{"id":"F2005L03578","name":"AD/B767/167 Amdt 3 - Centre/Auxiliary Fuel Tank Override/Jettison Fuel Pumps","slug":"ad-b767-167-amdt-3-centre-auxiliary-fuel-tank-override-jettison-fuel-pumps","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":39163,"registerId":"commonwealth-F2005L03578-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 767 Series Aeroplanes","sectionType":"division","heading":"Boeing 767 Series Aeroplanes","content":"### Boeing 767 Series Aeroplanes\n\n| AD/B767/167 Amdt 3 | Centre/Auxiliary Fuel TankOverride/Jettison Fuel Pumps | 13/2005 |\n| ------------------ | ------------------------------------------------------ | ------- |\n\n| Applicability: | Boeing 767-200, -300 and -300F series aeroplanes.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Revise the Limitation Section of the Aircraft Flight Manual (AFM), replace override fuel pumps, carry out repetitive inspections of override/jettison fuel pumps and install modified override and override/jettison fuel pumps in accordance with the requirements of FAA AD 2001-15-08, Amdt 39-12342.Terminating Actions.Accomplishment of the requirements of paragraph (e) of FAA AD 2001-15-08 constitutes terminating action for the requirements of AD/B767/77 Amdt 2 (refer FAA AD 94-11-05, amendment 39-8921 dated 31 May 1994).Accomplishment of the requirements of paragraph (i) of FAA AD 2001-15-08 constitutes terminating action for:The requirements of paragraphs (a), (b), (c), (d), (e), (g), and (h) of FAA AD 2001-15-08, and the requirements of AD/B767/77 (refer FAA AD 94-11-05, amendment 39-8921 dated 31 May 1994); andThe requirements detailed in AD/B767/55.Note 1: FAA AD 2001-15-08 Amdt 39-12342 refers.Note 2: AD/B767/77 Amdt 2 relates to FAA AD 94-11-05 Amdt 39-8921.Note 3: AD/B767/55 relates to FAA AD 91-15-11. |\n| Compliance:    | (a) For other than paragraph (i) of the requirement document: As detailed in the requirement document from the effective date of the original issue of this directive.(b) For paragraph (i) of the of the requirement document: Within 84 months from the effective date of the original issue of this directive.Note 4: Compliance (b) reflects an extension of 48 months to the original compliance period for this Directive, approved by FAA letter 140S-03-120 dated 1 May 2003 attached to Boeing Service Letter 767-SL-28-036 dated 10 July 2003.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |\n|                | This Amendment becomes effective on 22 December 2005.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |\n| Background:    | The actions required by this Directive are intended to prevent ignition of fuel vapours due to the generation of sparks inside the fuel tank caused by steel-to-steel contact during dry fuel pump operation.This amendment provides terminating actions for AD/B767/55 for those pumps fitted with machined diffuser rings.Amendment 2 changed the original compliance period for paragraph (i) of the requirement document following issue of FAA letter approving an extension. This followed a submission from Boeing to be given sufficient time to carry out tests etc. to investigate operator reports of intermittent fuel imbalance caused by modified replacement pumps.Amendment 1 provided terminating actions as detailed in the requirement document with reference to the relevant Australian Directive.The original issue of the Airworthiness Directive became effective on 17 April 2003.Amendment 1 of this Directive became effective 30 October 2003.Amendment 2 of this Directive became effective on 20 January 2005.                  |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n11 November 2005","sortOrder":0},{"sectionNumber":"AD/B767/167 Amdt 3","sectionType":"part","heading":"AD/B767/167 Amdt 3","content":"## AD/B767/167 Amdt 3","sortOrder":1},{"sectionNumber":"Centre/Auxiliary Fuel TankOverride/Jetti","sectionType":"part","heading":"Centre/Auxiliary Fuel TankOverride/Jettison Fuel Pumps","content":"## Centre/Auxiliary Fuel Tank  \nOverride/Jettison Fuel Pumps","sortOrder":2},{"sectionNumber":"13/2005","sectionType":"part","heading":"13/2005","content":"## 13/2005","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"The legislation maintains its original scope as a safety directive addressing fuel pump ignition risks in Boeing 767 aircraft. While Amendment 3 extends compliance deadlines and adds terminating actions for earlier directives, these changes remain within the original purpose of ensuring safe fuel pump modifications. The amendments reflect operational realities (Boeing needing time to test replacement pumps) rather than scope creep into unrelated areas."},"complexity_factors":["Heavy cross-referencing to US FAA directives (AD 2001-15-08, AD 94-11-05, AD 91-15-11) and earlier Australian directives (AD/B767/77, AD/B767/55) — requires reading multiple external documents to understand full requirements","Nested terminating actions with conditional logic: compliance with paragraph (e) terminates some requirements, while paragraph (i) terminates others plus additional directives","Multiple amendment history (original + 3 amendments) with different effective dates and changing compliance deadlines","Technical aviation terminology throughout ('override fuel pumps', 'jettison fuel pumps', 'machined diffuser rings', 'dry fuel pump operation')","Dual compliance timelines: immediate compliance for most requirements vs extended 84-month deadline for final paragraph (i) installations","Incorporation by reference to Boeing Service Letters and FAA approval letters rather than spelling out requirements directly in the text"],"plain_english_summary":"This CASA Airworthiness Directive mandates that operators of Boeing 767-200/300/300F aircraft fix unsafe centre and auxiliary fuel pumps—requiring updates to the flight manual plus pump replacements, inspections and installation of modified pumps—to eliminate a risk where metal-on-metal contact in dry-running pumps can spark and ignite fuel vapours. Amendment 3 extends compliance timeframes, offers terminating actions, aligns the rule with the FAA AD, and affects airlines and operators who must meet the revised deadlines."},"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":false,"description":"The amendments adjusted compliance timing (an FAA-approved extension for one paragraph) and added/confirmed terminating actions tied to specific paragraphs of the FAA AD, but did not materially broaden which aircraft are affected or add new categories of requirements beyond the safety modifications, AFM revision, inspections and installations already required. In short, the instrument refines timing and termination mechanics rather than expanding the Directive’s substantive scope."},"complexity_factors":["Cross-references to multiple external documents: FAA AD 2001-15-08 (Amdt 39-12342), FAA AD 94-11-05 (Amdt 39-8921), AD/B767/77 Amdt 2 and AD/B767/55","Multiple distinct required actions (revise AFM, replace pumps, repetitive inspections, install modified pumps)","Terminating-action logic tied to specific paragraphs of the FAA AD (paragraphs (e) and (i))","Differing compliance timelines: general compliance 'as detailed' vs. an 84-month extended period for paragraph (i)","Amendment history and notes (original AD plus Amendments 1–3) increasing interpretive context","Dependency on external approval letters (FAA letter approving extension) and Boeing service letter for compliance timing","Operational-technical subject matter requiring referencing of detailed FAA technical instructions (adds implicit technical complexity)","Limited scope (three 767 variants) reduces breadth but increases technical specificity"],"plain_english_summary":"**What this directive does (mechanically)\n\n- Who it applies to: Boeing 767-200, -300 and -300F series aircraft (see \"Applicability\").\n\n- Actions required of operators (see \"Requirement\"):\n  - Update the Aircraft Flight Manual (AFM) Limitation Section to include the new instructions.\n  - Replace certain centre/auxiliary fuel tank override and jettison fuel pumps with specified replacement parts.\n  - Carry out repetitive inspections of the override/jettison fuel pumps.\n  - Install modified override and override/jettison fuel pumps according to the detailed requirements of FAA Airworthiness Directive (AD) 2001-15-08 (Amendment 39-12342).\n\n- Terminating actions (how an operator can stop the repetitive requirements):\n  - Completing the work required by paragraph (e) of FAA AD 2001-15-08 removes the need to comply with AD/B767/77 Amendment 2 (which itself is linked to FAA AD 94-11-05).\n  - Completing the work required by paragraph (i) of FAA AD 2001-15-08 removes the need to comply with specified paragraphs (a), (b), (c), (d), (e), (g) and (h) of FAA AD 2001-15-08 and with AD/B767/77 and AD/B767/55.\n\n- Compliance timing (see \"Compliance\"):\n  - For most of the FAA AD requirements, compliance is as set out in the FAA document from the effective date of the original Directive.\n  - For the specific FAA AD paragraph (i) requirement, operators were given up to 84 months from the original directive’s effective date to comply (this extended period was approved by an FAA letter and recorded in a Boeing service letter).\n\n- Why CASA says it matters (stated purpose — see \"Background\"):\n  - The technical aim is to prevent ignition of fuel vapours inside the centre/auxiliary tanks that could occur if steel-to-steel contact inside a dry-running fuel pump generates sparks.\n  - The amendment also provides a terminating-action pathway for previous related directives where pumps already fitted with machined diffuser rings are concerned.\n\nPlain-language implications, incentives and costs\n\n- Who pays: aircraft operators (airlines, freight operators) pay for the AFM revision, parts procurement, inspections and installation labour. Those costs include parts, maintenance labour and aircraft downtime while work is carried out.\n\n- Who decides and how it is implemented: CASA enforces the AD but relies on the FAA AD 2001-15-08 for the technical specification of the required work. Operators must schedule and carry out the work or rely on the terminating-action installations in the FAA AD to end repetitive inspections.\n\n- Behaviour changes required: operators must incorporate the AFM changes, replace or modify pumps where required, and run recurring inspections unless/until they fit the terminating-action modification.\n\n- Trade-offs and implementation risks:\n  - Opportunity cost: time and hangar capacity used to perform upgrades and inspections that could otherwise be used for revenue flying.\n  - Supply/lead-time risk: replacement or modified pumps may be subject to parts availability; the FAA-approved extension for paragraph (i) suggests Boeing and regulators recognised the need for extra time to test and fit replacements.\n  - Operational risk: the directive responds to a safety risk (possible ignition source in fuel tanks). The counterfactual cost is continuing to operate without the mitigations.\n\n- Compliance burden and predictability: the AD is prescriptive (specific manual revision, parts replacement, inspections) and cross-references the FAA AD for technical detail. The presence of terminating actions provides a predictable way to remove ongoing inspection costs once the specified modifications are completed.\n\n- Effects on competition and private choice: all operators of the affected 767 variants face the same technical requirements. The AD does not create exclusive rights or favours for particular suppliers in the text; however, practical effects on competition could arise if only some suppliers can provide approved modified pumps quickly, which would raise costs and delay for some operators.\n\n- Concentrated benefits and diffuse costs: operators who adopt the terminating modification earlier bear concentrated costs (parts and downtime) and then receive the concentrated benefit of stopping repetitive inspections. The safety benefit is diffuse (affects passengers, crew and broader aviation safety).\n\n- Notes on cross-reference mechanics: the Directive enforces Australian compliance by adopting substantive requirements from FAA AD 2001-15-08 and ties termination of several earlier ADs to completion of specific paragraphs of that FAA AD (paragraphs (e) and (i)). See the \"Requirement\" and \"Background\" sections for the specific cross-references.\n\nSource anchors: statements above are drawn from the Directive’s Applicability, Requirement, Compliance and Background sections, which reference FAA AD 2001-15-08 (Amdt 39-12342), AD/B767/77 Amdt 2 and AD/B767/55.\n"},"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-b767-167-amdt-3-centre-auxiliary-fuel-tank-override-jettison-fuel-pumps","history":"/api/acts/ad-b767-167-amdt-3-centre-auxiliary-fuel-tank-override-jettison-fuel-pumps/history","analysis":"/api/acts/ad-b767-167-amdt-3-centre-auxiliary-fuel-tank-override-jettison-fuel-pumps/analysis","conflicts":"/api/acts/ad-b767-167-amdt-3-centre-auxiliary-fuel-tank-override-jettison-fuel-pumps/conflicts","importantCases":"/api/acts/ad-b767-167-amdt-3-centre-auxiliary-fuel-tank-override-jettison-fuel-pumps/important-cases","documents":"/api/acts/ad-b767-167-amdt-3-centre-auxiliary-fuel-tank-override-jettison-fuel-pumps/documents"}}