{"id":"F2006B02223","name":"AD/AE 3007/2 - Full Authority Digital Engine Control","slug":"ad-ae-3007-2-full-authority-digital-engine-control","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41453,"registerId":"commonwealth-F2006B02223-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nRolls Royce (Allison) Turbine Engines \\- AE 3007 Series","sortOrder":0},{"sectionNumber":"AD/AE 3007/2 Full Authority Digital Engi","sectionType":"part","heading":"AD/AE 3007/2 Full Authority Digital Engine Control 9/2004","content":"# AD/AE 3007/2 Full Authority Digital Engine Control 9/2004\n\nApplicability: Allison Engine Company Models AE 3007A, AE 3007A1/1, AE 3007A1/2, AE 3007A1, AE 3007A1/3, AE 3007A1P, AE 3007A3, and AE 3007C turbofan engines with full authority digital electronic controls (FADEC).\n\nNote 1: These engines are installed on, but not limited to, Embraer Model EMB-145, EMB-145ER, EMB-145MR, EMB-145LR, EMB-135ER, EMB-135LR and Cessna 750\n\naeroplanes.\n\nRequirement: A FADEC that has a hardware serial number listed below may not be installed on any engine unless the FADEC hardware has been modified using Rolls-Royce (RR) Service Bulletin (SB) AE 3007A-73-042, Revision 1, dated 23 August 2000 or RR SB AE 3007C-73-024, Revision 1, dated 23 August 2000, as applicable, and the modification tag on the FADEC is marked with TR1 day/month. (For example, a repair that was accomplished on 25 September 2000 will show as TR1 25/09.)\n\n| Engine Model            |            | FADEC Hardware Serial Number                                                                                                                                                                                                                             |\n| ----------------------- | ---------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| AE 3007C                |            | BX55758, BX55760, BX55761, BX55763 through BX55765, BX55767,and BX61001 through BX61069                                                                                                                                                                  |\n| AE 3007A                | AE 3007A1  | BX56348, BX56361 through BX56364,                                                                                                                                                                                                                        |\n| AE 3007A1/1             | AE 3007A1P | BX56374, BX56376, BX56392 through                                                                                                                                                                                                                        |\n| AE 3007A1/2 AE 3007A1/3 | AE 3007A3  | BX56395, BX59006, BX59007, BX59013, BX59014, BX59041, BX59050, BX59062, BX59064 through BX59066, BX59075 through BX59078, BX60000 through BX60145, BX60172through BX60239, BX60265 through BX60287, BX60301, BX60303,BX60311 and BX60381 through BX60384 |\n\nNote2: FAA AD 2000-18-06 Amdt 39-11891 refers.\n\nCompliance: As of the effective date of this Directive.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive remains narrowly focused on correcting a specific unsafe condition in FADEC hardware for defined AE 3007 engine variants. It prescribes a single technical remedy (modification per specified Rolls‑Royce service bulletins and tagging) and immediate compliance. There is no indication the AD expands beyond that safety‑fix purpose or adds unrelated regulatory obligations."},"complexity_factors":["Single‑topic, short airworthiness directive focused on one corrective action (low overall length).","Direct cross‑reference to two Rolls‑Royce Service Bulletins (SB AE 3007A‑73‑042 Rev1 and SB AE 3007C‑73‑024 Rev1 dated 23/08/2000) for the technical fix.","Long list of FADEC hardware serial numbers and number ranges to check against (operational inspection burden).","Immediate compliance required (\"As of the effective date\") — no staged compliance windows.","Requirement for a specific tag format (\"TR1 day/month\") for proof of modification.","Cross‑reference to FAA AD 2000‑18‑06 (external regulatory alignment).","Textual ambiguity risk: some serial‑number entries or ranges appear truncated or incomplete in the published table, increasing implementation uncertainty."],"plain_english_summary":"**What this instrument does (mechanical change)\n\n- It stops certain FADEC (Full Authority Digital Engine Control) units from being installed on AE 3007 series engines unless those FADECs have been physically modified and tagged. (Requirement section.)\n- The modification must be carried out in accordance with Rolls‑Royce Service Bulletin AE 3007A‑73‑042, Revision 1, dated 23 August 2000, or Rolls‑Royce Service Bulletin AE 3007C‑73‑024, Revision 1, dated 23 August 2000, as applicable, and the FADEC must carry a modification tag marked \"TR1 day/month\" (for example, \"TR1 25/09\"). (Requirement section.)\n- The rule takes effect immediately: compliance is required as of the effective date of the Directive. (Compliance section.)\n\nWho is affected\n\n- Aircraft/engine owners and operators who have Allison (Rolls‑Royce) AE 3007 series turbofan engines equipped with FADECs. (Applicability section.)\n- Maintenance organisations and technicians who install, repair or modify FADEC units on those engines.\n- Aircraft types commonly using these engines include Embraer EMB‑145/135 family aeroplanes and the Cessna 750, but the Directive applies to the engine/FADEC combination, not only those airframes. (Note 1.)\n\nWhy it matters (stated purpose and practical effect)\n\n- The Directive is issued to correct an identified unsafe condition in certain FADEC hardware. (Background/Requirement sections; Note 2 cross‑refers to FAA AD 2000‑18‑06.)\n- Mechanically, it forces operators to either have listed FADEC hardware modified per the specified Rolls‑Royce service bulletins and tagged, or to refrain from installing unmodified units. That changes maintenance and sourcing choices for affected engines.\n\nPractical consequences, incentives and costs\n\n- Who pays: The owner/operator pays the direct cost of having an affected FADEC modified (or replaced). Maintenance shops or Rolls‑Royce may charge for carrying out the SB modification. (Requirement section.)\n- Who decides: CASA (the delegate issuing the AD) mandates the rule; Rolls‑Royce provides the technical modification instructions in the cited service bulletins. Operators must follow those instructions to comply. (Requirement section.)\n- Behaviour change: Operators must inspect FADEC hardware serial numbers, ensure any listed units are modified and tagged before installation, and update maintenance records accordingly. This may require scheduling downtime for aircraft and reallocation of maintenance resources.\n- Trade‑offs and opportunity cost: Operators face a choice between (a) paying for the SB modification and accepting aircraft downtime, or (b) procuring a different FADEC unit (if available) or otherwise grounding the aircraft until compliance. Those choices have cost and availability implications.\n- Market effects and concentrated benefits: The requirement channels work to whoever can carry out the SB modification (likely Rolls‑Royce authorised centres). That concentrates demand for modification services on those providers; independent repairers will need to demonstrate capability to perform the SB to compete. (Requirement section.)\n- Compliance burden and implementation risk: Operators must check serial number lists against FADEC units. The AD lists many serial numbers and number ranges (Requirement section). Any ambiguity in serial ranges or transcription errors in the AD may increase inspection time and risk inconsistent compliance. Where supply of modification parts or slots is limited, scheduling delays can impose additional costs.\n- Enforcement and discretion: CASA enforces the AD; the text leaves no procedural discretion — compliance requires completion of the specified SBs and tagging. The AD also cross‑references the FAA AD for context. (Note 2.)\n\nSpecific references you may need\n\n- Applicability: identifies engine models AE 3007A, AE 3007A1/1, AE 3007A1/2, AE 3007A1, AE 3007A1/3, AE 3007A1P, AE 3007A3, and AE 3007C with FADEC. (Applicability section.)\n- Requirement: list of FADEC hardware serial numbers covered and the mandatory SBs and tagging format. (Requirement section; service bulletins cited: RR SB AE 3007A‑73‑042 Rev 1 dated 23 Aug 2000 and RR SB AE 3007C‑73‑024 Rev 1 dated 23 Aug 2000.)\n- Compliance: \"As of the effective date of this Directive.\" (Compliance section.)\n\nNotes on implementation uncertainty\n\n- The AD contains long lists and ranges of serial numbers. Any transcription gaps or truncated ranges in the published table increase the risk that an operator might misidentify an affected unit. Operators should confirm serial numbers directly with Rolls‑Royce technical support or CASA if a listed range appears incomplete. (Requirement section; Note 2 cross‑refers to FAA AD 2000‑18‑06 for additional context.)"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific hardware defect in specific FADEC serial numbers. It has not expanded beyond its initial safety purpose of preventing installation of unmodified defective units."},"complexity_factors":["Single, clear requirement with no nested conditions or exceptions","Only 4 defined terms (FADEC, SB, RR, TR1) used in standard aviation context","Straightforward applicability section limited to specific engine models and serial numbers","No cross-references to other legislation or regulations beyond a single note referencing the parallel FAA directive","Compliance is immediate and unconditional ('as of the effective date')","Tabular format for serial numbers aids readability despite the long list of affected units"],"plain_english_summary":"This CASA Airworthiness Directive bars installation of certain faulty FADEC engine control units on Rolls‑Royce AE 3007A/C engines unless they’ve been repaired per the applicable Rolls‑Royce service bulletin and tagged \"TR1\" with the repair date. It affects operators of Embraer EMB‑135/145 and Cessna 750 (Citation X) aircraft and maintenance organisations. The action is required immediately to address a hardware defect in specific FADEC serial numbers that could create an unsafe condition."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-ae-3007-2-full-authority-digital-engine-control","history":"/api/acts/ad-ae-3007-2-full-authority-digital-engine-control/history","analysis":"/api/acts/ad-ae-3007-2-full-authority-digital-engine-control/analysis","conflicts":"/api/acts/ad-ae-3007-2-full-authority-digital-engine-control/conflicts","importantCases":"/api/acts/ad-ae-3007-2-full-authority-digital-engine-control/important-cases","documents":"/api/acts/ad-ae-3007-2-full-authority-digital-engine-control/documents"}}