What the directive covers
An airworthiness directive, AD/CESSNA 400/121, has been registered covering Cessna 400 model aircraft. The directive requires inspection and modification of the wing spar lower cap.
The directive was registered on the Federal Register of Legislation on 23 October 2026 and is now in force.
What details are not available
The source text provided does not include the technical detail of what the inspection or modification involves, the reason it was issued, or any compliance timeframe. This information would be contained in the full legislative instrument document.
Who this notice concerns
This notice is relevant to Cessna 400 aircraft owners, operators and maintenance engineers rather than typical small businesses, unless the business owns, leases or maintains this specific aircraft type.
Key actions
- If a business owns, operates or maintains a Cessna 400 aircraft, the full legislative instrument text and explanatory statement can be obtained and read at https://www.legislation.gov.au/F2026L01410.
- Checking with the relevant aircraft maintenance organisation can confirm whether this directive applies to the specific aircraft and what compliance deadline applies.
- Setting up an alert on the Federal Register of Legislation page for this item allows notification of any future amendments or related updates.
This is a plain-English summary for information only, not legal or compliance advice. Always check the official source or consult a qualified professional.