The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 7, 2026

Pratt & Whitney R-985 series

1,594 aircraft on the U.S. register carry a Pratt & Whitney R-985 series engine, rated at about 450 horsepower. The Boeing A75 Stearman Kaydet is the model most often fitted with it (236 aircraft). The aircraft carrying it were built between 1929 and 2013.

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 R-985 series. FAA spelling: R-985 SERIES.

When the aircraft were built by decade

By decade built, as a table
aircraft
192013
193063
1940622
1950318
1960114
1970105
198010
199033
20006
20102

What the FAA has certified, ordered and been told about the Pratt & Whitney R-985 series the component layer

No FAA order in the current files names this engine series. Operators and repair shops have filed 80 failure reports with the FAA since 1995, 23 of them in the last ten years.

Failure reports 80 since · what operators and shops told the FAA

024689500051015217
Failure reports by year, as a table
reports
953
962
973
981
994
002
016
028
035
047
056
063
077
082
095
103
112
122
132
142
152
161
172

Parts most often reported as the reports name them

Cylinder8Engine6Bulkhead3Piston3Pump3Spar3Bearing2Bolt2Carburetor2Control Cable2
Parts most reported, as a table
reports
Cylinder8
Engine6
Bulkhead3
Piston3
Pump3
Spar3
Bearing2
Bolt2
Carburetor2
Control Cable2

Latest reports

2017-10-06Bearing: failed
2017-07-20Drag Link: damaged
2016-07-20Pushrod: broken
2015-08-18Fitting: corroded
2015-04-03Balance Weight: loose

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

The whole map of how records connect · these connections as data: /graph/engine/pratt-whitney-r-985-series.json.

Aircraft newest certificates first · 1,594

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N44607 Beech
D18S
Fixed-wing, multi-engine Shepard Group LLC
Mena, Arkansas
Standard 2017-02-08 ValidFAA registration status code V: Valid registration. All codes
N1850 Beech
C-45H
Fixed-wing, multi-engine North Shore Aviation Services CORP
Waialua, Hawaii
Special flight permit 2017-02-06 ValidFAA registration status code V: Valid registration. All codes
N591Y Grumman
G-164
Fixed-wing, single engine Individual owner
Texas
Experimental 2017-02-02 ValidFAA registration status code V: Valid registration. All codes
N4766V Boeing
A75
Fixed-wing, single engine Aero Classics LLC
Lancaster, California
Multiple 2017-01-09 ValidFAA registration status code V: Valid registration. All codes
N9466H Beech
D17S
Fixed-wing, single engine Individual owner
Texas
Standard 2016-12-30 ValidFAA registration status code V: Valid registration. All codes
N68122 Howard Aircraft
DGA-15P
Fixed-wing, single engine Aircraft Marketing & Leasing LLC
Fairbanks, Alaska
Standard 2016-12-14 ValidFAA registration status code V: Valid registration. All codes
N90502 Beech
D18S
Fixed-wing, multi-engine Individual owner
Texas
Standard 2016-11-29 ValidFAA registration status code V: Valid registration. All codes
N17985 Beech
D17S
Fixed-wing, single engine Black Cat Aviation LLC
Indianapolis, Indiana
Standard 2016-11-28 ValidFAA registration status code V: Valid registration. All codes
N49936 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
New Jersey
Standard 2016-11-17 ValidFAA registration status code V: Valid registration. All codes
N8134G Dehavilland
DHC-2 MK.I
Fixed-wing, single engine Perrycook Flight Services LLC
Gig Harbor, Washington
Standard 2016-11-10 ValidFAA registration status code V: Valid registration. All codes
N5QQ Beech
D18S
Fixed-wing, multi-engine Co-owned owner
California
Standard 2016-11-09 ValidFAA registration status code V: Valid registration. All codes
N90265 Beech
SNB-5
Fixed-wing, multi-engine Legacy Flight Museum
Rexburg, Idaho
Standard 2016-11-03 ValidFAA registration status code V: Valid registration. All codes
N1117F Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Island Wings Air Service LLC
Ketchikan, Alaska
Standard 2016-10-20 ValidFAA registration status code V: Valid registration. All codes
N50167 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Ohio
Standard 2016-10-14 ValidFAA registration status code V: Valid registration. All codes
N11YA Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Individual owner
Alaska
Standard 2016-10-13 ValidFAA registration status code V: Valid registration. All codes
N1018F Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Lind Leasing LLC
Seattle, Washington
Standard 2016-10-11 ValidFAA registration status code V: Valid registration. All codes
N6535 Grumman
G-164A
Fixed-wing, single engine Individual owner
Texas
Restricted 2016-09-20 ValidFAA registration status code V: Valid registration. All codes
N75697 Boeing
E75N1
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2016-09-15 ValidFAA registration status code V: Valid registration. All codes
N197L Beech
D18S
Fixed-wing, multi-engine American Airpower Heritage Flying Museum
Dallas, Texas
Standard 2016-09-06 ValidFAA registration status code V: Valid registration. All codes
N2021S Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Jersey Devil Dusters LLC
Southampton, New Jersey
Restricted 2016-09-06 ValidFAA registration status code V: Valid registration. All codes
N7335C Beech
AT-11
Fixed-wing, multi-engine Midland Army Airfield Foundation
Midland, Texas
Standard 2016-08-24 ValidFAA registration status code V: Valid registration. All codes
N217SD Beech
D17S
Fixed-wing, single engine Sennas Ghost LLC
Missoula, Montana
Standard 2016-08-23 ValidFAA registration status code V: Valid registration. All codes
N9271H Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Nevada
Standard 2016-08-22 ValidFAA registration status code V: Valid registration. All codes
N314HA Dehavilland
BEAVER U-6
Fixed-wing, single engine Backcountry Air LLC
Wasilla, Alaska
Standard 2016-08-03 ValidFAA registration status code V: Valid registration. All codes
N53488 Boeing
A75N1(PT17)
Fixed-wing, single engine Allen Chorman & Son INC
Milton, Delaware
Standard 2016-08-02 ValidFAA registration status code V: Valid registration. All codes
N56415 Boeing
A75N1(PT17)
Fixed-wing, single engine N Ranch LLC
Missoula, Montana
Restricted 2016-07-26 ValidFAA registration status code V: Valid registration. All codes
N68262 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Alaska
Standard 2016-07-26 ValidFAA registration status code V: Valid registration. All codes
N813 Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2016-07-26 ValidFAA registration status code V: Valid registration. All codes
N9873H Beech
D17S
Fixed-wing, single engine Individual owner
Idaho
Standard 2016-07-19 ValidFAA registration status code V: Valid registration. All codes
N737SW Beech
E18S
Fixed-wing, multi-engine Aztec Worldwide Airlines INC
Wilmington, Delaware
Standard 2016-07-18 ValidFAA registration status code V: Valid registration. All codes
N44723 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Oregon
Standard 2016-06-16 ValidFAA registration status code V: Valid registration. All codes
N67191 Howard Aircraft
DGA-15P
Fixed-wing, single engine Yanks Air Museum
Baldwin Park, California
Standard 2016-06-01 ValidFAA registration status code V: Valid registration. All codes
N54841 Consolidated Vultee
BT-13A
Fixed-wing, single engine N54841 LLC
Granite Falls, Minnesota
Standard 2016-05-19 ValidFAA registration status code V: Valid registration. All codes
N4043 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Colorado
Standard 2016-05-17 ValidFAA registration status code V: Valid registration. All codes
N3111 Beech
D18S
Fixed-wing, multi-engine Co-owned owner
Minnesota
Standard 2016-05-11 ValidFAA registration status code V: Valid registration. All codes
N9525H Consolidated Vultee
SNV-1
Fixed-wing, single engine National Museum of World War II Aviation
Colorado Springs, Colorado
Standard 2016-04-26 ValidFAA registration status code V: Valid registration. All codes
N48625 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Alabama
Restricted 2016-04-19 ValidFAA registration status code V: Valid registration. All codes
N600ZE Grumman
G-21A
Fixed-wing, multi-engine Mike Rinker Aircraft LLC
Union City, Tennessee
Standard 2016-04-07 ValidFAA registration status code V: Valid registration. All codes
N232KT Dehavilland
DHC-2 MK 1
Fixed-wing, single engine Rustair INC
Anchorage, Alaska
Standard 2016-03-23 ValidFAA registration status code V: Valid registration. All codes
N5959F Beech
H-18
Fixed-wing, multi-engine Mid Atlantic Air Museum
Reading, Pennsylvania
Standard 2016-03-16 ValidFAA registration status code V: Valid registration. All codes
N43446 Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Talarik Air LLC
King Salmon, Alaska
Multiple 2016-03-05 ValidFAA registration status code V: Valid registration. All codes
N649B Beech
D18S
Fixed-wing, multi-engine Spirit Engineering INC
Grand Junction, Colorado
Standard 2016-03-01 ValidFAA registration status code V: Valid registration. All codes
N135AR Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Talarik Air LLC
King Salmon, Alaska
Restricted 2016-02-29 ValidFAA registration status code V: Valid registration. All codes
N283AR Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Talarik Air LLC
King Salmon, Alaska
Standard 2016-02-29 ValidFAA registration status code V: Valid registration. All codes
N620RS Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Aeschliman Arlie W
Tribune, Kansas
Restricted 2016-02-17 ValidFAA registration status code V: Valid registration. All codes
N9540 Beech
3NM
Fixed-wing, multi-engine Individual owner
California
Standard 2016-02-12 ValidFAA registration status code V: Valid registration. All codes
N5200N Boeing
E75N1
Fixed-wing, single engine Individual owner
New York
Restricted 2016-02-04 ValidFAA registration status code V: Valid registration. All codes
N73583 Boeing
B75N1
Fixed-wing, single engine Individual owner
Wyoming
Standard 2016-01-26 ValidFAA registration status code V: Valid registration. All codes
N108KS Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Northern Waters LLC
Livingston, Montana
Standard 2016-01-22 ValidFAA registration status code V: Valid registration. All codes
N49GB Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Individual owner
Alaska
Multiple 2016-01-21 ValidFAA registration status code V: Valid registration. All codes
N7821 Grumman
G-21A
Fixed-wing, multi-engine Yanks Air Museum
Baldwin Park, California
Standard 2016-01-21 ValidFAA registration status code V: Valid registration. All codes
N522Y Grumman
G-164
Fixed-wing, single engine Individual owner
Oklahoma
Restricted 2016-01-19 ValidFAA registration status code V: Valid registration. All codes
N4574N Beech
D17S
Fixed-wing, single engine Stearman Aviation INC
Crawford, Colorado
Standard 2016-01-08 ValidFAA registration status code V: Valid registration. All codes
N9918R Beech
G18S
Fixed-wing, multi-engine Individual owner
Virginia
Standard 2015-12-31 ValidFAA registration status code V: Valid registration. All codes
N985MW Wolf Steven F
CYCLONE
Fixed-wing, single engine Individual owner
Mississippi
Experimental 2015-12-21 ValidFAA registration status code V: Valid registration. All codes
N265E Beech
D17S
Fixed-wing, single engine Staggerwing 265E LLC
Wilmington, Delaware
Standard 2015-12-14 ValidFAA registration status code V: Valid registration. All codes
N68824 Boeing
PT-13D
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2015-12-12 ValidFAA registration status code V: Valid registration. All codes
N4369 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Lewis Flying & Maint Svc INC
Morse, Louisiana
Restricted 2015-12-11 ValidFAA registration status code V: Valid registration. All codes
N2931W Weatherly
201A
Fixed-wing, single engine Jersey Devil Dusters LLC
Southampton, New Jersey
Restricted 2015-12-09 ValidFAA registration status code V: Valid registration. All codes
N943X Grumman
G-164A
Fixed-wing, single engine Individual owner
Oklahoma
Restricted 2015-12-04 ValidFAA registration status code V: Valid registration. All codes
N9669N Beech
E18S-9700
Fixed-wing, multi-engine Individual owner
Florida
Standard 2015-12-01 ValidFAA registration status code V: Valid registration. All codes
N328JV Dehavilland
DHC-2
Fixed-wing, single engine 212 Investments LLC
Owasso, Oklahoma
Standard 2015-11-19 ValidFAA registration status code V: Valid registration. All codes
N46DG Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Kingfisher Air INC
Kodiak, Alaska
Restricted 2015-11-17 ValidFAA registration status code V: Valid registration. All codes
N64037 Boeing
B75N1
Fixed-wing, single engine Hawks Zero Q3 LLC
Sonoma, California
Standard 2015-11-12 ValidFAA registration status code V: Valid registration. All codes
N479Y Grumman
G-164
Fixed-wing, single engine Gustin Aviation INC
Lewiston, Idaho
Experimental 2015-11-09 ValidFAA registration status code V: Valid registration. All codes
N75544 Beech
D17S
Fixed-wing, single engine Individual owner
California
Standard 2015-10-27 ValidFAA registration status code V: Valid registration. All codes
N51969 Beech
D17S
Fixed-wing, single engine Individual owner
Nevada
Standard 2015-10-26 ValidFAA registration status code V: Valid registration. All codes
N9066H Boeing
E75N1
Fixed-wing, single engine Individual owner
Louisiana
Standard 2015-10-19 ValidFAA registration status code V: Valid registration. All codes
N293BR Holste Max
1521M
Fixed-wing, single engine Individual owner
Wyoming
Experimental 2015-10-16 ValidFAA registration status code V: Valid registration. All codes
N895X Grumman
G-164A
Fixed-wing, single engine Gustin Aviation INC
Lewiston, Idaho
Restricted 2015-10-06 ValidFAA registration status code V: Valid registration. All codes
N3929B Boeing
E75
Fixed-wing, single engine Eastern Stearman INC Trustee
Leesburg, Virginia
Restricted 2015-09-29 ValidFAA registration status code V: Valid registration. All codes
N62230 Dehavilland
DHC-2
Fixed-wing, single engine Rainbow River Lodge Aviation LLC
Sandy, Utah
Standard 2015-09-23 ValidFAA registration status code V: Valid registration. All codes
N7BS Beech
E18S
Fixed-wing, multi-engine Runyon Aviation LLC
Fort Worth, Texas
Standard 2015-09-01 ValidFAA registration status code V: Valid registration. All codes
N6623 Beech
D18S
Fixed-wing, multi-engine Individual owner
California
Standard 2015-08-11 ValidFAA registration status code V: Valid registration. All codes
N73Q Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Gdfm LLC
Sandpoint, Idaho
Standard 2015-08-03 ValidFAA registration status code V: Valid registration. All codes
N12UA Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Individual owner
Alaska
Standard 2015-06-30 ValidFAA registration status code V: Valid registration. All codes
N62955 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Indiana
Standard 2015-06-16 ValidFAA registration status code V: Valid registration. All codes
N291VW Grumman
G-21A
Fixed-wing, multi-engine Co-owned owner
California
Standard 2015-06-10 ValidFAA registration status code V: Valid registration. All codes
N57E Howard Aircraft
DGA-11
Fixed-wing, single engine Individual owner
California
Standard 2015-05-08 ValidFAA registration status code V: Valid registration. All codes
N4646N Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Washington
Standard 2015-04-23 ValidFAA registration status code V: Valid registration. All codes
N67687 Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Haskell CORP
Bellingham, Washington
Standard 2015-04-09 ValidFAA registration status code V: Valid registration. All codes
N52520 Boeing
E75
Fixed-wing, single engine Individual owner
Indiana
Restricted 2015-04-08 ValidFAA registration status code V: Valid registration. All codes
N59842 Consolidated Vultee
BT-13A
Fixed-wing, single engine Valiant Effort LLC
Monte Vista, California
Standard 2015-04-08 ValidFAA registration status code V: Valid registration. All codes
N22410 Howard Aircraft
DGA-15P
Fixed-wing, single engine Co-owned owner
Florida
Standard 2015-04-07 ValidFAA registration status code V: Valid registration. All codes
N9039R Boeing
A75N1(PT17)
Fixed-wing, single engine Waypoint Services LLC
Missoula, Montana
Experimental 2015-03-23 ValidFAA registration status code V: Valid registration. All codes
N95DG Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Intricate Bay Operating LLC
Saylorsburg, Pennsylvania
Standard 2015-03-20 ValidFAA registration status code V: Valid registration. All codes
N213BD Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Florida
Standard 2015-03-12 ValidFAA registration status code V: Valid registration. All codes
N54565 Boeing
A75N1(PT17)
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2015-03-09 ValidFAA registration status code V: Valid registration. All codes
N6772Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Vincent Flying Service INC
Kaplan, Louisiana
Restricted 2015-02-26 ValidFAA registration status code V: Valid registration. All codes
N955X Grumman
G-164A
Fixed-wing, single engine Individual owner
California
Restricted 2015-02-13 ValidFAA registration status code V: Valid registration. All codes
N99800 Beech
H-18
Fixed-wing, multi-engine Rugged Investments One LLC
North Miami, Florida
Standard 2015-02-11 ValidFAA registration status code V: Valid registration. All codes
N7034Y Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Maine
Standard 2015-02-09 ValidFAA registration status code V: Valid registration. All codes
N42429 Howard Aircraft
DGA-15P
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2015-01-30 ValidFAA registration status code V: Valid registration. All codes
N5217G Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine River Front Akn LLC
Anchorage, Alaska
Standard 2015-01-29 ValidFAA registration status code V: Valid registration. All codes
N4616N Howard Aircraft
DGA-15P
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2015-01-12 ValidFAA registration status code V: Valid registration. All codes
N67736 Beech
D17S
Fixed-wing, single engine Co-owned owner
California
Standard 2015-01-08 ValidFAA registration status code V: Valid registration. All codes
N1828D Beech
D18S
Fixed-wing, multi-engine Individual owner
Nevada
Standard 2015-01-07 ValidFAA registration status code V: Valid registration. All codes
N75808 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Idaho
Standard 2014-12-16 ValidFAA registration status code V: Valid registration. All codes
N164AP Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Elwood Farms INC
Levelland, Texas
Restricted 2014-12-09 ValidFAA registration status code V: Valid registration. All codes
N60496 Consolidated Vultee
BT-13B (SNV-2)
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 2014-12-04 ValidFAA registration status code V: Valid registration. All codes
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Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.