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.
N404TC is a 2017 Pilatus PC-12 NG in the FAA registry (aircraft page). Matched on type certificate model PC-12/47E.
RESULTS
23 ADs in effect may apply to N404TC
- In effect23
- Recurring3
- Superseded or removed9
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.
Also show 9 superseded or removed N404TC’s registration record
- AD 2026-15-12 One-time
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by a report that the emergency exit door could not be opened from inside an airplane.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12/47E airplanes, manufacturer serial numbers 2001 through 2999, certificated in any category.
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Pilatus Aircraft Ltd. Airplanes
This AD was prompted by a report that during an engine start on the ground, the airplane battery voltage dropped to a value that resulted in an avionic system shutdown.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd Model PC-12/47E airplanes, manufacturer serial numbers 1720 and 2001 through 2999, certificated in any category.
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Pilatus Aircraft Ltd. Airplanes
This AD was prompted by a report of the stall warning protection system (SWPS) engaging when not appropriate.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12/47E airplanes, manufacturer serial numbers 1720 and 2001 through 2476, certificated in any category.
- AD 2024-08-07 Recurring
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by a revision to the airworthiness limitations section (ALS) of the existing aircraft maintenance manual (AMM) introducing new and more restrictive instructions and maintenance tasks as specified in the component limitations section, which include repetitive eddy current inspections for cracks in the main landing gear yoke fitting.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12, PC-12/45, PC-12/47, and PC-12/47E airplanes, all serial numbers, certificated in any category.
- AD 2023-09-12 One-time
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12, PC-12/45, PC-12/47, and PC-12/47E airplanes, serial numbers 466, 467, 725, 861, 1032, 1052, 1082, 1115, 1232, 1411, 1428, 1439, 1530, 1541, 1663, 1725, and 1802, certificated in any category.
- AD 2023-07-08 One-time
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12/47E airplanes, serial number (S/N) 1300 and S/Ns 1451 and higher, certificated in any category.
- AD 2022-10-01 One-time
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12/47E airplanes, serial numbers 2001 and larger, certificated in any category.
- AD 2022-07-04 One-time
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12/47E airplanes, serial number (S/N) 1720 and S/N 2001 and larger, certificated in any category.
- AD 2021-24-01 Recurring
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by a report of the strake attachment brackets and surrounding structure failing at the upper most bracket bolt hole.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. (Pilatus) Model PC-12/ 45, PC-12/47, and PC-12/47E airplanes, all serial numbers, certificated in any category, with a Spectre Lift Platform System installed in accordance with Supplemental Type Certificate No. SA00634DE.
- AD 2021-02-04 One-time
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12/47E airplanes, all serial numbers (S/Ns), certificated in any category.
- AD 2020-22-05 One-time
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Model PC-12/47E airplanes, serial numbers 1300 and 1451 through 1944 (except serial number 1720), certificated in any category, with a main landing gear (MLG) spring pack assembly part number (P/N) 532.34.12.101 installed.
- AD 2020-21-23 One-time
Pilatus Aircraft Ltd. Airplanes
This AD was prompted by a report of horizontal stabilizer rear attachment bolts that had not received correct heat treatment during the manufacturing process.
Applicability, as the AD words it
This AD applies to Pilatus Aircraft Ltd. Models PC-12, PC-12/45, PC-12/47, and PC-12/47E airplanes, all serial numbers, certificated in any category, with a horizontal stabilizer rear attachment bolt part number (P/N) 555.10.12.139 marked with production order number FAUF 10169753, FAUF 10171067, or FAUF 10171267 installed.
- AD 2017-11-16 One-time
PILATUS AIRCRAFT LTD. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to PILATUS AIRCRAFT LTD. Model PC-12/47E airplanes, all serial numbers, that: (1) Have Primus APEX Software Build 10 with Honeywell part number (P/N) EB60000487-0110 or Primus APEX Software Build 10.9 with Honeywell P/N EB60000487-0112 installed; and (2) are certificated in any category.
- AD 2016-18-05 Recurring
PILATUS AIRCRAFT LTD. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to PILATUS AIRCRAFT LTD. Models PC-12, PC-12/45, PC-12/47, and PC-12/47E airplanes, all serial numbers, that are: (1) Installed with an affected serial number engine mounting frame assembly (EMF), part number (P/N) 571.20.12.036, listed in figure 1 of paragraph (c)(1) of this AD; and Figure 1 to Paragraph (c)(1) of this AD: EMF P/N 571.20.12.036, Affected Serial Numbers 0001 through 1200 inclusive. 1202 through 1272 inclusive. 1275 through 1323 inclusive. 1325 through 1328 inclusive. 1334 through 1338 inclusive. 1340 and 1342. 1344 through 1346 inclusive. 1348 and 1349. 1358, 1361, and 1365. (2) Certificated in any category.
- AD 2016-12-01 One-time
PILATUS AIRCRAFT LTD. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to PILATUS AIRCRAFT LTD. PC-12, PC-12/45, PC-12/ 47, and PC-12/47E airplanes, all serial numbers delivered before January 1, 2015, certificated in any category.
- AD 2015-19-15 One-time
Pilatus Aircraft Ltd. Airplanes
Applicability, as the AD words it
This AD applies to PILATUS AIRCRAFT LTD. Models PC-12, PC-12/45, and PC-12/47E airplanes, manufacturer serial numbers 244, 307, 409, 646, 1447 through 1450, 1461, 1462, 1466 through 1514, 1516 through 1520, and 1523, certificated in any category.
- AD 2015-14-10 One-time
PILATUS AIRCRAFT LTD. Airplanes
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product.
Applicability, as the AD words it
This AD applies to the following PILATUS AIRCRAFT LTD. model and serial number airplanes, certificated in any category. (1) Model PC-12/47, manufacturer serial numbers (MSNs) 684 through MSN 888; and (2) Model PC-12/47E, MSNs 545, and 1001 through 1520.
- AD 2013-19-10 One-time
PILATUS AIRCRAFT LTD. Airplanes
We are issuing this AD to prevent simultaneous failure of both navigation systems, which could result in loss of control.
Applicability, as the AD words it
This AD applies to PILATUS AIRCRAFT LTD. Model PC-12/47E airplanes, serial numbers 545 and 1001 through 1450, certificated in any category.
- AD 2012-14-15 One-time Appliance
Honeywell International, Inc. Global Navigation Satellite Sensor Units
This AD was prompted by a report and follow-up investigation of a software problem that occurred during flight test trials of satellite based augmentation system (SBAS)-capable aircraft using a similar Honeywell global positioning system (GPS) sensor and the same software as the Model KGS200 Mercury\2\ GNSSU.
Applicability, as the AD words it
(1) This AD applies to all Honeywell International, Inc. Model KGS200 Mercury\2\ wide area augmentation system (WAAS) global navigation satellite sensor units (GNSSU), Honeywell part numbers (P/N) 066-01201-0102 and 066-01201-0104. (2) This product is installed on, but not limited to, PILATUS AIRCRAFT LTD. Model PILATUS PC-12/47E airplanes, certificated in any category.
- AD 2010-17-09 One-time
Pilatus Aircraft Ltd. Model PC-12/47E Airplanes
Applicability, as the AD words it
This AD applies to Model PC-12/47E airplanes, manufacturer serial numbers (MSN) 1001 and MSN 1003 through 1140, certificated in any category.
- AD 2010-09-04 One-time
Honeywell International Inc., Primus EPIC and Primus APEX Flight Management Systems, Installed on, but not Limited to, Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 and ERJ 190 Airplanes, and Pilatus Aircraft Ltd. Model PC-12/47E Airplanes
Applicability, as the AD words it
This AD applies to Honeywell International Inc., Primus EPIC and Primus APEX flight management systems (FMS), having the FMS part numbers (P/N) listed in Table 1 of this AD, installed on, but not limited to, Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 and ERJ 190 airplanes, and Pilatus Aircraft Ltd. Model PC- 12/47E airplanes, certificated in any category. Table 1--Part Numbers FMS Part Number Model Primus EPIC FMS P/N PS7027709-00127 ERJ 170 airplanes. (Load 23.1), and PS7027709-00129 (Load 23.2), both with NZ7.1 VAR12ZS FMS software. Primus EPIC FMS P/N PS7027709-00214 ERJ 190 airplanes. (Load 23.1), and PS7027709-00217 (Load 23.2), both with NZ7.1 VAR12ZS FMS software. Primus APEX FMS P/N EB7037248- PC-12/47E airplanes. 00103, with NZ7.1 VAR12 FMS software.
- AD 2010-05-02 One-time
PILATUS AIRCRAFT LTD. Model PC-12/47E Airplanes
Applicability, as the AD words it
This AD applies to Model PC-12/47E airplanes, all manufacturer serial numbers (MSN), certificated in any category.
- AD 2009-05-07 One-time
PILATUS AIRCRAFT LTD. Models PC-12, PC-12/45, PC-12/47, and PC-12/47E Airplanes
Applicability, as the AD words it
This AD applies to the following model and serial number airplanes, certificated in any category. (1) Models PC-12, PC-12/45, PC-12/47, manufacturer serial numbers (MSNs) 101 through 544, and MSNs 546 through 888; and (2) Model PC-12/47E, manufacturer serial number 545, and MSNs 1001 through 1101.
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.