Fixed Wing Multi Engine · LYCOMING 0-320 SERIES · as of Sep 21, 2026
Resources Manufacturer · Piper Aircraft ↗ Service Bulletins ↗ Engine · Lycoming Engines ↗ TCDS 1A10 ↗ Type Club · The Piper Owner Society ↗ Owner Forum · Piper Forum ↗
Distribution · currently registered
By state (top 10)
- IL 10.9% 5
- FL 10.9% 5
- OK 6.5% 3
- TX 4.3% 2
- NY 4.3% 2
- CA 4.3% 2
- OH 4.3% 2
- WI 4.3% 2
- KY 4.3% 2
- AZ 4.3% 2
+17 more states
By decade of manufacture
- 1950s 68.1% 32
- 1960s 2.1% 1
- Unknown 29.8% 14
NTSB records
5 event(s) on file. Showing the most recent 5.
- Mar 19, 1985 N2154P JUSTIN, Texas NTSB docket ↗
- Jul 30, 1974 N203S GRAND JCTN, Colorado NTSB docket ↗
- Jan 27, 1969 N2005P LONDON, Ohio NTSB docket ↗
- Jun 28, 1964 N2154P FT WORTH, Texas NTSB docket ↗
- Feb 17, 1964 N1329P LOCKPORT, Illinois NTSB docket ↗
NASA ASRS reports · 4
De-identified, pilot-written, voluntary and not investigated — the reporter's perspective; cannot infer prevalence.
- ACN 2035634 Fuel Management Issues PA-23 Apache/Geronimo Apache Flight instructor on training flight with student in a PA23 aircraft reported engine failure in cruise. Flight instructor diverted and landed without incident.
- ACN 2053196 General Aviation Flight Training Reports PA-23-250 Aztec Flight Instructor with student reported a NMAC event during ATC assigned altitude with a large transport aircraft. The flight Instructor took evasive action to avoid a collision.
- ACN 2053664 General Aviation Flight Training Reports PA-28 Cherokee/Archer/Dakota/Pillan/Warrior PA-28 flight Instructor with student reported the Tower Controller issued them a heading in the traffic pattern that could have put them on a collision course with another aircraft.
- ACN 2061483 Near Midair Collision Incidents Cessna 150 Flight Instructor on training flight with student reported NMAC with another aircraft doing flight training.
Airworthiness directives
4 directive(s) on file. Showing the most recent 4.
- Oct 31, 2022
Airworthiness Directives; Piper Aircraft, Inc. (Type Certificate Previously Held by The New Piper Aircraft Inc. and Piper Aircraft Corporation) Airplanes
The FAA is withdrawing a notice of proposed rulemaking (NPRM) and supplemental notice of proposed rulemaking (SNPRM) that proposed to supersede Airworthiness Directive (AD) 92-13-04 for certain Piper Aircraft Corporation (now Piper Aircraft, Inc.) (Piper) Model PA-23-150 (type certificated as PA-23) and PA-23-160 airp…
- 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…
- 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…
- Feb 12, 1998
Airworthiness Directives; The New Piper Aircraft, Inc. (Formerly Piper Aircraft Corporation) Models PA-23 (PA-23-150), PA-23-160, PA-23- 235, and PA-23-250 Airplanes
This document proposes to revise an earlier proposed airworthiness directive (AD) that would have required installing external fuel ramp assemblies on The New Piper Aircraft, Inc. (Piper) Models PA-23 (PA-23-150), PA-23-160, PA-23-235, and PA-23-250 airplanes, and incorporating pilots' operating handbook (POH) revisio…
Type certificate data sheets · 1 match in the FAA catalog
- 1A10 Piper Aircraft Inc. Historical Rev 49 · 11/04/1997
Models: PA-23-160, PA-23-250 (Navy UO-1), PA-23-235, PA-23 + 2 more
SAIBs · 4 on file · advisory, not mandatory
- 02/21/2017 SAIB CE-17-08 Main Landing Gear Drag Link Bolt DRS ↗
- 09/17/2012 SAIB CE-12-44 Exhaust systems DRS ↗
- 01/09/2008 SAIB CE-08-11 Landing Gear DRS ↗
- 09/15/2004 SAIB CE-04-88 SAIB CE-04-88 — DRS ↗
Supplemental type certificates · 539 on file
- 03/03/2026 STC SA02511SE Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 07/24/2025 STC SA02511SE Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 07/21/2025 STC SA02511SE Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. 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. DRS ↗
- 04/01/2025 STC SA02738CH (PAGE 2) Installation of L-3 Communications Avionics Systems Acron Aviation Inc. DRS ↗
- 11/22/2024 STC SA04378CH Installation of an engine modified per STC SE04349CH SureFly Partners Ltd. DRS ↗
- 11/20/2024 STC SA01120SE Installation of Door Steward. Mountain View Aviation LLC 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 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 DRS ↗
- 08/21/2024 STC SA01757WI To allow the use of UL91 or UL94 (minimum) grade aviation fuel Swift Fuels LLC DRS ↗
- 06/18/2024 STC SA04568CH Installation of the uAvionix tailBeaconX, a tail mounted position light with integrated Automatic Dependent Surveillance - Broadcast (ADS-B) Out and 1090MHz Mode-S transponder func… uAvionix Corporation DRS ↗
- 06/13/2024 STC SA02511SE Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 06/13/2024 STC SA02511SE (2 OF 2) Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 06/13/2024 STC SA02511SE (2 OF 3) Installation of replacement fuel quantity indicator sending unit(s) CiES Inc. DRS ↗
- 02/02/2024 STC SA02658SE (1 OF 2) Installation of Garmin GI 275 Multi-Function Display System Garmin International Inc. DRS ↗
- 12/12/2023 STC SA02571SE (PAGE 1) Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display). Garmin International Inc. 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. DRS ↗
- 11/08/2023 STC SA00148IB Installation of the MT-Propeller Entwicklung GmbH model MTV-12-B-C-F/CF188-53() propeller MT-Propeller Entwicklung GmbH DRS ↗
- 11/06/2023 STC SA00148IB Installation of the MT-Propeller Entwicklung GmbH model MTV-12-B-C-F/CF188-53() propeller MT-Propeller Entwicklung GmbH DRS ↗
- 08/10/2023 STC SA02019WI Installation of the Trig Avionics TX56, TX56A, TX57, or TX57A VHF Nav-Com Radio. Peregrine 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. DRS ↗
- 06/29/2023 STC SA04400NY Installation of the Integrated Back-up Battery System (IBBS) TCW Technologies LLC DRS ↗
- 05/22/2023 STC SA01435LA Installation of engines modified with Firewall Forward Technologies LLC modified camshaft Centri-Lube Technologies LLC DRS ↗
- 05/08/2023 STC SA04192NY KFD 900 Primary Flight Display System Additional Functions Honeywell International Inc DRS ↗
- 04/05/2023 STC SA00756DE Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position Se… Peregrine DRS ↗
- 04/04/2023 STC SA11137SC Installation of Plane-Power ALT-FLX alternator Hartzell Engine Technologies, LLC 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 DRS ↗
- 12/28/2022 STC SA02987CH Installation of the Electroair Electronic Ignition System Electroair Acquisition Corporation DRS ↗
- 12/23/2022 STC SA04586CH Installation of Electroair Back Up Battery Panel System Control Electroair Aquisition Corp. DRS ↗
- 12/12/2022 STC SA02738CH (PAGE 2) Installation of L-3 Communications Avionics Systems L3Harris Aviation Products Inc. DRS ↗
+ 509 more STCs on file
PMA replacement parts · 60+ on file
- 7035-34#https://drs.faa.gov/browse/excelExternalWindow/E0AA8D4B8F869F088625840B0063CAAA.0001## Valve-Regulated Lead-Acid Battery Teledyne Battery Products replaces 450 035
- SMR8400-06#https://drs.faa.gov/browse/excelExternalWindow/091E970A227E7112862583E1005D3D20.0001## Pneumatic De-icer Timer Kit B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Modification Part
- GF28466-00#https://drs.faa.gov/browse/excelExternalWindow/B770000930872FF186257ABC00762A02.0001## Fairing Assy -Stabilator Tip Knots 2U Ltd replaces 28466-00, 28466-02.
- 2-43-9#https://drs.faa.gov/browse/excelExternalWindow/EEF77DA42E4C30FE862577C2004EC9F0.0001## Starter Cable Conversion Lead Bogert Aviation, Inc. replaces Modification Part
- 2-38-7#https://drs.faa.gov/browse/excelExternalWindow/3A587D44CA925A65862577C2004EC99D.0001## Starter Cable Conversion Lead Bogert Aviation, Inc. replaces Modification Part
- 2-43-8#https://drs.faa.gov/browse/excelExternalWindow/A8740B8BF6D51257862577C2004EC9C6.0001## Starter Cable Conversion Lead Bogert Aviation, Inc. replaces Modification Part
- 2-38-6#https://drs.faa.gov/browse/excelExternalWindow/770867298F63E55F862577C2004EC979.0001## Starter Cable Conversion Lead Bogert Aviation, Inc. replaces Modification Part
- 2-40-4#https://drs.faa.gov/browse/excelExternalWindow/DBB3C1E3615CD8C0862577C2004EC94C.0001## Starter Cable Conversion Lead Bogert Aviation, Inc. replaces Modification Part
- 2-40-1#https://drs.faa.gov/browse/excelExternalWindow/1033AB624CC6BC1D862577C2004EC8F6.0001## Starter Cable Conversion Lead Bogert Aviation, Inc. replaces Modification Part
- 2-40-2#https://drs.faa.gov/browse/excelExternalWindow/B1520D29039FB2D7862577C2004EC922.0001## Starter Cable Conversion Lead Bogert Aviation, Inc. replaces Modification Part
- D8001-HCJ#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163471891020240625133925.0001## FUEL PUMP McFarlane Aviation Inc replaces B8001-H, 33959-2
- B8001-HCJ#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146701459220240625133924.0001## FUEL PUMP McFarlane Aviation Inc replaces B8001-H, 33959-2
- D8001-GCJ#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196592634120240625133924.0001## FUEL PUMP McFarlane Aviation Inc replaces B8001-G, 33959-3
- B8001-GCJ#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182656663920240625133924.0001## FUEL PUMP McFarlane Aviation Inc replaces B8001-G, 33959-3
- EA-26000-24#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199336996220230105195540.0001## EA-26000 Series EIS Back-up Battery System Panel Electroair Acquisition Corporation replaces Modification Part
- EA-26000-12#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162632081920230105195520.0001## EA-26000 Series EIS Back-up Battery System Panel Electroair Acquisition Corporation replaces Modification Part
- K7336-201#https://drs.faa.gov/browse/excelExternalWindow/8BE5E995225AE99D86258313004D1F46.0001## INFLATABLE KIT ASSEMBLY AmSafe Inc replaces Modification Part
- 3E1206-1#https://drs.faa.gov/browse/excelExternalWindow/189FFB82393AE58A86257C14005BED9D.0001## Brush, Electric Prop De-Icer System UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753-427
- 3E1206-1#https://drs.faa.gov/browse/excelExternalWindow/1FB193F7ECD0A7DF86257A990064D79F.0001## Brush, Electric Prop De-Icer System UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753-427
- 23S-2039-1-2#https://drs.faa.gov/browse/excelExternalWindow/91FA9F4037BD23B086257B48006FBE20.0001## Nacelle-to- Tip De-icer, RH UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 412 Goodrich P/N 23S-2039-1-2
- 23S-2039-2-1#https://drs.faa.gov/browse/excelExternalWindow/B05CA0AAF31FBBC886257B48006FBE21.0001## Horizontal Stabilizer De-icer, LH UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 413 Goodrich P/N 23S-2039-2-1
- 23S-2039-3-1#https://drs.faa.gov/browse/excelExternalWindow/4C5D8D4646FA9BBF86257B48006FBE24.0001## Vertical Fin De-icer UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 415 Goodrich P/N 23S-2039-3-1
- 23S-2039-2-2#https://drs.faa.gov/browse/excelExternalWindow/1BF8D16D219F969C86257B48006FBE23.0001## Horizontal Stabilizer De-icer, RH UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 414 Goodrich P/N 23S-2039-2-2
- 23S-2039-1-1#https://drs.faa.gov/browse/excelExternalWindow/2FD5F50ABD2C803D86257B48006FBE1F.0001## Nacelle-to- Tip De-icer, LH UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 411 Goodrich P/N 23S-2039-1-1
- 23S-2039-2-2#https://drs.faa.gov/browse/excelExternalWindow/C7196B0C5B073EC986257A990064D6C8.0001## Horizontal Stabilizer De-icer, RH UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 414 Goodrich P/N 23S-2039-2-2
- 23S-2039-1-1#https://drs.faa.gov/browse/excelExternalWindow/73A6B65A95FBE49786257A990064D6C4.0001## Nacelle-to- Tip De-icer, LH UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 411 Goodrich P/N 23S-2039-1-1
- 23S-2039-1-2#https://drs.faa.gov/browse/excelExternalWindow/3BEDD560A2D9919C86257A990064D6C6.0001## Nacelle-to- Tip De-icer, RH UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 412 Goodrich P/N 23S-2039-1-2
- 23S-2039-3-1#https://drs.faa.gov/browse/excelExternalWindow/2F4609075310D3F086257A990064D6C9.0001## Vertical Fin De-icer UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 415 Goodrich P/N 23S-2039-3-1
- 23S-2039-2-1#https://drs.faa.gov/browse/excelExternalWindow/1A707C0517149D3C86257A990064D6C7.0001## Horizontal Stabilizer De-icer, LH UTC Aerospace Systems, Goodrich Sensors & Integrated Systems replaces Piper P/N 753 413 Goodrich P/N 23S-2039-2-1
- J-3804-20#https://drs.faa.gov/browse/excelExternalWindow/FE0BF72FC7519C6F8625786500732591.0001## Lord Engine Mounting Kit Lord Corporation replaces 475122
- J-3804-20#https://drs.faa.gov/browse/excelExternalWindow/170B0E620CE43A6D8625786500732849.0001## Lord Engine Mounting Kit Lord Corporation replaces 475122
- SMR2292-2#https://drs.faa.gov/browse/excelExternalWindow/6C517C3434CB1A938625785E00618B6B.0001## Propeller De-Icer B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Goodrich 4E2292-2
- SMR2292-2#https://drs.faa.gov/browse/excelExternalWindow/11E6A11F6F1C3AA086257823005909CC.0001## Propeller De-Icer B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Goodrich 4E2292-2
- SMR2292-10#https://drs.faa.gov/browse/excelExternalWindow/4FCE12438BFE3AE78625785E00618BC3.0001## Propeller De-Icer B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Goodrich 4E2292-10, Safeway 6988, Hartzell 4H2292-10
- SMR2292-10#https://drs.faa.gov/browse/excelExternalWindow/0CFE0BBB931621DA8625782300590A25.0001## Propeller De-Icer B/E Aerospace Inc, DBA, SMR Technologies Inc replaces Goodrich 4E2292-10, Safeway 6988, Hartzell 4H2292-10
- SK1414#https://drs.faa.gov/browse/excelExternalWindow/8DF059AFF1C5BC1A862582D300747473.0001## Radome Boot Skandia, Inc. replaces Modification Part
- STS-A12#https://drs.faa.gov/browse/excelExternalWindow/8EC299DCBAF7E7818625825900708E55.0001## Solenoid Contactor - Auxiliary Power or Battery Master Lamar Technologies LLC replaces 484 373 (24059)
- STS-M12#https://drs.faa.gov/browse/excelExternalWindow/B39349B0224D7A198625825900708E54.0001## Solenoid Contactor - Starter Lamar Technologies LLC replaces 484 373 (24059)
- STS-S12#https://drs.faa.gov/browse/excelExternalWindow/89EAFCF0D302FB7D8625825900708E52.0001## Solenoid Contactor - Starter Lamar Technologies LLC replaces 487 149 (001464)
- STS-S12#https://drs.faa.gov/browse/excelExternalWindow/BA141BFA49FD117F86257DE9004D1135.0001## Solenoid Contactor Starter Sky-Tec Partners Ltd replaces 487 149 (001464)
+ 20 more PMA parts on file
Advisory circulars & Federal Register
Advisory circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register · Parts 91 & 43
- 2026-09-14 Use of Certain Restricted Category Aircraft for the Transport of Firefighters for Wildfire Suppression FR ↗
- 2026-07-31 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
- 2026-07-02 Enabling Supersonic Overland Flight FR ↗
- 2026-07-01 Mechanic Certification: Inspection Rating and Recent Experience Requirements FR ↗
- 2026-06-30 Designation-Restrict the Operation of Unmanned Aircraft in Close Proximity to a Fixed Site Facility; Extension of Comment Period FR ↗
Registered N-numbers · 47
47 of 47 ● NTSB events on file · orange tails have Atlas pages · Look up queries the live FAA registry (owner, address, last airworthiness)
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N10RK | TX | 1957 | · | Look up ↗ |
| N1115J | ID | — | · | Look up ↗ |
| N1150P | NY | 1955 | · | Look up ↗ |
| N11AE | TX | 1956 | · | Look up ↗ |
| N1204P | MA | 1955 | · | Look up ↗ |
| N1329P | CA | — | ● | Look up ↗ |
| N1345P | OK | 1955 | · | Look up ↗ |
| N1366P | OH | — | · | Look up ↗ |
| N1398P | GA | 1956 | · | Look up ↗ |
| N1421P | AK | 1956 | · | Look up ↗ |
| N1458P | WI | — | · | Look up ↗ |
| N1463P | MS | 1956 | · | Look up ↗ |
| N1487P | NV | — | · | Look up ↗ |
| N1491P | OK | 1956 | · | Look up ↗ |
| N1492P | KY | 1956 | · | Look up ↗ |
| N1496P | AZ | 1956 | · | Look up ↗ |
| N16DM | CT | 1962 | · | Look up ↗ |
| N2003P | IL | 1956 | · | Look up ↗ |
| N2005P | FL | — | ● | Look up ↗ |
| N2016P | NY | — | · | Look up ↗ |
| N2039P | FL | 1956 | · | Look up ↗ |
| N203S | AL | 1956 | ● | Look up ↗ |
| N2086P | WY | 1956 | · | Look up ↗ |
| N2090P | IL | — | · | Look up ↗ |
| N2114P | SD | — | · | Look up ↗ |
| N2138P | VA | 1956 | · | Look up ↗ |
| N2152P | AZ | 1956 | · | Look up ↗ |
| N2154P | WI | 1956 | ● | Look up ↗ |
| N2203P | LA | 1956 | · | Look up ↗ |
| N2215P | MN | 1956 | · | Look up ↗ |
| N2222P | DE | 1956 | · | Look up ↗ |
| N2247P | KY | — | · | Look up ↗ |
| N2248P | IL | 1957 | · | Look up ↗ |
| N2270P | OH | 1957 | · | Look up ↗ |
| N2284P | OK | 1957 | · | Look up ↗ |
| N3055P | WA | 1957 | · | Look up ↗ |
| N3057P | MI | — | · | Look up ↗ |
| N3072P | IL | — | · | Look up ↗ |
| N3113P | IL | — | · | Look up ↗ |
| N3141P | DE | 1957 | · | Look up ↗ |
| N3156P | FL | 1957 | · | Look up ↗ |
| N3176P | FL | 1957 | · | Look up ↗ |
| N3177P | — | — | · | Look up ↗ |
| N3191P | CA | 1957 | · | Look up ↗ |
| N3207P | MI | 1957 | · | Look up ↗ |
| N3209P | UT | 1957 | · | Look up ↗ |
| N804VG | FL | 1956 | · | Look up ↗ |
Source — FAA Aircraft Registry
Sources
- FAA Aircraft Registry ↗ Refreshed Apr 27, 2026 Available
- NTSB CAROL ↗ Refreshed Jun 10, 2026 Available
- Federal Register (FAA Airworthiness Directives) ↗ Refreshed Apr 27, 2026 Available