{"id":"F2005L00841","name":"AD/B737/210 Amdt 1 - Elevator and Elevator Tab Assembly","slug":"ad-b737-210-amdt-1-elevator-and-elevator-tab-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":113178,"registerId":"commonwealth-F2005L00841-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 737 Series Aeroplanes","sectionType":"division","heading":"Boeing 737 Series Aeroplanes","content":"### Boeing 737 Series Aeroplanes\n\n| AD/B737/210 Amdt 1 | Elevator and Elevator Tab Assembly | 5/2005 |\n| ------------------ | ---------------------------------- | ------ |\n\n| Applicability: | Model 737-600, -700, -700C, -800, and -900 series aircraft, line numbers 1 through 1174.                                                                                                                                                                                                                                                                                                                                                                                         |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the technical requirements of FAA AD 2003-03-22 Amdt 39-13047.Paragraph (a)(2) of the Requirement document requires revising the Limitations section of the Aircraft Flight Manual (AFM) to include the following statement:“In flight, do not extend the speedbrake lever beyond the FLIGHT detent”.This may be accomplished by inserting a copy of this Directive in the AFM.Note: Boeing Alert Service Bulletins 737-11A1109 and 737-55A1080 refer. |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of 17 April 2003.Note: Compliance with paragraph (b) of FAA AD 2003-03-22 is considered terminating action for CASA AD/B737/185 Amdt 2.                                                                                                                                                                                                                                                                  |\n|                | This Amendment becomes effective on 12 May 2005.                                                                                                                                                                                                                                                                                                                                                                                                                                 |\n| Background:    | This Directive requires installing a speedbrake limitation placards in the flight compartment, and revising the Limitations Section of the AFM. For certain aircraft, this Directive requires modifying the elevator and elevator tab assembly. This action is necessary to prevent severe vibration of the elevator and elevator tab assembly, which could result in severe damage to the horizontal stabiliser and possible loss of the elevator tab.                          |\n\n|     | Amendment 1 is issued to identify that compliance with paragraph (b) of FAA AD 2003-03-22 is considered terminating action for CASA AD/B737/185 Amdt 2. |\n| --- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n31 March 2005","sortOrder":0},{"sectionNumber":"AD/B737/210 Amdt 1","sectionType":"part","heading":"AD/B737/210 Amdt 1","content":"## AD/B737/210 Amdt 1","sortOrder":1},{"sectionNumber":"Elevator and Elevator Tab Assembly","sectionType":"part","heading":"Elevator and Elevator Tab Assembly","content":"## Elevator and Elevator Tab Assembly","sortOrder":2},{"sectionNumber":"5/2005","sectionType":"part","heading":"5/2005","content":"## 5/2005","sortOrder":3}],"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":3,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow, technical scope: addressing a specific structural vibration risk in specific Boeing 737 aircraft. Amendment 1 does not expand the substantive safety requirements; it merely clarifies the relationship with a prior directive to prevent redundant compliance actions. The scope remains tightly focused on elevator and speedbrake systems for the identified aircraft line numbers."},"complexity_factors":["Heavy reliance on external documents: the entire technical requirement is incorporated by reference to FAA AD 2003-03-22 Amdt 39-13047, meaning the full obligations aren't contained in this document","Cross-referencing between multiple regulatory instruments: this AD amends/references CASA AD/B737/185 Amdt 2 and FAA AD 2003-03-22","Conditional applicability based on aircraft line numbers (1-1174) and specific model variants","Dual compliance pathways: operators may comply with either this CASA AD or specific paragraphs of the FAA AD","Technical aviation terminology requiring specialised knowledge (e.g., 'FLIGHT detent', 'elevator tab assembly', 'horizontal stabiliser', 'terminating action')","Brief document (approximately 300 words) with minimal defined terms, but dense with operational technical references"],"plain_english_summary":"This CASA Airworthiness Directive mandates that Australian operators of early-production Boeing 737-600/700/700C/800/900 (line numbers 1–1174) install cockpit placards, amend the Aircraft Flight Manual to restrict in‑flight speedbrake movement, and modify the elevator/elevator‑tab assembly. The measures address severe in‑flight vibration that can damage the horizontal stabiliser or cause elevator‑tab separation. Amendment 1 clarifies that compliance with the FAA’s specified paragraph also satisfies the earlier Australian AD, avoiding duplicate work."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"Amendment 1 does not expand the population of affected aircraft but clarifies scope by declaring that compliance with paragraph (b) of FAA AD 2003-03-22 constitutes terminating action for CASA AD/B737/185 Amdt 2 (Amendment 1; Compliance). The core requirements (AFM limitation, placards, and, where applicable, elevator/tab modification) remain the same (Requirement; Background)."},"complexity_factors":["Cross-reference to FAA AD 2003-03-22 — compliance depends on meeting the FAA AD's technical requirements and dates (Requirement; Compliance).","Applicability restricted to specified Boeing 737 models and line numbers 1–1174, requiring operators to check fleet eligibility (Applicability).","Multiple compliance actions: AFM revision, placard installation, and for certain aircraft structural modification of elevator/elevator tab assembly (Requirement; Background).","Interplay with another CASA directive — paragraph (b) of the FAA AD is declared terminating action for CASA AD/B737/185 Amdt 2, creating dependency between instruments (Compliance; Amendment 1).","Revised and staggered effective/compliance dates (Compliance: revised effective date 17 April 2003; Amendment effective 12 May 2005).","References to Boeing Alert Service Bulletins as related service information, implying coordination with manufacturer documents (Requirement note)."],"plain_english_summary":"This Directive requires operators of Boeing 737-600/700/700C/800/900 (line numbers 1–1174) to add a new AFM limitation, install speedbrake limitation placards, and for some aircraft to modify the elevator and elevator tab assembly to prevent severe vibration and possible loss of the elevator tab (Requirement; Background). Operators must follow the technical requirements and dates of FAA AD 2003-03-22; meeting paragraph (b) of that FAA AD also satisfies a related CASA AD (Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-210-amdt-1-elevator-and-elevator-tab-assembly","history":"/api/acts/ad-b737-210-amdt-1-elevator-and-elevator-tab-assembly/history","analysis":"/api/acts/ad-b737-210-amdt-1-elevator-and-elevator-tab-assembly/analysis","conflicts":"/api/acts/ad-b737-210-amdt-1-elevator-and-elevator-tab-assembly/conflicts","importantCases":"/api/acts/ad-b737-210-amdt-1-elevator-and-elevator-tab-assembly/important-cases","documents":"/api/acts/ad-b737-210-amdt-1-elevator-and-elevator-tab-assembly/documents"}}