AD/SA 315/9 Amdt 1 - State of Design Airworthiness Directives

The primary duty holders are the registered operators and owners of Eurocopter (Aerospatiale) SA 315B helicopters that are on the Australian Civil Aircraft Register. The applicability clause states simply “EUROCOPTER (AEROSPATIALE) SA 315B helicopters,” with no exceptions for serial numbers, modifications, or operating environment. Every helicopter of that model in Australia as of 30 August 2007 is in scope.

This includes commercial operators, aerial work operators (such as mustering, powerline inspection, or surveying), charter businesses, private owners, and any government entity operating the type. Because the SA 315B (Lama) is a niche high-altitude and high-performance turbine single, the fleet is relatively small but often operated in remote and demanding environments. The AD does not distinguish between helicopters used for passenger transport, cargo, or recreational purposes.

The AD also indirectly affects maintenance organisations. Licensed aircraft maintenance engineers (LAMEs) and approved maintenance organisations (AMOs) will be the ones performing the actual inspection, modification, or replacement tasks prescribed by each DGAC AD. The operator is responsible for ensuring the work is done, but the practical burden of interpretation, parts sourcing, and record-keeping falls on the maintenance provider.

A secondary effect is on sellers and buyers. If an SA 315B is put on the market after this AD takes effect, the vendor must demonstrate compliance to the purchaser. A helicopter that has not had the DGAC ADs applied (or verified as already accomplished) would be less marketable and potentially unairworthy.

Because the AD references foreign directives that date back as far as 1971, the compliance burden falls disproportionately on older airframes that may have changed hands many times or had part-time maintenance histories. A helicopter that has always been in the Australian fleet may have already been subject to earlier CASA ADs incorporating some of these DGAC requirements. But a helicopter imported recently from another jurisdiction could have gaps. The AD explicitly identifies “recently registered Australian aircraft” as the impetus, so recent importers are especially affected.

The AD creates a clear, sequential duty for the responsible person (likely the registered operator or a person who has been given control of the aircraft as defined in the Civil Aviation Act).

Duty 1: Determine applicability (30-day window). Within 30 days of 30 August 2007, the operator must ascertain for each of the 15 DGAC ADs in Table 1 whether it is applicable. This is not a simple check of a manual; it requires examination of the aircraft’s modification status, part number history, and maintenance records. For example, AD 71-42-1 (Main Rotor Hub) may apply only to hubs fitted before a certain serial number, or may have been superseded by a later modification. The operator must make a documented decision for each AD.

Duty 2: Perform actions (12-month window). If any DGAC AD is applicable and has not already been accomplished, the operator must carry out the actions required by that AD within 12 months of 30 August 2007. The AD does not specify what those actions are: it merely points to the foreign directive. This means the operator must obtain the DGAC AD text, understand its requirements (which could include one-time inspection, repetitive inspections, replacement of life-limited parts, or modification), and complete them. For ADs with already expired original compliance dates, the Australian AD effectively sets a new deadline.

No right of variation or exemption stated in the AD. The instrument does not mention any process for obtaining an extension or alternative means of compliance. Under the broader CASR framework, an operator may apply to CASA for an exemption or variation, but this AD itself does not grant one. The absence of a stated grace period beyond the 12 months means that if an operator discovers a DGAC AD was applicable but not accomplished within the 12 months, the aircraft may be grounded.

Record-keeping. Implicit in the duty to determine applicability is a duty to keep records of that determination and of the actions taken. CASA airworthiness inspectors will expect to see logbook entries or maintenance action sheets referencing each DGAC AD and showing that it was either not applicable or was complied with.

The AD does not list any rights, but the operator retains the right to sell or dispose of the aircraft before the 12-month deadline, or to keep it grounded indefinitely if it chooses not to comply. The duty is enforceable on the operator of an aircraft that is flown or is intended to be flown in Australian airspace.

The source text does not specify penalties. However, ADs in Australia are given legal force under the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations. A failure to comply with an AD is a regulatory offence. For an individual, the maximum penalty under section 20A of the Civil Aviation Act for operating an aircraft that is not airworthy (which includes non-compliance with an AD) can be up to 50 penalty units (currently about $12,550) and for a body corporate up to 250 penalty units. More serious breaches, where the operator knowingly allows an unsafe aircraft to fly, could attract criminal charges.

Enforcement is typically conducted by CASA’s compliance and enforcement officers. They may carry out ramp checks, review maintenance records during audits, or investigate incidents. If a non-compliance is found, CASA can issue a direction to ground the aircraft, suspend or cancel the airworthiness certificate, impose a fine, or in extreme cases prosecute. For an AD that requires multiple separate actions, each uncorrected defect could arguably be a separate breach.

The practical risk for operators is that non-compliance may not be immediately detected, but if a defect later arises that is traceable to an unaddressed DGAC AD, the operator’s liability could be substantial, especially if the defect causes an accident. Insurance policies typically require compliance with all applicable ADs; failure to comply could void coverage.

CASA also has the power to issue an AD under CASR Part 39 that is immediately effective for urgent safety issues, but this AD is not urgent; it allows 30 days and 12 months. Nonetheless, once the deadline passes, the obligation is absolute.

This AD operates within the hierarchy of Australian airworthiness law. The ultimate source of authority is the Civil Aviation Act 1988, which empowers the making of regulations. CASR Part 39 specifically governs the issuance, amendment, and compliance of ADs. This AD is therefore a legislative instrument that sits alongside other ADs and airworthiness bulletins.

It interacts with other CASA ADs for the SA 315B. The AD notes that this is Amendment 1 to AD/SA 315/9, implying there were earlier versions and perhaps a series of AD/SA 315 numbers. An operator must comply with all current ADs, not just this one. The AD does not supersede any other AD unless it explicitly says so, which it does not.

The AD also interacts with the original DGAC ADs themselves. Those French directives are not automatically law in Australia until adopted by CASA. This AD is the mechanism that gives them force. However, the operator must obtain the DGAC text to know what to do. The DGAC ADs may have been amended by the French authority since their original issue; the Australian AD references specific numbers and revision markers (e.g., “R1”, “(b)”), so the operator must use exactly the version cited.

It interacts with CASR Part 42 (continuing airworthiness) and Part 145 (maintenance organisations). The record of compliance with this AD must be maintained as part of the continuing airworthiness records. An AMO performing the work must have the DGAC ADs available and the capability to accomplish them.

Finally, it interacts with the Australian Consumer Law if a helicopter is sold with a representation of being airworthy but has not complied. That could give rise to liability under the Australian Consumer Law for misleading conduct or breach of guarantee, separate from the CASA enforcement.

The source provides a partial amendment history. The original issue of AD/SA 315/9 became effective on 23 November 2006. This amendment (Amdt 1) becomes effective on 30 August 2007. The text of the amendment states that it corrects an error in the title of DGAC AD 84-099-028(b) R1 (previously labelled incorrectly) and adds two new DGAC ADs to the Table: AD 84-084-027(b) R1 (Tail Rotor Pitch Control Rod) and AD F-2004-198 (Tail Rotor Main Gear Box).

The effect of the amendment is to expand the list of adopted DGAC ADs from 13 to 15, and to correct the description of one existing entry. Both additions are relatively recent French ADs: F-2004-198 has an original French effective date of 2 July 2005, and 84-084-027(b) R1 has an effective date of 21 December 1991. The source does not explain why CASA omitted them from the original issue. It may have been an oversight or they may have been identified as applicable only after further review of the French AD database.

There is no mention of any further amendments. However, because the AD is a living instrument that may be updated again as CASA identifies additional DGAC ADs or as the French authority issues new ones, operators should monitor CASA’s website for future amendments. The current AD only covers ADs up to 2005; it does not purport to be exhaustive for all time.

The source text does not refer to any litigation concerning this AD or the underlying DGAC ADs. No court cases are cited. That does not mean no challenges have occurred; it simply means the published instrument does not mention any. Airworthiness directives are generally administrative decisions that can be judicially reviewed for procedural fairness or error of law, but the threshold for overturning a safety directive is high because courts defer to technical expertise.

In the broader context, there have been occasional challenges to CASA ADs in Australia, but they are rare and usually fail unless the authority acted beyond power or without proper consultation. Given that this AD merely incorporates French directives that were already issued by the state of design, a challenge would be difficult.

The practical litigation risk for operators is not that the AD itself will be challenged, but that non-compliance could lead to enforcement action by CASA, which might result in litigation over penalties. There is also the potential for civil liability if an accident occurs and non-compliance is alleged. But the source provides no case law or tribunal decisions.

Short 30-day determination window. The AD requires the operator to determine applicability within 30 days of the effective date. For an operator who is away from base, who has incomplete records, or who must physically inspect the helicopter to check part numbers, this is a tight timeframe. If an operator fails to make a determination, the default may be that the AD is considered applicable, increasing compliance burden.

Language and access to DGAC texts. The AD does not provide the text of the DGAC ADs. The operator must source them, possibly from French authorities. While many are available in English, some older ADs may exist only in French. Misinterpreting a requirement could lead to non-compliance. Additionally, the AD cites ADs with suffixes such as “(b)” and “R1”. An operator must ensure they have the exact revision; using an earlier revision could mean missing changes or relying on superseded requirements.

Age of the DGAC ADs. The earliest AD in Table 1 is from 1971. For a helicopter built in that era or with original parts, some ADs may have been accomplished decades ago, but the operator must still confirm it. If an AD requires a life-limited part that was replaced long ago, the operator must show that the replacement complied with the AD. Records older than 30 years may be lost or incomplete, making verification extremely difficult.

Risk of double counting. Some DGAC ADs cover similar topics (e.g., two ADs titled “Main Gearboxes” - 72-152-4 and 84-099-028(b) R1). An operator might think that complying with one covers the other, but the AD requires compliance with all that are applicable. The titles are generic and the operator must read the actual content.

No grace for previously unaccomplished ADs with expired dates. The DGAC ADs originally had compliance dates that have passed. The Australian AD gives a new 12-month period, but if an operator misses that window, the helicopter is non-compliant and cannot be flown. There is no further extension built into the instrument.

Record-keeping burden. The determination of applicability for 15 ADs must be documented. If CASA later audits, the operator must be able to produce that documentation. A verbal “I checked” is insufficient.

Interaction with other ADs. This AD does not consolidate all previous SA 315B requirements. The operator must also comply with other AD/SA 315 series directives and any CASA ADs applicable to general components. Missing one could ground the aircraft.

Given the source, compliance requires a methodical approach. The operator should start immediately on the effective date (30 August 2007) with the 30-day clock ticking.

Step 1: Obtain the list. Download or source the AD/SA 315/9 Amdt 1 text including Table 1. Make a copy for each helicopter in the fleet.

Step 2: Gather the DGAC ADs. For each of the 15 AD numbers, obtain the official DGAC text. Sources include the French civil aviation authority website (DGAC or EASA for later ones) or through the helicopter manufacturer’s technical support. Ensure you have the exact revision cited (e.g., “(b)” or “R1”).

Step 3: Review the aircraft records. Collect all maintenance logs, modification authorisations, service bulletin sheets, and previous AD compliance records for the helicopter. For each DGAC AD, determine:

• Is the AD applicable based on the effectivity (e.g., certain serial numbers or part numbers)?
• If applicable, has the AD been accomplished previously? Look for logbook entries, engineering orders, or certifications from approved persons.
• Document the determination for each AD in writing, even if not applicable. State the reason (e.g., “part not fitted” or “AD previously complied with on dd/mm/yy”).

Step 4: Within 30 days. Complete Step 3 within 30 days. Keep the determination record in the aircraft continuing airworthiness record system.

Step 5: Plan the work. For any DGAC AD that is applicable and not yet accomplished, obtain the necessary parts, tooling, and instructions. Schedule the work with an AMO capable of performing the task. Note that some ADs require life-replacement of parts; if the part has already exceeded the life limit (because the original compliance date has passed), the helicopter may already be non-compliant and must not be flown until the part is replaced. The 12-month window is to complete the work, but if life limits have been exceeded, immediate grounding is necessary. The AD does not say so explicitly, but the underlying part life is the requirement.

Step 6: Accomplish and sign off. Have the work performed and signed off by an appropriately authorised LAME. Enter a reference to the specific DGAC AD number and revision in the logbook. Example: “AD/SA 315/9 Amdt 1: DGAC AD 71-42-1 accomplished per instructions. Main rotor hub inspected and found within limits.”

Step 7: Keep proof. Retain copies of all DGAC ADs used, the determination record, and the logbook entries. This documentation should travel with the helicopter or be accessible for CASA inspection.

Step 8: Monitor for future amendments. CASA may issue further amendments adding more DGAC ADs. Stay subscribed to CASA’s AD notifications. Also, the French authority may issue new ADs for the SA 315B; although not automatically effective in Australia, CASA may adopt them later.

The cost of compliance varies widely. Many DGAC ADs are likely already compiled with if the helicopter has been maintained to original manufacturer standards. The biggest cost is the time to locate records and the DGAC texts. For a helicopter that has not had the “A” frames inspected (AD 83-084-025(b) R1) or the intermediate bearing assembly replaced, the cost of parts and labour could be substantial. The operator must weigh this against the value of the aircraft. In some cases, the economic life of a 30-year-old Lama may be marginal, and the cost of compliance could be disproportionate. However, there is no regulatory relief for cost burden; the AD must be complied with before the helicopter can be operated.