Rotorcraft · P&W CANADA PT6T-6 · as of Sep 21, 2026
Resources Engine · Pratt & Whitney Canada ↗ Search FAA TCDS ↗
Distribution · currently registered
By state (top 10)
- CA 66.7% 2
- TX 33.3% 1
By decade of manufacture
- 1950s 66.7% 2
- 1960s 33.3% 1
NTSB records
2 event(s) on file. Showing the most recent 2.
- Sep 11, 2019 N1168U Azusa, California NTSB docket ↗
- Apr 14, 1989 N1168U SANTA ANA, California Minor NTSB docket ↗
Airworthiness directives
No matching airworthiness directives are on file for this make and model in the Federal Register.
Type certificate data sheets · 1 match in the FAA catalog
- 1H11 Sikorsky Aircraft Corporation Current Rev 18 · 12/29/1988
Models: S-58J, S-58FT, S-58C, S-58A + 11 more
Supplemental type certificates · 40 on file
- 02/21/2023 STC SR04549AT Conversion of the Pratt & Whitney PT6T-3 to the PT6T-3B configuration Centerpointe Aerospace DRS ↗
- 11/17/2022 STC SR04549AT Conversion of the Pratt & Whitney PT6T-3 to the PT6T-3B configuration per Pratt & Whitney Canada Service Bulletin No. PT6T-72-5252 Asia-Pacific Engineering Consulting Services DRS ↗
- 10/07/2021 STC SH5780NM Fabrication of Onboard Systems model E-46 cargo hook load weigh system. Onboard Systems International DRS ↗
- 12/17/2020 STC SR02704SE Installation and maintenance of the Sunspot 36 and 46 series lights AeroLED's Holdings LLC DRS ↗
- 12/17/2020 STC SR02704SE Installation and maintenance of the Sunspot 36 and 46 series lights AeroLEDS LLC DRS ↗
- 11/03/2020 STC SR04483CH Installation of NASI NREM18M Air Conditioning Module National Aircraft Service Inc. (NASI) DRS ↗
- 05/29/2019 STC SR00359BO Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies DRS ↗
- 11/28/2016 STC SR00359BO Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Engineering Co Inc 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 ↗
- 03/19/2014 STC SR03310CH Installation of NASI Air Conditioning Module National Aircraft Service Inc DRS ↗
- 05/23/2012 STC SR02394AK Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system Floats Alaska LLC DRS ↗
- 03/15/2012 STC SR02394AK Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system per Installation Instructions LED03-20R, Rev. IR, dated October 27, 2010. Floats Alaska LLC DRS ↗
- 02/21/2012 STC SH3319NM Installation of Precise Pulselite Control System Precise Flight Inc DRS ↗
- 12/09/2009 STC SA2693NM (PAGE 2) Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc. DRS ↗
- 11/07/2003 STC SH3319NM Installation of Precise Pulselite Control Unit in the Landing/Taxi/Recognition Visual Control Light System. Precise Flight Inc DRS ↗
- 12/03/2001 STC SH3319NM Installation of Precise Pulselite Control Unit in the Landing/Taxi/Recognition Visual Control Light System. Precise Flight Inc DRS ↗
- 12/03/1998 STC SR00968CH Reduce take-off gross weight from 13,000 to 12,500 lbs. During passenger and internal cargo carrying operations. (S-58ET s/n 58-855) Midwest Truxton International, Inc. DRS ↗
- 06/30/1994 STC SR00042SE Modification to allow the use of Configuration II aircraft performance limits. Glacier Helicopter Inc DRS ↗
- 04/22/1994 STC SR00042SE Modification to allow the use of Configuration II aircraft performance limits. Glacier Helicopter, Inc DRS ↗
- 03/09/1993 STC SA1626NM Page 2 Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series) Electronics International DRS ↗
- 10/13/1992 STC SH5780NM Fabrication of Onboard Systems model E-46 cargo hook load weigh system. Onboard Systems DRS ↗
- 04/29/1991 STC SH2212NM Installation of Silver Instruments Fueltron IIIPT-IGS, IIIPT-IPS, IIIPT-ILS, IIIPT-IKS digital fuel flow indicating system. Arnav Systems Inc DRS ↗
- 08/02/1990 STC SH770NW Installation of a weighing system. Onboard Systems DRS ↗
- 11/29/1989 STC SH4570NM Approval for takeoffs and landings up to and including 12,000 feet density altitude is authorized. Air One Helicopters, Inc DRS ↗
- 10/13/1989 STC SA4302NM (PAGE 2) Installation of Electronics Int'l digital automatic engine analyzer. Electronics International DRS ↗
- 10/13/1989 STC SA4302NM (PAGE 1) Installation of Electronics Int'l digital automatic engine analyzer. Electronics International DRS ↗
- 05/26/1989 STC SH4539NM Establish a nine passenger seat configuration. Air One Helicopters, Inc DRS ↗
- 04/18/1989 STC SH1010GL Reduction of standard passenger seating from sixteen to nine seats or less. Brainerd Helicopters, Inc DRS ↗
- 09/22/1988 STC SH4507NM Approval for takeoffs and landings up to and including 12,000 feet densiy altitude is authorized. Los Angeles County Sheriff's Department Aero Bureau DRS ↗
- 09/19/1988 STC SH464NE Installation of an Alternate Float Bottle System. California Helicopter International DRS ↗
+ 10 more STCs on file
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