Rotorcraft · ALLISON 250-C20 SER · as of Sep 21, 2026
Resources Engine · Rolls-Royce M250 (Allison) ↗ Search FAA TCDS ↗
Distribution · currently registered
By state (top 10)
- PA 60.0% 3
- ND 40.0% 2
By decade of manufacture
- 1970s 80.0% 4
- Unknown 20.0% 1
NTSB records
2 event(s) on file. Showing the most recent 2.
- Jul 31, 2011 N82855 Rushford, Minnesota NTSB docket ↗
- May 29, 2006 N16JD Muddy Gap, Wyoming NTSB docket ↗
Airworthiness directives
6 directive(s) on file. Showing the most recent 6.
- Nov 14, 2014
Airworthiness Directives; Various Restricted Category Helicopters
We are superseding Airworthiness Directive (AD) 2012-14-11 for Arrow Falcon Exporters, Inc. (AFE), Rotorcraft Development Corporation (RDC), and San Joaquin Helicopters (SJH) Model OH-58A, OH- 58A+, and OH-58C helicopters. AD 2012-14-11 required inspecting the main rotor mast (mast) for a crack. This new AD expands th…
- Jun 2, 2014
Airworthiness Directives; Various Restricted Category Helicopters
We propose to supersede airworthiness directive (AD) 2012-14- 11 for Arrow Falcon Exporters, Inc. (AFE), Rotorcraft Development Corporation (RDC), and San Joaquin Helicopters (SJH) Model OH-58A, OH- 58A+, and OH-58C helicopters. AD 2012-14-11 currently requires inspecting the main rotor mast (mast) for a crack. Since…
- Jul 23, 2012
Airworthiness Directives; Various Restricted Category Helicopters
We are adopting a new airworthiness directive (AD) for Arrow Falcon Exporters, Inc. (AFE), Rotorcraft Development Corporation (RDC), and San Joaquin Helicopters (SJH) Model OH-58A, OH-58A+, and OH-58C helicopters to require inspecting the main rotor mast (mast) for a crack. This AD is prompted by two reported failures…
- Aug 3, 2006
Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) (RRC) 250-B and 250-C Series Turboshaft and Turboprop Engines
The FAA is superseding an existing airworthiness directive (AD) for RRC 250-B and 250-C series turboshaft and turboprop engines. That AD currently requires a onetime inspection of the fuel nozzle screen for contamination, and if contamination is found, inspection and cleaning of the entire aircraft fuel system before…
- Jun 21, 2006
Airworthiness Directives; Rolls-Royce Corporation (Formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) 250-B and 250-C Series Turboprop and Turboshaft Engines
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce Corporation 250-B and 250-C series turboprop and turboshaft engines with certain part numbers (P/Ns) of gas producer rotor assembly tie bolts manufactured by EXTEX Ltd., Pacific Sky Supply Inc., Rolls- Royce Corporation (RRC), and Superior Air Part…
- Nov 10, 2005
Airworthiness Directives; Rolls-Royce Corporation (formerly Allison Engine Company, Allison Gas Turbine Division, and Detroit Diesel Allison) 250-B and 250-C Series Turboprop and Turboshaft Engines
The FAA proposes to adopt a new airworthiness directive (AD) for Rolls-Royce Corporation 250-B and 250-C series turboprop and turboshaft engines with certain part numbers (P/Ns) of gas producer rotor assembly tie bolts manufactured by EXTEX Ltd., Pacific Sky Supply Inc., Rolls-Royce Corporation (RRC), and Superior Air…
Type certificate data sheets · 1 match in the FAA catalog
- R00006DE Garlick Helicopters Inc. Historical Rev 2 · 08/29/2003
Models: OH-58A+, OH-58A, OH-58C
Supplemental type certificates · 5 on file
- 08/23/2018 STC SR01727SE Fabrication of Boundary Layer Research (BLR) Dual Tail Boom Strake System BLR Aerospace LLC. DRS ↗
- 11/23/2009 STC SR01727SE Fabrication of Boundary Layer Research (BLR) Dual Tail Boom Strake System BLR Aerospace LLC. DRS ↗
- 08/14/2007 STC SR00756NY Installation of a Avionics Specialities, Inc Power Analyzer and Recorder (PAR) P/N SL17080. Aerosonic Corporation DRS ↗
- 06/11/2007 STC SR00180SE Installation of engine air filter. Filtration Development Washington LLC DRS ↗
- 12/18/2006 STC SR01727SE Fabrication of Boundary Layer Research (BLR) Dual Tail Boom Strake System Boundary Layer Research Inc DRS ↗
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 ↗
Registered N-numbers · 5
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N16JD | PA | 1971 | ● | Look up ↗ |
| N1851D | ND | 1972 | · | Look up ↗ |
| N1851W | ND | 1971 | · | Look up ↗ |
| N637HA | PA | 1970 | · | Look up ↗ |
| N82855 | PA | — | ● | Look up ↗ |
Source — FAA Aircraft Registry
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