{"id":"F2006B09638","name":"AD/F100/36 - Fire Extinguisher Electrical Connectors","slug":"ad-f100-36-fire-extinguisher-electrical-connectors","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":54444,"registerId":"commonwealth-F2006B09638-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/F100/36 - Fire Extinguisher Electrical Connectors","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nFokker F100 (F28 Mk 100) Series Aeroplanes\n\nAD/F100/36 Fire Extinguisher Electrical Connectors 1/2000\n\nApplicability: Model F.28 Mk.0070 and Mk.0100 aeroplanes.\n\nRequirement: 1. Perform a resistance check on engine and auxiliary power unit (APU) fire extinguisher electrical connectors in accordance with Part A of the Accomplishment Instructions of Fokker Service Bulletin (SB) F100-26-015 dated 15 August 1999.\n\n    2. If a short circuit is detected during the Requirement 1 check, inspect and, if necessary, modify the affected connectors in accordance with Part B (paragraphs C through H) of the Accomplishment Instructions of SB F100-26-015.\n\n    3. If a short circuit is not detected during the Requirement 1 check inspect and, if necessary, modify the affected connectors in accordance with Part B (paragraphs C through H) of the Accomplishment Instructions of SB F100-26-015.\n\nNote: Netherlands RLD AD 1999-110 (A) refers.\n\nCompliance: 1. Within 12 calendar months from the effective date of this Directive.\n\n    2. Before further flight.\n\n    3. At the next scheduled weight check of the fire extinguisher bottle or within two years after the Requirement 1 check, whichever occurs first.\n\nThis Airworthiness Directive becomes effective on 31 December 1999.\n\nBackground: Fokker has advised of reports that APU and engine fire extinguisher electrical connectors were found shorted. Investigation revealed that solder connectors were not insulated by a grommet or shrink sleeves. Additionally, a short circuit cannot be detected by the current Aircraft Maintenance Manual resistance checks.\n\nThis condition, if not corrected, may result in disabling of the affected fire extinguisher system.","sortOrder":0}],"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":3,"scope_assessment":{"changed":false,"description":"The Directive applies only to F.28 Mk.0070 and Mk.0100 aeroplanes and targets engine and APU fire‑extinguisher electrical connectors as described in Fokker Service Bulletin F100‑26‑015. It does not expand or narrow that applicability within the text provided and preserves the SB’s procedural scope and timelines (Requirements 1–3 and associated compliance dates)."},"complexity_factors":["Limited technical scope: single component family (engine and APU fire‑extinguisher electrical connectors) and specific aircraft models reduces breadth","Conditional work sequence: immediate modification required if a short is found (Requirement 2); otherwise modification at next scheduled weight check or within two years (Requirement 3)","Dependence on external material: mandates compliance with Fokker Service Bulletin F100‑26‑015 for test and modification procedures","Safety‑critical nature increases regulatory consequence and need for trained maintenance personnel","Specified compliance windows (12 months; before further flight; next scheduled weight check or 2 years) impose scheduling and operational constraints","Limitation noted that existing resistance checks may not detect all short circuits, implying residual inspection risk and reliance on the SB’s additional procedures"],"plain_english_summary":"This Airworthiness Directive requires operators of Fokker F.28 Mk.0070 and Mk.0100 aircraft to perform a resistance check on engine and APU fire‑extinguisher electrical connectors and to inspect and modify any affected connectors following Fokker Service Bulletin F100‑26‑015. The aim is to prevent disabling of fire‑extinguishing systems caused by uninsulated solder connections. Aircraft operators carry the inspection and modification costs, must meet the Directive’s timing rules, and follow the manufacturer’s technical instructions for any repairs."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with narrow, targeted scope addressing a specific safety defect in a specific aircraft type. It has not expanded beyond its original purpose of mandating inspection and modification of fire extinguisher electrical connectors."},"complexity_factors":["Single aircraft type applicability (Fokker F100 series only)","Three-tiered compliance structure with cascading deadlines (immediate, 12 months, or next scheduled check)","Conditional logic based on test results (short circuit detected vs not detected)","Reference to external technical document (Fokker Service Bulletin F100-26-015) without reproducing its contents","Cross-reference to foreign aviation authority (Netherlands RLD AD 1999-110)","Minimal defined terms (only 'APU' expanded in parentheses)"],"plain_english_summary":"This Airworthiness Directive orders operators of Fokker F100 (F28 Mk 100) aircraft in Australia to inspect and, if needed, repair the electrical wiring to engine and APU fire extinguishers after discovery of missing insulation on soldered connectors that can short-circuit. The checks and corrective action are required because undetected shorts could disable fire extinguishers in an emergency, risking onboard fire suppression."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f100-36-fire-extinguisher-electrical-connectors","history":"/api/acts/ad-f100-36-fire-extinguisher-electrical-connectors/history","analysis":"/api/acts/ad-f100-36-fire-extinguisher-electrical-connectors/analysis","conflicts":"/api/acts/ad-f100-36-fire-extinguisher-electrical-connectors/conflicts","importantCases":"/api/acts/ad-f100-36-fire-extinguisher-electrical-connectors/important-cases","documents":"/api/acts/ad-f100-36-fire-extinguisher-electrical-connectors/documents"}}