AD/TSA-600/1 Amdt 1 - Pilot Seat Back-Rest Attach Bolt - Inspection and Replacement - CANCELLED

What this is: A cancellation notice for an aviation safety directive (called an Airworthiness Directive or AD) that previously applied to specific Aerostar aircraft models.

What it used to require: The original directive (AD/TSA-600/1) mandated that owners or operators of Aerostar (Piper/Ted Smith) 600 and 700 series aircraft inspect and replace the pilot seat back-rest attach bolt. This had to be done within 200 hours of flight time after November 1976, following specific manufacturer guidelines (Ted Smith Corporation Service Bulletin No. 600-51).

What this document does: It cancels that safety requirement entirely. As of 4 June 2009, aircraft owners no longer need to perform this specific inspection or replacement.

Why it matters: If you own or operate one of these aircraft, you are no longer legally required to comply with the seat bolt inspection mandated by the original 1976 directive. This reduces maintenance obligations for these older aircraft models.