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US-90-21-17 : SUPERSEDED BY FAA AD 2012-10-03

Number US-90-21-17
Issued by United States of America  United States of America
Issue date 1990-10-12
Effective date 1990-11-16
EASA approval number
ATA Chapter 53
Approval Holder
/ Type Designation
  • BOEING
    • 747
      • 747-100
      • 747-100B
      • 747-200B
      • 747-200C
      • 747-200F
      • 747-300
      • 747SP
      • 747SR
Revision Not applicable
Correction Not applicable
Supersedure This AD supersedes FAA AD 89-05-03.
Publication(s) and related information Boeing Alert Service Bulletin 747-53A2303, dated June 2, 1988, or Revision 1, dated March 29, 1990. Copies may be obtained upon request from Boeing Commercial Airplane Group, P.O. Box 3707, Seattle, Washington 98124.
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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