The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 8, 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
N48675 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Hershey Flying Service INC
David City, Nebraska
Restricted 2005-05-16 ValidFAA registration status code V: Valid registration. All codes
N524Y Grumman
G-164
Fixed-wing, single engine Southwind Aviatin INC
Maryville, Tennessee
Restricted 2005-05-09 ValidFAA registration status code V: Valid registration. All codes
N327 Grumman
G-21A
Fixed-wing, multi-engine Individual owner
New York
Standard 2005-05-02 ValidFAA registration status code V: Valid registration. All codes
N80308 Beech
G17S
Fixed-wing, single engine Beechcraft Heritage Museum INC
Tullahoma, Tennessee
Standard 2005-04-29 ValidFAA registration status code V: Valid registration. All codes
N45033 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Vintage Aircraft LLC
Leesville, South Carolina
Standard 2005-04-28 ValidFAA registration status code V: Valid registration. All codes
N9KL Grumman
G-21A
Fixed-wing, multi-engine Ozark Management INC
Jefferson City, Missouri
Standard 2005-04-22 ValidFAA registration status code V: Valid registration. All codes
N5180V Beech
C-45H
Fixed-wing, multi-engine Co-owned owner
California
Standard 2005-04-18 ValidFAA registration status code V: Valid registration. All codes
N92WA Beech
E18S
Fixed-wing, multi-engine Individual owner
Arkansas
Standard 2005-04-04 ValidFAA registration status code V: Valid registration. All codes
N59634 Boeing
75
Fixed-wing, single engine Individual owner
Texas
Restricted 2005-03-17 ValidFAA registration status code V: Valid registration. All codes
N45265 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Nevada
Standard 2005-03-10 ValidFAA registration status code V: Valid registration. All codes
N18425 Stinson
SR-9F
Fixed-wing, single engine Individual owner
Idaho
Standard 2005-02-22 ValidFAA registration status code V: Valid registration. All codes
N67458 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2005-01-11 ValidFAA registration status code V: Valid registration. All codes
N65594 Beech
D17S
Fixed-wing, single engine Big Wing Nut INC
Huntington, New York
Standard 2004-12-01 ValidFAA registration status code V: Valid registration. All codes
N9856H Boeing
A75N1(PT17)
Fixed-wing, single engine Vintage Aircraft Sales LLC
Radnor, Ohio
Restricted 2004-11-08 ValidFAA registration status code V: Valid registration. All codes
N1101 Howard Aircraft
DGA-15P
Fixed-wing, single engine Berry Machine & Tool CO INC
Camden, Tennessee
Experimental 2004-10-14 ValidFAA registration status code V: Valid registration. All codes
N888KM Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2004-09-27 ValidFAA registration status code V: Valid registration. All codes
N1949B Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Sail Rock Aviation LLC
Santa Rosa, California
Standard 2004-08-26 ValidFAA registration status code V: Valid registration. All codes
N6669C Beech
AT-11
Fixed-wing, multi-engine Co-owned owner
California
Standard 2004-08-23 ValidFAA registration status code V: Valid registration. All codes
N145J Beech
RC-45J
Fixed-wing, multi-engine Individual owner
Tennessee
Standard 2004-08-13 ValidFAA registration status code V: Valid registration. All codes
N18BJ Beech
D17S
Fixed-wing, single engine Individual owner
California
Standard 2004-07-14 ValidFAA registration status code V: Valid registration. All codes
N17605 Spartan
7W
Fixed-wing, single engine Individual owner
Arizona
Standard 2004-07-07 ValidFAA registration status code V: Valid registration. All codes
N58785 Waco
SRE
Fixed-wing, single engine Sydal Sre LLC
Jackson, Louisiana
Standard 2004-06-24 ValidFAA registration status code V: Valid registration. All codes
N75855 Boeing
E75
Fixed-wing, single engine War Eagles Air Museum
Santa Teresa, New Mexico
Standard 2004-06-21 ValidFAA registration status code V: Valid registration. All codes
N22418 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
California
Standard 2004-06-16 ValidFAA registration status code V: Valid registration. All codes
N9279Z Dehavilland
DHC-2-L-20
Fixed-wing, single engine Snow Mountain Enterprises LLC
Ketchikan, Alaska
Standard 2004-06-04 ValidFAA registration status code V: Valid registration. All codes
N56949 Boeing
A75N1(PT17)
Fixed-wing, single engine Wooden Wings LLC
Metairie, Louisiana
Experimental 2004-04-21 ValidFAA registration status code V: Valid registration. All codes
N56837 Boeing
D75N1
Fixed-wing, single engine Co-owned owner
Minnesota
Standard 2004-04-19 ValidFAA registration status code V: Valid registration. All codes
N66492 Boeing
E75
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2004-04-13 ValidFAA registration status code V: Valid registration. All codes
N8407 Ford
4-AT-E
Fixed-wing, multi-engine Experimental Aircraft Association INC
Oshkosh, Wisconsin
Multiple 2004-03-16 ValidFAA registration status code V: Valid registration. All codes
N2560C Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Restricted 2004-01-08 ValidFAA registration status code V: Valid registration. All codes
N6500K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Scott Flying Service INC
Bono, Arkansas
Restricted 2003-12-29 ValidFAA registration status code V: Valid registration. All codes
N345ZB Avions Max Holste
MH 1521 BROUSSARD
Fixed-wing, single engine Individual owner
Massachusetts
Experimental 2003-12-06 ValidFAA registration status code V: Valid registration. All codes
N57455 Consolidated Vultee
BT-13B (SNV-2)
Fixed-wing, single engine Individual owner
California
Standard 2003-11-22 ValidFAA registration status code V: Valid registration. All codes
N659U Grumman
G-164
Fixed-wing, single engine Individual owner
Texas
Restricted 2003-11-12 ValidFAA registration status code V: Valid registration. All codes
N2101 Benjamin Delmar R
GEE BEE R-2
Fixed-wing, single engine Individual owner
Florida
Experimental 2003-10-28 ValidFAA registration status code V: Valid registration. All codes
N1252W Waco
SRE
Fixed-wing, single engine Poplar Grove Airmotive INC
Poplar Grove, Illinois
Standard 2003-10-16 ValidFAA registration status code V: Valid registration. All codes
N8351K Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Co-owned owner
Texas
Restricted 2003-10-03 ValidFAA registration status code V: Valid registration. All codes
N524CT Boeing
E75
Fixed-wing, single engine Individual owner
Washington
Experimental 2003-08-21 ValidFAA registration status code V: Valid registration. All codes
N711RS Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Utah
Restricted 2003-08-01 ValidFAA registration status code V: Valid registration. All codes
N7368 Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine 007 Dusting INC
La Junta, Colorado
Restricted 2003-05-16 ValidFAA registration status code V: Valid registration. All codes
N62353 Dehavilland-Shawano
DHC-2 MK.I
Fixed-wing, single engine Red Leasing LLC
Juneau, Alaska
Restricted 2003-05-12 ValidFAA registration status code V: Valid registration. All codes
N2SF Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Airlease INC
Kenmore, Washington
Standard 2003-04-16 ValidFAA registration status code V: Valid registration. All codes
N623YT Sorge Steven D
SPEEDMAIL SPECIAL
Fixed-wing, single engine Individual owner
Wisconsin
Experimental 2003-04-01 ValidFAA registration status code V: Valid registration. All codes
N9109R Beech
C18S
Fixed-wing, multi-engine Bobby Younkin Airshows & Sales INC
Siloam Springs, Arkansas
Experimental 2003-03-05 ValidFAA registration status code V: Valid registration. All codes
N59727 Boeing
D75N1
Fixed-wing, single engine Individual owner
Texas
None on file 2003-02-26 ValidFAA registration status code V: Valid registration. All codes
N8640E Beech
C-45H
Fixed-wing, multi-engine Grimes Flying Lab Foundation
Urbana, Ohio
Experimental 2003-02-24 ValidFAA registration status code V: Valid registration. All codes
N67433 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
California
Standard 2003-01-13 ValidFAA registration status code V: Valid registration. All codes
N63530 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Georgia
Restricted 2002-12-18 ValidFAA registration status code V: Valid registration. All codes
N55520 Boeing
PT-13D
Fixed-wing, single engine Individual owner
North Carolina
Standard 2002-10-30 ValidFAA registration status code V: Valid registration. All codes
N985HB Beech
AT-11
Fixed-wing, multi-engine Berry Machine & Tool CO INC
Camden, Tennessee
Multiple 2002-07-18 ValidFAA registration status code V: Valid registration. All codes
N17664 Spartan
7W
Fixed-wing, single engine Individual owner
Illinois
Standard 2002-07-03 ValidFAA registration status code V: Valid registration. All codes
N67682 Dehavilland
DHC-2-L-20
Fixed-wing, single engine Carpinito & Sons LLC
Kent, Washington
Standard 2002-06-14 ValidFAA registration status code V: Valid registration. All codes
N2035N Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Plus Flying Service INC
Ekalaka, Montana
Restricted 2002-05-02 ValidFAA registration status code V: Valid registration. All codes
N20122 Weatherly Aviation Co Inc
620B
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2002-04-08 ValidFAA registration status code V: Valid registration. All codes
N1774B Boeing
A75
Fixed-wing, single engine Individual owner
Texas
Restricted 2002-03-28 ValidFAA registration status code V: Valid registration. All codes
N52962 Beech
D17S
Fixed-wing, single engine Worlds Greatest Aircraft Collection INC
Polk City, Florida
Standard 2002-03-28 ValidFAA registration status code V: Valid registration. All codes
N1CM Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Flight Management LLC
Kirkland, Washington
Standard 2002-03-21 ValidFAA registration status code V: Valid registration. All codes
N63428 Convair
BT-13A
Fixed-wing, single engine Orvin Sanden INC
Wyndmere, North Dakota
Standard 2002-02-21 ValidFAA registration status code V: Valid registration. All codes
N408TH Beech
E18S
Fixed-wing, multi-engine Kestrel/Hyline
West Des Moines, Iowa
Standard 2002-01-29 ValidFAA registration status code V: Valid registration. All codes
N1619S Snow
S2C
Fixed-wing, single engine Airvantage LLC
New Castle, Delaware
Restricted 2002-01-07 ValidFAA registration status code V: Valid registration. All codes
N5053 Spartan
7W
Fixed-wing, single engine Bleu Cheese Aviation LLC
Dallas, Texas
Standard 2002-01-03 ValidFAA registration status code V: Valid registration. All codes
N21534 Beech
3 TM
Fixed-wing, multi-engine Individual owner
Georgia
Standard 2001-11-19 ValidFAA registration status code V: Valid registration. All codes
N450P Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine N450P LLC
Sumner, Washington
Standard 2001-11-15 ValidFAA registration status code V: Valid registration. All codes
N55101 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
South Carolina
Restricted 2001-10-10 ValidFAA registration status code V: Valid registration. All codes
N60965 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
South Carolina
Restricted 2001-10-10 ValidFAA registration status code V: Valid registration. All codes
N6542 Grumman
G-164A
Fixed-wing, single engine Co-owned owner
South Carolina
Restricted 2001-10-10 ValidFAA registration status code V: Valid registration. All codes
N700MC Grumman
G-164A
Fixed-wing, single engine Co-owned owner
South Carolina
Restricted 2001-10-10 ValidFAA registration status code V: Valid registration. All codes
N5343G Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Coyote Air LLC
Coldfoot, Alaska
Restricted 2001-09-13 ValidFAA registration status code V: Valid registration. All codes
N4734C Boeing
B75N1
Fixed-wing, single engine St Andrews Capital CORP
New York, New York
Standard 2001-09-07 ValidFAA registration status code V: Valid registration. All codes
N19493 Beech
D17S
Fixed-wing, single engine Demark Aviation INC
Wilmington, Delaware
Standard 2001-08-22 ValidFAA registration status code V: Valid registration. All codes
N8720R Beech
C-45H
Fixed-wing, multi-engine Individual owner
Washington
Standard 2001-08-15 ValidFAA registration status code V: Valid registration. All codes
N99799 Beech
H-18
Fixed-wing, multi-engine Individual owner
New Hampshire
Standard 2001-08-14 ValidFAA registration status code V: Valid registration. All codes
N93BT Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Kansas
Standard 2001-07-27 ValidFAA registration status code V: Valid registration. All codes
N325D Beech
C-45H
Fixed-wing, multi-engine Co-owned owner
Nebraska
Standard 2001-06-26 ValidFAA registration status code V: Valid registration. All codes
N1545 Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Andrew Airways INC
Willow, Alaska
Multiple 2001-06-19 ValidFAA registration status code V: Valid registration. All codes
N2297R Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Rapids Camp Lodge INC
King Salmon, Alaska
Multiple 2001-06-18 ValidFAA registration status code V: Valid registration. All codes
N90552 Beech
D18S
Fixed-wing, multi-engine Aeropacific CORP
Idaho Falls, Idaho
Standard 2001-04-11 ValidFAA registration status code V: Valid registration. All codes
N908JM Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine
Standard 2001-04-06 ValidFAA registration status code V: Valid registration. All codes
N417TW Beech
G17S
Fixed-wing, single engine Rbr Aircraft INC
Albuquerque, New Mexico
Standard 2001-03-22 ValidFAA registration status code V: Valid registration. All codes
N44833 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Kansas
Restricted 2001-01-10 ValidFAA registration status code V: Valid registration. All codes
N1544 Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Andrew Airways INC
Willow, Alaska
Multiple 2000-12-15 ValidFAA registration status code V: Valid registration. All codes
N44766 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Kansas
Restricted 2000-12-12 ValidFAA registration status code V: Valid registration. All codes
N44937 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
New York
Restricted 2000-10-24 ValidFAA registration status code V: Valid registration. All codes
N5432N Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Washington
Standard 2000-10-04 ValidFAA registration status code V: Valid registration. All codes
N63529 Boeing
A75N1(PT17)
Fixed-wing, single engine Withheld at owner's request
Standard 2000-09-14 ValidFAA registration status code V: Valid registration. All codes
N2103C Cessna
195
Fixed-wing, single engine Aeromobile INC
Hernando, Mississippi
Standard 2000-08-29 ValidFAA registration status code V: Valid registration. All codes
N33RA Lockheed
12A
Fixed-wing, multi-engine Individual owner
Oregon
Standard 2000-08-25 ValidFAA registration status code V: Valid registration. All codes
N5430V Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Standard 2000-08-22 ValidFAA registration status code V: Valid registration. All codes
N56769 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Washington
Restricted 2000-08-03 ValidFAA registration status code V: Valid registration. All codes
N62700 Convair
BT-13A
Fixed-wing, single engine Individual owner
Nebraska
Standard 2000-07-06 ValidFAA registration status code V: Valid registration. All codes
N18BY Beech
E18S
Fixed-wing, multi-engine 18By LLC
Hood River, Oregon
Standard 2000-06-08 ValidFAA registration status code V: Valid registration. All codes
N6688Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Thompson Aero INC
Amana, Iowa
Restricted 2000-04-10 ValidFAA registration status code V: Valid registration. All codes
N44842 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
New York
Restricted 2000-03-30 ValidFAA registration status code V: Valid registration. All codes
N52968 Boeing
E75N1
Fixed-wing, single engine Co-owned owner
Michigan
Standard 2000-02-28 ValidFAA registration status code V: Valid registration. All codes
N5143N Boeing
B75N1
Fixed-wing, single engine Omega 1 CORP
Middletown, Delaware
Experimental 1999-12-09 ValidFAA registration status code V: Valid registration. All codes
N690 Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine John Deal LLC
Yarrow Point, Washington
Standard 1999-12-02 ValidFAA registration status code V: Valid registration. All codes
N1359N Boeing
A75
Fixed-wing, single engine Individual owner
Minnesota
Standard 1999-11-18 ValidFAA registration status code V: Valid registration. All codes
N6624Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Thompson Aero INC
Amana, Iowa
Restricted 1999-11-18 ValidFAA registration status code V: Valid registration. All codes
N5000V Boeing
E75
Fixed-wing, single engine Miller Randall D
Grand Junction, Colorado
Standard 1999-10-18 ValidFAA registration status code V: Valid registration. All codes
N838 Beech
D17S
Fixed-wing, single engine Individual owner
Florida
Standard 1999-08-06 ValidFAA registration status code V: Valid registration. All codes
Previous Page 13 of 16 Next

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.