AD/PREMIER/1 - State of Design Airworthiness Directives

Airworthiness Directive (AD). An airworthiness directive is a mandatory regulatory instrument issued to correct an unsafe condition found to exist in a type‑design or in an individual aircraft. Under the Civil Aviation Act 1988 and the Civil Aviation Regulations, failure to comply with an AD renders the aircraft unairworthy and the operator liable to enforcement action. AD/PREMIER/1 is a “state of design” directive, meaning it adopts requirements originating from the national aviation authority that issued the original type certificate for the aircraft - in this case, the FAA. The concept of a “state of design” AD is important because it prevents a regulatory gap where foreign‑issued ADs are not automatically binding on Australian‑registered aircraft. Without this directive, an imported Premier 1 might have no legal obligation to comply with FAA ADs that were issued before the aircraft was placed on the Australian register. CASA uses the state‑of‑design mechanism to incorporate those foreign ADs by reference, creating a domestic legal obligation.

Table 1. The core mechanism of the directive is a table listing seven specific FAA ADs, each identified by its unique AD number, its effective date, and a short title describing the subject. The table acts as a schedule of requirements. The operator must check each AD against the aircraft’s records to see whether the AD was ever complied with. Because the FAA ADs have descriptive titles - such as “Inboard Fuel Probe Mounting Brackets” or “Rudder Pedal Arm Assemblies” - the operator can quickly identify which systems or components are involved. However, the titles are not a substitute for reading the full AD text, which contains the detailed inspection procedures, parts, and compliance times.

Terminating action. The background section of the directive notes that some of the FAA ADs require “multiple inspection/actions until a terminating action has been applied.” This is a recurring concept in airworthiness directives: a repetitive inspection is required until a permanent fix (terminating action) is performed, after which the inspection interval no longer applies. For example, an AD might require an inspection of a bracket every 100 hours until a modified bracket is installed. Once the modification is done, the inspection requirement ends. The operator must therefore know not only whether an AD was ever started, but whether the terminating action has been completed.

Compliance period. The directive imposes a single compliance period for all requirements: 30 days after the effective date of the directive (17 October 2007) or prior to the issue of a Certificate of Airworthiness, whichever occurs first. This is an unusual feature because it lumps multiple unrelated ADs into a single deadline. In contrast, each FAA AD would have had its own compliance schedule. The directive effectively overrides those individual schedules for aircraft that are not yet in compliance. Once the initial compliance deadline passes, the recurring actions (if any) specified in the underlying FAA ADs will govern future compliance.

The directive applies directly to any person who owns, operates, or maintains a Model 390 Premier 1 aeroplane that is registered in Australia or that is being placed on the Australian register. Because the compliance deadline is triggered by the “issue of a Certificate of Airworthiness, whichever occurs first,” the directive has a particularly strong effect on aircraft that are not currently airworthy. An aircraft that has been imported but has not yet been issued an Australian Certificate of Airworthiness must have all applicable FAA ADs accomplished before that certificate is issued. This can add significant time and cost to the importation process. For an aircraft that already holds a Certificate of Airworthiness and is in service, the operator has 30 days from 17 October 2007 to verify and, if necessary, perform the required work. That is a short window for a maintenance organisation that may need to order parts, schedule hangar space, or obtain specialist tooling. The directive also affects maintenance organisations, approved persons, and licensed aircraft maintenance engineers (LAMEs) who are responsible for certifying the work. They must be familiar with the text of each FAA AD and ensure that the actions are carried out correctly. The cost of compliance falls ultimately on the owner or operator, either through direct maintenance bills or through increased insurance premiums if the aircraft is grounded pending compliance. The directive has no affect on other models of Hawker Beechcraft aeroplanes - it is strictly limited to the Model 390 Premier 1. It also has no direct effect on parts suppliers or manufacturers, though those entities may benefit from increased demand for the parts or modifications called for by the FAA ADs. From a competition perspective, the directive imposes a uniform compliance burden on all Australian Premier 1 operators. There is no exemption for small operators or private owners; the obligation is absolute. This can create a disproportionate compliance cost relative to the value of the aircraft, especially for older or lower‑utilised airframes. For an owner who flies infrequently, the 30‑day clock runs from the effective date of the directive, not from the next flight, so the aircraft may be grounded for non‑compliance even if it is not flown.

The primary duty is on the operator or the person responsible for the continuing airworthiness of the aircraft to determine the applicability of each FAA AD listed in Table 1. This is not a passive obligation: the person must actively review the aircraft’s maintenance records, logbooks, and modification status to see whether each AD has been complied with and, if not, to what extent. For ADs that involve repetitive inspections, the records must show when the last inspection was performed and whether a terminating action has been applied. If any FAA AD is found to be applicable and not fully accomplished, the person must perform the actions required by that FAA AD. Those actions are not set out in AD/PREMIER/1 itself; the operator must obtain the full text of each FAA AD from the FAA’s regulatory website (the URL is provided in the directive). This creates a secondary burden of locating, reading, and understanding each AD, which may require technical knowledge or the assistance of a licensed engineer. The directive does not grant any right to extend the 30‑day compliance period. It does not provide for alternative means of compliance (AMOC) unless such an AMOC is already embedded in the FAA AD. CASA may, under its general powers, grant an extension or exemption, but the directive itself says nothing about that process. The operator has the right, however, to decide the order in which the ADs are addressed, provided all are completed by the deadline. There is also an implicit right to rely on previous compliance: if the records show that an FAA AD was accomplished before the aircraft entered the Australian register, the operator need not repeat the work, but must be able to prove that fact to CASA or an authorised person. The operator does not have the right to choose a different method of compliance than that specified in the FAA AD. The directive is legally binding, and any deviation would require CASA approval. For aircraft that have been in Australia for some time under a previous operator, the current operator may face difficulties tracing compliance history. The directive places no duty on a former operator to provide records, so the current operator may have to recreate the compliance history through engineering assessments or by repeating the AD actions to be safe.

The text of AD/PREMIER/1 does not itself prescribe penalties. Enforcement flows from the broader regulatory framework. Under the Civil Aviation Act 1988 and the Civil Aviation Regulations, an airworthiness directive is a legislative instrument, and failure to comply with its requirements means the aircraft is not airworthy. Operating an aircraft that is not airworthy is an offence under regulation 42 of the Civil Aviation Regulations 1988 (subject to later amendments), and can attract penalties that may include fines and, in serious cases, imprisonment. In practice, CASA’s enforcement approach for non‑compliance with ADs typically begins with a notice of proposed action, followed by a direction to ground the aircraft, and potentially an infringement notice or a prosecution. The directive’s own enforcement mechanism is indirect: the Certificate of Airworthiness cannot be issued until all applicable requirements are met. That gives the directive a strong gate‑keeping effect for imported aircraft. For aircraft already holding a Certificate of Airworthiness, the operator is expected to self‑declare compliance during routine maintenance and when the certificate is renewed. If CASA discovers non‑compliance during a ramp check or an audit, the enforcement consequences can include revocation or suspension of the certificate, grounding orders, and civil penalties. The operator bears the burden of proof of compliance, and the on‑the‑ground reality is that a maintenance release or certificate of compliance signed by an authorised person is the primary evidence. CASA may also take action against the certifying engineer or the approved maintenance organisation if the non‑compliance is found to be due to negligence or falsification. Because the directive is a state of design directive that incorporates foreign ADs, an operator cannot argue they were unaware of the requirement. The FAA ADs are publicly available and the directive specifically provides the website to access them. The cost of enforcement falls on the taxpayer through CASA’s budget, but the cost of compliance and the risk of enforcement fall entirely on the private operator.

AD/PREMIER/1 operates as a standalone legislative instrument under the Civil Aviation Act 1988. It is not a regulation or a standard, but it has the same binding effect. It interacts with other CASA‑issued airworthiness directives that relate to the Model 390 Premier 1 - for example, any later CASA AD that also covers this aircraft type must be complied with in addition to this directive. The directive does not supersede or repeal any other ADs. It also interacts with the Civil Aviation Regulations, particularly regulation 42A (maintenance of aircraft) and regulation 43 (airworthiness). Compliance with this AD is a necessary part of complying with those regulations. The directive also incorporates by reference the FAA ADs listed in Table 1. Those FAA ADs are not automatically law in Australia; they become law only through the operation of this CASA directive. However, once incorporated, the full content of each FAA AD becomes mandatory, including any compliance times, inspection intervals, parts specifications, and reporting requirements. If an FAA AD itself references other documents (e.g., Raytheon service bulletins), those documents also become mandatory through the chain of incorporation. This can create a cascade of obligations that the operator must trace. The directive also interacts with the bilateral airworthiness agreement between Australia and the United States. The existence of that agreement is why CASA is willing to adopt FAA ADs without re‑issuing them as independent Australian technical requirements. Operators should also be aware that the directive does not affect the operator’s obligations under the Occupational Health and Safety Act or workplace safety laws, though those laws may impose additional duties on persons conducting the maintenance work. From a contract law perspective, the directive may affect lease agreements, purchase agreements, or insurance policies, which often require that the aircraft be maintained in compliance with all applicable airworthiness directives. A breach of this directive could therefore also constitute a breach of contract or void insurance coverage.

AD/PREMIER/1 is a single directive issued on 10 October 2007 by David Punshon, a delegate of CASA, and became effective on 17 October 2007. The source text provided does not indicate any amendments or supersedures. There is no mention of an earlier version or a subsequent variation. Because the directive uses the simple format of a table listing FAA ADs, it is possible that CASA has issued later directives that supersede or add to this one, but the source does not disclose them. In Australian practice, an airworthiness directive remains in force until it is explicitly withdrawn or superseded by another directive. The absence of amendment history in the source means that, as far as this document is concerned, the operator must treat the directive as current and binding from its effective date onward. However, it is important to note that the underlying FAA ADs themselves may have been amended, superseded, or withdrawn by the FAA after 2007. AD/PREMIER/1 does not incorporate future amendments to those FAA ADs; it fixes the version that existed at the time the directive was made. An operator who relies on a later FAA version could be doing work that the Australian directive does not require, or could be missing a later version that CASA has separately adopted. This rigidity is a potential trap. The operator should check not only this CASA directive but also any later CASA ADs that may update the reference list. The source does not provide an amendment history for the directive itself, so this commentary is necessarily limited to what the source shows: a single effective date and no supersedure information.

The source text does not refer to any litigation or court decisions involving AD/PREMIER/1. This is unsurprising; airworthiness directives are technical regulatory instruments that rarely generate standalone litigation. When disputes do arise, they typically occur in the context of enforcement proceedings or civil liability claims after an accident. An operator who challenges the validity of an AD would need to show that CASA acted beyond its power or that the directive was procedurally invalid. No such case is recorded in the source. Likewise, there is no mention of any industry appeal or internal review of this directive. The absence of litigation history should not be taken as evidence that the directive is uncontroversial; it may simply reflect the high cost and difficulty of challenging a CASA instrument. The directive itself is clear and does not delegate discretion, so the grounds for a legal challenge would be narrow. In the broader context of Australian aviation law, there have been occasional cases on the enforceability of airworthiness directives and on the standard of care for maintenance providers, but none of them are cited in this source. The analyst should therefore treat litigation history as a blank field for this specific directive. If a lawyer or compliance professional is researching this area, they would need to search for decisions under the Administrative Appeals Tribunal or the Federal Court involving CASA’s exercise of its powers to issue ADs, but those would be general background rather than case law on this particular instrument.

Several features of this directive can catch an unwary operator or compliance officer. First, the compliance deadline is not a single date for everyone. The directive says compliance must be within 30 days after the effective date (17 October 2007) or “prior to the issue of a Certificate of Airworthiness, whichever occurs first.” For an aircraft that does not hold a Certificate of Airworthiness at the time the directive becomes effective - for example, an imported aircraft still in the registration process - the deadline becomes the day CASA issues the certificate, not the 30‑day period. This can be much shorter than 30 days if the certificate is issued quickly. Conversely, if the certificate is never issued, the directive’s requirements still apply and the aircraft cannot be flown. Second, the directive requires the operator to “determine the applicability” of each FAA AD. This is an active obligation, not a passive one. An operator who simply assumes that an older aircraft must have already complied with an AD or that a particular AD is not relevant runs a significant enforcement risk. The operator must actually check. Third, the directive does not provide a grace period for repetitive inspections. If an FAA AD requires an inspection every 100 hours, and the operator had not performed that inspection before the directive took effect, the 30‑day clock starts running even if the hours have not been flown. The aircraft could therefore be grounded even if it is still within the hours limit of the FAA AD. Fourth, the directive makes no distinction between private operators and commercial operators. A part‑time owner who flies infrequently bears the same compliance burden as a large charter company. Fifth, the directive does not list the full text of the FAA ADs. The operator must locate each AD on the FAA website. If an FAA AD has been withdrawn or superseded, the operator may find a different version than the one referenced. Because the directive “locks in” the version of the FAA AD as it existed at the time the directive was made, using a later version could lead to performing work that is not actually required, or missing a requirement that was in the original version. Sixth, the directive’s background notes that “CASA appreciates that, due to date of aircraft manufacture or aircraft configuration and modification status, not all the ADs listed in Table 1 will be applicable to all Model 390 aeroplanes.” This statement is not a defence. The operator must still go through the determination process and keep records to show why a particular AD is not applicable. A simple assertion of non‑applicability without supporting evidence may be rejected. Seventh, the directive includes a note that the FAA type certificate was previously held by Raytheon Aircraft Company. This matters because some early‑production aircraft may have been delivered under a different type certificate holder, and the service documentation may be labelled differently. The operator must ensure they are looking at the correct type‑specific ADs.

Compliance with AD/PREMIER/1 involves a structured process that should be documented meticulously. Step one is to read the directive itself and understand the compliance deadline. For an aircraft that already holds a Certificate of Airworthiness, the deadline is 16 November 2007 (30 days after 17 October 2007). For an aircraft without a current certificate, the deadline is the date of issue of that certificate, so the work must be done before the certificate application is submitted. Step two is to obtain the full text of each of the seven FAA ADs listed in Table 1. The directive provides the FAA website URL, but operators may also obtain them from commercial databases or from the aircraft manufacturer. Step three is to create a compliance matrix that lists each FAA AD number, its title, its effective date, and the specific actions it requires. The matrix should also include a column for the aircraft’s serial number, current configuration, and modification status. Step four is to review the aircraft’s maintenance records and logbooks to determine whether each AD has been complied with. For ADs requiring a one‑time action, look for a sign‑off that references the AD number and the date of accomplishment. For ADs with repetitive inspections, look for the most recent inspection entry and confirm whether a terminating action has been completed. If a terminating action is recorded, no further inspections are required. Step five is to identify any gaps. If an AD has not been complied with, the operator must arrange for the required action. This may involve ordering parts, scheduling the aircraft into a maintenance facility, and having the work certified by an authorised engineer. The work must be done in accordance with the instructions in the FAA AD; alternative methods require CASA approval. Step six is to document the compliance. Each FAA AD that is found to be applicable and accomplished should be recorded in the aircraft’s continuing airworthiness record with a reference to the AD number, the date of accomplishment, and the identity of the certifier. For ADs that are found not to be applicable, the operator should still create a record explaining the basis for that determination (e.g., “aircraft serial number falls outside the AD’s applicability range” or “AD addressed by manufacturer service bulletin TBD, incorporated at manufacture”). Step seven is to ensure that future compliance with any repetitive inspections in the FAA ADs is integrated into the aircraft’s scheduled maintenance program. Once the initial work is done, the ongoing obligation is to follow the intervals set by the FAA ADs. Step eight is to retain all records for the period required by the regulations (typically the life of the aircraft). Non‑compliance is easier to prove for CASA if the operator has poor records, so thorough documentation is the best defence. Step nine is to monitor for any subsequent CASA directives that may amend or add to AD/PREMIER/1. Because the directive was issued in 2007, it is likely that later directives have been issued for the same aircraft type, and the operator must comply with all current directives, not just this one. Step ten: if in doubt about the applicability of any FAA AD or the interpretation of its requirements, seek advice from the aircraft manufacturer, an approved maintenance organisation, or CASA’s airworthiness section. The cost of a phone call or a written request for a ruling is small compared to the cost of grounding an aircraft or facing an enforcement action.