{"id":"F2005L03620","name":"AD/B727/199 - AFM Amendment - Fuel Pump Circuit Breaker","slug":"ad-b727-199-afm-amendment-fuel-pump-circuit-breaker","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":39245,"registerId":"commonwealth-F2005L03620-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 727 Series Aeroplanes","sectionType":"division","heading":"Boeing 727 Series Aeroplanes","content":"### Boeing 727 Series Aeroplanes\n\n| AD/B727/199 | AFM Amendment - Fuel Pump Circuit Breaker | 1/2006 DM |\n| ----------- | ----------------------------------------- | --------- |\n\n| Applicability: | All Model 727, 727C, 727-100, 727-100C, 727-200 and 727-200F series aeroplanes.                                                                                                                                                                                                                         |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Revise the Limitations Section of the Boeing 727 Aircraft Flight Manual (AFM) to include the following statement, this may be accomplished by inserting a copy of this Directive into the AFM:                                                                                                          |\n|                | \"Do not reset a tripped fuel pump circuit breaker.''                                                                                                                                                                                                                                                    |\n|                | When a statement identical to that above has been included in the general revisions of the AFM, the general revisions may be inserted into the AFM and the copy of this Directive may be removed from the AFM.                                                                                          |\n|                | Note: FAA AD 2005-23-07 Amdt 39-14365 refers.                                                                                                                                                                                                                                                           |\n| Compliance:    | Within 30 days after the effective date of this Directive.                                                                                                                                                                                                                                              |\n|                | This Airworthiness Directive becomes effective on 13 December 2005.                                                                                                                                                                                                                                     |\n| Background:    | The Federal Aviation Administration has advised that following a fuel system safety review conducted by the aeroplanes manufacturer, Boeing, an AFM amendment to prohibit the resetting of a tripped fuel pump circuit breaker was necessary to prevent possible ignition sources within the fuel tank. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n16 November 2005","sortOrder":0},{"sectionNumber":"AD/B727/199","sectionType":"part","heading":"AD/B727/199","content":"## AD/B727/199","sortOrder":1},{"sectionNumber":"AFM Amendment - Fuel Pump Circuit Breake","sectionType":"part","heading":"AFM Amendment - Fuel Pump Circuit Breaker","content":"## AFM Amendment - Fuel Pump Circuit Breaker","sortOrder":2},{"sectionNumber":"1/2006 DM","sectionType":"part","heading":"1/2006 DM","content":"## 1/2006 DM","sortOrder":3}],"analysis":{"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"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument imposes a clarifying operating limitation on the AFM rather than expanding regulatory reach. It does not introduce new inspections, modifications, or wider legal obligations beyond requiring operators to record the limitation in the AFM within the specified timeframe (Requirement; Compliance; Applicability)."},"complexity_factors":["Single, specific operational prohibition reduces legal and procedural complexity (Requirement).","Applies to all listed Boeing 727 variants, so scope is broad in fleet coverage but narrow in action (Applicability).","Short, fixed compliance window (30 days) creates an administrative scheduling constraint (Compliance).","Compliance can be met either by inserting this Directive or by general AFM revision, which adds a small procedural choice for operators (Requirement).","No new technical inspections, modifications or performance standards are required—mostly an administrative change (Requirement; Background).","References external FAA AD for context but does not add substantive procedural steps beyond the AFM amendment (Requirement; Background)."],"plain_english_summary":"This Directive requires operators of all Boeing 727 series aeroplanes to amend the Aircraft Flight Manual Limitations section to state: \"Do not reset a tripped fuel pump circuit breaker.\" (Applicability; Requirement).  It must be done within 30 days of the directive becoming effective (13 Dec 2005). The practical cost is administrative—amending the AFM or inserting this directive—borne by operators; it references FAA AD 2005-23-07 and aims to reduce possible ignition sources in fuel tanks (Requirement; Compliance; Background)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope — a targeted safety amendment to flight manual procedures for a specific aircraft type. There is no evidence of scope creep; it addresses exactly the fuel pump circuit breaker issue identified in Boeing's safety review without expanding into broader operational or maintenance requirements."},"complexity_factors":["Single, unambiguous operational requirement (one sentence to add to flight manual)","No defined terms section or interpretation provisions","Minimal conditional logic (only one temporary compliance pathway described)","No cross-references to other legislation (only a reference to corresponding FAA directive for background)","Short document (approximately 200 words of substantive content)","Clear compliance deadline (30 days from effective date)"],"plain_english_summary":"This AD requires operators of Boeing 727 series aircraft to insert a temporary AFM rule forbidding pilots from resetting a tripped fuel pump circuit breaker in flight. It affects all in-service 727 variants and must be added within 30 days of 13 December 2005 until Boeing issues a permanent AFM revision. The rule prevents possible sparks inside the fuel tank that could ignite fuel vapour and cause catastrophic explosion."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b727-199-afm-amendment-fuel-pump-circuit-breaker","history":"/api/acts/ad-b727-199-afm-amendment-fuel-pump-circuit-breaker/history","analysis":"/api/acts/ad-b727-199-afm-amendment-fuel-pump-circuit-breaker/analysis","conflicts":"/api/acts/ad-b727-199-afm-amendment-fuel-pump-circuit-breaker/conflicts","importantCases":"/api/acts/ad-b727-199-afm-amendment-fuel-pump-circuit-breaker/important-cases","documents":"/api/acts/ad-b727-199-afm-amendment-fuel-pump-circuit-breaker/documents"}}