AD 76-19-05

76-19-05 AVIONS MARCEL DASSAULT (AMD): Amendment 39-2730. Applies to all Model Fan Jet Falcon airplanes, all Series, certificated in all categories.

Compliance is required as indicated, unless already accomplished.

To prevent the possible inability of the emergency fuel shut-off valves to shut down the engines, accomplish the following:

(a) Within the next 20 hours time in service after the effective date of this AD, unless already accomplished, inspect the fuel shut-off control in accordance with AMD Service Bulletin No. 551, dated March 3, 1976, or FAA-approved equivalent, for each engine to determine the time for the engine to flame-out after actuation of the emergency fuel shut-off control with the engine operating initially at ground idle rpm. If flame-out time is found to exceed 15 seconds, prior to further flight, except that the airplane may be flown in accordance with FARs 21.197 and 21.199 to a base where the repair can be performed, readjust the emergency fuel shut-off control in accordance with Fan Jet Falcon Maintenance Manual Chapter 76-20-2, pages 501 through 503, or an FAA-approved equivalent.

(b) Within the next 150 hours time in service or 60 days after the effective date of this AD, whichever occurs later, unless already accomplished, inspect for proper assembly and repair, as necessary, the fuel shut-off valves, Zenith P/N B99-26203 and B99-26204, in accordance with AMD Service Bulletin No. 550, dated March 3, 1976, or an FAA-approved equivalent.

This amendment becomes effective October 7, 1976.