# AD 91-19-01: Air Driven Generator - Type: Airworthiness directive - Status: Current - Products: Bombardier CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A), CL-600-2B16 (CL-601-3R) and CL-600-2B16 (CL-604) - Effective: September 24, 1991 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - Amendment: 39-8026 - Docket: 91-NM-161-AD - Registered aircraft: 598 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/07207C4866EAF3D586256A1D005E3A97.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/91-19-01 ## The airworthiness directive 91-19-01 CANADAIR, LTD.: Amendment 39-8026. Docket No. 91-NM-161-AD. Applicability: Model CL-600-1A11 series airplanes, serial numbers 1004 through 1085; Model CL-600-2A12 series airplanes, serial numbers 3001 through 3066; and Model CL-600-2B16 series airplanes, serial numbers 5001 through 5098; certificated in any category. Compliance: Required as indicated, unless previously accomplished. To prevent loss of emergency power to the essential bus when the air driven generator (ADG) is deployed, accomplish the following: (a) Within 25 hours time-in-service after the effective date of this AD, inspect the ADG wiring harness to detect chafing, in accordance with Canadair Service Bulletin A600-0612 (for Model CL-600-1A11 series airplanes), dated April 24, 1991, or Canadair Service Bulletin A601-0370 (for Model CL-600-2A12 and CL-600-2B16 series airplanes), dated April 24, 1991. If chafing is found, prior to further flight, repair in accordance with the applicable service bulletin previously described. (b) Within 60 days after the effective date of this AD, modify the ADG harness installation in accordance with Canadair Service Bulletin A600-0612 (for Model CL-600-1A11 series airplanes), dated April 24, 1991, or Canadair Service Bulletin A601-0370 (for Model CL- 600-2A12 and CL-600-2B16 series airplanes), dated April 24, 1991. (c) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, New York Aircraft Certification Office, ANE-170, FAA, Engine and Propeller Directorate. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, New York Aircraft Certification Office, ANE-170. (d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of thisAD. (e) The inspection, repair, and modification requirements shall be done in accordance with Canadair Service Bulletin A600-0612 (for Model CL-600-1A11 series airplanes), dated April 24, 1991, or Canadair Service Bulletin A601-0370 (for Model CL-600-2A12 and CL-600-2B16 series airplanes), dated April 24, 1991. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station A, Montreal, Quebec, Canada H3C 3G9. Copies may be inspected at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington; at the FAA, New England Region, New York Aircraft Certification Office, 181 South Franklin Avenue, Room 202, Valley Stream, New York; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C. This amendment (39-8026, AD 91-19-01) becomes effective on September 24, 1991. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A21EA](https://openairdocs.org/tcds/A21EA): Bombardier Inc.; names 3 of 5 models: CL-600-1A11 (600), CL-600-2A12 (601), CL-600-2B16 (604 Variant) ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 598 (598 by airframe model, 0 by engine model) - Makers: Bombardier 432, Canadair 164, Bombardier Aerospace 1, Canadair Bombardier 1 Models with the most aircraft: - [Bombardier CL-600-2B16](https://openairdocs.org/model/bombardier-cl-600-2b16): 388 aircraft (airframe model) - [Canadair CL-600-2B16](https://openairdocs.org/model/canadair-cl-600-2b16): 134 aircraft (airframe model) - [Bombardier CL-600-2B16(CL-604)](https://openairdocs.org/model/bombardier-cl-600-2b16-cl-604): 42 aircraft (airframe model) - [Canadair CL-600-2A12](https://openairdocs.org/model/canadair-cl-600-2a12): 19 aircraft (airframe model) - [Canadair CL-600-1A11](https://openairdocs.org/model/canadair-cl-600-1a11): 5 aircraft (airframe model) - [Canadair CL600-2B16(CL601-3A)](https://openairdocs.org/model/canadair-cl600-2b16-cl601-3a): 3 aircraft (airframe model) - [Canadair CL600-1A11](https://openairdocs.org/model/canadair-cl600-1a11): 2 aircraft (airframe model) - [Bombardier CL-600-2A12](https://openairdocs.org/model/bombardier-cl-600-2a12): 1 aircraft (airframe model) - [Bombardier CL600-2B16 (CL601-3A](https://openairdocs.org/model/bombardier-cl600-2b16-cl601-3a): 1 aircraft (airframe model) - [Bombardier Aerospace CL-600-2B16 (CL-604)](https://openairdocs.org/model/bombardier-aerospace-cl-600-2b16-cl-604): 1 aircraft (airframe model) - [Canadair Bombardier CL-600-2B16](https://openairdocs.org/model/canadair-bombardier-cl-600-2b16): 1 aircraft (airframe model) - [Canadair CL-600-2A12(CL-601)](https://openairdocs.org/model/canadair-cl-600-2a12-cl-601): 1 aircraft (airframe model) All 12 models: https://openairdocs.org/ad/91-19-01/models.md Every aircraft: https://openairdocs.org/ad/91-19-01/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.