FAA Proposes Update to Airworthiness Directive for Boeing 747-100 to 747SP Series Airplanes

Summary

The FAA proposes to update an existing airworthiness directive for Boeing 747-100 to 747SP series airplanes to require a terminating modification to prevent cracked fastener holes at the right S-6 lap splice, which could lead to rapid decompression and loss of structural integrity.