Type Record · As of May 3, 2026

PIPER PA-31T

Fixed Wing Multi Engine · P&W CANADA PT6A-60A

Registered

Year Range

1974–1984

NTSB Events

Airworthiness Directives

Aircraft Resources

Manufacturer · Piper Aircraft → Service Bulletins → Engine · Pratt & Whitney Canada → TCDS A20SO → 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-31T aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

OH 7.1% 6
FL 7.1% 6
DE 7.1% 6
VA 4.7% 4
OK 4.7% 4
PA 4.7% 4
KS 4.7% 4
NC 3.5% 3
TN 3.5% 3
WY 3.5% 3

+27 more states

By Decade of Manufacture

1970s 62.1% 54
1980s 17.2% 15
Unknown 20.7% 18

02 / NTSB Records

Events involving PIPER PA-31T aircraft

4 event(s) on file. Showing the most recent 4.

Nov 8, 2011
N39EH
Cheyenne, Wyoming
NTSB Docket →
Feb 4, 2010
N723JP
Columbia, Missouri
NTSB Docket →
Jul 13, 1974
N83CA
MISSING AIRCRAFT, UN Fatal
NTSB Docket →
Dec 31, 1970
N22AW
WINSTON SALEM, North Carolina
NTSB Docket →

03 / Airworthiness Directives

FAA directives applicable to PIPER PA-31T

30 directive(s) on file. Showing the most recent 25 · 5 more in the Federal Register.

Feb 7, 2017

Airworthiness Directives; Piper Aircraft, Inc. Airplanes

We are adopting a new airworthiness directive (AD) for certain Piper Aircraft, Inc. Models PA-31T, PA-31T1, PA-31T2, PA-31T3, and PA- 31P-350 airplanes. This AD requires repetitive detailed visual inspections of the wiring below the main circuit breaker panel for proper clearance and evidence of damage and rerouting o…

Atlas AD → Federal Register ↗
May 25, 2012

Airworthiness Directives; Piper Aircraft, Inc. Airplanes

We are superseding an existing airworthiness directive (AD) for certain Piper Aircraft, Inc. (type certificate previously held by The New Piper Aircraft Inc.) Models PA-31T and PA-31T1 airplanes. That AD currently requires correcting a model identification error on the aircraft data plate. Since we issued that AD, we…

Atlas AD → Federal Register ↗
Mar 9, 2012

Airworthiness Directives; Piper Aircraft, Inc. (Type Certificate Previously Held by The New Piper Aircraft Inc.) Airplanes

We propose to supersede an existing airworthiness directive (AD) that applies to certain Piper Aircraft, Inc. (type certificate previously held by The New Piper Aircraft Inc.) Models PA-31T and PA- 31T1 airplanes. The existing AD currently requires correcting a model identification error on the aircraft data plate. Si…

Atlas AD → Federal Register ↗
Sep 29, 2011

Airworthiness Directives; Piper Aircraft, Inc. Airplanes

We are revising an existing airworthiness directive (AD) for certain Piper Aircraft, Inc. Models PA-23, PA-23-160, PA-23-235, PA-23- 250, PA-23-250 (Navy UO-1), PA-E23-250, PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31P-350, PA-31T, PA-31T1, PA-31T2, PA-31T3, PA- 42, PA-42-720, and PA-42-1000 airplanes that ar…

Atlas AD → Federal Register ↗
May 20, 2011

Airworthiness Directives; Piper Aircraft, Inc. PA-23, PA-31, and PA-42 Airplanes

We propose to revise an existing airworthiness directive (AD) that applies to Piper Aircraft, Inc. PA-23, PA-31, and PA-42 airplanes. The existing AD currently establishes life limits for safety-critical nose baggage door components. That AD also requires you to replace those safety-critical nose baggage door componen…

Atlas AD → Federal Register ↗
Jun 19, 2009

Airworthiness Directives; Piper Aircraft, Inc. PA-23, PA-31, and PA-42 Series Airplanes

We are adopting a new airworthiness directive (AD) for certain Piper Aircraft, Inc. (Piper) PA-23 series airplanes and all PA-31 and PA-42 series airplanes. This AD establishes life limits for safety- critical nose baggage door components. This AD also requires you to replace those safety-critical nose baggage door co…

Atlas AD → Federal Register ↗
Mar 10, 2009

Airworthiness Directives; Piper Aircraft, Inc. PA-23, PA-31, and PA-42 Series Airplanes

We propose to adopt a new airworthiness directive (AD) for certain Piper Aircraft, Inc. (Piper) PA-23 series airplanes and all PA- 31 and PA-42 series airplanes. This proposed AD would establish life limits for safety-critical nose baggage door components. This proposed AD would also require you to replace those safet…

Atlas AD → Federal Register ↗
Sep 9, 2005

Airworthiness Directives; Goodrich De-icing and Specialty Systems “FASTprop” Propeller De-icers

The FAA is adopting a new airworthiness directive (AD) for Goodrich De-icing and Specialty Systems "FASTprop" propeller de- icers, part numbers P4E1188 series, P4E1601 series, P4E2200 series, P4E2271-10, P4E2575-7, P4E2575-10, P4E2598-10, P5855BSW, P6199SW, P6592SW, P6662SW, and P6975-11, installed. This AD requires i…

Atlas AD → Federal Register ↗
Jul 14, 2005

Airworthiness Directives; Hartzell Propeller Inc. Models HC-B3TN-2, HC-B3TN-3, HC-B3TN-5, HC-B3MN-3, HC-B4TN-3, HC-B4TN-5, HC-B4MN-5, HC-B4MP-3, HC-B4MP-5, and HC-B5MP-3 Propellers

The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. models HC-B3TN-2, HC-B3TN-3, HC-B3TN-5, HC- B3MN-3, HC-B4TN-3, HC-B4TN-5, HC-B4MN-5, HC-B4MP-3, HC-B4MP-5, and HC- B5MP-3 propellers, installed with propeller mounting bolts, part number (P/N) B-3339. This AD requires initial and repeti…

Atlas AD → Federal Register ↗
Apr 6, 2005

Airworthiness Directives; Goodrich De-icing and Specialty Systems “FASTprop” Propeller De-icers

The FAA proposes to adopt a new airworthiness directive (AD) for Goodrich De-icing and Specialty Systems "FASTprop" propeller de- icers, part numbers P4E1188 series, P4E1601 series, P4E2200 series, P4E2271-10, P4E2575-7, P4E2575-10, P4E2598-10, P5855BSW, P6199SW, P6592SW, P6662SW, and P6975-11, installed. This propose…

Atlas AD → Federal Register ↗
Jan 19, 2005

Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders

The FAA is adopting a new airworthiness directive (AD) to supersede Airworthiness Directive 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD a…

Atlas AD → Federal Register ↗
Oct 7, 2004

Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders

The FAA proposes to supersede Airworthiness Directive (AD) 2004-10-15, which applies to certain GTX 330 and GTX 330D Mode S transponders that are installed on airplanes. AD 2004-10-15 currently requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This proposed AD applies to certain GTX 33…

Atlas AD → Federal Register ↗
May 21, 2004

Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders

The FAA adopts a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders that are installed on aircraft. This AD requires you to install GTX 330/330D Software Upgrade Version 3.03, 3.04, or 3.05. This AD is the result of observations that the GTX 330 and GTX 330D may…

Atlas AD → Federal Register ↗
Dec 30, 2003

Airworthiness Directives; GARMIN International Inc. GTX 330 Mode S Transponders and GTX 330D Diversity Mode S Transponders

The FAA proposes to adopt a new airworthiness directive (AD) for certain GARMIN International Inc. GTX 330/GTX 330D Mode S transponders. This proposed AD would require you to install GTX 330/ 330D Software Upgrade Version 3.03. This proposed AD is the result of observations that the GTX 330 and GTX 330D may detect, fr…

Atlas AD → Federal Register ↗
Dec 3, 2003

Airworthiness Directives; The New Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31T, PA-31T1, PA-31T2, PA-31T3, and PA-31P-350 Airplanes

This amendment adopts a new airworthiness directive (AD) that applies to all The New Piper Aircraft, Inc. (Piper) Models PA-31, PA- 31-300, PA-31-325, PA-31-350, PA-31P, PA-31T, PA-31T1, PA-31T2, PA- 31T3, and PA-31P-350 airplanes. This AD requires you to install an inspection hole (or use for inspection the tooling h…

Atlas AD → Federal Register ↗
Jun 3, 2003

Airworthiness Directives; The New Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31T, PA-31T1, PA-31T2, PA-31T3, and PA-31P-350 Airplanes

This document proposes to adopt a new airworthiness directive (AD) that would apply to all The New Piper Aircraft, Inc. (Piper) Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31T, PA-31T1, PA-31T2, PA-31T3, and PA-31P-350 airplanes. This proposed AD would require you to install an inspection hole, conduct a…

Atlas AD → Federal Register ↗
Mar 30, 2001

Airworthiness Directives; The New Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31T, PA-31T1, PA-31T2, PA-31T3, and PA-31P-350 Airplanes

This amendment supersedes three existing airworthiness directives (AD's) that apply to certain The New Piper Aircraft, Inc. (Piper) Models PA-31, PA-31-300, PA-31P, PA-31T, and PA-31T1 airplanes. These AD's currently require you to repetitively inspect and/or modify the elevator structure. This AD initially retains th…

Atlas AD → Federal Register ↗
Dec 18, 2000

Airworthiness Directives; The New Piper Aircraft, Inc. (formerly Piper Aircraft Corporation) PA-31 Series Airplanes

This amendment supersedes Airworthiness Directive (AD) 80-26- 05, which currently requires you to repetitively inspect the main landing gear (MLG) inboard door hinges and attachment angles for cracks on certain The New Piper Aircraft, Inc. (Piper) PA-31 series airplanes. AD 80-26-05 also requires you to replace any cr…

Atlas AD → Federal Register ↗
Jul 21, 2000

Airworthiness Directives; The New Piper Aircraft, Inc. (Formerly Piper Aircraft Corporation) PA-31 Series Airplanes

This document proposes to revise an earlier proposed airworthiness directive (AD) that would apply to The New Piper Aircraft, Inc. (Piper) PA-31 series airplanes. The earlier NPRM would have superseded AD 80-26-05, which requires you to repetitively inspect the main landing gear (MLG) inboard door hinges and attachmen…

Atlas AD → Federal Register ↗
Jul 21, 2000

Airworthiness Directives; The New Piper Aircraft, Inc. Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, PA-31T, PA-31T1, PA-31T2, PA-31T3, and PA-31P-350 Airplanes

This document proposes to supersede three existing airworthiness directives (AD's) that apply to certain The New Piper Aircraft, Inc. (Piper) Models PA-31, PA-31-300, PA-31P, PA-31T, and PA- 31T1 airplanes. These AD's currently require you to repetitively inspect and/or modify the elevator structure. The proposed AD w…

Atlas AD → Federal Register ↗
Mar 23, 2000

Airworthiness Directives; The New Piper Aircraft, Inc. PA-31 Series Airplanes

This document adopts a new airworthiness directive (AD) that applies to all The New Piper Aircraft, Inc. PA-31 series airplanes that are equipped with pneumatic deicing boots. This AD requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This…

Atlas AD → Federal Register ↗
Oct 12, 1999

Airworthiness Directives; The New Piper Aircraft, Inc. PA-31 Series Airplanes

This document proposes to adopt a new airworthiness directive (AD) that would apply to all The New Piper Aircraft, Inc. (Piper) PA-31 series airplanes. The proposed AD would require revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. The proposed AD…

Atlas AD → Federal Register ↗
Jun 28, 1999

Airworthiness Directives; The New Piper Aircraft, Inc. PA-23, PA- 30, PA-31, PA-34, PA-39, PA-40, and PA-42 Series Airplanes

This amendment supersedes Airworthiness Directive (AD) 98-04- 27, which currently requires incorporating certain icing information into the FAA-approved airplane flight manual (AFM) of The New Piper Aircraft, Inc. (Piper) PA-23, PA-30, PA-31, PA-34, PA-39, PA-40, and PA-42 series airplanes. The Federal Aviation Admini…

Atlas AD → Federal Register ↗
Dec 3, 1998

Airworthiness Directives; BFGoodrich Avionics Systems, Inc. SKYWATCH SKY497 Installations with a Top-Mounted Antenna

This amendment adopts a new airworthiness directive (AD) that applies to all BFGoodrich Avionics Systems, Inc. (BFGoodrich) SKYWATCH SKY497 installations with a top-mounted antenna that are installed on aircraft. This AD requires incorporating information into the airplane flight manual (AFM) that specifies verifying…

Atlas AD → Federal Register ↗
Sep 24, 1998

Airworthiness Directives; The New Piper Aircraft, Inc. PA-23, PA- 30, PA-31, PA-34, PA-39, PA-40, and PA-42 Series Airplanes

This document proposes to supersede Airworthiness Directive (AD) 98-04-27, which currently requires incorporating certain icing information into the FAA-approved airplane flight manual (AFM) of The New Piper Aircraft, Inc. (Piper) PA-23, PA-30, PA-31, PA-34, PA-39, PA- 40, and PA-42 series airplanes. The Federal Aviat…

Atlas AD → Federal Register ↗

04 / Type Certificate Data Sheets

FAA TCDS for PIPER PA-31T

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

A8EA Historical Rev 23 · 08/07/2006

Piper Aircraft Inc.

Models: PA-31T, PA-31P, PA-31T3, PA-31P-350 + 2 more

Atlas TCDS → DRS ↗

06 / Supplemental Type Certificates

Modifications approved for PIPER PA-31T

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

08/15/2025

STC SA01844WI

Installation of Garmin GFC 600 Automatic Flight Control System

Garmin International Inc.

Atlas STC → DRS ↗
04/01/2025

STC SA04046CH PAGE 2

Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)

Acron Aviation Inc.

Atlas STC → DRS ↗
04/01/2025

STC SA02738CH (PAGE 2)

Installation of L-3 Communications Avionics Systems

Acron Aviation Inc.

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 ↗
02/02/2024

STC SA02658SE (1 OF 2)

Installation of Garmin GI 275 Multi-Function Display System

Garmin International Inc.

Atlas STC → DRS ↗
12/12/2023

STC SA02571SE (PAGE 2)

Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).

Garmin International 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 ↗
12/12/2022

STC SA02738CH (PAGE 2)

Installation of L-3 Communications Avionics Systems

L3Harris Aviation Products Inc.

Atlas STC → DRS ↗
12/12/2022

STC SA04046CH PAGE 2

Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)

L3Harris Aviation Products Inc.

Atlas STC → DRS ↗
09/20/2022

STC SA00843WI

Installation of Concorde Battery Corporation (VRSLA) Valve Regulated Sealed Lead Acid Battery

Aero-Mach Wilco LLC

Atlas STC → DRS ↗
07/06/2022

STC SA02203AK (PAGE 2)

Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV).

Genesys Aerosystems Inc.

Atlas STC → DRS ↗
06/06/2022

STC SA02203AK (PAGE 2)

Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV).

Genesys Aerosystems Inc.

Atlas STC → DRS ↗
02/02/2022

STC SA02571SE (PAGE 2)

Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).

Garmin International Inc

Atlas STC → DRS ↗
09/01/2021

STC SA11174SC PAGE 2

Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems

Honeywell International Inc (Bendix King)

Atlas STC → DRS ↗
09/01/2021

STC SA09856AC

Installation of BendixKing Aerowave 100 In-flight Data Link System for non-essential, non-required aircraft Cabin Systems & Equipments

Honeywell International Inc (Bendix King)

Atlas STC → DRS ↗
07/21/2021

STC SA02265SE

Installation of a camera housing

Airborne Sensor LLC

Atlas STC → DRS ↗
07/09/2021

STC SA02571SE (PAGE 2)

Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).

Garmin International Inc

Atlas STC → DRS ↗
06/23/2021

STC ST01930LA

Installation of Sandel Avionics SN4500 Electronic Horizontal Situation Indicator (EHSI)

Sandel Avionics LLC

Atlas STC → DRS ↗
06/14/2021

STC SA02658SE (1 OF 2)

Installation of Garmin GI 275 Multi-Function Display System

Garmin International Inc

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 ↗
01/12/2021

STC SA02426AK

Approval of the FreeFlight FDL-978-TX ADS-B system installed

FreeFlight Systems

Atlas STC → DRS ↗
06/23/2020

STC SA09759DS

Installation of an S-TEC 01326 Digital Flight Control System (DFCS)

S-TEC Corporation

Atlas STC → DRS ↗
06/04/2020

STC SA02268CH (PAGE 4)

Installation of Airwolf Filter Corp. Air Oil Separator

Airwolf Filter Corporation

Atlas STC → DRS ↗
05/27/2020

STC SA09759DS

Installation of an S-TEC 01326 Digital Flight Control System (DFCS)

S-TEC Corporation

Atlas STC → DRS ↗
01/13/2020

STC SA02658SE (1 OF 2)

Installation of Garmin GI 275 Multi-Function Display System

Garmin International Inc

Atlas STC → DRS ↗
01/07/2020

STC SA01452CH

Installation of an air ambulance conversion kit.

Med-Pac Inc.

Atlas STC → DRS ↗
12/19/2019

STC SA01452CH

Installation of an air ambulance conversion kit.

Med-Pac Inc.

Atlas STC → DRS ↗
09/09/2019

STC SA01714WI (1 OF 2)

Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R wit…

Garmin International Inc

Atlas STC → DRS ↗
07/16/2019

STC SA01861SE (PAGE 3)

Fabrication and installation of Landing Light Controller

Seaton Engineering Corp.

Atlas STC → DRS ↗

+ 227 more STCs on file

07 / PMA replacement parts

FAA-approved replacement parts for PIPER PA-31T

60+ 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.

SMR3D1472-10#https://drs.faa.gov/browse/excelExternalWindow/ED54B352ED383257862584740061334F.0001##

Pneumatic De-ice Timer

B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Goodrich P/N 3D1472-10
PMA holder →
SMR8400-15#https://drs.faa.gov/browse/excelExternalWindow/D45E3AA8B64BC752862583E1005D3DA2.0001##

Pneumatic De-icer Timer Kit

B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Modification Part
PMA holder →
30250#https://drs.faa.gov/browse/excelExternalWindow/19772C974C14AFA1862583660059F6F4.0001##

Door Cables

McFarlane Aviation Inc replaces 01679-04
PMA holder →
41250#https://drs.faa.gov/browse/excelExternalWindow/809175DF11C63236862581FD0069EED3.0001##

Door Cables

McFarlane Aviation Inc replaces 01679-03
PMA holder →
70000#https://drs.faa.gov/browse/excelExternalWindow/F8C436029DCAD401862581FD0069EED2.0001##

Door Cables

McFarlane Aviation Inc replaces 47716-04
PMA holder →
ST-579#https://drs.faa.gov/browse/excelExternalWindow/2600667AFE8F1BB1862578ED00662F34.0001##

Yaw Damper System

S-TEC Corporation replaces Modification Part
PMA holder →
ST-574#https://drs.faa.gov/browse/excelExternalWindow/A6EE4E5FF2868813862578ED00662EF6.0001##

System 65Two Axis Automatic Flight Guidance System

S-TEC Corporation replaces Modification Part
PMA holder →
ASPA31CD#https://drs.faa.gov/browse/excelExternalWindow/322035072C3B478A862576B0005C4F53.0001##

Cabin Door Lock

Aircraft Security & Alert Systems LLC replaces 764 049
PMA holder →
4544-00-3#https://drs.faa.gov/browse/excelExternalWindow/FB28B54814F3AFFE8625841D00570E7D.0001##

Motor, Permanent Magnet, Bi-Directional

Aero Fluid Products replaces Piper 475-203
PMA holder →
4544-00-5#https://drs.faa.gov/browse/excelExternalWindow/1EF5D1F9AB67B9238625841D00570E96.0001##

Motor Fan

Aero Fluid Products replaces Piper 51349-3
PMA holder →
3623-00-3#https://drs.faa.gov/browse/excelExternalWindow/E77133489463F6D88625841D00570E4E.0001##

Coaxial Solenoid Valve, Normally Closed

Aero Fluid Products replaces Piper 492-234
PMA holder →
CD21516#https://drs.faa.gov/browse/excelExternalWindow/999605C6EE91C43486257FE70078448A.0001##

Gasket

Hartzell Engine Technologies LLC replaces B44A06
PMA holder →
SMR1461-1#https://drs.faa.gov/browse/excelExternalWindow/A1E5127980732165862583E1005D3F56.0001##

Engine Inlet Anti-Icer

B/E Aerospace Inc, DBA, SMR Technologies Inc replaces 5E1461
PMA holder →
73000#https://drs.faa.gov/browse/excelExternalWindow/1C77C8389473EA78862583660059F6F6.0001##

Door Cables

McFarlane Aviation Inc replaces 47716-05
PMA holder →
P29S5D2100-6-2#https://drs.faa.gov/browse/excelExternalWindow/5CACE48C6FCE770786258288005E2630.0001##

Nacelle to Tip Pneumatic De-Icer, RH

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Modification Part
PMA holder →
29S5D2100-6-2#https://drs.faa.gov/browse/excelExternalWindow/0FA000D727150D7A86258288005E262E.0001##

Nacelle to Tip Pneumatic De-Icer, RH

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Modification Part
PMA holder →
SMR1990-1#https://drs.faa.gov/browse/excelExternalWindow/06D290F66E800FA686257E07005FC7B3.0001##

Engine Inlet Anti-Icer

B/E Aerospace Inc, DBA, SMR Technologies Inc replaces 5E1990-1
PMA holder →
CD29124#https://drs.faa.gov/browse/excelExternalWindow/318F1176974723BC86257AAF00596187.0001##

Regulator Assembly

C & D Associates Inc replaces Piper P/N 756561
PMA holder →
8412-3#https://drs.faa.gov/browse/excelExternalWindow/FDF88D398F37B54D8525703E006A35F6.0001##

Flexible Shaft Assembly

CEF Industries LLC replaces Piper 486-542
PMA holder →
AHE18E29-2#https://drs.faa.gov/browse/excelExternalWindow/3D16161656C946F9862572F0006DD940.0001##

Nozzle Holder Assembly

Aircraft Heating & Electrical replaces Janitrol 18E29-2
PMA holder →
4E1594#https://drs.faa.gov/browse/excelExternalWindow/CEDE81383B48AB0586257C14005BEDC5.0001##

Mounting Plate Assembly

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 4E1594
PMA holder →
4E1594#https://drs.faa.gov/browse/excelExternalWindow/A0482B866E4DCFC886257A990064D7CB.0001##

Mounting Plate Assembly

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Goodrich P/N 4E1594
PMA holder →
3E1807#https://drs.faa.gov/browse/excelExternalWindow/071717A51434B0C986257C14005BEDA8.0001##

Brush Block Mounting Bracket, LH Rotation

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 758-235
PMA holder →
3E1570#https://drs.faa.gov/browse/excelExternalWindow/1AE5D7B0FC3793BF86257C14005BEDA3.0001##

Rubber Spacer, Prop Hub Extension

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 757-585
PMA holder →
3E1807#https://drs.faa.gov/browse/excelExternalWindow/632F6BBC2CF1F50E86257A990064D7A8.0001##

Brush Block Mounting Bracket, LH Rotation

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 758-235
PMA holder →
3E1570#https://drs.faa.gov/browse/excelExternalWindow/0EEE8D7F621C334B86257A990064D7A6.0001##

Rubber Spacer, Prop Hub Extension

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 757-585
PMA holder →
3E1452#https://drs.faa.gov/browse/excelExternalWindow/08C4AEE4F2130B6686257C14005BEDA2.0001##

Slip Ring Wire Harness

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 751-992
PMA holder →
3E1452#https://drs.faa.gov/browse/excelExternalWindow/753F96F54D66FE6786257A990064D7A5.0001##

Slip Ring Wire Harness

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 751-992
PMA holder →
23S-2100-6-2#https://drs.faa.gov/browse/excelExternalWindow/0D5CB1E22E6CC1A686257B48006FBEA0.0001##

Nacelle-to-Tip De-icer, RH

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 754-603
PMA holder →
23S-2100-6-2#https://drs.faa.gov/browse/excelExternalWindow/63922053204B2DF286257A990064D716.0001##

Nacelle-to-Tip De-icer, RH

UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 754-603
PMA holder →
RA-10E74-1#https://drs.faa.gov/browse/excelExternalWindow/B20E44904207F72D86257FE700783938.0001##

Mixer Head

Hartzell Engine Technologies LLC replaces 10E74-1
PMA holder →
CD12022#https://drs.faa.gov/browse/excelExternalWindow/95894E6F2C398F0986257FC6006F1F4E.0001##

Heater

Hartzell Engine Technologies LLC replaces 62D33, 62D33-1, 62D33-2, 10E21-1, 10E21-2, 10E21-3, 10E21-4(EL)
PMA holder →
CD12022-1#https://drs.faa.gov/browse/excelExternalWindow/F298EFC80724CE9786257FC6006F1EE5.0001##

Heater

Hartzell Engine Technologies LLC replaces 62D33, 62D33-1, 62D33-2, 10E21-1, 10E21-2, 10E21-3, 10E21-4(EL)
PMA holder →
CD60108#https://drs.faa.gov/browse/excelExternalWindow/5DDA1517F6AC33A186257CCC00631030.0001##

O-Ring

C & D Associates Inc replaces Janitrol P/N 25C85-88
PMA holder →
LM29710#https://drs.faa.gov/browse/excelExternalWindow/AB2CC044CB23F5AA86257FC5006D9F5C.0001##

CUP

Timken Corporation replaces LM29710
PMA holder →
LM29749#https://drs.faa.gov/browse/excelExternalWindow/B10BA1E66142F9DE86257FC5006D9F6A.0001##

CONE

Timken Corporation replaces LM29749
PMA holder →
LM29710#https://drs.faa.gov/browse/excelExternalWindow/7CA409A586ED20B386257D2A00574642.0001##

CUP

Timken Corporation replaces LM29710
PMA holder →
LM29749#https://drs.faa.gov/browse/excelExternalWindow/B7D8FF7F8DE4E4B786257D2A0057464B.0001##

CONE

Timken Corporation replaces LM29749
PMA holder →
APS164-03906#https://drs.faa.gov/browse/excelExternalWindow/4B085B81625A16778625721100713EA0.0001##

Brake Disc

Aviation Products Systems Inc replaces Parker Hannifin Corp. (formerly Cleveland Wheels & Brakes) P/N 164-03906
PMA holder →
-#https://drs.faa.gov/browse/excelExternalWindow/EC9668A0AD43FCEF8625754C00778493.0001##

Propeller Auto-Feather Installation

Frakes Aviation replaces -
PMA holder →

+ 20 more PMA parts on file

09 / Equivalent Level of Safety findings

ELOS findings issued for PIPER PA-31T

1 ELOS finding on file. The FAA issues an ELOS when an applicant proposes an alternative means that achieves the same safety outcome as a literal regulation — a standing record of which certification deviations the agency has approved for this model series.

PA-31T_1971-11-11

Certification of Piper Model PA-31T

§ 23.75, 23.77, 23.145, 23.161…

11/11/1971 →

04 / Regulations watching this type

Advisory Circulars and Federal Register activity for PIPER PA-31T

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 87 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.

87 of 87

N-number	St	Year	Status	NTSB	FAA
N108UC	LA	1979	Active	·	Look up ↗
N111JF	NC	1981	Active	·	Look up ↗
N115BM	OH	1982	Active	·	Look up ↗
N115PC	MI	1977	Active	·	Look up ↗
N1183G	TN	1979	Active	·	Look up ↗
N118WC	CA	1979	Active	·	Look up ↗
N131PC	WY	1977	Active	·	Look up ↗
N139CS	CT	—	Active	·	Look up ↗
N14TN	AL	1981	Active	·	Look up ↗
N154CA	IN	1980	Active	·	Look up ↗
N155MC	TX	1978	Active	·	Look up ↗
N171JP	VA	—	Active	·	Look up ↗
N178SG	FL	—	Active	·	Look up ↗
N181DC	OK	—	Not Active	·	Look up ↗
N186GA	MS	—	Active	·	Look up ↗
N195AA	PA	1978	Active	·	Look up ↗
N1976J	PA	1974	Active	·	Look up ↗
N200PG	FL	1979	Active	·	Look up ↗
N20WL	—	1976	Active	·	Look up ↗
N227TM	NE	—	Active	·	Look up ↗
N22AW	OR	1979	Active	●	Look up ↗
N22WF	MN	1978	Active	·	Look up ↗
N233PS	KS	1978	Active	·	Look up ↗
N284SB	KS	—	Active	·	Look up ↗
N28BG	WA	1976	Active	·	Look up ↗
N294ZP	DE	1980	Active	·	Look up ↗
N302TA	DE	1980	Active	·	Look up ↗
N30DU	MT	—	Active	·	Look up ↗
N324AR	TX	—	Active	·	Look up ↗
N333XX	VT	—	Active	·	Look up ↗
N336P	NJ	1974	Active	·	Look up ↗
N390JD	MD	1978	Active	·	Look up ↗
N396JH	ID	—	Active	·	Look up ↗
N39EH	DE	1978	Active	●	Look up ↗
N400CM	CO	1976	Active	·	Look up ↗
N406RS	FL	1979	Active	·	Look up ↗
N40TT	MN	1975	Active	·	Look up ↗
N427DD	MI	1978	Active	·	Look up ↗
N427TA	NC	1977	Active	·	Look up ↗
N43WH	PA	1982	Active	·	Look up ↗
N444PC	UT	1979	Active	·	Look up ↗
N444RC	OH	1975	Active	·	Look up ↗
N455MM	DE	1980	Active	·	Look up ↗
N473GG	OH	—	Active	·	Look up ↗
N47JF	ND	—	Active	·	Look up ↗
N497WW	NC	1978	Active	·	Look up ↗
N521PM	FL	1977	Active	·	Look up ↗
N524AM	WY	1979	Active	·	Look up ↗
N525SW	NJ	1979	Active	·	Look up ↗
N528CH	NM	1980	Active	·	Look up ↗
N52TT	MT	1979	Active	·	Look up ↗
N53MC	DE	1978	Active	·	Look up ↗
N53TA	IN	1978	Active	·	Look up ↗
N545RK	UT	—	Active	·	Look up ↗
N55R	LA	1976	Active	·	Look up ↗
N59EH	GA	1978	7	·	Look up ↗
N5D	UT	1978	Active	·	Look up ↗
N606DW	NE	1981	Active	·	Look up ↗
N6107A	GA	1978	Active	·	Look up ↗
N6175A	OH	1979	Active	·	Look up ↗
N620DB	TN	1979	Active	·	Look up ↗
N65BA	KS	1980	Active	·	Look up ↗
N67DW	KS	1976	Active	·	Look up ↗
N68BJ	PA	1979	Active	·	Look up ↗
N723JP	OH	1978	Active	●	Look up ↗
N730PT	NV	1977	Active	·	Look up ↗
N770MG	DC	—	Active	·	Look up ↗
N77NL	SC	1977	Active	·	Look up ↗
N781CK	VA	1978	Active	·	Look up ↗
N7FL	VA	1978	Active	·	Look up ↗
N801HL	AZ	1979	Active	·	Look up ↗
N80MA	CA	—	Active	·	Look up ↗
N83CA	VA	1980	Active	●	Look up ↗
N843DB	WA	1978	Active	·	Look up ↗
N89JA	WY	—	Active	·	Look up ↗
N90FS	OK	1979	Active	·	Look up ↗
N910AG	FL	1984	Active	·	Look up ↗
N910HG	OH	—	Active	·	Look up ↗
N910JP	—	1977	Active	·	Look up ↗
N913NC	TN	1981	Active	·	Look up ↗
N937TT	FL	1977	Active	·	Look up ↗
N950CT	OK	1977	Active	·	Look up ↗
N970PS	SD	1979	Active	·	Look up ↗
N982K	OK	1978	Active	·	Look up ↗
N990LR	MS	1978	Active	·	Look up ↗
N998LM	DE	1980	Active	·	Look up ↗
N99VA	NV	1976	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 →