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
N56843 Boeing
A75N1(PT17)
Fixed-wing, single engine Co-owned owner
Tennessee
Restricted 2010-01-15 ValidFAA registration status code V: Valid registration. All codes
N74683 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2010-01-12 ValidFAA registration status code V: Valid registration. All codes
N981GB Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
North Dakota
Standard 2010-01-12 ValidFAA registration status code V: Valid registration. All codes
N741 Grumman
G-21A
Fixed-wing, multi-engine Individual owner
New York
Standard 2010-01-07 ValidFAA registration status code V: Valid registration. All codes
N54653 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Michigan
Restricted 2009-12-29 ValidFAA registration status code V: Valid registration. All codes
N18097 Lockheed
12A
Fixed-wing, multi-engine Barnstorm Aviation
Jacksonville, Florida
Standard 2009-12-10 ValidFAA registration status code V: Valid registration. All codes
N48551 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Hershey Flying Service INC
David City, Nebraska
Restricted 2009-12-10 ValidFAA registration status code V: Valid registration. All codes
N56985 Consolidated Vultee
BT-13A
Fixed-wing, single engine Co-owned owner
Missouri
Standard 2009-11-03 ValidFAA registration status code V: Valid registration. All codes
N44922 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Wyoming
Standard 2009-09-23 ValidFAA registration status code V: Valid registration. All codes
N99AN Boeing
E75
Fixed-wing, single engine Yellow Peril Aero LLC
Richmond, Texas
Standard 2009-09-15 ValidFAA registration status code V: Valid registration. All codes
N53132 Boeing
A75N1
Fixed-wing, single engine Individual owner
Montana
Standard 2009-09-04 ValidFAA registration status code V: Valid registration. All codes
N10395 Dehavilland
BEAVER DHC-2
Fixed-wing, single engine Flyways North LLC
Burnsville, Minnesota
Restricted 2009-09-02 ValidFAA registration status code V: Valid registration. All codes
N7337C Beech
AT-11
Fixed-wing, multi-engine Individual owner
Tennessee
Standard 2009-08-27 ValidFAA registration status code V: Valid registration. All codes
N9054W Weatherly
201C
Fixed-wing, single engine Sioux Air INC
South Sioux City, Nebraska
Restricted 2009-08-27 ValidFAA registration status code V: Valid registration. All codes
N5221G Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Individual owner
California
Restricted 2009-08-12 ValidFAA registration status code V: Valid registration. All codes
N8589A Beech
G17S
Fixed-wing, single engine Bravo Tango LLC
Indianapolis, Indiana
Standard 2009-07-23 ValidFAA registration status code V: Valid registration. All codes
N49265 Beech
UC-45J
Fixed-wing, multi-engine American Airpower Heritage Flying Museum
Dallas, Texas
Standard 2009-06-15 ValidFAA registration status code V: Valid registration. All codes
N9169H Beech
D17S
Fixed-wing, single engine Individual owner
Texas
Standard 2009-04-30 ValidFAA registration status code V: Valid registration. All codes
N45184 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Iowa Military Aviation Heritage Museum
Ankeny, Iowa
Experimental 2009-04-24 ValidFAA registration status code V: Valid registration. All codes
N239E Beech
D17S
Fixed-wing, single engine Sundale Aviation INC
Erwinna, Pennsylvania
Standard 2009-04-22 ValidFAA registration status code V: Valid registration. All codes
N69044 Beech
C18S
Fixed-wing, multi-engine Co-owned owner
California
Standard 2009-04-22 ValidFAA registration status code V: Valid registration. All codes
N251M Bellanca
CH300 PACEMAKER
Fixed-wing, single engine Hawaiian Airlines INC
Honolulu, Hawaii
Standard 2009-04-14 ValidFAA registration status code V: Valid registration. All codes
N966CD Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Minnesota
Experimental 2009-04-08 ValidFAA registration status code V: Valid registration. All codes
N66923 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
California
Restricted 2009-03-02 ValidFAA registration status code V: Valid registration. All codes
N63838 Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
New Jersey
Standard 2009-02-25 ValidFAA registration status code V: Valid registration. All codes
N723DR Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine Copper Valley Air Service LLC
Glennallen, Alaska
Standard 2009-02-02 ValidFAA registration status code V: Valid registration. All codes
N450TA Beech
G18S
Fixed-wing, multi-engine Kestrel INC
West Des Moines, Iowa
Standard 2009-01-30 ValidFAA registration status code V: Valid registration. All codes
N9966 Travel Air
SA-6000-A
Fixed-wing, single engine Individual owner
Alaska
Standard 2008-12-10 ValidFAA registration status code V: Valid registration. All codes
N726LP Consolidated Vultee
BT-13A
Fixed-wing, single engine Individual owner
Idaho
Standard 2008-11-05 ValidFAA registration status code V: Valid registration. All codes
N1434M Boeing
A75N1(PT17)
Fixed-wing, single engine Eastern Stearman INC Trustee
Leesburg, Virginia
Restricted 2008-10-21 ValidFAA registration status code V: Valid registration. All codes
N48455 Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Crawford Aviation Services LLC
Flagstaff, Arizona
Restricted 2008-10-14 ValidFAA registration status code V: Valid registration. All codes
N5143G Dehavilland
DHC-2 MK 1
Fixed-wing, single engine US Department of the Interior
Boise, Idaho
Standard 2008-10-01 ValidFAA registration status code V: Valid registration. All codes
N156TB Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Dalks Leasing INC
Wilmington, Delaware
Standard 2008-09-23 ValidFAA registration status code V: Valid registration. All codes
N67676 Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Blue Aircraft LLC
Ketchikan, Alaska
Standard 2008-09-22 ValidFAA registration status code V: Valid registration. All codes
N9115H Beech
D17S
Fixed-wing, single engine Co-owned owner
California
Standard 2008-09-12 ValidFAA registration status code V: Valid registration. All codes
N58712 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2008-08-18 ValidFAA registration status code V: Valid registration. All codes
N6553 Grumman
G-164A
Fixed-wing, single engine Tall Towers Aviation INC
Page, North Dakota
Restricted 2008-08-07 ValidFAA registration status code V: Valid registration. All codes
N17634 Spartan
7W
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2008-07-17 ValidFAA registration status code V: Valid registration. All codes
N67590 Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Blue Aircraft LLC
Ketchikan, Alaska
Standard 2008-07-17 ValidFAA registration status code V: Valid registration. All codes
N1383V Boeing
E75
Fixed-wing, single engine Individual owner
Texas
Restricted 2008-06-11 ValidFAA registration status code V: Valid registration. All codes
N907BR Dehavilland
DHC-2 MK 1
Fixed-wing, single engine Individual owner
Alaska
Standard 2008-05-15 ValidFAA registration status code V: Valid registration. All codes
N1801D Beech
D18S
Fixed-wing, multi-engine Individual owner
Minnesota
Standard 2008-02-13 ValidFAA registration status code V: Valid registration. All codes
N9744H Boeing
B75N1
Fixed-wing, single engine Mbsp Enterprises INC
Wilmington, Delaware
Restricted 2008-01-17 ValidFAA registration status code V: Valid registration. All codes
N450MF Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Standard 2008-01-16 ValidFAA registration status code V: Valid registration. All codes
N75324 Boeing
E75
Fixed-wing, single engine Individual owner
Texas
Restricted 2008-01-10 ValidFAA registration status code V: Valid registration. All codes
N80323 Beech
C-45G
Fixed-wing, multi-engine Bachus & Son INC
Wichita, Kansas
Standard 2008-01-10 ValidFAA registration status code V: Valid registration. All codes
N4009A Naval Aircraft Factory
N3N-3
Fixed-wing, single engine American Airpower Heritage Flying Museum
Dallas, Texas
Standard 2007-12-28 ValidFAA registration status code V: Valid registration. All codes
N45296 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Standard 2007-12-04 ValidFAA registration status code V: Valid registration. All codes
N14887 Howard Aircraft
DGA-11
Fixed-wing, single engine Co-owned owner
Montana
Standard 2007-11-14 ValidFAA registration status code V: Valid registration. All codes
N75272 Boeing
A75N1(PT17)
Fixed-wing, single engine Lone Star Flight Museum
Houston, Texas
Restricted 2007-11-02 ValidFAA registration status code V: Valid registration. All codes
N2K Fairchild
71
Fixed-wing, single engine Co-owned owner
California
Experimental 2007-10-26 ValidFAA registration status code V: Valid registration. All codes
N567JC Grumman Acft Eng Cor-Schweizer
G-164A
Fixed-wing, single engine Chorman Spraying LLC
Milton, Delaware
Restricted 2007-09-26 ValidFAA registration status code V: Valid registration. All codes
N9375Y Beech
G18S
Fixed-wing, multi-engine Nord Aviation INC
Santa Teresa, New Mexico
Standard 2007-09-18 ValidFAA registration status code V: Valid registration. All codes
N743PM Stinson
VULTEE V-77
Fixed-wing, single engine Gullwing Research LLC
Boise, Idaho
Standard 2007-08-31 ValidFAA registration status code V: Valid registration. All codes
N44GM Beech
D17S
Fixed-wing, single engine Eastern Stearman INC Trustee
Leesburg, Virginia
Standard 2007-08-29 ValidFAA registration status code V: Valid registration. All codes
N251K Beech
E18S
Fixed-wing, multi-engine Neenah Classic Aircraft LLC
Neenah, Wisconsin
Standard 2007-08-21 ValidFAA registration status code V: Valid registration. All codes
N6775Q Grumman Acft Eng Cor-Schweizer
G-164B
Fixed-wing, single engine Individual owner
Kentucky
Restricted 2007-07-27 ValidFAA registration status code V: Valid registration. All codes
N5366N Boeing
E75
Fixed-wing, single engine Individual owner
Texas
Standard 2007-07-26 ValidFAA registration status code V: Valid registration. All codes
N2292K Beech
3N
Fixed-wing, multi-engine B & K Leasing INC
Nantucket, Massachusetts
Standard 2007-06-27 ValidFAA registration status code V: Valid registration. All codes
N63697 Consolidated Vultee
BT-13B (SNV-2)
Fixed-wing, single engine War Eagles Air Museum
Santa Teresa, New Mexico
Standard 2007-06-11 ValidFAA registration status code V: Valid registration. All codes
N5022V Boeing
E75
Fixed-wing, single engine Individual owner
Montana
Restricted 2007-05-31 ValidFAA registration status code V: Valid registration. All codes
N1222N Boeing
B75N1
Fixed-wing, single engine Motor Connection INC
Inglewood, California
Standard 2007-04-25 ValidFAA registration status code V: Valid registration. All codes
N52986 Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Tennessee
Standard 2007-04-11 ValidFAA registration status code V: Valid registration. All codes
N67419 Boeing
B75
Fixed-wing, single engine Individual owner
Arizona
Restricted 2007-03-28 ValidFAA registration status code V: Valid registration. All codes
N61JP Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Indiana
Multiple 2007-02-05 ValidFAA registration status code V: Valid registration. All codes
N1227 Howard Aircraft
DGA-15P
Fixed-wing, single engine Howard Aviation LLC
Marblehead, Ohio
Standard 2007-01-31 ValidFAA registration status code V: Valid registration. All codes
N1281W Weatherly
201B
Fixed-wing, single engine Jersey Devil Dusters LLC
Southampton, New Jersey
Restricted 2007-01-31 ValidFAA registration status code V: Valid registration. All codes
N92KC Beech
AT-11
Fixed-wing, multi-engine Individual owner
Florida
Standard 2006-12-08 ValidFAA registration status code V: Valid registration. All codes
N1292W Weatherly
201B
Fixed-wing, single engine Jersey Devil Dusters LLC
Southampton, New Jersey
Restricted 2006-11-20 ValidFAA registration status code V: Valid registration. All codes
N45GC Beech
C-45H
Fixed-wing, multi-engine Ashworth CORP INC
Geneseo, New York
Restricted 2006-11-14 ValidFAA registration status code V: Valid registration. All codes
N779W Bellanca
CH400 SKYROCKET
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2006-10-19 ValidFAA registration status code V: Valid registration. All codes
N5SS Boeing
A75N1(PT17)
Fixed-wing, single engine Internutrition.Com INC
Wilmington, Delaware
Standard 2006-09-11 ValidFAA registration status code V: Valid registration. All codes
N80309 Beech
G17S
Fixed-wing, single engine Zachry Industrial INC
San Antonio, Texas
Standard 2006-08-29 ValidFAA registration status code V: Valid registration. All codes
N19E Stinson
SR-10F
Fixed-wing, single engine Individual owner
Virginia
Standard 2006-08-17 ValidFAA registration status code V: Valid registration. All codes
N621SR Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Texas
Standard 2006-08-07 ValidFAA registration status code V: Valid registration. All codes
N2106Q Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Individual owner
Minnesota
Standard 2006-06-28 ValidFAA registration status code V: Valid registration. All codes
N450RA Dehavilland
DHC-2
Fixed-wing, single engine Ryan Aviation Management LLC
Palm Coast, Florida
Standard 2006-06-07 ValidFAA registration status code V: Valid registration. All codes
N12048 Moss Jim
MOSS-LAIRD SUPER SOL
Fixed-wing, single engine Individual owner
Florida
Experimental 2006-06-06 ValidFAA registration status code V: Valid registration. All codes
N58410 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Michigan
Restricted 2006-06-06 ValidFAA registration status code V: Valid registration. All codes
N52510 Boeing
A75N1(PT17)
Fixed-wing, single engine Bay Shipyard INC
Panama City, Florida
Standard 2006-04-18 ValidFAA registration status code V: Valid registration. All codes
N106GG Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2006-03-21 ValidFAA registration status code V: Valid registration. All codes
N1785H Howard Aircraft
DGA-15P
Fixed-wing, single engine Individual owner
Ohio
Standard 2006-02-27 ValidFAA registration status code V: Valid registration. All codes
N127ML Beech
D18S
Fixed-wing, multi-engine Individual owner
Wisconsin
Standard 2006-02-09 ValidFAA registration status code V: Valid registration. All codes
N747RB Boeing
B75N1
Fixed-wing, single engine Individual owner
Delaware
Standard 2006-02-09 ValidFAA registration status code V: Valid registration. All codes
N1722B Boeing
A75
Fixed-wing, single engine Individual owner
Texas
Restricted 2006-01-05 ValidFAA registration status code V: Valid registration. All codes
N9690R Beech
G18S
Fixed-wing, multi-engine Dove Enterprises LLC
Wilmington, Delaware
Standard 2005-12-27 ValidFAA registration status code V: Valid registration. All codes
N68405 Boeing
B75N1
Fixed-wing, single engine Individual owner
Washington
Restricted 2005-11-04 ValidFAA registration status code V: Valid registration. All codes
N45106 Naval Aircraft Factory
N3N-3
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2005-10-24 ValidFAA registration status code V: Valid registration. All codes
N5506A Boeing
75
Fixed-wing, single engine Individual owner
Texas
Experimental 2005-09-19 ValidFAA registration status code V: Valid registration. All codes
N62420 Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2005-08-19 ValidFAA registration status code V: Valid registration. All codes
N5867 Beech
E18S
Fixed-wing, multi-engine Individual owner
California
Standard 2005-08-17 ValidFAA registration status code V: Valid registration. All codes
N728CW Dehavilland
BEAVER DHC-2 MK.1
Fixed-wing, single engine Group III Beaver Aircraft LLC
Bellevue, Washington
Standard 2005-07-28 ValidFAA registration status code V: Valid registration. All codes
N1254W Weatherly
201B
Fixed-wing, single engine Shar Tam CORP
Faulkton, South Dakota
Restricted 2005-07-27 ValidFAA registration status code V: Valid registration. All codes
N3947Q Dehavilland
BEAVER U-6A
Fixed-wing, single engine Coyote Air LLC
Coldfoot, Alaska
Multiple 2005-07-22 ValidFAA registration status code V: Valid registration. All codes
N5363N Boeing
E75
Fixed-wing, single engine Co-owned owner
New Hampshire
Restricted 2005-07-19 ValidFAA registration status code V: Valid registration. All codes
N664U Grumman
G-164
Fixed-wing, single engine Murphy Airport INC
Amsterdam, New York
Experimental 2005-07-12 ValidFAA registration status code V: Valid registration. All codes
N814DW Dehavilland
DHC-2
Fixed-wing, single engine Wrangell Mountain Air INC
Palmer, Alaska
Standard 2005-07-06 ValidFAA registration status code V: Valid registration. All codes
N67684 Dehavilland
DHC-2 MK. I(L20A)
Fixed-wing, single engine C & P Aircraft Leasing LLC
Renton, Washington
Standard 2005-06-08 ValidFAA registration status code V: Valid registration. All codes
N64470 Consolidated Vultee
BT-13
Fixed-wing, single engine Individual owner
Kansas
Standard 2005-05-25 ValidFAA registration status code V: Valid registration. All codes
N1361N Boeing
A75N1(PT17)
Fixed-wing, single engine Individual owner
Ohio
Restricted 2005-05-19 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 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.