Airworthiness Directive 96-10477
one-timeAirworthiness Directives; Aviat Aircraft Inc. Models S-2A, S-2B, and S-2S Airplanes (Formerly Pitts Models S-2A, S-2B, and S-2S Airplanes)
What this AD requires
This amendment adopts a new airworthiness directive (AD) that is applicable to Aviat Aircraft Inc., Models S-2A, S-2B, and S-2S airplanes (formerly Pitts Models S-2A, S-2B, and S-2S airplanes). This action requires inspecting the longerons aft of the rear cabane struts for cracks, and if cracked, prior to further flight, repairing the cracks. Reports of longeron failure caused by fatigue aft of the rear cabane struts prompted this action. The actions specified by this AD are intended to prevent cracking and subsequent failure of the longerons resulting in possible loss of control of the airplane.
Which aircraft AD 96-10477 applies to
Extracted text begins at the standard 'preceding applicability provision' boilerplate; the AD's actual airplane model/serial list precedes this excerpt and was not captured by extraction. Requires repetitive inspection of longerons aft of the rear cabane struts for cracks per Aviat Service Bulletin No. 24 dated February 8, 1996; special flight permits require aerobatic flying to be prohibited, consistent with an aerobatic airplane type.
Whether AD 96-10477 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.