The U.S. aircraft register, updated daily
Engines · turboprop · data as of October 5, 2026

Pratt & Whitney Canada PT6A-41AG

1 aircraft on the U.S. register carry a Pratt & Whitney Canada PT6A-41AG engine, rated at about 850 horsepower. The Ayres Corporation S-2 is the model most often fitted with it (1 aircraft).

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Pratt & Whitney Canada PT6A-41AG. FAA spelling: PT6A-41AG.

Fitted to model families

Ayres Corporation S-21

Ayres Corporation S-2

Where they are owner's state

New York1

Kind of aircraft

Turboprops1 (100%)

When the aircraft were built by decade

0001111990

What the FAA has certified, ordered and been told about the Pratt & Whitney Canada PT6A-41AG the component layer

The design is held under 1 type certificate (E4EA, held by Pratt & Whitney Canada CORP.). The FAA has issued 1 airworthiness directive (orders that owners must comply with) that name this engine series.

FAA orders 1 airworthiness directives · newest first

1997-03-1497-04-12 · Compressor Bleed-off Valve · engine

Certificates and bulletins

E4EAType certificate held by Pratt & Whitney Canada CORP. · 54 models listed · revised June 16, 2021

Safety bulletins 1 · advice, not orders

2006-03-21NE-06-34 ·

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Airworthiness

These connections as data: /graph/engine/pratt-whitney-canada-pt6a-41ag.json · about the eFlight graph.

Aircraft newest certificates first · 1

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N973CW Ayres Corporation
S2R-T34
Fixed-wing, single engine Rebecca Lynn Flying Service INC
Livingston, New York
Restricted 2014-08-13 ValidFAA registration status code V: Valid registration. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.