Federal Register - May 19, 2021
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Source: Federal Register
27030
Federal Register / Vol. 86, No. 95 / Wednesday, May 19, 2021 / Rules and Regulations
Figure 1 to paragraph g: Serial numbers that are not affected
66
605
1287
1395
72
671
1334
1396
175
720
1337
1397
200
727
1368
1400
331
728
1369
1401
441
773
1370
1403
448
778
1373
1404
449
812
1376
1405
456
831
1380
1406
470
887
1382
1407
494
991
1385
1408
495
1049
1386
1409
498
1208
1387
-
499
1236
1388
-
561
1284
1394
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1 Within 12 months after the effective date of this AD: Do an inspection to determine if affected MFS PCUs are installed on the airplane in accordance with Paragraph 2.B. of Bombardier Service Bulletin 10027
17, Revision 03, dated June 19, 2020; or Bombardier Service Bulletin 35027010, dated June 19, 2020; as applicable. A review of airplane maintenance records is acceptable in lieu of this inspection if the serial number of the MFS PCU can be conclusively determined from that review.
2 Within 12 months after the effective date of this AD: Replace any affected MFS
PCUs with MFS PCUs that are not affected, in accordance with Paragraphs 2.C., 2.D., 2.E., and 2.F., as applicable, of Bombardier Service Bulletin 1002717, Revision 03, dated June 19, 2020; or Bombardier Service Bulletin 35027010, dated June 19, 2020; as applicable.
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i Parts Installation Prohibition As of the effective date of this AD, no person may install an affected MFS PCU, on any airplane.
j Other FAA AD Provisions The following provisions also apply to this AD:
1 Alternative Methods of Compliance AMOCs: The Manager, New York ACO
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 responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the certification office, send it to ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 516
2287300; fax: 5167945531. Before using any approved AMOC, notify your appropriate
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principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards 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, New York ACO Branch, FAA; or Transport Canada Civil Aviation TCCA; or Bombardier, Inc.s TCCA Design Approval Organization DAO. If approved by the DAO, the approval must include the DAO-authorized signature.
k Related Information 1 Refer to Mandatory Continuing Airworthiness Information MCAI TCCA AD
CF202026, dated August 4, 2020, for related information. This MCAI may be found in the AD docket on the internet at https www.regulations.gov by searching for and locating Docket No. FAA20210101.
2 For more information about this AD, contact Siddeeq Bacchus, Aerospace
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h Required Actions
