68-12-01 SIAI-MARCHETTI: Amdt. 39-607. Applies to Model S.205/22R airplanes, Serial Numbers 213 through 4-125.
Compliance required as indicated.
To avoid the possibility of flames or harmful gases passing from the engine compartment into the cockpit or other parts of the airplane, within the next 200 hours' time in service after the effective date of this AD, unless already accomplished, incorporate sealing plates and apply fireproof sealant "Stabond HT-4" or an FAA-approved equivalent at the firewall and nose wheel well, in accordance with Siai-Marchetti Service Bulletin No. 205B19, dated January 13, 1968, or later RAI-approved issue, or FAA-approved equivalent.
This amendment becomes effective July 5, 1968.