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US-91-21-01R1 : Exhaust System Joints, Flanges, V-band Couplings and Brackets - Inspection / Modification

Number US-91-21-01R1
Issued by United States of America  United States of America
Issue date 1996-06-27
Effective date 1996-06-27
EASA approval number
ATA Chapter 78
Approval Holder
/ Type Designation
  • LYCOMING ENGINES
    • TIO-540
      • TIO-540-S1AD
Revision Not applicable
Correction Not applicable
Supersedure None
Publication(s) and related information Textron Lycoming SB 484 dated January 30, 1989; and SB 499 dated June 14, 1991. Copies may be obtained from Textron Lycoming/Subsidiary of Textron Inc., Williamsport, PA 17701; telephone (717) 327-7278, fax (717) 327-7022.
Remarks Comments regarding this AD should be referred to the Safety Information Section, Certification Directorate, EASA;
E-mail: ADs [at] easa.europa [dot] eu

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