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

Pratt & Whitney PT6A-28

25 aircraft on the U.S. register carry a Pratt & Whitney PT6A-28 engine, rated at about 680 horsepower. The Beechcraft 65 is the model most often fitted with it (12 aircraft). The aircraft carrying it were built between 1966 and 2008.

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 PT6A-28. FAA spelling: PT6A-28.

Fitted to model families

Beechcraft 6512Beechcraft E-90 King Air E905Beechcraft 1002Piper PA-31 Navajo and Chieftain2Beechcraft 99 Airliner2Beechcraft C90 King Air C901Eads Pzl Warszawa-Okecie Sa PZL-1041

Beechcraft 65 · Beechcraft E-90 King Air E90 · Beechcraft 100 · Piper PA-31 Navajo and Chieftain · Beechcraft 99 Airliner · Beechcraft C90 King Air C90 · Eads Pzl Warszawa-Okecie Sa PZL-104

Where they are owner's state

Virginia12Utah2Texas2Arkansas2Oklahoma1North Carolina1Montana1Missouri1Minnesota1Delaware1

Kind of aircraft

Turboprops25 (100%)

When the aircraft were built by decade

0471014619601419703198012000

What the FAA has certified, ordered and been told about the Pratt & Whitney PT6A-28 the component layer

The design is held under 1 type certificate (E2NE, held by Pratt & Whitney Division). The FAA has issued 2 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 944 failure reports with the FAA since 1995, 44 of them in the last ten years.

FAA orders 2 airworthiness directives · newest first

1980-04-1880-08-12 · Fuel Pump Drive Coupling Splines · engine
1977-04-0175-06-01 · Gearbox Deterioration · engine

Failure reports 944 since · what operators and shops told the FAA

021426384950005101521124

Parts most often reported as the reports name them

Engine39Actuator33Skin28Switch27Wire27Bolt22Motor21Torque Tube20Line18Bearing15

Latest reports

2024-09-26Gps: defective
2022-08-31Door: unsecure
2022-07-14Brake Assy: broken
2021-11-17Engine: failed
2021-10-21Doubler: cracked

Certificates and bulletins

E2NEType certificate held by Pratt & Whitney Division · 4 models listed · revised April 15, 1975

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
Biggest operators
Airworthiness

These connections as data: /graph/engine/pratt-whitney-pt6a-28.json · about the eFlight graph.

Aircraft newest certificates first · 25

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N156G Beech
E-90
Fixed-wing, multi-engine Alliance Air Parts Acquisitions CORP
Oklahoma City, Oklahoma
Standard 2026-02-17 ValidFAA registration status code V: Valid registration. All codes
N90PH Beech
E-90
Fixed-wing, multi-engine Triple R Spraying LLC
Dumas, Texas
Special flight permit 2025-07-11 ValidFAA registration status code V: Valid registration. All codes
N904H Beech
E-90
Fixed-wing, multi-engine Bohanon Air LLC
Jonesboro, Arkansas
Standard 2024-03-18 ValidFAA registration status code V: Valid registration. All codes
N13FP Beech
100
Fixed-wing, multi-engine Safeco Leasing LLC
Port Alsworth, Alaska
Standard 2023-10-12 ValidFAA registration status code V: Valid registration. All codes
N827KB Beech
E-90
Fixed-wing, multi-engine Arkansas Air Partners LLC
Jonesboro, Arkansas
Standard 2022-11-16 ValidFAA registration status code V: Valid registration. All codes
N3GC Beech
C90
Fixed-wing, multi-engine Texas Air & Space Museum
Amarillo, Texas
Experimental 2019-12-31 ValidFAA registration status code V: Valid registration. All codes
N111JF Piper
PA-31T
Fixed-wing, multi-engine Joyce Aviation INC
Winston Salem, North Carolina
Standard 2019-07-31 ValidFAA registration status code V: Valid registration. All codes
N100BA Beech
99
Fixed-wing, multi-engine Bemidji Aviation Services INC
Bemidji, Minnesota
Standard 2019-02-28 ValidFAA registration status code V: Valid registration. All codes
N118MD Beech
99A
Fixed-wing, multi-engine Alpine Aviation INC
Provo, Utah
Standard 2018-04-16 ValidFAA registration status code V: Valid registration. All codes
N123T Eads Pzl Warszawa-Okecie Sa
PZL-104MA WILGA 2000
Fixed-wing, single engine Individual owner
Utah
Experimental 2015-10-02 ValidFAA registration status code V: Valid registration. All codes
N87Q Beech
65-A90-1
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Multiple 2012-07-16 ValidFAA registration status code V: Valid registration. All codes
N7198Y Beech
65-A90-4
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Restricted 2011-04-14 ValidFAA registration status code V: Valid registration. All codes
N84G Beech
65-A90-1
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Experimental 2011-04-14 ValidFAA registration status code V: Valid registration. All codes
N92B Beech
65-A90-1
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Restricted 2011-04-14 ValidFAA registration status code V: Valid registration. All codes
N96S Beech
65-A90-4
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Multiple 2011-04-14 ValidFAA registration status code V: Valid registration. All codes
N97D Beech
65-A90-1
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Restricted 2011-04-14 ValidFAA registration status code V: Valid registration. All codes
N90D Beech
65-A90-4
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Multiple 2011-04-13 ValidFAA registration status code V: Valid registration. All codes
N93J Beech
65-A90-1
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Multiple 2011-04-13 ValidFAA registration status code V: Valid registration. All codes
N95S Beech
65-A90-1
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Multiple 2011-04-13 ValidFAA registration status code V: Valid registration. All codes
N113SH Beech
100
Fixed-wing, multi-engine Individual owner
Montana
Standard 2011-04-11 ValidFAA registration status code V: Valid registration. All codes
N998LM Piper
PA-31T
Fixed-wing, multi-engine Armstrong Airlines INC
Dover, Delaware
Standard 2008-05-28 ValidFAA registration status code V: Valid registration. All codes
N80Y Beech
65-A90-1
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Multiple 2006-12-28 ValidFAA registration status code V: Valid registration. All codes
N91S Beech
65-A90-4
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Restricted 2006-12-28 ValidFAA registration status code V: Valid registration. All codes
N3700M Beech
E-90
Fixed-wing, multi-engine Boeing CO
Berkeley, Missouri
Experimental 2002-01-31 ValidFAA registration status code V: Valid registration. All codes
N32P Beech
65-A90-1
Fixed-wing, multi-engine Dynamic Avlease INC
Bridgewater, Virginia
Restricted 1998-02-17 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.