc. DRS ↗
- 06/25/2024 STC SR02796SE Installation of Human External Cargo (HEC) system Boost Systems LLC DRS ↗
- 02/08/2023 STC SR09176RC Modification of the vertical fin spar Midwest Aerospace TC LLC DRS ↗
- 02/08/2023 STC SR09224RC Modification of the lift beam on the Model UH-1H Midwest Aerospace TC LLC DRS ↗
- 03/09/2022 STC SR00713SE Installation of Onboard Systems International Cargo Hook Kit Onboard Systems International DRS ↗
- 08/04/2021 STC SR02475SE Installation of a Tailboom Motion Detection System Aircraft Structural Repair Inc. DRS ↗
- 10/07/2020 STC SR02492LA Installation of a Helicopter Technology Company main rotor blade assembly Helicopter Technology Co DRS ↗
- 03/27/2020 STC SH8609SW Fabrication of Isolair Eliminator II Model 4600-205 fire fighting system. Isolair Inc. DRS ↗
- 06/26/2019 STC SR00713SE Installation of Onboard Systems International Cargo Hook Kit Onboard Systems International DRS ↗
- 05/03/2019 STC SR02641SE Installation of a Service Deck Northwest Heli-Structures Inc DRS ↗
- 08/23/2018 STC SR00929SE Fabrication of tail boom mounted strakes. BLR Aerospace LLC. DRS ↗
- 08/23/2018 STC SR01470SE Fabrication and Installation of Fast Fin System. BLR Aerospace LLC. DRS ↗
- 10/03/2017 STC SR03408CH Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103 Airwolf Aerospace LLC DRS ↗
- 07/24/2017 STC SR02413LA Installation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000 AKV Inc. DRS ↗
- 05/10/2017 STC SR03408CH Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103 Airwolf Aerospace LLC DRS ↗
- 05/04/2017 STC SR00713SE Installation of Onboard Systems International Cargo Hook Kit Onboard Systems International DRS ↗
- 12/14/2016 STC SR02413LA Installation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000 AKV Inc. DRS ↗
- 07/07/2016 STC ST04270AT Install the VTOL ASSALT V3 Windscreen Laminate Kit VTOL LLC DRS ↗
- 04/28/2016 STC SR03408CH Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103 Airwolf Aerospace LLC DRS ↗
- 03/17/2016 STC SR02413LA Installation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000 AKV Inc. DRS ↗
- 03/07/2016 STC SR00767SE Fabrication of Helipro spar replacement system Vector Aerospace Helicopter Services USA Inc. DRS ↗
- 02/29/2016 STC SR02475SE Installation of a Tailboom Motion Detection System Aircraft Structural Repair, Inc. DRS ↗
- 02/04/2016 STC SR00767SE Fabrication and installation of Helipro spar replacement system Acrohelipro Global Services USA Inc. DRS ↗
- 12/11/2015 STC SR02413LA Installation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000 AKV Inc. DRS ↗
- 10/08/2015 STC SR02492LA Installation of a Helicopter Technology Company main rotor blade assembly Helicopter Technology Co DRS ↗
- 06/08/2015 STC SR02492LA Installation of a Helicopter Technology Company main rotor blade assembly Helicopter Technology Co DRS ↗
- 01/26/2015 STC SR03408CH Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103 Airwolf Aerospace LLC DRS ↗
- 01/14/2015 STC SR02394AK Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system Seaplanes North LLC DRS ↗
+ 25 more STCs on file
PMA replacement parts · 4 on file
- 205-D-1001-11#https://drs.faa.gov/browse/excelExternalWindow/1177CF5636FE451986257C27005675AB.0001## Mounting Adapter Aft Posn Light, Fast Fin, Bell 205/212/412 BLR Aerospace LLC replaces Modification Part
- 205-D-1001-13#https://drs.faa.gov/browse/excelExternalWindow/AA0242B85874D0EB86257C27005675AC.0001## Lamp Mount Base, NVG BLR Aerospace LLC replaces Modification Part
- 200-088-10200-088-11200-089-10200-089-11200-089-20200-089-21200-089-22200-089-23200-089-24200-089-25200-089-26200-089-27#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193183346320220811112057.0001## UH-1 Suspension System w/ Keeperless Hook Onboard Systems International replaces Modification Part
- SKCP3303-1#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID568763130202202231246540.0001## KAflex® Driveshaft Main Drive UH-1 Kamatics Corporation replaces SKCP2281-103
Advisory circulars & Federal Register
Advisory circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register · Parts 91 & 43
- 2026-09-14 Use of Certain Restricted Category Aircraft for the Transport of Firefighters for Wildfire Suppression FR ↗
- 2026-07-31 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
- 2026-07-02 Enabling Supersonic Overland Flight FR ↗
- 2026-07-01 Mechanic Certification: Inspection Rating and Recent Experience Requirements FR ↗
- 2026-06-30 Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility; Extension of Comment Period FR ↗
Sources
- FAA Aircraft Registry ↗ Refreshed Apr 27, 2026 Available
- NTSB CAROL ↗ Refreshed Jun 10, 2026 Available
- Federal Register (FAA Airworthiness Directives) ↗ Refreshed Apr 27, 2026 Available