Airworthiness Directive 04-7353
one-timeAirworthiness Directives; Construcciones Aeronauticas, S.A. (CASA), Model C-235 Series Airplanes
What this AD requires
This amendment adopts a new airworthiness directive (AD), applicable to certain CASA Model C-235 series airplanes, that requires modification of the electrical wiring of the rudder trim control unit. This action is necessary to prevent the flight crew from being able to inhibit the aural warning for the landing gear up. If the flight crew of the next flight or possibly of the same flight is unaware that the aural warning had been disabled, they could inadvertently land the airplane with the landing gear not down and locked. This action is intended to address the identified unsafe condition.
Which aircraft AD 04-7353 applies to
certain
Whether AD 04-7353 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.