{"id":"F2006B02874","name":"AD/B737/170 - Rudder Pedal Pushrod Fastener","slug":"ad-b737-170-rudder-pedal-pushrod-fastener","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42216,"registerId":"commonwealth-F2006B02874-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.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.\n\nBoeing 737 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B737/170 Rudder Pedal Pushrod Fastene","sectionType":"part","heading":"AD/B737/170 Rudder Pedal Pushrod Fastener 1/2002","content":"# AD/B737/170 Rudder Pedal Pushrod Fastener 1/2002\n\nApplicability: Boeing 737-100, \\-200, \\-300, \\-400, and \\-500 series aircraft; as listed in Boeing Service\n\nBulletin 737-27A1214 Revision 1, dated 1 July 1999.\n\nRequirement: Action in accordance with the technical requirements of FAA AD 2001-22-13 Amdt 39-12492.\n\nCompliance: As specified in the Requirement document with a revised effective date of 24 January 2002.\n\nThis Airworthiness Directive becomes effective on 24 January 2002.\n\nBackground: The FAA requires replacement of the rudder pedal fasteners for both the captain’s and the first officer’s pedal assemblies with new, improved fasteners. This action is required to prevent loss of rudder control due to improperly torqued fasteners that connect the pushrod to the rudder pedal assembly, which could result in loss of controllability of the aircraft.\n\n![Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.](image.002.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 4 December 2001\n\n![](image.001.png)","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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD adopts and enforces the FAA technical requirement for replacing rudder pedal pushrod fasteners on specified Boeing 737 series and sets a revised effective date; it does not expand or narrow the applicability beyond the aircraft listed in Boeing Service Bulletin 737-27A1214 Rev 1 and the FAA AD (Requirement; Applicability; Compliance)."},"complexity_factors":["Narrow technical scope: single corrective action — replacement of rudder pedal pushrod fasteners on two pedal assemblies (Requirement; Background).","Cross-reference to external FAA technical document (FAA AD 2001-22-13) and Boeing Service Bulletin — requires operators to obtain and follow another authority’s detailed instructions (Requirement; Applicability).","Defined applicability to specific aircraft series (737-100/200/300/400/500) limits affected population but requires fleet identification and part tracking (Applicability).","Fixed compliance timing/effective date increases scheduling and operational planning needs for operators (Compliance).","Regulatory allocation of decision-making: CASA issues the AD but delegates technical specification to FAA/Boeing documents, creating coordination and reliance on external technical detail (Requirement; Background).","Safety consequence stated (loss of rudder control) increases enforcement priority and reduces discretion about whether to act, though the AD does not state enforcement or cost-recovery mechanisms (Background)."],"plain_english_summary":"This AD requires operators of Boeing 737-100/200/300/400/500 series aeroplanes to replace the rudder pedal pushrod fasteners on both the captain’s and first officer’s pedal assemblies with improved fasteners, following the technical instructions in FAA AD 2001-22-13 and Boeing Service Bulletin 737-27A1214 Rev 1 (Requirement; Applicability). CASA issued the directive to prevent loss of rudder control from improperly torqued fasteners; operators must schedule and pay for the maintenance by the stated compliance/effective date (Background; Compliance)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with a narrow, specific safety purpose: fixing a known hardware defect on specific aircraft. It has not expanded beyond its original intent."},"complexity_factors":["Very short document (under 300 words)","Only 3 substantive sections: Applicability, Requirement, and Compliance","Single technical requirement that defers entirely to external FAA document (AD 2001-22-13)","No defined terms section — relies on common aviation terminology","No conditional logic or nested exceptions","Straightforward applicability: specific aircraft models listed by reference to Boeing Service Bulletin"],"plain_english_summary":"This safety order requires airlines operating Boeing 737-100/200/300/400/500 series in Australia to replace old fasteners on captain and first officer rudder pedals with improved parts, following FAA technical instructions. It affects operators, maintenance engineers who perform the work, and CASA inspectors enforcing compliance. It matters because loose pedal fasteners can cause loss of rudder control and potential loss of aircraft control. The directive took effect 24 January 2002."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-170-rudder-pedal-pushrod-fastener","history":"/api/acts/ad-b737-170-rudder-pedal-pushrod-fastener/history","analysis":"/api/acts/ad-b737-170-rudder-pedal-pushrod-fastener/analysis","conflicts":"/api/acts/ad-b737-170-rudder-pedal-pushrod-fastener/conflicts","importantCases":"/api/acts/ad-b737-170-rudder-pedal-pushrod-fastener/important-cases","documents":"/api/acts/ad-b737-170-rudder-pedal-pushrod-fastener/documents"}}