Airworthiness Directive 01-1233

recurring
AD 01-1233 · 2001-01-18 · airframe

Airworthiness Directives; Airbus Model A330-301, -321, and -322 Series Airplanes; and Model A340-211, -212, -213, -311, -312, and -313 Series Airplanes

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), applicable to all Airbus Model A330-301, -321, and -322 series airplanes; and Model A340-211, -212, -213, -311, -312, and -313 series airplanes. The existing AD requires repetitive replacements of the yaw damper actuator installed on active position with a new or overhauled actuator. This action adds a requirement, for certain airplanes, to install upgraded flight control primary computers, which terminates the requirement for the repetitive actuator replacements for those airplanes. This action is necessary to prevent hydraulic leakage from the yaw damper actuator installed on active position, due to premature wear of the dynamic seals between the actuator piston and the piston bearing. Hydraulic leakage could lead to the complete loss of the green hydraulic circuit, which could result in reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 01-1233 applies to

MakesAirbus
ModelsA340-211

certain

Whether AD 01-1233 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:

Method of complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 01-1233 complied with on your aircraft?

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.