Discussion \n\n\n\tThe FAA was notified by Quest (now Daher Aircraft Design, LLC) that the performance section in the Kodiak 100 Series POH/AFM, revisions 8 through 21, and supplement 5, initial release and revision 01, to the POH/AFM were published with incorrect low weight landing distances in the ''Obstacle Landing Distance'' tables. The landing distances for 6,000 lbs., 5,000 lbs., and 4,000 lbs. were incorrectly calculated and show values up to 520 feet shorter than actual expected performance. However, the landing distances for 6,690 lbs. are accurate. \n\tModel Kodiak 100 airplanes were originally type certificated with a gross weight of 6,690 lbs. Under an amended type certificate, serial numbers 100-0035 and subsequent were produced with an increased gross weight configuration of 7,255 lbs. and delivered with a POH/AFM (revisions 8 through 21) that contained limitations and performance data for the increased gross weight. For airplanes with serialnumbers produced before 100-0035, Quest issued Service Notice SN-025 as an optional retrofit to increase the gross weight. Airplanes retrofitted with SN-025 were provided a supplement 5 to the POH/AFM (revision 1 through 7) that contained the limitations and performance changes associated with the increased gross weight. \n\tQuest issued revision 22 of the POH/AFM to correct the landing distances data in the ''Obstacle Landing Distance'' table and to correct other errors and inconsistencies throughout the document. \n\tIf not corrected, incorrect obstacle landing distances for weights below max gross weight could result in a runway overrun. The FAA is issuing this AD to address the unsafe condition on these products. \n\nRelated Service Information Under 1 CFR Part 51 \n\n\n\tThe FAA reviewed Table 5-19: Obstacle Landing Distance, pages 5_68 and 5_69, of Section 5, Performance, of the KODIAK 100 Series Aircraft Pilot's Operating Handbook and FAA Approved Airplane Flight Manual (Document No: AM901.0), Revision 22, dated April 10, 2019. These pages contain correct landing distance data in the ''Obstacle Landing Distance'' table. This service information 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. \n\nOther Related Service Information \n\n\n\tThe FAA reviewed Quest Safety Communique, QSC-011, Revision 00, dated April 1, 2019. This document notifies owner/operators of the incorrect data in the ''Obstacle Landing Distance'' table and recommends they revise their procedures until the corrected data is available. \n\nFAA's Determination \n\n\n\tThe FAA is issuing this AD because it evaluated all relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. \n\n((Page 15053)) \n\nAD Requirements \n\n\n\tThis AD requires revising the performance section of the POH/AFM or supplement 5 to the POH/AFM by removing the existing ''Obstacle Landing Distance'' table and replacing it with the ''Obstacle Landing Distance'' table found in revision 22 of the POH/AFM. This AD specifies that the owner/operator (pilot) may revise the AFM. Revising an AFM is not considered a maintenance action and may be done by a pilot holding at least a private pilot certificate. This action must be recorded in the aircraft maintenance records to show compliance with this AD. \n\nFAA's Justification and Determination of the Effective Date \n\n\n\tAn unsafe condition exists that requires the immediate adoption of this AD without providing an opportunity for public comments prior to adoption. The FAA has found that the risk to the flying public justifies waiving notice and comment prior to adoption of this rule because a pilot using discrepant obstacle landing distance data could result in overrunning the runway on landing. Since the runway overrun could occur on any landing, the FAA requires compliance with this AD before further flight. Therefore, the FAA finds good cause that notice and opportunity for prior public comment are impracticable. In addition, for the reason stated above, the FAA finds that good cause exists for making this amendment effective in less than 30 days. \n\nComments Invited \n\n\n\tThis AD is a final rule that involves requirements affecting flight safety and was not preceded by notice and an opportunity for public comment. However, the FAA invites you to send any written data, views, or arguments about this final rule. Send your comments to an address listed under the ADDRESSES section. Include the docket number FAA-2020- 0181 and Product Identifier 2019-CE-026-AD at the beginning of your comments. The FAA specifically invites comments on the overall regulatory, economic, environmental, and energy aspects of this final rule. The FAA will consider all comments received by the closing date and may amend this final rule because of those comments. \n\tThe FAA will post all comments received, without change, to https://www.regulations.gov, including any personal information you provide. The FAA will also post a report summarizing each substantive verbal contact received about this final rule. \n\nCosts of Compliance \n\n\n\tThe FAA estimates that this AD affects 99 airplanes of U.S. registry. \n\tThe FAA estimates the following costs to comply with this AD: \n\n\n\tEstimated Costs ---------------------------------------------------------------------------------------------------------------- \n\tCost per Cost on U.S. \n\tAction Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- Replace the ''Obstacle Landing .5 work-hour x $85 Not applicable....... $42.50 $4,207.50 \n\tDistance'' table. per hour = $42.50. ---------------------------------------------------------------------------------------------------------------- \n\n\n\tThis AD allows the owner/operator (pilot) to replace the affected table in the POH/AFM or supplement 5 to the POH/AFM required by this AD. According to Quest, they will provide one full copy of Quest Aircraft KODIAK 100 Series Aircraft Pilot's Operating Handbook and FAA Approved Airplane Flight Manual (Document No: AM901.0), Revision 22, dated April 10, 2019, to operators. However, the FAA does not control warranty coverage for affected individuals. \n\nAuthority for This Rulemaking \n\n\n\tTitle 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. \n\tThe 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. \n\tThis AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to small airplanes, gliders, balloons, airships, domestic business jet transport airplanes, and associated appliances to the Director of the Policy and Innovation Division. \n\nRegulatory Flexibility ActThe requirements of the Regulatory Flexibility Act (RFA) do not apply when an agency finds good cause pursuant to 5 U.S.C. 553 to adopt a rule without prior notice and comment. Because FAA has determined that it has good cause to adopt this rule without notice and comment, RFA analysis is not required. \n\nRegulatory Findings \n\n\n\tThis 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. \n\tFor the reasons discussed above, I certify that this AD: \n\t(1) Is not a ''significant regulatory action'' under Executive Order 12866, and \n\t(2) Will not affect intrastate aviation in Alaska. \n\nList of Subjects in 14 CFR Part 39 \n\n\n\tAir transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.