{"id":"F2005L00593","name":"AD/CON/83 - TCM Engines Last Overhauled by Provence Aero Maintenance France","slug":"ad-con-83-tcm-engines-last-overhauled-by-provence-aero-maintenance-france","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":112845,"registerId":"commonwealth-F2005L00593-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Teledyne Continental Motors Piston Engin","sectionType":"division","heading":"Teledyne Continental Motors Piston Engines","content":"### Teledyne Continental Motors Piston Engines\n\n| AD/CON/83 | TCM Engines Last Overhauled by Provence Aero Maintenance France | 4/2005 |\n| --------- | --------------------------------------------------------------- | ------ |\n\n| Applicability: | All Teledyne Continental Motors (TCM) piston engines, last overhauled on or after 01 October 1997 by Provence Aéro Maintenance, France; and,All engine parts for TCM piston engines released on or after 01 October 1997 by Provence Aéro Maintenance, France.Note 1: Provence Aéro Maintenance has been operating at the following two addresses:13728 Marignane, France.Route des Cravons, 13130 Berre l'Etang, France.                                                                                                                                                                                                          |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Submit the following information to DGAC SFACT / N.ME on Fax Number 0011-33-1-5809-4319 and obtain the last date for conformity inspection and serviceability restoration.(a) JAA Form 1 copy,(b) Flight hours since last overhaul,(c) Details of maintenance done since last overhaul,(d) Details on significant maintenance actions, findings of improperly performed work and steps taken for restoration, if any.2. Send engine(s) and engine part(s) to CASA approved engine overhaul shop for conformity inspection and restoration.Note 2: French DGAC Airworthiness Directive F-2005-023 dated 02 February 2005 refers. |\n\n| Compliance: | 1. Unless already accomplished, with in 30 days after the effective date of this AD.2. As per date advised by French DGAC or 90 days after the effective date of this AD, whichever is later.If no response is received from DGAC with in 30 days of complying with the requirement 1 of this Directive, contact CASA on Fax 02-62171442 or email airworthiness.directives@casa.gov.au and provide all the information specified in requirement 1.                                                                                                                                                                                                                                                                                                                                                                                             |\n| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | This Airworthiness Directive becomes effective on 14 April 2005.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |\n| Background: | Investigation of an engine failure, involving a failed crankcase, at a low engine life of 192 flight hours since last overhaul, revealed improperly assembled crankshaft counterweight bearing. Numerous other non-conformities were apparent too, like use of non-conforming crankcase bolts and rod bolts, missing nuts and improperly installed clips.This engine was overhauled by Provence Aéro Maintenance, France on 18 November 1998. As a result of these findings, French DGAC cancelled JAR 145 approval for Provence Aéro Maintenance.There is no guarantee that other engines overhauled by or engine parts released by Provence Aéro Maintenance will have no similar non-conformities.Non-conformities such as above may affect safety of flight and the actions specified in this AD address that identified unsafe condition. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n4 March 2005","sortOrder":0},{"sectionNumber":"AD/CON/83","sectionType":"part","heading":"AD/CON/83","content":"## AD/CON/83","sortOrder":1},{"sectionNumber":"TCM Engines Last Overhauled by Provence ","sectionType":"part","heading":"TCM Engines Last Overhauled by Provence Aero Maintenance France","content":"## TCM Engines Last Overhauled by Provence Aero Maintenance France","sortOrder":2},{"sectionNumber":"4/2005","sectionType":"part","heading":"4/2005","content":"## 4/2005","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard reactive Airworthiness Directive issued in response to a specific identified safety defect. The scope remains tightly focused on the particular unsafe condition (improper overhaul work by Provence Aéro Maintenance) and has not expanded beyond this original purpose."},"complexity_factors":["Single, specific safety issue with narrow applicability (one specific maintenance provider)","Only 2 main requirements with clear sequential steps","Minimal defined terms (only standard aviation acronyms like DGAC, CASA, JAA Form 1)","No nested exceptions or conditional logic beyond simple date calculations","Short document (approximately 400 words of substantive content)","Clear compliance timeline with straightforward fallback provision (90 days or DGAC date)"],"plain_english_summary":"This Airworthiness Directive is a mandatory safety order for owners of Teledyne Continental Motors piston engines overhauled by Provence Aéro Maintenance on or after 1 October 1997 (and parts released by them). It requires owners to gather records, notify France’s DGAC, and have the engine or parts inspected and repaired by a CASA‑approved overhaul facility within the specified deadlines.\n\nIt matters because improper overhaul led to a crankcase failure and serious in‑flight safety risk."},"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":false,"description":"The AD’s scope matches the stated safety response: it targets TCM piston engines and engine parts last overhauled or released on or after 1 October 1997 by Provence Aéro Maintenance, and imposes record submission plus inspection/restoration. It does not expand beyond addressing the identified non‑conformities described in the Background."},"complexity_factors":["Cross‑jurisdictional reliance on French DGAC correspondence and dates for conformity inspection (Requirement; Compliance)","Technical, safety‑critical inspections and restorations required at CASA‑approved engine overhaul shops (Requirement)","Tight, staged deadlines: 30 days to submit records and up to 90 days for physical actions, with fallback reporting to CASA (Compliance)","Detailed records needed (JAA Form 1, flight hours, maintenance history, significant findings) increasing administrative burden (Requirement)","Scope covers both engines and parts released on/after the specified date, widening traceability efforts (Applicability)","Identification ambiguity from multiple Provence Aéro Maintenance addresses may complicate sourcing and verification (Applicability Note 1)","Source describes specific assembly non‑conformities (failed crankcase, incorrect bolts, missing nuts/clips) requiring corrective work (Background)","No explicit enforcement penalties or remedies stated in the text, leaving practical enforcement discretion to authorities (implicit from text)"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Teledyne Continental Motors piston engines (and engine parts) last overhauled or released on or after 1 October 1997 by Provence Aéro Maintenance (France) to submit overhaul records to the French DGAC and have affected engines/parts inspected and restored at a CASA‑approved overhaul shop. It responds to a discovered crankcase failure and other assembly non‑conformities; owners pay inspection and restoration costs, must meet 30‑ to 90‑day timeframes, and contact CASA if DGAC does not reply (Requirement; Compliance; Background)."},"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-con-83-tcm-engines-last-overhauled-by-provence-aero-maintenance-france","history":"/api/acts/ad-con-83-tcm-engines-last-overhauled-by-provence-aero-maintenance-france/history","analysis":"/api/acts/ad-con-83-tcm-engines-last-overhauled-by-provence-aero-maintenance-france/analysis","conflicts":"/api/acts/ad-con-83-tcm-engines-last-overhauled-by-provence-aero-maintenance-france/conflicts","importantCases":"/api/acts/ad-con-83-tcm-engines-last-overhauled-by-provence-aero-maintenance-france/important-cases","documents":"/api/acts/ad-con-83-tcm-engines-last-overhauled-by-provence-aero-maintenance-france/documents"}}