{"id":"F2007L02438","name":"AD/ATR 42/14 - Structural Fatigue Tests - Inspection Requirements","slug":"ad-atr-42-14-structural-fatigue-tests-inspection-requirements","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":67889,"registerId":"commonwealth-F2007L02438-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Avions de Transport Regional ATR 42 Seri","sectionType":"division","heading":"Avions de Transport Regional ATR 42 Series Aeroplanes","content":"### Avions de Transport Regional ATR 42 Series Aeroplanes\n\n| AD/ATR 42/14 | Structural Fatigue Tests - Inspection Requirements | 9/2007 |\n| ------------ | -------------------------------------------------- | ------ |\n\n| Applicability: | All Model ATR 42-200, -300, and -320 aircraft.                                                                                                          |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the requirements of DGAC AD 2000-337-079(B).                                                                                  |\n| Compliance:    | As specified in the Requirement document.                                                                                                               |\n|                | This Airworthiness Directive becomes effective on 30 August 2007.                                                                                       |\n| Background:    | As a result of damage discovered during fatigue testing, special inspections are required at the threshold times specified in the Requirement document. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n10 July 2007","sortOrder":0},{"sectionNumber":"AD/ATR 42/14","sectionType":"part","heading":"AD/ATR 42/14","content":"## AD/ATR 42/14","sortOrder":1},{"sectionNumber":"Structural Fatigue Tests - Inspection Re","sectionType":"part","heading":"Structural Fatigue Tests - Inspection Requirements","content":"## Structural Fatigue Tests - Inspection Requirements","sortOrder":2},{"sectionNumber":"9/2007","sectionType":"part","heading":"9/2007","content":"## 9/2007","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard Airworthiness Directive implementing a foreign aviation safety requirement. It has not expanded beyond its original purpose of mandating fatigue-related inspections for specific aircraft models."},"complexity_factors":["Very short document (approximately 150 words of substantive content)","Only 1 defined term implicitly referenced (the DGAC AD number)","No conditional logic or nested exceptions — it's a straightforward mandate","Single cross-reference to an external technical document (the French DGAC AD)","No subsections, parts, or schedules","Clear, unambiguous applicability statement"],"plain_english_summary":"This CASA Airworthiness Directive mandates special structural inspections for ATR 42-200/300/320 aircraft in Australia after fatigue testing showed risk of structural cracking. It affects owners, operators and maintenance organisations, requiring them to detect and repair fatigue damage before it becomes a safety hazard.\n\nThe AD became mandatory on 30 August 2007 and directs Australian operators to follow the inspection procedures and intervals specified in DGAC AD 2000-337-079(B)."},"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":false,"description":"The directive adopts and enforces the DGAC AD for the listed ATR 42 models without expanding applicability or adding new obligations beyond those referenced. It confines obligations to the specified models and to the inspections and thresholds set out in the Requirement document."},"complexity_factors":["Cross-reference to an external foreign airworthiness directive (DGAC AD 2000-337-079(B)) — compliance depends on obtaining and interpreting a separate document (Requirement).","Key compliance parameters (inspection threshold times) are not stated in this instrument but only in the referenced Requirement document, increasing procedural complexity (Background).","Applicability covers multiple aircraft models (ATR 42-200, -300, -320), so fleet-wide scheduling and record-keeping are required (Applicability).","Imposes technical inspection work arising from structural fatigue findings, which requires specialist maintenance resources and possible repairs (Background; Requirement).","Introduces operational impacts on maintenance planning and potential aircraft downtime, requiring coordination between operators and the Civil Aviation Safety Authority (effective date and signature).","Enforcement and compliance-tracking obligations tied to a fixed effective date (30 August 2007) create administrative deadlines for operators (Compliance; effective date)."],"plain_english_summary":"**What it does:** Requires all ATR 42-200, -300 and -320 aeroplanes to undergo specified structural fatigue inspections by complying with DGAC AD 2000-337-079(B). It changes maintenance obligations by imposing inspection thresholds and recordkeeping tied to that external directive. \n\n**Why it matters and who it affects:** Issued after damage was found in fatigue testing, the directive affects aircraft owners/operators (who must arrange and pay for inspections and any repairs) and the regulator (who enforces compliance); effective 30 August 2007."},"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-atr-42-14-structural-fatigue-tests-inspection-requirements","history":"/api/acts/ad-atr-42-14-structural-fatigue-tests-inspection-requirements/history","analysis":"/api/acts/ad-atr-42-14-structural-fatigue-tests-inspection-requirements/analysis","conflicts":"/api/acts/ad-atr-42-14-structural-fatigue-tests-inspection-requirements/conflicts","importantCases":"/api/acts/ad-atr-42-14-structural-fatigue-tests-inspection-requirements/important-cases","documents":"/api/acts/ad-atr-42-14-structural-fatigue-tests-inspection-requirements/documents"}}