[hharney]

Compliance with the Revision 4 is not required if in compliance with the Original Issue or Revision 1, Revision 2, or Revision 3.

However, you must remove and destroy the Instructions for Continued Airworthiness Attachment that is stored in the Technical Library CD-ROM or Maintenance Manual for your airplane and replace it with the Instructions for Continued Airworthiness Revision A that is attached to this service bulletin.