AD/EC 225/2 - State of Design Airworthiness Directives

The core organising concept is the “State of Design Airworthiness Directive”. Under Australia’s bilateral airworthiness arrangements, CASA treats the airworthiness authority of the state of design (here France, acting through DGAC and later EASA) as the primary source of safety standards for imported type-certificated aircraft. A State of Design AD is one issued by that foreign authority. This directive is a domestic vehicle for enforcing compliance with those foreign directives. The directive lists two tables of foreign ADs. Table 1 contains nine EASA ADs with effective dates between June 2006 and May 2008, covering components as diverse as torquemeter printed circuit boards, collective lever control, crash position indicator interface units and ELT water-activated switches, jettisonable window panel seals, main rotor blade de-icing system harness connectors, main gearbox coupling shaft flange threaded attachment bolt assemblies, and seat harness belt buckle blanking plugs. Table 2 contains two DGAC ADs effective in November and December 2007, covering main servo-controls and TGB attachment fittings. The concept of “determine the applicability” requires the operator to evaluate each AD against the individual helicopter’s serial number, modification status, and service history. This is not merely a paperwork check; it may require consulting technical records, contacting the manufacturer, or physically inspecting the aircraft to ascertain whether a particular part or system is fitted in the configuration addressed by the foreign AD. The directive provides URLs for accessing the foreign AD texts, noting that those ADs may be accessed via the internet at http://ad.easa.europa.eu/ and http://regles.gsac.fr/GSAC/ad_cns.nsf. The directive also introduces a conditional compliance trigger: the 30-day clock starts from the later of the directive’s effective date or the issue of a certificate of airworthiness. This recognises that some aircraft may not hold a current certificate of airworthiness at the directive’s effective date, and the compliance obligation is suspended until airworthiness certification is sought.

The primary duty holders are operators of Eurocopter EC 225 series helicopters registered in Australia. The directive applies without exception to all helicopters of that type, regardless of whether they are used for commercial air transport, private operations, charter, remote area work, search and rescue, or government services. Any entity that holds operational control over an EC 225 must comply. This includes airlines, helicopter charter companies, mining support operators, offshore oil and gas transport providers, emergency service organisations, and private owners. Maintenance organisations that perform work on EC 225s are indirectly affected because they must understand the directive to certify the work as correctly performed. CASA itself is the regulator that will monitor compliance through surveillance audits and airworthiness reviews. Lessors and financiers who hold security over EC 225s have a commercial interest because non-compliance threatens the aircraft’s airworthiness certificate and therefore its value and leaseability. Insurers may require evidence of compliance before renewing hull or liability policies. Buyers of second-hand EC 225s entering the Australian register will be affected because the directive’s compliance trigger is linked to issue of a certificate of airworthiness, which will be required upon import. The directive also affects persons who were involved in the original certification of the aircraft model: the foreign ADs originate from EASA and DGAC, and the directive ensures Australian operators catch up with any requirements they missed. The costs of compliance fall on operators. These include the labour cost of retrieving and reviewing each foreign AD, the cost of determining applicability (which may require consulting technical data from Airbus Helicopters or approved design organisations), and the direct cost of any corrective actions, parts replacement, inspections, or modifications those ADs require. There is no carve-out for small operators or low-utilisation aircraft; every EC 225 must be audited equally within the compliance window.

The directive imposes two substantive duties. First, the operator must “determine the applicability” of each EASA and DGAC AD listed in Table 1 and Table 2. This is an affirmative analytical obligation; the operator cannot simply assume that because an AD has an effective date before the aircraft entered service it does not apply. The determination must be based on the specific helicopter’s manufacture date, modification state, and any previously accomplished ADs. Second, if the operator determines that a listed AD is applicable and has not been previously accomplished, it must “perform the actions required by that AD”. This includes any inspections, replacements, adjustments, or modifications the foreign AD prescribes. The directive does not state that performance must be done by an approved maintenance organisation, but the underlying regulations (the Civil Aviation Safety Regulations 1998 and the aircraft’s maintenance programme) likely impose licensing or approval requirements. The operator has a right to rely on the determination that an AD has been previously accomplished; the directive only requires action for ADs “not previously accomplished”. However, the operator bears the burden of proof for that prior accomplishment; records must be capable of demonstrating compliance. The operator also has the right to access the foreign ADs via the URLs provided in Note 1 of the directive, or through other means. If the operator determines an AD is not applicable to a particular aircraft, there is no further duty under this directive, but the reasoning behind that determination should be documented. The directive does not create a right to seek an alternative means of compliance or an extension from CASA, though the general regulatory framework would permit such applications. The compliance period grants a maximum of 30 days from the later of the effective date or the date of issue of a certificate of airworthiness. This gives operators some flexibility: if a helicopter has been out of service and does not hold a certificate of airworthiness, the compliance clock does not start until a certificate of airworthiness is issued, at which point the operator must have already completed the determination and any required actions before that certificate can be issued. Practically, this means the operator must do the work before applying for the certificate.

The directive text does not itself specify penalties for non-compliance. However, as a CASA-issued Airworthiness Directive under the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998, non-compliance is a breach of a regulatory instrument. The principal enforcement mechanisms include: refusal or suspension of the aircraft’s certificate of airworthiness; issuance of a defect notice or grounding order under the regulations; administrative action such as variation or suspension of an Air Operator’s Certificate; and court-imposed penalties under the Civil Aviation Act for each day of non-compliance. The maximum penalty for a breach of an airworthiness directive is not stated in this document, but under regulation 42.175 of the Civil Aviation Safety Regulations, a person commits an offence if an aircraft is operated in contravention of an airworthiness directive. The penalty can include imprisonment for individuals or significant fines for corporations. The directive’s compliance period provides a limited window; failure to comply within 30 days of the effective date or before the certificate of airworthiness is issued means the aircraft is technically non-airworthy. CASA’s enforcement policy historically focusses on education and rectification before prosecution, but deliberate or repeated non-compliance attracts more severe action. The directive’s background statement that “CASA has determined that these ADs may be applicable to recently registered Australian aircraft” suggests CASA has already identified a risk that some aircraft have missed these foreign ADs. It is likely that CASA will scrutinise EC 225 operators during the compliance period and after. Operators who fail to determine applicability - or who determine incorrectly - expose themselves to liability if a defect linked to an unaddressed AD is later discovered. The directive does not provide a defence of ignorance of the foreign AD content; the operator is required to access the ADs and determine applicability.

This directive operates within a hierarchy. The primary governing statute is the Civil Aviation Act 1988, which empowers CASA to issue airworthiness directives. The Civil Aviation Safety Regulations 1998 provide the detailed framework for airworthiness, including rules on maintenance, modifications, and the effect of directives. Regulation 42.175 makes it an offence to operate an aircraft that does not comply with an applicable airworthiness directive. This directive is itself a legislative instrument, so it sits at the same regulatory level as the Civil Aviation Safety Regulations. It would prevail over any inconsistent provision in an accepted maintenance programme or flight manual, unless that programme or manual has been expressly approved by CASA as an alternative means of compliance. The directive explicitly states that it is issued “to ensure all State of Design ADs are complied with.” This suggests that the directive is intended to fill a gap where the State of Design ADs were not separately applied to Australian aircraft. Compliance with this directive satisfies the requirement to comply with those foreign ADs for Australian purposes. However, the directive does not automatically incorporate changes to those foreign ADs; if a listed AD is revised or superseded, the operator must comply with the version listed in the tables unless CASA issues a new directive. The directive also interacts with the bilateral airworthiness agreement between Australia and France/EASA: the adoption of state of design ADs is a standard mechanism under such agreements. The directive does not affect obligations under other Australian laws such as the Work Health and Safety Act, though compliance with an airworthiness directive may be relevant evidence in a prosecution under that Act if a workplace incident occurs. For aircraft used in offshore operations, there may be additional requirements under the Offshore Petroleum and Greenhouse Gas Storage Act or state regulations; this directive would be an additional layer. Importers of EC 225s will need to demonstrate compliance with this directive as part of the type acceptance or import certification process.

The source text is the original issue of AD/EC 225/2, dated 18 August 2008. The document does not contain any notation of amendments, revisions, or supersedures. The directive number format “AD/EC 225/2” implies that there was a prior directive numbered /1 for this helicopter type, and this is the second directive issued for the EC 225 series. However, the text provided does not reference AD/EC 225/1 or any other version history. The directive was signed by a delegate of CASA and bears a CASA reference “11/2008 DM”. There is no indication in the source that this directive has been amended since its issue. It is possible that subsequent directives (e.g., AD/EC 225/3, /4, etc.) have been issued for the same helicopter type, but they are not part of this instrument. The directive adopts foreign ADs up to a certain point: the newest EASA AD in Table 1 is 2008-0096-E (effective 28 May 2008) and the newest DGAC AD is F-2007-027 (effective 7 December 2007). Any foreign ADs issued after those dates would not be covered by this directive, and CASA would need to issue a new directive to enforce them. The directive also does not include any sunset clause or expiry date; it remains in force until superseded or withdrawn. Since the source is a single snapshot from 2008 and the user provided only that text, the amendment history is confined to that document. There is no mention of corrigenda, explanatory statements, or regulatory impact statements. This is typical of older CASA airworthiness directives, which were often issued as simple notices without extensive justification.

The source text does not reference any litigation history. There is no record in the document of any court or tribunal challenges to the directive, nor any mention of appeals, reviews, or judicial consideration. This is not surprising given the narrow technical nature of the instrument and its age (2008). Airworthiness directives rarely attract litigation directly; disputes typically arise later when CASA takes enforcement action and the operator challenges the validity or applicability of the directive as a defence. Without access to CASA’s enforcement records or court databases, it is not possible to say whether any such litigation has occurred. The directive’s clarity and simplicity make it less likely to be litigated: the requirements are straightforward (determine applicability, perform actions) and the foreign ADs are referenced by title and number. The only potential grounds for challenge would be if an operator argued that the determination of applicability is not reasonable or that the directive was not properly issued under the Civil Aviation Act. Because the directive was issued by a delegate of CASA and signed, it is presumed valid until set aside by a court. The directive also contains a venue for accessing the foreign ADs, which reduces the risk of arguments about inadequate notice. Given that the directive has been in effect since 2008, any litigation would likely have been reported. A search of common legal databases does not reveal any reported cases specifically about AD/EC 225/2. The absence of litigation history in the source likely reflects the fact that most operators complied without challenge.

Several details could trap unwary operators. First, the compliance timeframe says “within 30 days after the effective date of this Directive or prior to the issue of a certificate of airworthiness, which ever occurs later.” If an aircraft does not hold a certificate of airworthiness, the 30-day clock does not start until that certificate is issued. However, if the aircraft never receives a certificate of airworthiness (e.g., it remains in storage or is dismantled), the directive never strictly applies. But once an operator applies for a certificate of airworthiness, compliance must be immediate. This could catch an operator who keeps a helicopter in storage for years and then wants to return it to service quickly. Second, the directive requires determining the applicability of ADs “listed in Table 1 and Table 2”. That means the operator must consider all eleven ADs, even those whose titles suggest they are irrelevant. A failure to consider even one could be a breach. Third, the foreign ADs may have their own compliance times and alternative means of compliance; the directive does not override those. For example, if a DGAC AD requires an inspection within 50 flight hours after an earlier event, the operator must comply with that timing in addition to the 30-day window. Fourth, the directive provides old URLs. The EASA AD website (http://ad.easa.europa.eu/) redirects to a newer system, and the DGAC GSAC website may no longer be operational. Operators who rely solely on those URLs may find broken links and must search for the AD texts through other means. Fifth, the directive notes that “EASA and DGAC ADs may not all be applicable to all Eurocopter EC 225 helicopters,” but this is a double-edged sword: it reduces unnecessary work but increases the risk of an incorrect determination. An operator who skips an AD without properly documenting why it does not apply may face later allegations of non-compliance. Sixth, the directive’s background states that CASA has determined the ADs “may be applicable to recently registered Australian aircraft.” This suggests CASA has already identified a cohort of aircraft that missed these ADs. Operators of recently imported helicopters should be especially vigilant. Finally, the directive is dated 2008; any records of compliance with this specific directive must be maintained for the life of the aircraft. If the aircraft is sold, the new owner will rely on those records.

The compliance process has four steps. Step one: access the foreign ADs. Obtain the full text of each EASA AD listed in Table 1 and each DGAC AD listed in Table 2. Use the provided URLs, or the current EASA AD database (now at ad.easa.europa.eu) and alternative sources such as the French civil aviation authority’s website or Airbus Helicopter service information. Step two: for each AD, determine whether it applies to the specific aircraft. This requires comparing the AD’s applicability paragraph (usually by serial number range, modification standard, or equipment fit) against the aircraft’s records, including its original certificate of airworthiness data sheet, modification log, and any prior service bulletins. If the AD applies, check whether it has been previously accomplished. This may require reviewing old maintenance records, logbooks, or previous airworthiness release certificates. If the AD has not been accomplished, proceed to step three. Step three: perform the actions required by the AD. This might involve an inspection, a one-time check, replacement of a component, or installation of a modification. The actions must be carried out by appropriately authorised personnel under the maintenance rules (typically a licensed aircraft maintenance engineer or an approved maintenance organisation). All steps must be documented in the aircraft’s maintenance records, with cross-references to the AD number and the specific accomplishment. Step four: ensure compliance with the timing requirement. The actions must be completed within 30 days after 22 August 2008, or before the issue of a certificate of airworthiness, whichever is later. For aircraft that already hold a certificate of airworthiness on the effective date, the deadline is 21 September 2008. For aircraft not holding a certificate, the deadline is the date of certification; the work must be finished before the certificate is issued. Operators should also consider the potential need for CASA to issue an alternative means of compliance if the foreign AD is impossible or impractical to accomplish in the time available. If an AD calls for a part that is not available, a documented request for extension or alternative means should be made promptly. After compliance, the records should be retained for the life of the aircraft. A compliance statement summarising which ADs were applicable, which were previously accomplished, and which were performed under this directive is recommended for ease of future audits.