{"id":"F2009L02257","name":"AD/CL-600/108 - Air Driven Generator Power Feeder Harness","slug":"ad-cl-600-108-air-driven-generator-power-feeder-harness","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":162099,"registerId":"commonwealth-F2009L02257-current","compilationNumber":null,"startDate":"2026-04-04","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Bombardier (Canadair) CL-600 (Challenger","sectionType":"division","heading":"Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes","content":"### Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes\n\n| AD/CL-600/108 | Air Driven Generator Power Feeder Harness | 7/2009 |\n| ------------- | ----------------------------------------- | ------ |\n\n```html\n

Applicability:

CL-600 series aeroplanes as follows:

Model

CL-600-1A11 (600 Variant)
CL-600-2A12 (601 Variant)
CL-600-2B16 (601-3A Variant)

Serial Number Range

1004 through 1085
3001 through 3066
5001 through 5131

Requirement:

1. If not previously accomplished, inspect the Air Driven Generator (ADG) power feeder harness for wire type, in accordance with the Accomplishment Instructions in Part A of Bombardier Service Bulletin (SB) 600-0737 or 601-0591 (as applicable), both dated 23 July 2007. If the wire type is not Kapton, complete the instruction in Part A of the applicable SB and compliance with Directive is complete.

2. If the wire type is Kapton, replace the ADG power feeder harness in accordance with the Accomplishment Instructions in Part B of SB 600-0737 or 601-0591 (as applicable).

Later revisions of the above SBs, approved by the Chief, Continuing Airworthiness, Transport Canada are acceptable for compliance with this Directive.

Note: Transport Canada AD CF-2009-18 refers.

Compliance:

Before 19 July 2011.

This Airworthiness Directive becomes effective on 2 July 2009.

Background:

Transport Canada has received two reports of instances in which the ADG has failed to power the essential bus following in-flight deployment as part of its periodic operational check. Subsequent inspection revealed that the ADG power feeder harness wire (Kapton) had chafed on the backshell of its own connector (P1XC), resulting in a short circuit, wire damage and disconnection of the wire from the ADG. Coupled with a dual generator failure, such a disconnection would result in the loss of emergency power to critical systems, with a consequent adverse effect on the controllability of the aircraft.

\n```\n\n| | This Directive mandates an inspection to determine the type of wire in the installed ADG power feeder harness. If the wires are a Kapton type, the ADG power feeder harness is to be replaced with one incorporating non-Kapton type wire. |\n| --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n\n![](image.001.png) \nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n18 May 2009","sortOrder":0},{"sectionNumber":"AD/CL-600/108","sectionType":"part","heading":"AD/CL-600/108","content":"## AD/CL-600/108","sortOrder":1},{"sectionNumber":"Air Driven Generator Power Feeder Harnes","sectionType":"part","heading":"Air Driven Generator Power Feeder Harness","content":"## Air Driven Generator Power Feeder Harness","sortOrder":2},{"sectionNumber":"7/2009","sectionType":"part","heading":"7/2009","content":"## 7/2009","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"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, targeted airworthiness directive addressing a specific safety-of-flight issue with a particular aircraft system. The scope remains precisely focused on the ADG power feeder harness defect as originally identified by Transport Canada."},"complexity_factors":["Single, clearly defined applicability table with specific model numbers and serial number ranges (3 variants, 3 serial ranges)","Straightforward two-step conditional logic: inspect → replace only if Kapton wire found","References external technical documents (Bombardier Service Bulletins 600-0737 and 601-0591) for detailed procedures","No nested exceptions or complex cross-referencing within the instrument itself","Single compliance deadline with no phased or flight-hour-based requirements","Minimal defined terms (only 'Kapton' as a wire type requiring industry knowledge)"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of specified Bombardier Challenger CL‑600 series jets to inspect the Air Driven Generator (ADG) power feeder harness for Kapton‑insulated wire and, if found, replace the harness with non‑Kapton wiring. Compliance was mandatory by 19 July 2011. The action prevents chafing‑induced shorts that could disable emergency ADG power and critical flight systems."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive applies to the specific CL-600 models and serial ranges listed and imposes an inspection with conditional replacement as described. There is no indication in the source text that the Directive's scope has been altered from its original stated purpose."},"complexity_factors":["Conditional two-step requirement: inspect first, then replace only if wire type is Kapton (adds a decision point).","Dependence on external documents: compliance requires following Part A/Part B of Bombardier Service Bulletin (SB 600-0737 or 601-0591) dated 23 July 2007 (or later approved revisions).","Narrow applicability: limited to specific CL-600 models and explicit serial-number ranges, requiring operators to verify serial records.","Fixed compliance timeline (before 19 July 2011) creates scheduling and resource constraints for operators and maintenance providers.","Technical replacement may require parts and authorised maintenance facilities, imposing direct costs and operational downtime.","Regulatory cross-reference: acceptance of later SB revisions only if approved by the Chief, Continuing Airworthiness, Transport Canada introduces third-party approval dependency."],"plain_english_summary":"This Airworthiness Directive requires operators of specified Bombardier CL‑600 series aeroplanes (listed models and serial ranges) to inspect the Air Driven Generator (ADG) power‑feeder harness wire. If the wire is Kapton, the harness must be replaced with a non‑Kapton wired harness following the applicable Bombardier Service Bulletin; compliance is due by 19 July 2011 (effective 2 July 2009).\n\nOperators (who bear the cost) and authorised maintenance organisations must carry out the inspection and any replacement. The action responds to reports that Kapton wire chafed on a connector, causing ADG failure and risking loss of emergency power."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cl-600-108-air-driven-generator-power-feeder-harness","history":"/api/acts/ad-cl-600-108-air-driven-generator-power-feeder-harness/history","analysis":"/api/acts/ad-cl-600-108-air-driven-generator-power-feeder-harness/analysis","conflicts":"/api/acts/ad-cl-600-108-air-driven-generator-power-feeder-harness/conflicts","importantCases":"/api/acts/ad-cl-600-108-air-driven-generator-power-feeder-harness/important-cases","documents":"/api/acts/ad-cl-600-108-air-driven-generator-power-feeder-harness/documents"}}