# SAIB NM-11-46R1: Equipment/Furnishings: Koito Industries Passenger Seats - Type: Special airworthiness information bulletin (advisory, not mandatory) - Status: Current - Revision: 0 - Issued: April 30, 2013 - Products: Koito Industries Passenger seats and Koito Industries passenger seats - Product type: Aircraft, Large Airplane - PDF: https://openairdocs.org/files/sha256/35/71/3571ea2f333a7a462dc95da9525e3de09c6c0e9cb1cfa01fb8274be2d8b750a9 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F2E2E47ED5917B9A86257B5D0063A3F0.0001 - DRS record last changed: May 1, 2013 - Page: https://openairdocs.org/saib/NM-11-46R1 ## Text FAA Aviation Safety **SPECIAL AIRWORTHINESS** INFORMATION BULLETIN SUBJ: Equipment/Furnishings: Koito Industries Passenger Seats SAIB: NM-11-46R1 Date: April 30, 2013 This is information only. Recommendations aren’t mandatory. CORRECTION: The note indicators in Table 1 have been fixed. Introduction This Special Airworthiness Information Bulletin advises registered owners, operators, and original equipment manufacturers of transport category airplanes having certain Koito Industries passenger seats of information related to Airworthiness Directive (AD) 2011–12–01. Background Between December 2009 and June 2010, Koito Industries, under the oversight of the Japan Civil Aviation Bureau (JCAB), performed a series of tests (both static and dynamic) on certain Koito Industries passenger seats. The results of these tests have been incorporated into Table 1 and Table 2 of this SAIB. In May 2011 we issued the subject AD for Koito Industries passenger seats to ensure certain static and dynamic strength criteria are met. That AD was issued without related service information from the design approval holder; therefore, owners and operators could find it difficult to obtain work instructions than it would be using work instructions provided in service information. Because there are numerous airplane models and part numbers for the affected seats, owners and operators may be able to utilize data from seats with more critical design features to obtain and implement appropriate work instructions. The FAA worked closely with the European Aviation Safety Agency (EASA) for harmonization before issuing our AD. In addition, EASA recently issued Safety Information Bulletin 2011-23, which contains related recommendations that are fully acceptable to the FAA. Since November 2009 Koito Industries, under the oversight of the Japan Civil Aviation Bureau (JCAB), has continued testing on certain Koito Industries passenger seats. The tables in this SAIB have been revised to reflect acceptable test data available at Koito Industries. Acceptable testing by other entities (i.e. test facilities, production approval holders, designated organizational authorities, or airlines) is not included in the tables. Recommendations The FAA recommends that operators use the current data provided in Table 1 of this SAIB as guidance to help reduce the amount of testing necessary for seats installed on Boeing airplanes; the current data provided in Table 2 of this SAIB provides guidance to help reduce the amount of testing necessary for seats installed on Airbus airplanes. The concept of “seat clusters” has been developed based on similarity of design and construction. Each row of Table 1 and Table 2 of this SAIB corresponds to a seat cluster that may include one or more Koito Industries seat models. The most critical seat part number for each cluster has been identified. The current data include corrections of typographical errors, new model additions, re-clustering, new clusters, and identifying the next less 2 critical seat part number when the critical seat part number tested failed or is no longer in-service. Some seat models are listed twice due to rearranging of the seat cluster. Some clusters may have multiple critical part numbers identified. Testing has been conducted on both in-service and newly manufactured test articles. Testing on newly manufactured test articles is acceptable to demonstrate static strength; however, it is not currently acceptable to demonstrate dynamic strength unless shown that the in-service seats conform to the approved design. Information on available test data has been incorporated into Table 1 and Table 2 of this SAIB. The information shown in Table 1 and Table 2 of this SAIB identify only acceptable test data available at Koito Industries. Any commercial arrangements necessary to obtain such data are the responsibility of the operators. For Further Information Contact Patrick T. Farina, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; telephone (562) 627-5344; fax (562) 627-5210; email patrick.farina@faa.gov. 3 Table 1: The Boeing Company Seat Clusters Seat Model Critical Seat Part Number for the Static Tests required by the AD Critical Seat Part Number for Dynamic Test required by the AD An available Koito Dynamic/Static Test Report is acceptable to show compliance with the AD static strength requirements ARS-311 145-2455-401F ARS-339 161-3325-401 Yes ARS-347 166-3624-401 ARS-385* 179-9828-401 ARS-392 181-5029-405 Yes ARS-423 ARS-417 ARS-446 161-5319-401 From ARS-423 Yes ARS-478 ARS-418 83-178B6124-401 From ARS-478 ARS-480 83204B10018-403 ARS-482 83-206B5596-401 Yes 1 ARS-483 83-193B6354-401 Yes 1 ARS-514 83-178B7325-409 ARS-550 ARS-595 83-222B7451-403 From ARS-550 ARS-553 83-223B7336-401 ARS-577 Y11B31 83-220B8711-437 From ARS-577 Yes 1 ARS-591 ARS-615 ARS-600 Y11B73 ARS-620 ARS-673 ARS-626 ARS-610 ARS-636 83-220B8306-401 From ARS-591 83-220B8306-401 From ARS-591 Yes ARS-644 ARS-596 Y11B33 83236B10621A401 From ARS-644 or 83-220B8306-401 From ARS-591 83236B10621A401 From ARS-644 Yes ARS-592 ARS-616 ARS-814 ARS-859 Y27B73 83-220B8308-402 or 83-220B8308-412 From ARS-592 Yes ARS-597 ARS-669 ARS-601 ARS-629 83-237B8545A401 From ARS-597 Yes ARS-607 83-239B9071-403 Yes ARS-627 ARS-594 83-227B9988-401 From ARS-627 Yes ARS-649 83251B10915-415 Yes 4 Seat Model Critical Seat Part Number for the Static Tests required by the AD Critical Seat Part Number for Dynamic Test required by the AD An available Koito Dynamic/Static Test Report is acceptable to show compliance with the AD static strength requirements ARS-652 83252B11112-401 Yes ARS-668 83258B11456A401 ARS-670 F11M11 ARS-657 ARS-843 ARS-709 F1141B7C341-401 From ARS-670 Yes ARS-671 - Std Row 83261B11288-401 Yes ARS-674 - Std Row ARS-649 ARS-815 Y21B73 ARS-651 83264B12255-401 or 83264B15875-401 From ARS-674 Yes ARS-694 - Front Row 83289B20021-401 ARS-694 - Std Row 83289B20019-401 ARS-704 83258B12423-401 (or dynamic test on ARS-668) ARS-710- Std Row 83269B15257-403 (or test ARS-674 with additional 11 pounds of ballast) Yes ARS-813 83252B16199-401 ARS-823* 83273B15860-407 ARS-831* 83220B16151-401 ARS-833 PB7-2001 83274B16049-403 From ARS-833 ARS-835 ARS-869 83283B16713-403 From ARS-835 83283B16713-403 From ARS-835 Yes1 ARS-841 83285B17224-401 ARS-844 83290B17256-401 ARS-849 ARS-857 83296B18681-431 From ARS-849 Yes ARS-858 83296B19960-401 or 83296B19143-401 Yes ARS-861 83293B19310-407 ARS-862 83294B19312-409 P11B33 P11B31 ARS-832 ARS-853 P1143B3J306-401 From P11B33 Yes P11M93 P1141M9J302-401 Yes P21B35 P21B33 P2141B3A405-401 with additional 8 pounds of ballast From P21B35 Yes P21B73 P2161B7A401-401 Yes 5 Seat Model Critical Seat Part Number for the Static Tests required by the AD Critical Seat Part Number for Dynamic Test required by the AD An available Koito Dynamic/Static Test Report is acceptable to show compliance with the AD static strength requirements P32B73 P3249B7J401-401 Yes P52B41 P56B63 ARS-847 P5241B4A401-401 From P52B41 P5641B6A407-401 From P56B63 Y15B73 ARS-710 - Front Row ARS-674 - Front Row ARS-671 - Front Row Y1551B7C341-401 From Y15B73 Yes YE1B35 YE157B3A407-401 Yes YG7B35 YG751B3A401-401 Note 1: The applicable TSO requires 4g side loading. The side test was conducted at 1.5g. Review the type certification basis of the airplane model to determine if the data may be beneficial to satisfy the aircraft installation requirements. *According to current data, this seat model is no longer in service. 6 Table 2: Airbus Industries Seat Clusters * According to current data, this seat model is no longer in service. Seat Model Critical Seat Part Number for the Static Tests required by the AD Critical Seat Part Number for Dynamic Test required by the AD An available Koito Dynamic/Static Test Report is acceptable to show compliance with the AD static strength requirements ARS-451* 83-178B5860-403 N/A ARS-507 83-214B6686-401 83-214B6686-401 ARS-511 83-201B6764-401 83-201B6764-401 ARS-514 83-178B7542-413 83-178B7542-413 ARS-516 83-214B7086-401 83-214B7086-401 ARS-571 83-227B7955-401 83-227B7955-401 ARS-604 83222B8743-404 N/A ARS-617 83-240B10457- 407 or 83-240B8865-407 83-240B10457- 407 or 83-240B8865-407 ARS-641 83247B10752-401 83247B10752-401 Yes ARS-642 83248B10761-405 83248B10761-405 ARS-646* 83250B10730-403 83250B10730-403 ARS-658 P22A23 83255B12061-401 From ARS-658 N/A ARS-659 Y21A23 83256B12051-401 From ARS-659 N/A ARS-667 83257B11418-403 N/A ARS-670 83270B17113-401 83270B17113-401 ARS-672 ARS-643 ARS-643R ARS-694 ARS-707 ARS-837 ARS-647 ARS-838 83262B12136-401 From ARS-672 83262B12136-401 From ARS-672 Yes ARS-697 83267B15046-401 N/A ARS-832 83274B16017-401 N/A ARS-836 83279B16586-411 83279B16586-411 ARS-840 83284B17131-401 83284B17131-401 F44A33 F4439A3S014-401 F4439A3S014-401 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). 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