Type Record · As of May 3, 2026

PIPER PA-25

Fixed Wing Single Engine · LYCOMING 0-320 SERIES

Registered

Year Range

1959–1963

NTSB Events

Airworthiness Directives

Aircraft Resources

Manufacturer · Piper Aircraft → Service Bulletins → Engine · Lycoming Engines → Search FAA TCDS → Type Club · The Piper Owner Society → Owner Forum · Piper Forum →

01 / Distribution

Where the fleet lives and was built

Counts of currently-registered PIPER PA-25 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

SD 10.0% 6
FL 10.0% 6
CT 10.0% 6
ND 8.3% 5
TX 8.3% 5
MN 6.7% 4
AZ 3.3% 2
KS 3.3% 2
PA 3.3% 2
CO 3.3% 2

+20 more states

By Decade of Manufacture

1950s 10.0% 6
1960s 73.3% 44
Unknown 16.7% 10

02 / NTSB Records

Events involving PIPER PA-25 aircraft

26 event(s) on file. Showing the most recent 25 · 1 more available on NTSB CAROL.

Jul 12, 2025
N8186K
Hot Springs, South Dakota Fatal
NTSB Docket →
Sep 17, 2006
N6319Z
Mount Holly, New Jersey
NTSB Docket →
Apr 10, 1987
N6384Z
HENNING, Minnesota Minor
NTSB Docket →
Jun 16, 1986
N6120Z
BADGER, South Dakota Fatal
NTSB Docket →
Sep 30, 1982
N6140Z
BALDWIN, Wisconsin
NTSB Docket →
May 31, 1981
N6140Z
LAKE ELMO, Minnesota Serious
NTSB Docket →
Sep 7, 1978
N6447Z
MILFORD, Iowa
NTSB Docket →
May 10, 1978
N6141Z
COMANCHE, Oklahoma Serious
NTSB Docket →
Aug 3, 1975
N6454Z
BENEDICT, Nebraska
NTSB Docket →
Jul 31, 1973
N6189Z
BLANCHARD, Oklahoma
NTSB Docket →
Jul 10, 1973
N6520Z
LYNCH, Nebraska
NTSB Docket →
Jun 20, 1970
N6265Z
CASSELTON, North Dakota
NTSB Docket →
Aug 1, 1968
N6126Z
COTTON CENTER, Texas
NTSB Docket →
Mar 19, 1968
N6079Z
NEVADA, Missouri
NTSB Docket →
Jul 7, 1967
N6035Z
REGENT, North Dakota
NTSB Docket →
Oct 22, 1966
N6049Z
PASCO, Washington
NTSB Docket →
Jul 9, 1966
N6516Z
MULESHOE, Texas
NTSB Docket →
Jun 18, 1966
N6189Z
WESTHOPE, North Dakota
NTSB Docket →
Jun 18, 1966
N6203Z
RHAME, North Dakota
NTSB Docket →
Sep 6, 1965
N6474Z
HOLLIS, Oklahoma
NTSB Docket →
Jun 18, 1965
N6470Z
SCOTTSBLUFF, Nebraska
NTSB Docket →
Apr 22, 1965
N6208Z
TRENTON, Tennessee
NTSB Docket →
Jul 18, 1964
N6151Z
RESERVE, Louisiana
NTSB Docket →
Jun 15, 1964
N6520Z
SPEARMAN, Texas
NTSB Docket →
May 31, 1964
N6035Z
BASS LAKE, Indiana
NTSB Docket →

03 / Airworthiness Directives

FAA directives applicable to PIPER PA-25

49 directive(s) on file. Showing the most recent 25 · 24 more in the Federal Register.

Feb 13, 2025

Airworthiness Directives; FS 2001 Corp, FS 2002 Corporation, FS 2003 Corporation, Piper, and Piper Aircraft, Inc. Airplanes

The FAA is adopting a new airworthiness directive (AD) for certain FS 2001 Corp, FS 2002 Corporation, FS 2003 Corporation, Piper, and Piper Aircraft, Inc. (Piper) airplanes. This AD was prompted by reports of broken rudders. This AD requires replacing any rudder equipped with a rudder post made from a certain carbon s…

Atlas AD → Federal Register ↗
Apr 29, 2015

Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

We are superseding Airworthiness Directive (AD) 99-01-05 R1, which applied to certain aircraft equipped with wing lift struts. AD 99-01-05 R1 required repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lift strut; replac…

Atlas AD → Federal Register ↗
Dec 31, 2014

Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

We propose to supersede Airworthiness Directive (AD) 99-01-05 R1, which applies to certain aircraft equipped with wing lift struts. AD 99-01-05 R1 currently requires repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lif…

Atlas AD → Federal Register ↗
Dec 31, 2013

Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to certain aircraft equipped with wing lift struts. The list of affected airplanes in the Applicability section is incorrect. Several Piper Aircraft, Inc. Model PA-18 airplanes were inadvertently omitted from…

Atlas AD → Federal Register ↗
Dec 10, 2013

Airworthiness Directives; Various Aircraft Equipped with Wing Lift Struts

We are revising Airworthiness Directive (AD) 99-01-05 for certain aircraft equipped with wing lift struts. AD 99-01-05 required repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lift strut; replacing any cracked wing li…

Atlas AD → Federal Register ↗
Jan 16, 2013

Airworthiness Directives; Various Aircraft Equipped With Wing Lift Struts

We propose to revise an existing airworthiness directive (AD) that applies to certain aircraft equipped with wing lift struts. The existing AD currently requires repetitively inspecting the wing lift struts for corrosion; repetitively inspecting the wing lift strut forks for cracks; replacing any corroded wing lift st…

Atlas AD → Federal Register ↗
Aug 12, 2011

Airworthiness Directives; Lycoming Engines (L)O-360, (L)IO-360, AEIO-360, O-540, IO-540, AEIO-540, (L)TIO-540, IO-580, and IO-720 Series Reciprocating Engines

We propose to supersede an existing airworthiness directive (AD) that applies to the products listed above. The existing AD currently requires replacing certain crankshafts. Since we issued that AD, Lycoming Engines discovered that the start date of affected engine models in Mandatory Service Bulletin (MSB) No. 569A,…

Atlas AD → Federal Register ↗
Dec 31, 2009

Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies

The FAA is superseding an existing airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components, Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Titan," installed. That AD current…

Atlas AD → Federal Register ↗
Oct 27, 2009

Airworthiness Directives; Hartzell Propeller Inc. ()HC-()2Y(K,R)-() Series Propellers

The FAA is superseding an existing airworthiness directive (AD) for Hartzell Propeller Inc. ()HC-()2Y()-() series propellers with non-suffix serial number (SN) propeller hubs installed on Lycoming O-, IO-, LO-, and AEIO-360 series reciprocating engines. That AD currently requires initial and repetitive eddy current in…

Atlas AD → Federal Register ↗
Jul 30, 2009

Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies

The FAA proposes to supersede an existing airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components, Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Titan," installed. That AD…

Atlas AD → Federal Register ↗
Sep 15, 2008

Airworthiness Directives; Engine Components, Inc. (ECi) Reciprocating Engine Cylinder Assemblies

The FAA is adopting a new airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components, Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Titan", installed. This AD requires initial…

Atlas AD → Federal Register ↗
May 19, 2008

Airworthiness Directives; Engine Components Inc. (ECi) Reciprocating Engine Cylinder Assemblies

The FAA proposes to adopt a new airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Titan", installed. This proposed AD wo…

Atlas AD → Federal Register ↗
Apr 13, 2007

Airworthiness Directives; LATINOAMERICANA DE AVIACIÓN (LAVIA) S.A. (Type Certificate Data Sheets No. 2A8 and No. 2A10 Previously Held by The New Piper Aircraft, Inc.) Models PA-25, PA-25-235, and PA-25-260 Airplanes

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI references Latinoamericana de Avia…

Atlas AD → Federal Register ↗
Apr 2, 2007

Airworthiness Directives; Superior Air Parts, Inc. (SAP), Cylinder Assemblies Part Numbers Series: SA47000L, SA47000S, SA52000, SA55000, SL32000W, SL32000WH, SL32006W, SL36000TW, SL36000W, and SL36006W

The FAA is revising an existing airworthiness directive (AD) for certain SAP cylinder assemblies installed in Teledyne Continental Motors (TCM) 470, 520, and 550 series reciprocating engines, Lycoming Engines (LE) 320, 360, and 540 series reciprocating engines, Avco Lycoming (AL) 540 series reciprocating engines, and…

Atlas AD → Federal Register ↗
Feb 23, 2007

Airworthiness Directives; Superior Air Parts, Inc. (SAP), Cast Cylinder Assemblies Part Numbers Series: SA47000L, SA47000S, SA52000, SA55000, SL32000W, SL32000WH, SL32006W, SL36000TW, SL36000W, and SL36006W

The FAA is adopting a new airworthiness directive (AD) for certain SAP cast cylinder assemblies installed in Teledyne Continental Motors (TCM) 470, 520, and 550 series reciprocating engines, Lycoming Engines (LE) 320, 360, and 540 series reciprocating engines, Avco Lycoming (AL) 540 series reciprocating engines, and S…

Atlas AD → Federal Register ↗
Feb 14, 2007

Airworthiness Directives; LATINOAMERICANA DE AVIACIÓN (LAVIA) S.A. (Type Certificate Data Sheets No. 2A8 and No. 2A10 Previously Held by The New Piper Aircraft, Inc.) Models PA-25, PA-25-235, and PA-25-260 Airplanes

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI references Latino…

Atlas AD → Federal Register ↗
Sep 29, 2006

Airworthiness Directives; Lycoming Engines (L)O-360, (L)IO-360, AEIO-360, O-540, IO-540, AEIO-540, (L)TIO-540, IO-580, and IO-720 Series Reciprocating Engines.

The FAA is adopting a new airworthiness directive (AD) for certain Lycoming Engines (L)O-360, (L)IO-360, AEIO-360, O-540, IO-540, AEIO-540, (L)TIO-540, IO-580, and IO-720 series reciprocating engines. This AD requires replacing certain crankshafts. This AD results from reports of 23 confirmed failures of similar crank…

Atlas AD → Federal Register ↗
Sep 8, 2006

Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) Series Propellers

The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) series propellers with non- suffix serial number (SN) propeller hubs installed on Lycoming O-, IO-, LO-, and AEIO-360 series reciprocating engines. This AD requires initial and repetitive eddy current inspections (ECI…

Atlas AD → Federal Register ↗
Jun 6, 2006

Airworthiness Directives; Engine Components Inc. (ECi) Reciprocating Engine Cylinder Assemblies

The FAA is superseding an existing airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Classic Cast", installed. That AD c…

Atlas AD → Federal Register ↗
May 18, 2006

Airworthiness Directives; Engine Components Incorporated (ECi) Reciprocating Engine Connecting Rods

The FAA is adopting a new airworthiness directive (AD) for certain Lycoming Engines (formerly Textron Lycoming) 360 and 540 series reciprocating engines with ECi connecting rods, part number (P/N) AEL11750, installed. The Airmotive Engineering Corp, Division of Engine Components Incorporated (ECi), holds the Parts Man…

Atlas AD → Federal Register ↗
Feb 24, 2006

Airworthiness Directives; Engine Components Inc. (ECi) Reciprocating Engine Cylinder Assemblies

The FAA proposes to supersede an existing airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Classic Cast", installed. Th…

Atlas AD → Federal Register ↗
Feb 7, 2006

Airworthiness Directives; Aero Advantage ADV200 Series (Part Numbers ADV211CC and ADV212CW) Vacuum Pumps

The FAA adopts a new airworthiness directive (AD) for all airplanes equipped with Aero Advantage ADV200 series (part numbers ADV211CC and ADV212CW) vacuum pumps installed under supplemental type certificate number SA10126SC, through field approval, or other methods. This AD requires you to remove from service any affe…

Atlas AD → Federal Register ↗
Dec 27, 2005

Airworthiness Directives; Engine Components Inc. (ECi) Reciprocating Engine Cylinder Assemblies

The FAA is adopting a new airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, "Parallel Valve" reciprocating engines, with certain Engine Components Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series "Classic Cast", installed. This AD requires r…

Atlas AD → Federal Register ↗
Oct 5, 2005

Airworthiness Directives; Engine Components Incorporated (ECi) Reciprocating Engine Connecting Rods

The FAA proposes to adopt a new airworthiness directive (AD) for certain Lycoming Engines (formerly Textron Lycoming) 360 and 540 series reciprocating engines with ECi connecting rods, part number (P/ N) AEL 11750, installed. This proposed AD would require replacing certain serial-numbered connecting rods, P/N AEL 117…

Atlas AD → Federal Register ↗
Sep 16, 2005

Airworthiness Directives; Lycoming Engines (Formerly Textron Lycoming) AEIO-360, IO-360, O-360, LIO-360, LO-360, AEIO-540, IO-540, O-540, and TIO-540 Series Reciprocating Engines

The FAA is adopting a new airworthiness directive (AD) for certain Lycoming Engines (formerly Textron Lycoming) AEIO-360, IO-360, O-360, LIO-360, LO-360, AEIO-540, IO-540, O-540, and TIO-540 series reciprocating engines rated at 300 horsepower (HP) or lower. This AD requires replacing certain crankshafts. This AD resu…

Atlas AD → Federal Register ↗

04 / Type Certificate Data Sheets

FAA TCDS for PIPER PA-25

The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.

2A8 Historical Rev 20 · 11/30/2000

Latino American De Aviacion (Lavia) S.A.

Models: PA-25-260, PA-25-235, PA-25

Atlas TCDS → DRS ↗

05 / Special Airworthiness Information Bulletins

Advisories applicable to PIPER PA-25

1 SAIB on file. SAIBs are FAA advisory notices — not mandatory like ADs, but worth reviewing for service bulletins and emerging issues.

03/27/2013

SAIB CE-13-26

Engine Air Intake System; Air Box Vanes

Read → DRS ↗

06 / Supplemental Type Certificates

Modifications approved for PIPER PA-25

200 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.

03/03/2026

STC SA02511SE

Installation of replacement fuel quantity indicator sending unit(s)

CiES Inc.

Atlas STC → DRS ↗
07/24/2025

STC SA02511SE

Installation of replacement fuel quantity indicator sending unit(s)

CiES Inc.

Atlas STC → DRS ↗
07/21/2025

STC SA02511SE

Installation of replacement fuel quantity indicator sending unit(s)

CiES Inc.

Atlas STC → DRS ↗
03/01/2025

STC SA7965SW

Application of fabric and polyurethane finishing system.

Shady Aviation LLC

Atlas STC → DRS ↗
11/22/2024

STC SA04378CH

Installation of an engine modified per STC SE04349CH

SureFly Partners Ltd.

Atlas STC → DRS ↗
08/27/2024

STC SA04837NY

Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights

AeroLED's Holdings, LLC

Atlas STC → DRS ↗
08/27/2024

STC SA02386AK

Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems

AeroLED's Holding LLC

Atlas STC → DRS ↗
08/21/2024

STC SA01757WI

To allow the use of UL91 or UL94 (minimum) grade aviation fuel

Swift Fuels LLC

Atlas STC → DRS ↗
06/13/2024

STC SA02511SE

Installation of replacement fuel quantity indicator sending unit(s)

CiES Inc.

Atlas STC → DRS ↗
06/13/2024

STC SA02511SE (1 OF 3)

Installation of replacement fuel quantity indicator sending unit(s)

CiES Inc.

Atlas STC → DRS ↗
06/13/2024

STC SA02511SE (1 OF 2)

Installation of replacement fuel quantity indicator sending unit(s)

CiES Inc.

Atlas STC → DRS ↗
05/17/2024

STC SA4503NM (PAGE 1)

Remove original cloth covering and install Ceconite covering

Ceconite Division of Poly-Fiber Inc.

Atlas STC → DRS ↗
11/16/2023

STC SA02532AT

Installation of subject Michelin tires on appropriate aircraft. For Michelin 5, 6, 8, and 10-inch rim diameter tires on General Aviation Aircraft.

Michelin North America Inc.

Atlas STC → DRS ↗
07/19/2023

STC SA04378CH

Installation of an engine modified per STC SE04349CH on an aircraft listed on FAA approved model list #SA04378CH dated 1/13/19 or later FAA approved revision, IAW SureFly installat…

SureFly Partners Ltd.

Atlas STC → DRS ↗
05/22/2023

STC SA01435LA

Installation of engines modified with Firewall Forward Technologies LLC modified camshaft

Centri-Lube Technologies LLC

Atlas STC → DRS ↗
04/04/2023

STC SA11137SC

Installation of Plane-Power ALT-FLX alternator

Hartzell Engine Technologies, LLC

Atlas STC → DRS ↗
01/10/2023

STC SA04378CH

Installation of an engine modified per STC SE04349CH on an aircraft listed on FAA approved model list #SA04378CH dated 1/13/19 or later FAA approved revision, IAW SureFly installat…

SureFly Partners Ltd

Atlas STC → DRS ↗
09/09/2022

STC SA1008WE

Installation of Poly-Fiber covering material.

Poly-Fiber Inc

Atlas STC → DRS ↗
09/09/2022

STC SA4503NM (PAGE 1)

Install Ceconite covering material.

Ceconite Division of Poly-Fiber Inc

Atlas STC → DRS ↗
09/01/2022

STC SA01967WI (2 OF3)

Use of GAMI G100UL High Octane Unleaded Avgas

General Aviation Modifications Inc.

Atlas STC → DRS ↗
07/27/2022

STC SA01757WI

To allow the use of UL91 or UL94 (minimum) grade aviation fuel

Swift Fuels LLC

Atlas STC → DRS ↗
05/19/2022

STC SA04776NY (1 OF 2)

The HIPEC Covering and Finishing System must be performed and maintained

HIPEC Aircraft Coatings Inc.

Atlas STC → DRS ↗
07/30/2021

STC SA1151NW

Installation of the Flight Grip Model 135 Control Stick Grip

Air Products & Parts LLC

Atlas STC → DRS ↗
03/30/2021

STC SA02386AK

Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems

Aero LEDs LLC

Atlas STC → DRS ↗
10/07/2020

STC SA04378CH

Installation of an engine modified per STC SE04349CH on an aircraft listed on FAA approved model list #SA04378CH dated 1/13/19 or later FAA approved revision, IAW SureFly installat…

SureFly Partners Ltd

Atlas STC → DRS ↗
07/27/2020

STC SA01831WI

To allow the use of UL91 (minimum) grade aviation fuel

Petersen Aviation Inc

Atlas STC → DRS ↗
06/04/2020

STC SA02268CH (PAGE 5)

Installation of Airwolf Filter Corp. Air Oil Separator

Airwolf Filter Corporation

Atlas STC → DRS ↗
12/05/2019

STC SA04378CH

Installation of an engine modified per STC SE04349CH on an aircraft listed on FAA approved model list #SA04378CH dated 1/13/19 or later FAA approved revision, IAW SureFly installat…

SureFly Partners Ltd

Atlas STC → DRS ↗
07/11/2019

STC SA03286CH

Install an electronic engine ignition system

Electroair Acquisition Corporation

Atlas STC → DRS ↗
07/11/2019

STC SA04032CH

Install rocker switch assemblies

Electroair Acquisition Corporation

Atlas STC → DRS ↗

+ 170 more STCs on file

07 / PMA replacement parts

FAA-approved replacement parts for PIPER PA-25

14 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.

20104A#https://drs.faa.gov/browse/excelExternalWindow/BAF38CA0B4F3C870862581B5006B6016.0001##

Air-Oil Cooler

Aavid Niagara LLC replaces 8530016
PMA holder →
U19513-024#https://drs.faa.gov/browse/excelExternalWindow/BE3AFB47C5814B6586257ED900663383.0001##

Washer

Univair Aircraft Corp replaces Piper 19513-024
PMA holder →
486#https://drs.faa.gov/browse/excelExternalWindow/1169D8821C10254A862573E00055626B.0001##

Windshield

LP Aero Plastics Inc replaces Piper P/N 61802-03
PMA holder →
U64274-000#https://drs.faa.gov/browse/excelExternalWindow/3B2DED5A12C7A7BF86257689006C1F97.0001##

Stabilizer Assembly

Univair Aircraft Corp replaces Piper p/n 64274-00
PMA holder →
U64788-000#https://drs.faa.gov/browse/excelExternalWindow/6727A64640A839D186257ED90066336C.0001##

Panel

Univair Aircraft Corp replaces Piper 64788-000, 64788-001
PMA holder →
U19513-085#https://drs.faa.gov/browse/excelExternalWindow/FA149C55BD23D90F86257ED90066338E.0001##

Washer

Univair Aircraft Corp replaces Piper 19513-085
PMA holder →
045#https://drs.faa.gov/browse/excelExternalWindow/B3DF0817DCD944B5862573A600605C6D.0001##

Left or Right Canopy Window

LP Aero Plastics Inc replaces PiperP/N 60219-00
PMA holder →
U64275-000#https://drs.faa.gov/browse/excelExternalWindow/266851298C603F9186257689006C1F6A.0001##

Elevator Assembly

Univair Aircraft Corp replaces Piper p/n 64275-00
PMA holder →
20104A#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104195389920250303152540.0001##

Air-Oil Cooler

Aavid Niagara, LLC Technologies replaces 8530016
PMA holder →
8000215#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157151941320221130202550.0001##

Engine Oil Cooler

Aero-Classics Heat Transfer Products Inc replaces Harrison P/N: 8534108
PMA holder →
RA164-03300#https://drs.faa.gov/browse/excelExternalWindow/8FA1BBCB8E46D0178625738A0062952A.0001##

Brake Disc

Rapco Inc replaces Cleveland Wheels & Brakes P/N 164-03300
PMA holder →
AFC-K007 dated 6/8/93 or later FAA-Approved Revision#https://drs.faa.gov/browse/excelExternalWindow/ABDC49B6DE32F2C8862573E0005E98A1.0001##

Remote Mount Oil Filter Kit

Airwolf Filter Corp replaces Modification Part
PMA holder →
W-2280#https://drs.faa.gov/browse/excelExternalWindow/2406D97F65DD48778625715500471EA6.0001##

PIPER PA-25 LANDING LIGHT LENS

Great Lakes Aero Products replaces 14785-03
PMA holder →
K753-753#https://drs.faa.gov/browse/excelExternalWindow/DDDD7074525361878625717F007237A4.0001##

Muffler

Knisley Welding Inc replaces 753-753
PMA holder →

04 / Regulations watching this type

Advisory Circulars and Federal Register activity for PIPER PA-25

Advisory Circulars

No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.

Recent Federal Register activity

Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).

05 / Aircraft of this type

All 60 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.

60 of 60

N-number	St	Year	Status	NTSB	FAA
N150PP	SD	—	Active	·	Look up ↗
N337AB	MN	1960	Active	·	Look up ↗
N37AB	MN	1960	Active	·	Look up ↗
N4477P	DE	1960	Active	·	Look up ↗
N6016Z	LA	—	Active	·	Look up ↗
N6021Z	FL	—	Active	·	Look up ↗
N6035Z	FL	1959	Active	●	Look up ↗
N6047Z	NY	1959	Active	·	Look up ↗
N6049Z	MT	1959	Active	●	Look up ↗
N6052Z	AZ	1959	Active	·	Look up ↗
N6053Z	VA	1959	Active	·	Look up ↗
N6058Z	AL	1960	Active	·	Look up ↗
N6079Z	CT	1960	Active	●	Look up ↗
N6112Z	MD	1960	Active	·	Look up ↗
N6120Z	SD	1960	Active	●	Look up ↗
N6125Z	AK	1960	Active	·	Look up ↗
N6126Z	KS	1960	Active	●	Look up ↗
N6127Z	CT	1960	Active	·	Look up ↗
N6140Z	CT	—	Active	●	Look up ↗
N6141Z	ND	1960	Active	●	Look up ↗
N6151Z	ND	1960	Active	●	Look up ↗
N6175Z	TX	1959	Active	·	Look up ↗
N6189Z	NJ	1960	Active	●	Look up ↗
N6196Z	SD	1960	Active	·	Look up ↗
N6200Z	FL	1960	Active	·	Look up ↗
N6203Z	ND	1960	Active	●	Look up ↗
N6208Z	MI	1960	Active	●	Look up ↗
N6218Z	TX	1960	Active	·	Look up ↗
N6225Z	KY	1963	Active	·	Look up ↗
N6238Z	OH	1960	Active	·	Look up ↗
N6239Z	WI	1960	Active	·	Look up ↗
N6260Z	FL	1960	Active	·	Look up ↗
N6264Z	CT	1960	Active	·	Look up ↗
N6265Z	FL	1960	Active	●	Look up ↗
N6266Z	NC	1960	Active	·	Look up ↗
N6267Z	TX	1960	Active	·	Look up ↗
N6268Z	ND	1960	Active	·	Look up ↗
N6279Z	GA	1960	Active	·	Look up ↗
N6291Z	NM	1960	Active	·	Look up ↗
N6304Z	PA	1960	Active	·	Look up ↗
N6319Z	FL	1960	Active	●	Look up ↗
N6355Z	AZ	1961	Active	·	Look up ↗
N6380Z	AR	1961	Active	·	Look up ↗
N6384Z	MN	1961	Active	●	Look up ↗
N6385Z	TX	—	Active	·	Look up ↗
N6387Z	NE	—	Active	·	Look up ↗
N6432Z	KS	1961	Active	·	Look up ↗
N6447Z	SD	1961	Active	●	Look up ↗
N6454Z	CT	1961	Active	●	Look up ↗
N6456Z	CT	1961	Active	·	Look up ↗
N6462Z	NV	1962	Active	·	Look up ↗
N6470Z	CA	1962	Active	●	Look up ↗
N6474Z	CO	1962	Active	●	Look up ↗
N6516Z	CO	—	Active	●	Look up ↗
N6520Z	SD	—	Active	●	Look up ↗
N6560Z	PA	—	Active	·	Look up ↗
N7307Z	ND	—	Active	·	Look up ↗
N762AB	MN	1961	Active	·	Look up ↗
N8186K	SD	1960	Active	●	Look up ↗
N999TX	TX	1960	Active	·	Look up ↗

Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)

05 / Sources & Methodology

Every count traces back to a primary US-government source

FAA Aircraft Registry →
Refreshed Apr 27, 2026

Available
NTSB CAROL →
Refreshed Apr 27, 2026

Available
Federal Register (FAA Airworthiness Directives) →
Refreshed Apr 27, 2026

Available

We render counts and lists as the agency publishes them. Read the methodology →