# AD 2020-17-14: Flight Controls - Type: Airworthiness directive - Status: Current - Products: Dassault Falcon 10 - Effective: October 8, 2020 - Published: September 3, 2020, 85 FR 54888–54890 - Issued: August 13, 2020 - Issued as: Final rule - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - ATA chapter: 27 · Flight controls - Amendment: 39-21219 - Docket: FAA-2020-0448 (https://www.regulations.gov/docket/FAA-2020-0448) - Registered aircraft: 59 may be affected, by airframe or engine model (OpenAirDocs) - Official PDF: https://openairdocs.org/files/sha256/64/43/6443656689b0cd2a66ef92ff9a286d5b2eecd339400154ae20d2917042c93b8a (from https://www.govinfo.gov/content/pkg/FR-2020-09-03/pdf/2020-19389.pdf) - Federal Register: https://www.federalregister.gov/documents/2020/09/03/2020-19389/airworthiness-directives-dassault-aviation-airplanes - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/41232A20429C947C862585D800515594.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/2020-17-14 ## Summary The FAA is adopting a new airworthiness directive (AD) for all Dassault Aviation Model Falcon 10 airplanes. This AD was prompted by a report of hydraulic fluid on the ground near the main landing gear (MLG) brake assembly. The hydraulic leakage started in a cracked hydraulic pipe, with the crack likely due to chafing between two hydraulic pipes or between hydraulic pipes and structure. This AD requires an inspection for chafing or interference of certain hydraulic pipes and certain rib passage holes, and, depending on findings, modification or repair, as specified in a European Union Aviation Safety Agency (EASA), which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products. ## The airworthiness directive 1. The authority citation for part 39 continues to read as follows: 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): 2020-17-14 Dassault Aviation: Amendment 39-21219; Docket No. FAA-2020-0448; Product Identifier 2020-NM-050-AD. ### (a) Effective Date This AD is effective October 8, 2020. ### (b) Affected ADs None. ### (c) Applicability This AD applies to all Dassault Aviation Model Falcon 10 airplanes, certificated in any category. ### (d) Subject Air Transport Association (ATA) of America Code 27, Flight Controls. ### (e) Reason This AD was prompted by a report of hydraulic fluid on the ground near the main landing gear brake assembly. The hydraulic leakage started in a cracked System #2 hydraulic pipe, with the crack likely due to chafing between two hydraulic pipes or between hydraulic pipes and structure. The FAA is issuing this AD to address chafed or cracked hydraulic pipes, which could lead to hydraulic fluid leakage near an ignition source and possibly result in an uncontained fire. ### (f) Compliance Comply with this AD within the compliance times specified, unless already done. ### (g) Requirements Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2020-0072, dated March 26, 2020 (“EASA AD 2020-0072”). ### (h) Exceptions to EASA AD 2020-0072 (1) Where EASA AD 2020-0072 refers to its effective date, this AD requires using the effective date of this AD. (2) The “Remarks” section of EASA AD 2020-0072 does not apply to this AD. ### (i) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Large Aircraft Section, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the Large Aircraft Section, International Validation Branch, send it to the attention of the person identified in paragraph (j) of this AD. Information may be emailed to: 9-AVS-AIR-730-AMOC@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, Large Aircraft Section, International Validation Branch, FAA; or EASA; or Dassault Aviation's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. ### (j) Related Information For more information about this AD, contact Tom Rodriguez, Aerospace Engineer, Large Aircraft Section, International Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3226; email tom.rodriguez@faa.gov. ### (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise. (i) European Union Aviation Safety Agency (EASA) AD 2020-0072, dated March 26, 2020. (ii) [Reserved] (3) For information about EASA AD 2020-0072, contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu; Internet www.easa.europa.eu. You may find this EASA AD on the EASA website at https://ad.easa.europa.eu. (4) You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. This material may be found in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-0448. (5) You may view this material that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email fedreg.legal@nara.gov, or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html. ## Rule preamble ### Dates This AD is effective October 8, 2020. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of October 8, 2020. ### Addresses For material incorporated by reference (IBR) in this AD, contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu; internet www.easa.europa.eu. You may find this IBR material on the EASA website at https://ad.easa.europa.eu. You may view this IBR material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. It is also available in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-0448. ### For further information contact Tom Rodriguez, Aerospace Engineer, Large Aircraft Section, International Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3226; email tom.rodriguez@faa.gov. ### Discussion The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2020-0072, dated March 26, 2020 (“EASA AD 2020-0072”) (also referred to as the Mandatory Continuing Airworthiness Information, or “the MCAI”), to correct an unsafe condition for all Dassault Aviation Model Falcon 10 airplanes. The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all Dassault Aviation Model Falcon 10 airplanes. The NPRM published in the Federal Register on May 7, 2020 (85 FR 27170). The NPRM was prompted by a report of hydraulic fluid on the ground near the MLG brake assembly. The hydraulic leakage started in a cracked System #2 hydraulic pipe, with the crack likely due to chafing between two hydraulic pipes or between hydraulic pipes and structure. The NPRM proposed to require an inspection for chafing or interference of the hydraulic pipes and certain rib passage holes, and, depending on findings, modification or repair, as specified in an EASA AD. The FAA is issuing this AD to address chafed or cracked hydraulic pipes, which could lead to hydraulic fluid leakage near an ignition source and possibly result in an uncontained fire. See the MCAI for additional background information. ### Comments The FAA gave the public the opportunity to participate in developing this final rule. The FAA has considered the comment received. Hailey Berk indicated support for the NPRM. ### Conclusion The FAA reviewed the relevant data, considered the comment received, and determined that air safety and the public interest require adopting this final rule as proposed, except for minor editorial changes. The FAA has determined that these minor changes: • Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and • Do not add any additional burden upon the public than was already proposed in the NPRM. ### Related IBR Material Under 1 CFR Part 51 EASA AD 2020-0072 describes procedures for an inspection for chafing or interference of the System #2 hydraulic pipes and rib 1 to rib 2a passage holes, and, depending on findings, modification to prevent interference or chafing at rib passage holes or repair. This material is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. ### Costs of Compliance The FAA estimates that this AD affects 85 airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD: *Estimated Costs for Required Actions* | Labor cost | Parts cost | Cost per product | Cost on U.S. operators | | --- | --- | --- | --- | | 2 work-hours × $85 per hour = $170 | None | $170 | $14,450 | The FAA estimates the following costs to do any necessary on-condition actions that would be required based on the results of any required actions. The FAA has no way of determining the number of aircraft that might need these on-condition actions: *Estimated Costs of On-Condition Actions* | Labor cost | Parts cost | Cost per product | | --- | --- | --- | | Up to 24 work-hours × $85 per hour = $2,040 | Up to $5,500 | Up to $7,540. | ### Authority for This Rulemaking Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more detail the scope of the Agency's authority. The FAA is issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: General requirements. Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. ### Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a “significant regulatory action” under Executive Order 12866, (2) Will not affect intrastate aviation in Alaska, and (3) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. ### Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A33EU](https://openairdocs.org/tcds/A33EU): Dassault Aviation; names 1 of 1 models: Falcon 10 ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 59 (59 by airframe model, 0 by engine model) - Makers: Dassault-Breguet 56, Avion Marcel Dassault Breguet 2, Avions Marcel Dassault Breguet 1 Models with the most aircraft: - [Dassault-Breguet FALCON 10](https://openairdocs.org/model/dassault-breguet-falcon-10): 56 aircraft (airframe model) - [Avion Marcel Dassault Breguet FALCON 10](https://openairdocs.org/model/avion-marcel-dassault-breguet-falcon-10): 2 aircraft (airframe model) - [Avions Marcel Dassault Breguet FALCON 10](https://openairdocs.org/model/avions-marcel-dassault-breguet-falcon-10): 1 aircraft (airframe model) All 3 models: https://openairdocs.org/ad/2020-17-14/models.md Every aircraft: https://openairdocs.org/ad/2020-17-14/aircraft.md ## Related documents - [Proposed rule FAA-2020-0448](https://openairdocs.org/proposed/FAA-2020-0448): Notice of proposed rulemaking (NPRM), published May 7, 2020 Its text cites no advisory circulars or STCs. --- 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.