{"id":"F2006B07370","name":"AD/TBM 700/22 - Cabin Drainage","slug":"ad-tbm-700-22-cabin-drainage","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49509,"registerId":"commonwealth-F2006B07370-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \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 CAR 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.","sortOrder":0},{"sectionNumber":"AD/TBM 700/22 Cabin Drainage 13/2000","sectionType":"part","heading":"AD/TBM 700/22 Cabin Drainage 13/2000","content":"# AD/TBM 700/22 Cabin Drainage 13/2000\n\nApplicability: All TBM 700 aircraft without Socata modification MOD 70-109-53 “Cabin drain valve” incorporated.\n\nRequirement: Replace the strainer drain system in the area of frame C10, by a valve with a larger drain hole in accordance with Socata TBM 700 Service Bulletin 70-082-53.\n\nNote: DGAC AD 2000-373(A) refers.\n\nCompliance: Within 110 hours time in service after 28 December 2000 or before 28 February 2001, whichever occurs first.\n\nThis Airworthiness Directive becomes effective on 28 December 2000.\n\nBackground: The DGAC received a report of jamming of the elevator servocontrol due to icing.\n\nThe aircraft had been exposed to heavy precipitation on the ground and water that had accumulated in the fuselage had not cleared due to clogging of a drain hole.\n\n![Signature of David Alan Villiers Delegate of the Civil Aviation Safety Authority](image.003.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 10 November 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 22 November 2000","sortOrder":1}],"analysis":{"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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope. It addresses a specific mechanical defect in a specific aircraft type (TBM 700) with a specific remedy. There is no evidence of scope creep; the document is a standalone safety directive focused entirely on the cabin drainage/icing issue described in the background."},"complexity_factors":["Very short document (approximately 250 words)","Only 4 defined elements: applicability (specific aircraft model), requirement (single mechanical action), compliance (single time condition), and background (safety rationale)","No cross-references to other legislation beyond a single note referencing the French aviation authority's equivalent directive","Simple conditional logic: 'whichever occurs first' is the only conditional element","Single exception: aircraft already modified with MOD 70-109-53 are exempt","Clear, prescriptive language with no nested exceptions or interpretive ambiguity"],"plain_english_summary":"This AD orders owners/operators of TBM 700s (unless already modified by MOD 70-109-53) to replace a small cabin drain with a larger-valve drain per Service Bulletin 70-082-53. The change must be done within 110 flight hours after 28 Dec 2000 or before 28 Feb 2001, whichever comes first. It prevents water ingress that can freeze and jam the elevator controls — a proven, potentially catastrophic safety hazard."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope remains focused and unchanged from the instrument's stated remedy: it applies only to TBM 700 aircraft lacking MOD 70-109-53 and mandates replacement of the frame C10 drain strainer with a larger‑hole valve per Socata SB 70-082-53, within the specified time window (Applicability; Requirement; Compliance)."},"complexity_factors":["Narrow, equipment-specific applicability (all TBM 700 without MOD 70-109-53) reduces scope complexity (Applicability).","Prescriptive single technical remedy: replace strainer with specified valve per Socata SB 70-082-53 limits interpretive burden (Requirement).","Short, fixed compliance window creates scheduling pressure for operators but not legal ambiguity (Compliance).","Implementation requires approved maintenance actions and parts supply, introducing operational and cost considerations for operators.","Regulatory authority and enforcement are straightforward (CASA delegate under CAR 1998 subreg 39.1(1)), limiting administrative discretion.","Reference to foreign AD (DGAC AD 2000-373(A)) adds provenance but no additional procedural steps."],"plain_english_summary":"This AD requires owners/operators of TBM 700 aircraft without Socata modification MOD 70-109-53 to replace the cabin strainer drain at frame C10 with a larger‑hole valve, following Socata Service Bulletin 70-082-53, to prevent water buildup that can cause elevator servocontrol icing (Requirement; Background). Compliance is within 110 flight hours after 28 December 2000 or by 28 February 2001, whichever is earlier; operators pay for parts and maintenance, and CASA issued the directive under CAR 1998 subreg 39.1(1) (Applicability; Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tbm-700-22-cabin-drainage","history":"/api/acts/ad-tbm-700-22-cabin-drainage/history","analysis":"/api/acts/ad-tbm-700-22-cabin-drainage/analysis","conflicts":"/api/acts/ad-tbm-700-22-cabin-drainage/conflicts","importantCases":"/api/acts/ad-tbm-700-22-cabin-drainage/important-cases","documents":"/api/acts/ad-tbm-700-22-cabin-drainage/documents"}}