{"id":"F2006L00739","name":"AD/TBM 700/44 - Elevator Trim Tab Lateral Play","slug":"ad-tbm-700-44-elevator-trim-tab-lateral-play","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":136762,"registerId":"commonwealth-F2006L00739-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Aerospatiale (Socata) TBM 700 Series Aer","sectionType":"division","heading":"Aerospatiale (Socata) TBM 700 Series Aeroplanes","content":"### Aerospatiale (Socata) TBM 700 Series Aeroplanes\n\n| AD/TBM 700/44 | Elevator Trim Tab Lateral Play | 4/2006 |\n| ------------- | ------------------------------ | ------ |\n\n| Applicability: | EADS SOCATA TBM 700 aircraft, from serial number 271 to 328 inclusive.                                                                                                                                                                                                                                                             |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Verify there is no lateral play for both elevator trim tabs and correct, as necessary, by installing a setting washer as instructed in the Service Bulletin EADS SOCATA TBM 700 No 70-135 dated December 2005 or later DGAC approved revision.Note: DGAC AD F-2006-028 EASA approval No. No 2006-0024 dated24 January 2006 refers. |\n| Compliance:    | On the next scheduled 100-hour inspection, or at the next annual inspection, whichever occurs earliest after the effective date of this AD, unless previously accomplished.                                                                                                                                                        |\n|                | This Airworthiness Directive becomes effective on 13 April 2006.                                                                                                                                                                                                                                                                   |\n| Background:    | Excessive lateral play caused by a non conforming washer might lead to the deterioration of the elevator trim tab bearing fatigue resistance.                                                                                                                                                                                      |\n\n![](image.001.png)  \nJayaprakashan Ambali  \nDelegate of the Civil Aviation Safety Authority\n\n21 February 2006","sortOrder":0},{"sectionNumber":"AD/TBM 700/44","sectionType":"part","heading":"AD/TBM 700/44","content":"## AD/TBM 700/44","sortOrder":1},{"sectionNumber":"Elevator Trim Tab Lateral Play","sectionType":"part","heading":"Elevator Trim Tab Lateral Play","content":"## Elevator Trim Tab Lateral Play","sortOrder":2},{"sectionNumber":"4/2006","sectionType":"part","heading":"4/2006","content":"## 4/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope remains as stated in the instrument: limited to TBM 700 aircraft serial numbers 271–328 and requires inspection and correction per the named Service Bulletin. No expansion of affected fleet or additional obligations beyond the specified inspection/correction and timing is introduced in the text provided (Applicability; Requirement; Compliance)."},"complexity_factors":["Narrow applicability: only EADS SOCATA TBM 700 aircraft serial numbers 271–328 are affected (Applicability).","Simple corrective action: verification of lateral play and possible installation of a setting washer per a specified Service Bulletin (Requirement).","Timing constraint: must be done at the next scheduled 100‑hour inspection or next annual inspection, whichever is earlier (Compliance).","Regulatory linkage: action is tied to a manufacturer Service Bulletin and requires DGAC/EASA approval references, adding a layer of cross‑jurisdictional conformity (Requirement; note referencing DGAC AD and EASA approval).","Operational burden: cost and logistics fall to owners/operators (who pay for inspection, labour, and any parts), and maintenance scheduling may be affected by the inspection timing (Compliance).","Administrative tracking: operators must record compliance at the specified inspection and ensure use of the correct, DGAC‑approved Service Bulletin revision (Requirement).","Technical risk driver identified: the directive is prompted by a non‑conforming washer that could reduce bearing fatigue resistance, linking the inspection to a specific failure mode (Background).","Low technical complexity but non‑zero parts dependency: procedure is straightforward for maintenance personnel, but availability of the prescribed setting washer or approved replacement may affect remediation speed (Requirement)."],"plain_english_summary":"Requires owners/operators of EADS SOCATA TBM 700 aeroplanes (serial numbers 271–328) to check for lateral play in both elevator trim tabs and, if necessary, fit a setting washer per Service Bulletin EADS SOCATA TBM 700 No 70‑135 (or later DGAC‑approved revision). The inspection must be completed at the next scheduled 100‑hour or annual inspection, whichever is earlier, effective 13 April 2006. The AD cites a non‑conforming washer that may reduce elevator trim tab bearing fatigue resistance."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific manufacturing defect in a limited aircraft population. It has not expanded beyond its original purpose of correcting a known hardware non-conformance."},"complexity_factors":["Single, specific mechanical issue addressed (elevator trim tab lateral play)","Narrow applicability (only 58 specific aircraft serial numbers)","Single compliance action (visual inspection and conditional washer installation)","Clear deadline tied to existing maintenance schedule","No nested exceptions, conditional logic, or extensive cross-referencing","References only one external technical document (Service Bulletin 70-135)","Total length: approximately 150 words of substantive content"],"plain_english_summary":"CASA requires owners/operators of EADS SOCATA TBM 700 aeroplanes (S/N 271–328) to inspect elevator trim tabs for lateral play and, if present, install a specified washer per the manufacturer's service bulletin. Maintenance engineers must perform the check at the next 100‑hour or annual inspection after 13 April 2006. The action prevents bearing wear that could lead to control or structural failure."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-tbm-700-44-elevator-trim-tab-lateral-play","history":"/api/acts/ad-tbm-700-44-elevator-trim-tab-lateral-play/history","analysis":"/api/acts/ad-tbm-700-44-elevator-trim-tab-lateral-play/analysis","conflicts":"/api/acts/ad-tbm-700-44-elevator-trim-tab-lateral-play/conflicts","importantCases":"/api/acts/ad-tbm-700-44-elevator-trim-tab-lateral-play/important-cases","documents":"/api/acts/ad-tbm-700-44-elevator-trim-tab-lateral-play/documents"}}