Airworthiness Directives; Polskie Zakłady Lotnicze Sp. z o.o. Airplanes

<RULE> DEPARTMENT OF TRANSPORTATION <SUBAGY>Federal Aviation Administration</SUBAGY> <CFR>14 CFR Part 39</CFR> <DEPDOC>[Docket No. FAA-2025-3994; Project Identifier MCAI-2025-01607-A; Amendment 39-23179; AD 2025-21-51]</DEPDOC> <RIN>RIN 2120-AA64</RIN> <SUBJECT>Airworthiness Directives; Polskie Zakłady Lotnicze Sp. z o.o. Airplanes</SUBJECT> <HD SOURCE="HED">AGENCY:</HD> Federal Aviation Administration (FAA), DOT. <HD SOURCE="HED">ACTION:</HD> Final rule; request for comments. <SUM> <HD SOURCE="HED">SUMMARY:</HD> The FAA is adopting a new airworthiness directive (AD) for all Polskie Zakłady Lotnicze Sp. z o.o. Model PZL M28 05 airplanes. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these airplanes. This AD was prompted by damage found in Frame No. 29 and rudder control unit mounting components on Frame No. 29. This AD requires a one-time inspection of the rudder control system mounting bracket attachment components to Frame No. 29 for loose or damaged bolts and the components of Frame No. 29 for cracks and damage, and corrective actions if necessary. The FAA is issuing this AD to address the unsafe condition on these products. </SUM> <EFFDATE> <HD SOURCE="HED">DATES:</HD> This AD is effective November 19, 2025. Emergency AD 2025-21-51, issued on October 15, 2025, which contains the requirements of this amendment, was effective with actual notice. The Director of the Federal Register approved the incorporation by reference of a certain publication identified in this AD as of November 19, 2025. The FAA must receive comments on this AD by December 19, 2025. </EFFDATE> <HD SOURCE="HED">ADDRESSES:</HD> You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • <E T="03">Federal eRulemaking Portal:</E> Go to <E T="03">regulations.gov.</E> Follow the instructions for submitting comments. • <E T="03">Fax:</E> (202) 493-2251. • <E T="03">Mail:</E> U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. • <E T="03">Hand Delivery:</E> Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. <E T="03">AD Docket:</E> You may examine the AD docket at <E T="03">regulations.gov</E> under Docket No. FAA-2025-3994; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The street address for Docket Operations is listed above. <E T="03">Material Incorporated by Reference:</E> • For Polskie Zakłady Lotnicze Sp. z o.o. material identified in this AD, contact Polskie Zakłady Lotnicze Sp. z o.o., Wojska Polskiego 3, 39-300 Mielec, Poland; phone: +48 17 743 1901; email: <E T="03">pzl.lm@global.lmco.com;</E> website: <E T="03">pzlmielec.pl.</E> • You may view this material at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222-5110. It is also available at <E T="03">regulations.gov</E> under Docket No. FAA-2025-3994. <FURINF> <HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD> Doug Rudolph, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (816) 329-4059; email: <E T="03">doug.rudolph@faa.gov.</E> </FURINF> <SUPLINF> <HD SOURCE="HED">SUPPLEMENTARY INFORMATION:</HD> <HD SOURCE="HD1">Comments Invited</HD> The FAA invites you to send any written data, views, or arguments about this final rule. Send your comments using a method listed under the <E T="02">ADDRESSES</E> section. Include “Docket No. FAA-2025-3994; Project Identifier MCAI-2025-01607-A” at the beginning of your comments. The most helpful comments reference a specific portion of the final rule, explain the reason for any recommended change, and include supporting data. The FAA will consider all comments received by the closing date and may amend this final rule because of those comments. Except for Confidential Business Information (CBI) as described in the following paragraph, and other information as described in 14 CFR 11.35, the FAA will post all comments received, without change, to <E T="03">regulations.gov,</E> including any personal information you provide. The agency will also post a report summarizing each substantive verbal contact received about this final rule. <HD SOURCE="HD1">Confidential Business Information</HD> CBI is commercial or financial information that is both customarily and actually treated as private by its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public disclosure. If your comments responsive to this AD contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this AD, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI as “PROPIN.” The FAA will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this AD. Submissions containing CBI should be sent to Doug Rudolph, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590. Any commentary that the FAA receives which is not specifically designated as CBI will be placed in the public docket for this rulemaking. <HD SOURCE="HD1">Background</HD> The FAA issued Emergency AD 2025-21-51, dated October 15, 2025 (the emergency AD), to address an unsafe condition on Polskie Zakłady Lotnicze Sp. z o.o. Model PZL M28 05 airplanes, all serial numbers. The FAA sent the emergency AD to all known U.S. owners and operators of these airplanes. The emergency AD requires a one-time inspection of the rudder control system mounting bracket attachment components to Frame No. 29 for loose or damaged bolts and the components of Frame No. 29 for cracks and damage, and corrective actions if necessary. The emergency AD was prompted by Emergency AD 2025-0221-E, dated October 10, 2025, issued by the European Union Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union (EASA AD 2025-0221-E) (also referred to as the MCAI), to correct an unsafe condition on Polskie Zakłady Lotnicze Sp. z o.o. Models PZL M28 02 (including PZL M28 02-W variant) and PZL M28 05 airplanes, all serial numbers. The MCAI states that damage was found in Frame No. 29 and rudder control unit mounting components on Frame No. 29. The emergency AD was prompted by a report of cracked bolts that attach the rudder control unit mounting bracket to Frame No. 29. This resulted in the loss of two out of the four bolts on a structural component in the rudder flight control system. The emergency AD is intended to detect and correct cracked bolts and structure that attach the rudder control unit mounting bracket to Frame No. 29. This condition, if not addressed, could result in loss of the bolts that attach structural components to the rudder flight control system, and consequent loss of rudder control and reduced control of the airplane. The FAA is issuing this AD to address the unsafe condition on these products. You may examine the MCAI in the AD docket at <E T="03">regulations.gov</E> under Docket No. FAA-2025-3994. <HD SOURCE="HD1">Material Incorporated by Reference Under 1 CFR Part 51</HD> The FAA reviewed Polskie Zakłady Lotnicze Sp. z o.o. Service Bulletin No. E/12.152/2025, dated October 9, 2025 (Polskie Zakłady Lotnicze Sp. z o.o. SB E/12.152/2025). This material specifies procedures for a one-time visual inspection of the rudder control system mounting bracket attachment components to Frame No. 29 for loose or damaged ( <E T="03">e.g.,</E> cracked, corroded, or deformed) bolts and nuts and the components of Frame No. 29 for damage ( <E T="03">e.g.,</E> cracks, corrosion, or deformation). This material also specifies replacing any damaged ( <E T="03">e.g.,</E> cracked, corroded, or deformed) bolts and nuts, correcting any looseness found, and repairing any damaged ( <E T="03">e.g.,</E> cracked, corroded, or deformed) components. 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 <E T="02">ADDRESSES</E> section. <HD SOURCE="HD1">FAA's Determination</HD> These products have been approved by the civil aviation authority of another country and are approved for operation in the United States. Pursuant to the FAA's bilateral agreement with this State of Design Authority, that authority has notified the FAA of the unsafe condition described in the MCAI and material referenced above. The FAA is issuing this AD after determining that the unsafe condition described previously is likely to exist or develop on other products of the same type design. <HD SOURCE="HD1">AD Requirements</HD> This AD requires accomplishing the actions specified in Polskie Zakłady Lotnicze Sp. z o.o. SB E/12.152/2025, except as discussed under “Differences Between this AD and the MCAI and Referenced Material.” <HD SOURCE="HD1">Differences Between This AD, the Emergency AD, and the MCAI and Referenced Material</HD> The MCAI applies to Polskie Zakłady Lotnicze Sp. z o.o. Model PZL M28 02-W airplanes, but this AD and the emergency AD do not because this model does not have an FAA type certificate. Polskie Zakłady Lotnicze Sp. z o.o. SB E/12.152/2025 states to contact Polskie Zakłady Lotnicze Sp. z o.o. if there is any damage beyond the damage ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Preview showing 10k of 25k characters. Full document text is stored and available for version comparison. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━