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Airworthiness Directive 01-21104

one-time
AD 01-21104 · 2001-08-23 · airframe

Airworthiness Directives; BAe Systems (Operations) Limited Model Avro 146-RJ85A and 146-RJ100A Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain BAe Systems (Operations) Limited Model Avro 146- RJ85A and 146-RJ100A series airplanes. This action requires replacement of bolts in the wing rear spar at the center fuel tank. This action is prompted by mandatory continuing airworthiness information from a foreign civil airworthiness authority. This action is necessary to prevent the failure of bolts in the wing rear spar at the center fuel tank, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.

Which aircraft AD 01-21104 applies to

MakesBae Systems (Operations) Limited
Models146-RJ100A

certain

Whether AD 01-21104 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 compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 01-21104 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.