{"id":"F2008L00383","name":"AD/CL-600/95 - Air-Driven Generator - Internal Wiring","slug":"ad-cl-600-95-air-driven-generator-internal-wiring","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":72616,"registerId":"commonwealth-F2008L00383-current","compilationNumber":null,"startDate":"2026-04-02","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-600/95 | Air-Driven Generator - Internal Wiring | 4/2008 DM |\n| ------------ | -------------------------------------- | --------- |\n\n| Applicability: | Model CL-600-2B19 aeroplane with serial numbers (S/N) 7305 through 7990, 8000 and subsequent. |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement: | 1. For aeroplanes with S/N 7305 through 7990 and 8000 through 8083 - |\n| | a. Inspect the S/N of the installed air driven generator (ADG). If the S/N is not listed in paragraph 1.A of Bombardier Aerospace Service Bulletin (SB) 601R-24-113, Revision A, dated 11 August 2005, or later revision approved by the Chief, Continuing Airworthiness, Transport Canada, no further action is necessary. |\n| | b. If as a result of the Requirement 1.a. inspection it is determined that the ADG S/N is listed in the SB inspect the ADG identification plate. If it is marked with the symbol “24-2” (refer Hamilton Sundstrand SBERPS10AG-24-2), no further action is necessary. |\n| | c. If the ADG identification plate is not marked with the symbol “24-2” modify the ADG wiring in accordance with the Accomplishment Instructions in SB 601R-24-113, Revision A, or later revision approved by the Chief, Continuing Airworthiness, Transport Canada. |\n| | Note 1: Previous inspection, and modification as required, in accordance with Bombardier Aerospace SB 601R-24-113, original issue, dated 22 April 2004, or Revision A, dated 11 August 2005, is considered satisfactory for compliance with Requirement 1 of this directive if the ADG has not been replaced since SB incorporation. |\n| | Note 2: It is permissible to satisfy Requirement 1 by a review of the aircraft maintenance records. |\n| | 2 For aeroplanes with S/N 7305 through 7990, 8000 and subsequent - ADGs with part number 604-90800-1 (761339C), 604-90800-17 (761339D) or604-90800-19 (761339E) and with a S/N listed in Table 1 may not be installed on any aeroplane as a replacement spare, unless it is identified with the symbol“24-2” (refer Hamilton Sundstrand SB ERPS10AG-24-2) on the identification plate. |\n\n```html\n

Table 1 - List of Affected S/N
(S/N are inclusive)

0101 to 0132
0134 to 0167
0169 to 0358

0360 to 0438
0440 to 0456
0458 to 0467

0469
0471 to 0590
0592 to 0597

0599 to 0745
0747 to 1005
1400 to 1439

Note 3: Transport Canada AD CF-2008-09 refers.

Compliance:

For Requirement 1 - Within 12 months after the effective date of this Directive.

For Requirement 2 - As of the effective date of this Directive.

This Airworthiness Directive becomes effective on 21 February 2008.

Background:

Following in-flight test deployments, several ADGs failed to come on-line. Investigation revealed that, as a result of a wiring anomaly that had not been detected during ADG manufacture, a short circuit was possible between certain internal wires and their metallic over-braided shields, which could result in the ADG not providing power when deployed. This Directive mandates checking of the ADG and modification of the ADG internal wiring, if required. It also prohibits future installation of unmodified ADGs.

\n```\n\n![](image.001.png) \nDavid Punshon \nDelegate of the Civil Aviation Safety Authority\n\n13 February 2008","sortOrder":0},{"sectionNumber":"AD/CL-600/95","sectionType":"part","heading":"AD/CL-600/95","content":"## AD/CL-600/95","sortOrder":1},{"sectionNumber":"Air-Driven Generator - Internal Wiring","sectionType":"part","heading":"Air-Driven Generator - Internal Wiring","content":"## Air-Driven Generator - Internal Wiring","sortOrder":2},{"sectionNumber":"4/2008 DM","sectionType":"part","heading":"4/2008 DM","content":"## 4/2008 DM","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"No. The directive applies to a defined set of CL‑600‑2B19 aircraft and specific ADG part and serial numbers and directs inspection/modification and an installation prohibition to remedy the identified wiring defect. It accepts prior SB compliance where applicable and allows a records review alternative, so it does not broaden obligations beyond correcting the stated manufacturing anomaly (see Requirements 1–2, Notes 1–2, Compliance)."},"complexity_factors":["Relies on external service bulletin procedures and approvals: compliance requires following Bombardier SB 601R-24-113 Revision A (or later) and any later revision approved by the Chief, Continuing Airworthiness, Transport Canada (Requirement 1.c; Requirement 1.a).","Multiple conditional steps tied to serial‑number and plate markings: operators must inspect ADG S/N lists, then check identification plate marking “24‑2”, then modify wiring only if unmarked (Requirements 1.a–1.c).","Large, non‑contiguous S/N ranges listed in Table 1 increase administrative burden for parts traceability and record reviews (Table 1).","Prohibition on replacement installation: ADGs with specified part numbers and S/Ns may not be installed as spares unless marked “24‑2” (Requirement 2) — creates ongoing supply/maintenance constraints for operators and parts managers.","Permits record‑review alternative to physical inspection, reducing physical work but increasing reliance on maintenance records accuracy (Note 2).","Acknowledges prior compliance under earlier SB issues if ADG not replaced since SB incorporation, creating a conditional compliance status that requires verification of ADG history (Note 1).","Compliance timing split: inspection/modification required within 12 months for Requirement 1, whereas the replacement prohibition is effective immediately (Compliance paragraph).","Technical modification work: wiring modification must follow Accomplishment Instructions in the SB and will require qualified maintenance resources and potential downtime.","Cross‑jurisdictional reference: Note referencing Transport Canada AD CF-2008-09 adds an external regulatory cross‑check (Note 3)."],"plain_english_summary":"Mandates checks and, if needed, wiring modification of air‑driven generators (ADGs) on Bombardier CL‑600‑2B19 aircraft (S/N 7305–7990, 8000+) by verifying ADG serial numbers and the presence of a “24‑2” identification‑plate marking; prohibits installing specified ADG part/serial numbers as replacement spares unless they are so marked. The directive implements Bombardier Service Bulletin procedures to correct a manufacturing wiring anomaly that can prevent an ADG from providing power when deployed."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific wiring defect in specific ADG units on specific CL-600-2B19 aircraft. The requirements remain tightly focused on inspection, modification, and parts prohibition for this single safety issue."},"complexity_factors":["Multiple serial number ranges with different requirements (7305–7990 vs 8000+)","Nested conditional logic: check list → check marking → modify if needed","Cross-reference to external technical documents (Bombardier SB 601R-24-113, Hamilton Sundstrand SB ERPS10AG-24-2)","Table of affected serial numbers with non-continuous ranges (gaps at 0133, 0168, 0359, 0439, 0457, 0468, 0470, 0591, 0598, 0746)","Two distinct compliance timelines (12 months vs immediate)","Alternative compliance method permitted (maintenance records review)","Grandfathering clause for previously completed work under earlier service bulletin revisions"],"plain_english_summary":"This CASA Airworthiness Directive targets Bombardier Challenger CL-600-2B19 aircraft (serials 7305–7990 and 8000 onward) to address a manufacturing defect in Air-Driven Generators whose internal wiring can short against shielding and fail during emergency deployment. It requires operators to verify ADG status or have wiring modified and bars installation of unmarked spare ADGs, preventing unmodified units entering service. The measure protects against loss of backup electrical power in an emergency."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-cl-600-95-air-driven-generator-internal-wiring","history":"/api/acts/ad-cl-600-95-air-driven-generator-internal-wiring/history","analysis":"/api/acts/ad-cl-600-95-air-driven-generator-internal-wiring/analysis","conflicts":"/api/acts/ad-cl-600-95-air-driven-generator-internal-wiring/conflicts","importantCases":"/api/acts/ad-cl-600-95-air-driven-generator-internal-wiring/important-cases","documents":"/api/acts/ad-cl-600-95-air-driven-generator-internal-wiring/documents"}}