N56LW

01 /  Registration

Filed with the Federal Aviation Administration

Every cell below is a literal field from the FAA Aircraft Registry. Click any value to open the FAA registry record for N56LW.

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to CESSNA 501

Federal Aviation Administration airworthiness directives matched to make and model. Each entry links to the Federal Register publication.

• Aug 25, 2015

  Airworthiness Directives; Cessna Aircraft Company Airplanes

  We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551, S550, 560, and 650 airplanes. This AD was prompted by reports of smoke and/or fire in the tailcone caused by sparking due to excessive wear of the brushes in the air conditioning (A/C) motor. This AD requires inspections to determine if certain A…

  Federal Register →

• Jan 23, 2015

  Airworthiness Directives; Cessna Aircraft Company Airplanes

  We propose to adopt a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551, S550, 560, and 650 airplanes. This proposed AD was prompted by reports of smoke and/or fire in the tailcone caused by sparking due to excessive wear of the brushes in the air conditioning (A/C) motor. This proposed AD would require inspection…

  Federal Register →

• Jun 21, 2013

  Airworthiness Directives; Cessna Aircraft Company Airplanes

  We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) (previously COLUMBIA or LANCAIR) Models LC40-550FG, LC41-550FG, and LC42-550FG airplanes. This AD was prompted by reports that during maximum braking, if the brakes lock up and a skid occurs, a severe oscillatory yawing motion or "wheel walk" may develop, which c…

  Federal Register →

• May 30, 2013

  Airworthiness Directives; Cessna Aircraft Company Airplanes

  We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551, S550, 560, 560XL, and 650 airplanes. This AD was prompted by multiple reports of smoke and/or fire in the tailcone caused by sparking due to excessive wear of the brushes in the air conditioning (A/C) motor. This AD requires inspecting to determi…

  Federal Register →

• Feb 11, 2013

  Airworthiness Directives; Cessna Aircraft Company Airplanes

  We are revising an earlier proposed airworthiness directive (AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551, S550, 560, 560XL, and 650 airplanes. That NPRM proposed to require an inspection to determine if certain air conditioning (A/C) compressor motors are installed and to determine the accumulated hours on certain A/C drive motor assemb…

  Federal Register →

• Sep 26, 2012

  Airworthiness Directives; Cessna Aircraft Company Airplanes

  We propose to adopt a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551, S550, 560, 560XL, and 650 airplanes. This proposed AD was prompted by multiple reports of smoke and/or fire in the tailcone caused by sparking due to excessive wear of the brushes in the air conditioning (A/C) motor. This proposed AD would re…

  Federal Register →

• Aug 22, 2008

  Airworthiness Directives; Pratt & Whitney Canada (P&WC) JT15D-5; -5B; -5F; and -5R Turbofan Engines

  We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed 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 describes the unsafe condition as follows:

  Federal Register →

• Jun 13, 2008

  Airworthiness Directives; Sandel Avionics Incorporated Model ST3400 Terrain Awareness Warning System/Radio Magnetic Indicator (TAWS/RMI) Units Approved Under Technical Standard Order(s) C113, C151a, or C151b; Installed on Various Small and Transport Category Airplanes

  The FAA is revising an existing airworthiness directive (AD) that applies to Sandel Avionics Incorporated Model ST3400 TAWS/RMI units as described above. The existing AD currently requires installing a warning placard on the TAWS/RMI and revising the Limitations section of the airplane flight manual (AFM). The existing AD also requires installing upgraded s…

  Federal Register →

• Mar 13, 2008

  Airworthiness Directives; Sandel Avionics Incorporated Model ST3400 Terrain Awareness Warning System/Radio Magnetic Indicator (TAWS/RMI) Units Approved Under Technical Standard Order(s) C113, C151a, or C151b; Installed on Various Small and Transport Category Airplanes

  The FAA proposes to revise an existing airworthiness directive (AD) that applies to Sandel Avionics Incorporated Model ST3400 TAWS/RMI units as described above. The existing AD currently requires installing a warning placard on the TAWS/RMI and revising the Limitations section of the airplane flight manual (AFM). The existing AD also requires installing upg…

  Federal Register →

• Jun 1, 2007

  Airworthiness Directives; Cessna Model 500, 501, 550, 551, S550, 560, 560XL, and 750 Airplanes

  The FAA is superseding an existing airworthiness directive (AD), which applies to certain Cessna Model 500, 550, S550, 560, 560XL, and 750 airplanes. That AD currently requires installing identification sleeves on the wires for the positive and negative terminal studs of the engine and/or auxiliary power unit (APU) fire extinguishing bottles, as applicable,…

  Federal Register →

• Mar 7, 2007

  Airworthiness Directives; Cessna Aircraft Company Models 172R, 172S, 182S, 182T, T182T, 206H, and T206H Airplanes

  The FAA adopts a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 172R, 172S, 182S, 182T, T182T, 206H, and T206H airplanes. This AD requires you to install Modification Kit MK172-25-10C or a steel lock rod/bar on both crew seat back cylinder lock assemblies. If a steel lock rod/bar has already been installed on the crew s…

  Federal Register →

• Feb 15, 2007

  Airworthiness Directives; Cessna Model 500, 501, 550, 551, S550, 560, 560XL, and 750 Airplanes

  The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Cessna Model 500, 550, S550, 560, 560XL, and 750 airplanes. The existing AD currently requires installing identification sleeves on the wires for the positive and negative terminal studs of the engine and/or auxiliary power unit (APU) fire extinguishing bottles, a…

  Federal Register →

• Aug 21, 2006

  Airworthiness Directives; Sandel Avionics Incorporated Model ST3400 Terrain Awareness Warning System/Radio Magnetic Indicator (TAWS/RMI) Units Approved Under Technical Standard Order(s) C113, C151a, or C151b; Installed on Various Small and Transport Category Airplanes

  The FAA is adopting a new airworthiness directive (AD). The new AD is for Sandel Avionics Incorporated Model ST3400 TAWS/RMI units as described above. This AD requires installing a warning placard on the TAWS/RMI and revising the Limitations section of the airplane flight manual (AFM). This AD also requires installing upgraded software in the TAWS/RMI. This…

  Federal Register →

• Aug 9, 2006

  Airworthiness Directives; Cessna Aircraft Company Models 172R, 172S, 182S, 182T, T182T, 206H, and T206H Airplanes

  We propose to adopt a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 172R, 172S, 182S, 182T, T182T, 206H, and T206H airplanes. This proposed AD would require you to install Modification Kit MN172-25-10B or a steel lock rod/bar on both crew seat back cylinder lock assemblies. If a steel lock rod/bar has already been inst…

  Federal Register →

• Mar 16, 2006

  Airworthiness Directives; Cessna Model 500, 501, 550, S550, 551, and 560 Airplanes

  The FAA is adopting a new airworthiness directive (AD) for certain Cessna Model 500, 501, 550, S550, 551, and 560 airplanes. This AD requires revising the airplane flight manual (AFM) to prohibit use of the wing fuel boost pumps for defueling under certain conditions; installing a placard; doing other specified investigative and corrective actions as necess…

  Federal Register →

• Mar 8, 2006

  Airworthiness Directives; Sandel Avionics Incorporated Model ST3400 Terrain Awareness Warning System/Radio Magnetic Indicator Approved Under Technical Standard Order(s) C113, C151a, or C151b; Installed on Various Small and Transport Category Airplanes

  The FAA proposes to adopt a new airworthiness directive (AD). The new AD is for Sandel Avionics Incorporated Model ST3400 terrain awareness warning systems/radio magnetic indicator (TAWS/RMI) units as described above. This proposed AD would require installing a warning placard on the TAWS/RMI, installing upgraded software in the TAWS/RMI, revising the limit…

  Federal Register →

• Oct 25, 2005

  Airworthiness Directives; Cessna Model 500, 501, 550, S550, 551, and 560 Airplanes

  The FAA is revising an earlier proposed airworthiness directive (AD) for certain Cessna Model 500, 501, 550, S550, 551, and 560 airplanes. The original NPRM would have required revising the airplane flight manual (AFM) to prohibit use of the wing fuel boost pumps for defueling under certain conditions; installing a placard; doing other specified investigati…

  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 repetitive visual inspections and torque check…

  Federal Register →

• Apr 18, 2005

  Airworthiness Directives; Cessna Model 500, 501, 550, S550, 551, and 560 Airplanes

  The FAA proposes to adopt a new airworthiness directive (AD) for certain Cessna Model 500, 501, 550, S550, 551, and 560 airplanes. This proposed AD would require revising the airplane flight manual (AFM) to prohibit use of the wing fuel boost pumps for defueling under certain conditions; installing a placard; doing other specified investigative and correcti…

  Federal Register →

• Jun 15, 2004

  Airworthiness Directives; Cessna Model 500, 501, 550, and 551 Airplanes

  This document corrects information in an existing airworthiness directive (AD) that applies to certain Cessna Model 500, 501, 550, and 551 airplanes. That AD currently requires a one-time inspection of the brake stator disks to determine to what change level they have been modified (if any), and related investigative and corrective actions if necessary. Tha…

  Federal Register →

• Apr 28, 2004

  Airworthiness Directives; Cessna Model 500, 501, 550, and 551 Airplanes

  This amendment adopts a new airworthiness directive (AD); applicable to certain Cessna Model 500, 501, 550, and 551 airplanes; that requires a one-time inspection of the brake stator disks to determine to what change level they have been modified (if any), and related investigative and corrective actions if necessary. This AD also requires that the existing…

  Federal Register →

• Apr 21, 2004

  Airworthiness Directives; Goodrich Avionics Systems, Inc. TAWS8000 Terrain Awareness Warning System

  The FAA supersedes Airworthiness Directive (AD) 2003-13-08, which currently applies to all Goodrich Avionics Systems, Inc. (Goodrich) TAWS8000 terrain awareness warning systems (TAWS) that are installed on airplanes. AD 2003-13-08 currently requires you to inspect the TAWS installation and remove any TAWS where both the TAWS and any other device are connect…

  Federal Register →

• Mar 1, 2004

  Airworthiness Directives; Pratt & Whitney Canada JT15D-1, -1A, and -1B Turbofan Engines

  The FAA is adopting a new airworthiness directive (AD) for Pratt & Whitney Canada (PWC) JT15D-1, -1A, and -1B turbofan engines with certain impellers part number (P/N) 3020365. This AD requires a one-time borescope inspection of the rear face of certain impellers for evidence of a machined groove or step, and repair or replacement of the impeller if a groov…

  Federal Register →

• Dec 3, 2003

  Airworthiness Directives; Goodrich Avionics Systems, Inc. TAWS8000 Terrain Awareness Warning System

  The FAA proposes to supersede airworthiness directive (AD) 2003-13-08, which currently applies to all Goodrich Avionics Systems, Inc. (Goodrich) TAWS8000 terrain awareness warning systems (TAWS) that are installed on airplanes. AD 2003-13-08 currently requires you to inspect the TAWS installation and remove any TAWS where both the TAWS and any other device…

  Federal Register →

• Nov 13, 2003

  Airworthiness Directives; Pratt & Whitney Canada JT15D-1, -1A, and -1B Turbofan Engines

  The FAA proposes to adopt a new airworthiness directive (AD) for Pratt & Whitney Canada (PWC) JT15D-1, -1A, and -1B turbofan engines with certain impellers part number (P/N) 3020365. This proposed AD would require a one-time borescope inspection of the rear face of certain impellers for evidence of a machined groove or step, and repair or replacement of the…

  Federal Register →

• Nov 12, 2003

  Airworthiness Directives; Cessna Model 500, 501, 550, and 551 Airplanes

  This document revises an earlier proposed airworthiness directive (AD); applicable to certain Cessna Model 500, 501, 550, and 551 airplanes; that would have required inspection of the piston housing for an "SB" impression stamp; a one-time inspection of the brake assembly to detect cracked or broken brake stator disks; and replacement of the brake assembly…

  Federal Register →

• Jun 30, 2003

  Airworthiness Directives; Goodrich Avionics Systems, Inc. TAWS8000 Terrain Awareness Warning System

  This amendment adopts a new airworthiness directive (AD) that applies to all Goodrich Avionics Systems, Inc. (Goodrich) TAWS8000 terrain awareness warning systems (TAWS) that are installed on airplanes. This AD requires you to inspect the TAWS installation and remove any TAWS where both the TAWS and any other device are connected to the same baro set potent…

  Federal Register →

• Dec 3, 2001

  Airworthiness Directives; GARMIN International GNS 430 Units

  This amendment adopts a new airworthiness directive (AD) that applies to certain GARMIN International (GARMIN) GNS 430 units that are installed on aircraft. This AD requires you to modify the unit to incorporate circuitry changes to the GNS 430 unit's deviation and flag outputs. This AD is the result of reports of inaccurate course deviations caused by exte…

  Federal Register →

• Sep 7, 2000

  Airworthiness Directives; Cessna Model 500 Series Airplanes

  This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Cessna Model 500 series airplanes. This proposal would require inspection of the piston housing for an "SB" impression stamp; a one-time inspection of the brake assembly to detect cracked or broken brake stator disks; and replacement of the brake assembly…

  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 AD is the result of reports of in-fligh…

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• Nov 22, 1999

  Airworthiness Directives; Short Brothers SD3-30, SD3-60, SD3- SHERPA, and SD3-60 SHERPA Series Airplanes.

  This amendment adopts a new airworthiness directive (AD), applicable to certain Short Brothers SD3-30, SD3-60, SD3-SHERPA, and SD3-60 SHERPA series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and…

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• Nov 22, 1999

  Airworthiness Directives; Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 Series Airplanes and Model F27 Mark 050 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Fokker Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 series airplanes and Model F27 Mark 050 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompte…

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• Nov 22, 1999

  Airworthiness Directives; Bombardier Model DHC-7 and DHC-8 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Bombardier Model DHC-7 and DHC-8 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred in…

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• Nov 22, 1999

  Airworthiness Directives; Lockheed Model 1329-23 and 1329-25 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Lockheed Model 1329-23 and 1329-25 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred…

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• Nov 22, 1999

  Airworthiness Directives; Dornier Model Dornier 328-100 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Dornier Model Dornier 328-100 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred in ic…

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• Nov 22, 1999

  Airworthiness Directives; CASA C-212 and CN-235 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain CASA C-212 and CN-235 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred in icing cond…

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• Nov 22, 1999

  Airworthiness Directives; Saab Model SAAB SF340A, SAAB 340B, and SAAB 2000 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Saab SAAB SF340A, SAAB 340B, and SAAB 2000 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that o…

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• Nov 22, 1999

  Airworthiness Directives; British Aerospace Model HS 748 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain British Aerospace Model HS 748 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred in i…

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• Nov 22, 1999

  Airworthiness Directives; Jetstream Model BAe ATP Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Jetstream Model BAe ATP series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred in icing co…

  Federal Register →

• Nov 22, 1999

  Airworthiness Directives; Aerospatiale Model ATR-42 and ATR-72 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Aerospatiale Model ATR-42 and ATR-72 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurre…

  Federal Register →

• Nov 22, 1999

  Airworthiness Directives; Fairchild Model F-27 and FH-227 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Fairchild Model F-27 and FH-227 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred in…

  Federal Register →

• Nov 22, 1999

  Airworthiness Directives; Lockheed Model L-14 and L-18 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Lockheed Model L-14 and L-18 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred in ici…

  Federal Register →

• Nov 22, 1999

  Airworthiness Directives; Gulfstream American (Frakes Aviation) Model G-73 (Mallard) and G-73T Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Gulfstream American (Frakes Aviation) Model G-73 (Mallard) and G-73T series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incide…

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• Nov 22, 1999

  Airworthiness Directives; Mitsubishi Model YS-11 and YS-11A Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Mitsubishi Model YS-11 and YS-11A series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and an accident that occurred i…

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• Nov 22, 1999

  Airworthiness Directives; Sabreliner Model NA-265-40, NA-265-60, NA-70, and, NA-265-80 Series Airplanes

  This amendment adopts a new airworthiness directive (AD), applicable to certain Sabreliner Model NA-265-40, NA-265-60, NA-70, and NA-265-80 series airplanes, that requires revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This amendment is prompted by reports of inflight incidents and a…

  Federal Register →

• Nov 18, 1999

  Airworthiness Directives; Cessna Model 500, 501, 550, 551, and 560 Series Airplanes

  This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to certain Cessna Model 500, 501, 550, 551, and 560 series airplanes. That action would have required revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. Since the iss…

  Federal Register →

• Jul 16, 1999

  Airworthiness Directives; Cessna Models 500, 501, 550, 551, and 560 Airplanes

  This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Cessna Models 500, 501, 550, 551, and 560 airplanes. This proposal would require revising the Airplane Flight Manual (AFM) to include requirements for activation of the airframe pneumatic deicing boots. This proposal is prompted by reports of inflight inc…

  Federal Register →

04 /  Service Difficulty Reports

FAA SDR filings

The FAA does not currently expose a public API for Service Difficulty Reports. We do not back-fill or paraphrase. Search the FAA SDR portal directly →

05 /  Sources & Methodology

Every fact on this page links to its primary US-government source

• FAA Aircraft Registry →

  Refreshed May 5, 2026

  Available

• NTSB CAROL →

  Refreshed May 5, 2026

  Available

• Federal Register (FAA Airworthiness Directives) →

  Refreshed May 5, 2026

  Available

• FAA Service Difficulty Reports →

  Refreshed May 5, 2026

  Unavailable

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