# N504AF: 2020 Piper PA-28-181 - Status: Valid registration - Airframe: [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181) (registry code 7102832, 4 seats) - Engine: [Lycoming IO-360-B4A](https://openairdocs.org/engine/lycoming-io-360-b4a) (registry code 41867) - Data sheets: [TCDS 2A13](https://openairdocs.org/tcds/2A13) (Piper Aircraft Inc.), [TCDS 1E10](https://openairdocs.org/tcds/1E10) (Lycoming Engines) (OpenAirDocs) - Serial number: 28020004 - Year built: 2020 - Type: Fixed wing single engine - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: December 4, 2020 - Certificate issued: February 11, 2021 - Expires: February 29, 2028 - Mode S code: A648D2 - Registered owner: [Ameriflyers Of Texas Inc](https://openairdocs.org/faa-owner/AMERIFLYERS%20OF%20TEXAS%20INC) - Location: [Addison, TX](https://openairdocs.org/faa-place/TX/Addison) - Owner type: Corporation - Owner's area on the map: 32.9600° N, 96.8372° W: Placed by OpenAirDocs at the center of ZIP code 75001, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=504AF - Page: https://openairdocs.org/aircraft/N504AF From the FAA registry file of October 21, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 57 in force ### Matched by airframe (Piper PA-28-181) - [AD 2024-14-03](https://openairdocs.org/ad/2024-14-03): Autopilot System · Garmin GFC 500 Autopilot (STC SA01866WI). Effective Aug 20, 2024 - [AD 2024-10-04](https://openairdocs.org/ad/2024-10-04): Wing, Attach Fittings · Piper PA-28-181, PA-28R-201, PA-44-180 and 1 more. Effective Jun 6, 2024 - [AD 2022-03-15](https://openairdocs.org/ad/2022-03-15): Fuel Quantity Indicator · Garmin G3X Touch Electronic Flight Instrument System (STC SA01899WI). Effective Mar 21, 2022 - [AD 2020-26-16](https://openairdocs.org/ad/2020-26-16): Wing Spar · Piper PA-28-151, PA-28-161, PA-28-181 and 12 more. Effective Feb 16, 2021 - [AD 2018-07-03](https://openairdocs.org/ad/2018-07-03): Placard and Markings · Piper PA-28-140, PA-28-150, PA-28-151 and 12 more. Effective Apr 20, 2018 - [AD 2017-14-04](https://openairdocs.org/ad/2017-14-04): Engine Oil · Piper PA-28-140, PA-28-150, PA-28-151 and 22 more. Effective Aug 15, 2017 - [AD 2016-07-21](https://openairdocs.org/ad/2016-07-21): Wing Ribs/Bulkhead · Piper PA-28-161, PA-28-181 and PA-28R-201. Effective Apr 26, 2016 - [AD 2013-02-13](https://openairdocs.org/ad/2013-02-13): Stabilizer Control System · Piper PA-28-140, PA-28-150, PA-28-151 and 33 more. Effective Mar 11, 2013 - [AD 2010-15-10](https://openairdocs.org/ad/2010-15-10): Control wheel shafts · Piper PA-28-140, PA-28-150, PA-28-151 and 33 more. Effective Aug 31, 2010 - [AD 2009-05-05](https://openairdocs.org/ad/2009-05-05): Primary Flight Displays · Avidyne Primary Flight Display (S-TEC STC SA09543AC-D or 2 others). Effective Apr 3, 2009 - [AD 2006-03-08](https://openairdocs.org/ad/2006-03-08): Vacuum pumps · Aero Advantage 14-19, 14-19-2, 14-19-3 and 299 more. Effective Mar 10, 2006 - [AD 2005-25-08](https://openairdocs.org/ad/2005-25-08): Electronic Flight Information System (EFIS) · B-N Group BN-2A, 172, 180 and 22 more. Effective Jan 23, 2006 - [AD 2005-19-20](https://openairdocs.org/ad/2005-19-20): Bushing screw thread expanders · Piper PA-28-160, PA-28-161, PA-28-180 and 1 more. Effective Nov 4, 2005 - [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005 - [AD 2004-14-12](https://openairdocs.org/ad/2004-14-12): Control wheel attaching hardware · Piper PA-28-161, PA-28-181, PA-28R-201 and 8 more. Effective Aug 10, 2004 - [AD 2001-23-17](https://openairdocs.org/ad/2001-23-17): GNS 430 units · Cessna 172, 182, 206 and 209 more. Effective Dec 28, 2001 - [AD 98-21-21 R1](https://openairdocs.org/ad/98-21-21-R1): Electric Inflatable Door Seals · Cessna 17-30, 17-30A, 17-31 and 267 more. Effective May 1, 2000 - [AD 99-05-09](https://openairdocs.org/ad/99-05-09): Induction Air Filter · Piper PA-23-235, PA-23-250, PA-23-250 (Navy UO-1) and 20 more. Effective Mar 19, 1999 - [AD 96-10-03](https://openairdocs.org/ad/96-10-03): Flap Handle Attach Bolt · Piper PA-28-140, PA-28-150, PA-28-151 and 28 more. Effective Jun 14, 1996 - [AD 87-08-08 R3](https://openairdocs.org/ad/87-08-08-R3): Lower spar cap · Piper PA-28-140, PA-28-150, PA-28-151 and 28 more. Effective May 22, 1989 - [AD 86-17-01](https://openairdocs.org/ad/86-17-01): Ammeter Replacement · Piper PA-28-150, PA-28-160, PA-28-180 and 20 more. Effective Aug 21, 1986 - [AD 85-23-07](https://openairdocs.org/ad/85-23-07): Autopilot Systems · Aerostar PA-60-700P (Aerostar 700P), 172L, 172P and 37 more. Effective Jan 27, 1986 - [AD 80-14-02](https://openairdocs.org/ad/80-14-02): Throttle Cable · Piper PA-28-181, PA-32-300 and PA-32R-300. Effective Jul 10, 1980 - [AD 80-14-03](https://openairdocs.org/ad/80-14-03): Bendix, King or Narco Transmitters · Piper PA-28-161, PA-28-181, PA-28-201T and 16 more. Effective Jul 1, 1980 - [AD 79-26-05](https://openairdocs.org/ad/79-26-05): Oil and Fuel System Hoses · Piper PA-28-140, PA-28-150, PA-28-151 and 28 more. Effective Jan 3, 1980 - [AD 79-22-02](https://openairdocs.org/ad/79-22-02): Fuel Leakage · Piper PA-28-161, PA-28-181, PA-28-201T and 6 more. Effective Oct 26, 1979 - [AD 79-13-03](https://openairdocs.org/ad/79-13-03): Fire Hazard Prevention · Piper PA-28-161, PA-28-181, PA-28-201T and 5 more. Effective Jun 8, 1979 - [AD 79-07-02](https://openairdocs.org/ad/79-07-02): Batteries · Aircraft Parts & Development A, A-2, A-3 and 149 more. Effective Apr 3, 1979 - [AD 77-23-03](https://openairdocs.org/ad/77-23-03): Rod End Bearings · Piper PA-28-140, PA-28-151, PA-28-161 and 12 more. Effective Nov 14, 1977 - [AD 77-01-01](https://openairdocs.org/ad/77-01-01): Fuel Quantity Gauge · Piper PA-28-140, PA-28-150, PA-28-151 and 7 more. Effective Jan 7, 1977 ### Matched by engine (Lycoming IO-360-B4A) - [AD 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026 - [AD 2017-16-11](https://openairdocs.org/ad/2017-16-11): Reciprocating Engine Power Section · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-360-B1G6 and 93 more. Effective Aug 15, 2017 - [AD 2015-19-07](https://openairdocs.org/ad/2015-19-07): Fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 187 more. Effective Nov 3, 2015 - [AD 2012-19-01](https://openairdocs.org/ad/2012-19-01): Crankshafts · Lycoming Engines AEIO-360-A1A, AEIO-360-A1B, AEIO-360-A1B6 and 321 more. Effective Oct 24, 2012 - [AD 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012 - [AD 2009-26-12](https://openairdocs.org/ad/2009-26-12): Cylinder assemblies · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 264 more. Effective Feb 4, 2010 - [AD 2009-02-03](https://openairdocs.org/ad/2009-02-03): Fuel injection servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 261 more. Effective Feb 9, 2009 - [AD 2007-04-19 R1](https://openairdocs.org/ad/2007-04-19-R1): SAP cylinder assemblies · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 314 more. Effective May 7, 2007 - [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006 - [AD 2006-10-21](https://openairdocs.org/ad/2006-10-21): ECi connecting rods · Engine Components Reciprocating Engine Connecting Rods, AEIO-360-B1B, AEIO-360-B1D and 171 more. Effective Jun 22, 2006 - [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004 - [AD 2003-14-03](https://openairdocs.org/ad/2003-14-03): Rotary fuel pumps · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 262 more. Effective Aug 14, 2003 - [AD 98-02-08](https://openairdocs.org/ad/98-02-08): Crankshaft · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 216 more. Effective Mar 30, 1998 - [AD 97-15-11](https://openairdocs.org/ad/97-15-11): Cylinder kits · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 538 more. Effective Aug 12, 1997 - [AD 96-23-03](https://openairdocs.org/ad/96-23-03): High pressure fuel pumps · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 174 more. Effective Dec 23, 1996 - [AD 96-09-10](https://openairdocs.org/ad/96-09-10): Oil pump · Lycoming Engines AEIO-320-E1A, AEIO-320-E1B, AEIO-320-E2A and 334 more. Effective Jul 15, 1996 - [AD 95-07-01](https://openairdocs.org/ad/95-07-01): Connecting Rod Bolt · Lycoming Engines AEIO-360-A1E, AEIO-360-B1G6, AEIO-360-H1A and 177 more. Effective Apr 12, 1995 - [AD 92-12-05](https://openairdocs.org/ad/92-12-05): Piston Pins · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 532 more. Effective Jul 10, 1992 - [AD 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991 - [AD 87-10-06 R1](https://openairdocs.org/ad/87-10-06-R1): Rocker Arm Assembly · Lycoming Engines IO-360-B4, IVO-360-A1A, O-340-A1A and 243 more. Effective Sep 1, 1989 - [AD 79-04-05](https://openairdocs.org/ad/79-04-05): Regulator Diaphragm Stem Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 215 more. Effective Sep 26, 1979 - [AD 78-23-10](https://openairdocs.org/ad/78-23-10): Center Body Bellows Seal Assembly · Lycoming Engines AEIO-320-D1B, AEIO-320-E1A, AEIO-320-E1B and 218 more. Effective Nov 7, 1978 - [AD 75-08-09](https://openairdocs.org/ad/75-08-09): Oil Pump Drive Shaft · Lycoming Engines AEIO-360-A1B, AEIO-360-A1B6, AEIO-360-A1C and 365 more. Effective Aug 18, 1977 - [AD 73-23-01](https://openairdocs.org/ad/73-23-01): Piston Pin Assembly · Lycoming Engines AIO-360-A1A, AIO-360-A1B, AIO-360-A2A and 215 more. Effective Jan 13, 1977 - [AD 75-09-15](https://openairdocs.org/ad/75-09-15): Fuel Starvation To The Engine · Lycoming Engines AIO-320-A1A, AIO-320-A1B, AIO-320-A2A and 130 more. Effective Apr 30, 1975 - [AD 73-10-02](https://openairdocs.org/ad/73-10-02): Bendix Fuel Injectors · Bendix Fuel Injectors, AIO-320-A1A, AIO-320-A1B and 88 more. Effective May 16, 1973 - [AD 67-01-04](https://openairdocs.org/ad/67-01-04): Oil Filters · Full flow oil filter (Superior Flow STC SA401SW or 2 others). Effective Jan 2, 1967 ### Historical (superseded or no longer in force) - [AD 2018-02-05](https://openairdocs.org/ad/2018-02-05) (historical): Placard and Markings · Piper PA-28-140, PA-28-150, PA-28-151 and 12 more. Effective Feb 7, 2018 - [AD 2015-20-13](https://openairdocs.org/ad/2015-20-13) (historical): Wing Ribs/Bulkhead · Piper PA-28-161, PA-28-181 and PA-28R-201. Effective Oct 29, 2015 - [AD 2008-06-28 R1](https://openairdocs.org/ad/2008-06-28-R1) (historical): Primary Flight Displays (PFDs) · Avidyne Primary Flight Displays, 441, LC41-550FG and 22 more. Effective Apr 10, 2008 - [AD 2008-06-28](https://openairdocs.org/ad/2008-06-28) (historical): Primary flight display · Avidyne Primary Flight Display (S-TEC STC SA09543AC-D or 2 others). Effective Apr 10, 2008 - [AD 95-26-13](https://openairdocs.org/ad/95-26-13) (historical): Inspect Oil Cooler Hoses · Piper PA-28-140, PA-28-150, PA-28-151 and 22 more. Effective Feb 5, 1996 - [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024 - [AD 2011-26-04](https://openairdocs.org/ad/2011-26-04) (historical): Externally mounted fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 186 more. Effective Jan 25, 2012 - [AD 2011-15-10](https://openairdocs.org/ad/2011-15-10) (historical): Fuel servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 256 more. Effective Aug 16, 2011 - [AD 2008-19-05](https://openairdocs.org/ad/2008-19-05) (historical): Parallel Valve'' reciprocating engines · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 262 more. Effective Oct 20, 2008 - [AD 2008-14-07](https://openairdocs.org/ad/2008-14-07) (historical): Externally mounted fuel injector fuel lines · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 185 more. Effective Aug 14, 2008 - [AD 2008-08-14](https://openairdocs.org/ad/2008-08-14) (historical): Fuel injection servo plugs · Superior Air Parts AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 242 more. Effective Apr 29, 2008 - [AD 2008-06-51](https://openairdocs.org/ad/2008-06-51) (historical): Fuel injection servo plugs · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 235 more - [AD 2005-26-10](https://openairdocs.org/ad/2005-26-10) (historical): ECi cylinder assemblies. · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 413 more. Effective Jan 31, 2006 - [AD 2002-26-01](https://openairdocs.org/ad/2002-26-01) (historical): Fuel injector fuel lines · Textron Lycoming, AVCO IGO-480-A1B6, IGO-540-B1A, IGO-540-B1C and 178 more. Effective Jan 31, 2003 - [AD 98-18-12](https://openairdocs.org/ad/98-18-12) (historical): Fuel Pump · Textron Lycoming, AVCO AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 249 more. Effective Sep 28, 1998 - [AD 81-18-04 R2](https://openairdocs.org/ad/81-18-04-R2) (historical): Engine Oil Pump Driven Impeller and Shaft · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 376 more. Effective Jun 7, 1982 ## Information bulletins (advisory) (23 in force) - [SAIB 2022-20](https://openairdocs.org/saib/2022-20): Wing Spar. Issued Oct 19, 2022 - [SAIB AIR-21-10](https://openairdocs.org/saib/AIR-21-10): Wing, Attach Fittings (JASC 5740). Issued Jun 29, 2021 - [SAIB AIR-21-07](https://openairdocs.org/saib/AIR-21-07): WING SPAR, Verification of Correct Washers used with Wing Spar Attach Bolts. Issued Mar 30, 2021 - [SAIB SW-18-31](https://openairdocs.org/saib/SW-18-31): NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM. Issued Nov 21, 2018 - [SAIB CE-11-12R1](https://openairdocs.org/saib/CE-11-12R1): Wings - PA-28, PA-32, PA-34, and PA-44 Rear Spar Corrosion at Fuselage Attach Fitting. Issued Dec 2, 2015 - [SAIB CE-14-23](https://openairdocs.org/saib/CE-14-23): Powerplant; Air Intake. Issued Aug 6, 2014 - [SAIB CE-11-42](https://openairdocs.org/saib/CE-11-42): Flight Controls: Control Cable/Pulley Inspections. Issued Jun 29, 2011 - [SAIB CE-11-14](https://openairdocs.org/saib/CE-11-14): Stabilizers- Vertical Stabilizer on Piper PA-28, PA-32, PA-34 Forward Attach Point Corrosion. Issued Jan 5, 2011 - [SAIB CE-11-13](https://openairdocs.org/saib/CE-11-13): Wings - Piper PA-28, PA-32, PA-34 Forward Spar Corrosion. Issued Jan 5, 2011 - [SAIB CE-11-11](https://openairdocs.org/saib/CE-11-11): Wings - Piper PA-28, PA-32, and PA-34 Aileron Hinge Fitting Corrosion. Issued Jan 5, 2011 - [SAIB CE-11-10](https://openairdocs.org/saib/CE-11-10): Piper PA-28, PA-32, PA-34, and PA-44 Corrosion on Flap Hinges, Brackets, and Ribs. Issued Jan 5, 2011 - [SAIB CE-11-01](https://openairdocs.org/saib/CE-11-01): Stabilizers -Horizontal Stabilator Turnbuckle. Issued Oct 4, 2010 - [SAIB CE-09-23](https://openairdocs.org/saib/CE-09-23): Fuel: Piper PA-28, PA-32, PA-34. Issued Apr 7, 2009 - [SAIB CE-09-17](https://openairdocs.org/saib/CE-09-17): Fuel: Piper PA-28 Series Aircraft Fuel Vent and Supply Hose Condition. Issued Mar 10, 2009 - [SAIB CE-08-13](https://openairdocs.org/saib/CE-08-13): Electrical Power. Issued Feb 27, 2008 - [SAIB CE-07-08](https://openairdocs.org/saib/CE-07-08): Avidyne Primary Flight display (PFD). Issued Oct 31, 2006 - [SAIB CE-01-30](https://openairdocs.org/saib/CE-01-30): . Issued Jul 11, 2001 - [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019 - [SAIB NE-08-32R1](https://openairdocs.org/saib/NE-08-32R1): Propeller Governor Idler Gear Shaft Set Screw. Issued May 13, 2016 - [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014 - [SAIB NE-13-06](https://openairdocs.org/saib/NE-13-06): Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320, 360, and 540 Series Engines. Issued Nov 21, 2012 - [SAIB NE-09-04](https://openairdocs.org/saib/NE-09-04): Fuel Control/Reciprocating Engines. Issued Jan 10, 2009 - [SAIB NE-06-32R1](https://openairdocs.org/saib/NE-06-32R1): Reciprocating Engine - Crankshaft. Issued Sep 10, 2008 - [SAIB CE-11-12](https://openairdocs.org/saib/CE-11-12) (historical): PA-28, PA-32, PA-34, and PA-44 Rear Spar Corrosion at Fuselage Attach Fitting. Issued Jan 5, 2011 - [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008 ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB CEN25LA077](https://openairdocs.org/ntsb/CEN25LA077), Jan 15, 2025: Piper PA-28-181 (N504AF), Addison, TX, substantial damage. Probable cause: A partial loss of engine power during takeoff due to the partial blockage of the fuel diaphragm metering stem and the No. 1 cylinder fuel injector nozzle. Contributing to the accident was maintenance… ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20250114012979A](https://openairdocs.org/incident/20250114012979A), Jan 14, 2025: Piper Aircraft Inc PA-28-181 (N504AF), Addison Airport, TX, Substantial damage. The pilot expressed he performed all the ground takeoff checks and everything was perfect. All the instruments were in the green before departure. He then… ## Service difficulty reports None filed for this aircraft. ## Related - Other Piper PA-28-181 aircraft: https://openairdocs.org/model/piper-pa-28-181/aircraft.md - STCs for the Piper PA-28-181: https://openairdocs.org/model/piper-pa-28-181/stcs.md - The Lycoming IO-360-B4A engine: https://openairdocs.org/engine/lycoming-io-360-b4a.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.