Airworthiness Directive Lookup Free FAA AD search by N-number, make or model
Find the FAA airworthiness directives that may apply to an aircraft: 12,857 ADs from the Federal Register since 1995, through Oct 1, 2026, each with its applicability text and the official document. Free, no account.
N721CN is a Gulfstream II (certified family) in the FAA registry (aircraft page). Matched on type certificate model G-1159.
RESULTS
8 ADs in effect may apply to N721CN
- In effect8
- Recurring2
- Superseded or removed0
Informational only. These are FAA airworthiness directives whose published applicability names this make and model. Whether an AD applies to a particular aircraft depends on its serial number, installed engines, propellers, parts and modifications, and some ADs listed here will not apply. This list is not the official AD record and not a compliance determination: confirm applicability and compliance against the FAA’s Dynamic Regulatory System and the aircraft’s records with a certificated mechanic or inspector. Covers ADs published in the Federal Register since 1995, through Oct 1, 2026; older ADs, and engine, propeller and appliance ADs that do not name the aircraft, are not included.
- AD 2016-20-06 One-time
Gulfstream Aerospace Corporation Airplanes
This AD was prompted by the need to establish life limits for elevator assemblies and skins.
Applicability, as the AD words it
This AD applies to all Gulfstream Aerospace Corporation Model G- 1159, G-1159A, G-1159B, and G-IV airplanes, certificated in any category.
- AD 2016-18-11 One-time
Gulfstream Aerospace Corporation Airplanes
This AD was prompted by a report that the right main landing gear (MLG) failed to extend due to fatigue cracking of the end cap fitting.
Applicability, as the AD words it
This AD applies to the Gulfstream Aerospace Corporation airplanes, certificated in any category, identified in paragraphs (c)(1) through (c)(7) of this AD. (1) All Model G-1159 airplanes. (2) All Model G-1159A airplanes. (3) All Model G-1159B airplanes. (4) All Model G-IV airplanes. (5) All Model GV airplanes. (6) Model GIV-X airplanes, serial numbers 4001 through 4350 inclusive. (7) Model GV-SP airplanes, serial numbers 5001 through 5542 inclusive.
- AD 2012-11-06 One-time
Gulfstream Aerospace Corporation Airplanes
This AD was prompted by a report of an improper structural modification that had excessive gaps in the wing-to-fuselage attachment fittings.
Applicability, as the AD words it
This AD applies to all Gulfstream Aerospace Corporation Model G- 1159, G-1159A, and G-1159B airplanes; certificated in any category.
- AD 2006-18-08 One-time
Goodyear Aviation Tires, Part Number 217K22-1, Installed on Various Transport Category Airplanes, Including But Not Limited to Bombardier Model BD-700-1A10 and BD-700-1A11 Airplanes; and Gulfstream Model G-1159, G-1159A, G-1159B, G-IV, GIV-X, GV, and GV-SP Series Airplanes
We are issuing this AD to prevent tread separation from a nosewheel tire during takeoff or landing, which could result in compromised nosewheel steering or ingestion of separated tread by an engine, and consequent reduced controllability of the airplane on the runway or in the air.
Applicability, as the AD words it
This AD applies to Goodyear aviation tires, part number 217K22-1, identified in Goodyear Aviation Service Bulletin SB-2005- 32-004, Revision 5, dated December 22, 2005; installed on various transport category airplanes, certificated in any category, including but not limited to Bombardier Model BD-700-1A10 and BD- 700-1A11 airplanes, and Gulfstream Model G-1159, G-1159A, G-1159B, G-IV, G-IV-X, G-V, and G-V-SP series airplanes.
- AD 2004-21-03 Recurring
Gulfstream Model G-1159, G-1159A, G-1159B, and G-IV Series Airplanes
The FAA is issuing this AD to detect and correct broken damper shafts, which could result in locking of an aileron or elevator actuator (hard- over condition), subsequent loss of aileron or elevator control, and consequent reduced controllability of the airplane.
Applicability, as the AD words it
This AD applies to all Gulfstream Model G-1159, G-1159A, G- 1159B, and G-IV series airplanes; certificated in any category.
- AD 2001-08-13 One-time
Gulfstream Model G-1159, G-1159A, G-1159B, G-IV, and G-V Series Airplanes
Applicability, as the AD words it
Model G-1159, G-1159A, G-1159B, G-IV, and G-V series airplanes, as specified in the Gulfstream Alert Customer Bulletins listed in the following table; certificated in any category: Table--Gulfstream Airplane Models and Alert Customer Bulletin's (ACB) Model ACB No. Dated G-1159 and G-1159A (G-II/IIB) 27 March 20, 2001. series airplanes. G-1159B (G-III) series airplanes. 13 March 20, 2001. G-IV series airplanes: 27 March 20, 2001. G-V series airplanes: 12 March 20, 2001.
- AD 97-05-03 One-time Appliance
AlliedSignal Avionics, Inc. Models GNS- Xls and GNS-Xl Flight Management Systems
To prevent deviation from an intended flight path during a non- precision approach to an airport caused by inaccurate information from the GPS flight management system.
Applicability, as the AD words it
Models GNS-Xls and GNS-Xl global positioning systems (GPS), part numbers (P/N) 17960-0102-XXXX and P/N 18355- 0101-XXXX, respectively, installed on, but not limited to the following aircraft, certificated in any category: Manufacturer Models British Aerospace, Ltd. (BAe): 146-100A and 146-200A Cessna Aircraft Corporation: 525, 550, and 560 Dausault Aviation: Mystere-Falcon 20 and 50 Avions Marcel Dassault: Falcon 10 Gulfstream Aerospace: G-1159 (G-II) and G-1159A (G- III) Raytheon Corporate Jets: Hawker 800 Israel Aircraft Industries, Ltd: 1124 Sabreliner Corporation: NA-65 Learjet Inc: 35 Jetstream Aircraft Ltd: 4101
- AD 95-22-01 Recurring Appliance
Aerospace Lighting Corporation Power Units and Power Supplies
To prevent smoke, fire, electrical shock, and possible electromagnetic interference caused by high voltage arcing in the cabin which, if undetected, could result in personal hazard or loss of the aircraft.
Applicability, as the AD words it
Aerospace Lighting Corporation (ALC) lamp connectors, Part Number (P/N) 31.85.1.A; Series 66 fluorescent lamps; power units, P/N's TR-991, TR-992, AL-0546, and AL-0514; and power supplies, P/N's 1895D and AL-0598. These products are utilized in cabin fluorescent lighting systems, and are installed on, but not limited to, the following aircraft: Airbus Industrie Model A310; Avion Marcel Dassault Breguet Aviation Model Falcon 10; Boeing Airplane Company Models 727, 737, 747, and 757; Raytheon Corporate Jets, Inc. (formerly British Aerospace) Model HS. 125-600A, -700A, - 800A, and -1000A; Bombardier Inc. Canadair Ltd. Models CL-600-1A11, CL-600-2A12, CL-600-2B16, CL-600-2B19, CL-601, CL-601-3A, CL-601-3R; Cessna Aircraft Company Models 550 and 560; Dassault Aviation Models Mystere-Falcon 20 and 50; Empresa Brasileira de Aeronauctica S/A Model Embraer EMB-120; Gulfstream Aerospace Corporation Models G- 159, G-1159, G-1159A, and G-IV; Israel Aircraft Industrie, Ltd. Models 1124 and 1125; Jetstream Aircraft, Ltd. Jetstream Model 310; Learjet Corporation Models Learjet 35 and 36; Saab Aircraft AB Model Saab 340A; and Sikorsky Aircraft Division Model S-76A. Note: This airworthiness directive (AD) applies to each product identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For products that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must use the authority provided in paragraph (e) to request approval from the Federal Aviation Administration (FAA). This approval may address either no action, if the current configuration eliminates the unsafe condition, or different actions necessary to address the unsafe condition described in this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condition addressed by this AD. In no case does the presence of any modification, alteration, or repair remove any product from the applicability of this AD.
Radar reads the logbooks and ties each AD to the entries that show how and when it was complied with, with recurring ADs due by date and hours.
QUESTIONS
AD lookup questions
Sources: FAA final rules under 14 CFR part 39, from the Federal Register; make and model from the FAA aircraft registry. The FAA’s Dynamic Regulatory System holds the official AD list.
What is an airworthiness directive (AD)?
An airworthiness directive is a legally enforceable rule the FAA issues under 14 CFR part 39 when it finds an unsafe condition in an aircraft, engine, propeller or appliance that is likely to exist in others of the same design. It says which products it applies to and what must be done, and by when: an inspection, a part replacement, a modification or a limitation. No one may operate a product to which an AD applies except in accordance with it.
How do I look up the ADs for my aircraft?
Type the N-number, or the make and model, into the box above. Radar finds the aircraft's make and model in the FAA registry and lists every AD published in the Federal Register whose applicability names it, newest first, with the AD's own applicability text and a link to the official document. The FAA's Dynamic Regulatory System (drs.faa.gov) holds the official list.
Does every AD in the results apply to my aircraft?
Not necessarily. An AD can be limited to serial number ranges, to aircraft with certain parts or modifications installed, or to a configuration. The results are ADs that may apply because they name the make and model. A certificated mechanic or inspector determines applicability against the aircraft's serial number and records, and records how each applicable AD was complied with.
What is the difference between a recurring and a one-time AD?
A one-time AD is complied with once, for example by replacing a part. A recurring (repetitive) AD requires an action again at an interval, such as an inspection every 100 hours or every 12 months, until a terminating action ends it. Radar marks an AD Recurring when its text requires repetitive actions; always read the AD for the intervals.
What does superseded mean?
When the FAA replaces an AD with a new one, the old AD is superseded: its requirements are carried into, or replaced by, the new AD. Results show the ADs in effect by default; superseded and removed ADs can be shown for the history.
Where does this data come from?
The Federal Register, where the FAA publishes every AD as a final rule. Radar reads each one from the Federal Register API (12,857 ADs since 1995) and refreshes the list every weekday. Make and model come from the FAA aircraft registry. ADs issued before 1995 are not in the Federal Register's online edition and are not included.
Are engine and propeller ADs included?
Only when their applicability names the aircraft. Most engine and propeller ADs name the engine or propeller model, so check those by the installed engine and propeller models. Appliance ADs that list the aircraft among those the appliance can be installed on are included and marked Appliance.
Know which ADs apply, and where each one was signed off.
Radar reads every logbook page, typed or handwritten, and builds one searchable record per tail: times, inspections, ADs and components, each tied to the page it came from.