AD 2009-06-05 R1

AD Final Rules - 2009-06-05 R1.pdf
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AD Number:
2009-06-05 R1
Document Type:
AD Final Rules
Docket Number:
FAA-2009-1021
Subject Heading:
Airworthiness Directives; Bombardier, Inc. Model CL-600-1A11 (CL- 600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) Airpl... ...Show more
Subject:
Ice and Rain Protection
Status:
Current
Citation:
Federal Register: February 25, 2010
Citation Publish Date:
02/25/2010
Effective Date:
04/01/2010
Make:
Bombardier Inc.
Model:
CL-600-1A11 (CL-600) | CL-600-2A12 (CL-601) | CL-600-2B16 (CL-601-3A) | CL-600-2B16 (CL-601-3R) | CL-600-2B16 (CL-604)
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
2009-06-05
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
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1


[Federal Register: February 25, 2010 (Volume 75, Number 37)]


[Rules and Regulations]


[Page 8461-8465]


From the Federal Register Online via GPO Access [wais.access.gpo.gov]


[DOCID:fr25fe10-1]


––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. FAA-2009-1021; Directorate Identifier 2009-NM-054-AD; Amendment 39-16217;


AD 2009-06-05 R1]


RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-


601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) Airplanes


AGENCY:
 
Federal Aviation Administration (FAA), Department of Transportation (DOT).


ACTION:
 
Final rule.


––––––––––––––––––––––––––––––––––


SUMMARY:
 
We are revising an existing airworthiness directive (AD) for the products listed above.


This AD results from mandatory continuing airworthiness information (MCAI) originated by an


aviation authority of another country to identify and correct an unsafe condition on an aviation


product. The MCAI describes the unsafe condition as:


[S]everal cases of wing anti-ice piccolo duct failure reported on CL-600-2B19 (CRJ)


aircraft. Although there have been no failures reported on Challenger aircraft, similar


ducts are installed on the * * * [other] Challenger models.


*
 
*
 
*
 
*
 
*


Cracking of the wing anti-ice piccolo ducts could result in air leakage, with an adverse


effect on the anti-ice air distribution pattern and a possible unannunciated insufficient


heat condition. * * *


The unsafe condition is anti-ice system air leakage with a possible adverse effect on the anti-ice air


distribution pattern and anti-ice capability without annunciation to the flightcrew, and consequent


reduced controllability of the airplane. We are issuing this AD to require actions to correct the unsafe


condition on these products.


DATES:
 
This AD becomes effective April 1, 2010.


The Director of the Federal Register approved the incorporation by reference of certain


publications listed in this AD as of April 1, 2010.


On April 28, 2009 (74 FR 12225, March 24, 2009), the Director of the Federal Register approved


the incorporation by reference of certain other publications listed in this AD.
2


ADDRESSES:
 
You may examine the AD docket on the Internet at http://www.regulations.gov or in


person at the U.S. Department of Transportation, Docket Operations, M-30, West Building Ground


Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.


FOR FURTHER INFORMATION CONTACT:
 
Dan Parrillo, Aerospace Engineer, Airframe and


Mechanical Systems, ANE-171, FAA, New York Aircraft Certification Office, 1600 Stewart Avenue,


Suite 410, Westbury, New York 11590; telephone (516) 228-7305; fax (516) 794-5531.


SUPPLEMENTARY INFORMATION:


Discussion


We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to revise an


existing AD that applies to certain Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-


600-2B16 (CL-601-3A, CL-601-3R, and CL-604) airplanes. That NPRM was published in the


Federal Register on November 5, 2009 (74 FR 57273), and proposed to revise AD 2009-06-05,


Amendment 39-15841 (74 FR 12225, March 24, 2009). That AD required actions intended to address


an unsafe condition for the products listed above.


Actions Since Issuance of AD 2009-06-05


Since we issued AD 2009-06-05, Bombardier requested that we change paragraphs (f)(2) and


(f)(4) of AD 2009-06-05 to allow compliance within 2,000 flight hours or 60 months after the


effective date of the AD, whichever occurs first, instead of prior to the accumulation of 2,000 total


flight hours or within 60 months after the effective date of the AD, whichever occurs first. We agreed


and proposed to revise paragraphs (f)(2) and (f)(4) of AD 2009-06-05 accordingly in the NPRM. The


compliance time matches the intent of Transport Canada Civil Aviation (TCCA) AD CF-2008-18,


dated May 9, 2008, and represents the maximum interval of time allowable for the affected airplanes


to operate safely.


Bombardier also requested that we change Table 2 of AD 2009-06-05 to replace references to


two temporary revisions (TRs): Canadair TR 600/23, dated August 16, 2006, to the Canadair


Challenger Model CL-600-1A11 Airplane Flight Manual (AFM); and Canadair TR 600-1/19, dated


August 16, 2006, to the Canadair Challenger Model CL-600-1A11 AFM (Winglets). These two TRs


are approved by TCCA, and should be replaced in AD 2009-06-05 with references to the following


FAA-approved TRs: Canadair TR 600/22, dated August 16, 2006, to the Canadair Challenger Model


CL-600-1A11 AFM; and Canadair TR 600-1/17, dated August 16, 2006, to the Canadair Challenger


Model CL-600-1A11 AFM (Winglets). We agreed and proposed to revise Table 2 of AD 2009-06-05


accordingly in the NPRM.


Comments


We gave the public the opportunity to participate in developing this AD. We received no


comments on the NPRM or on the determination of the cost to the public.


Explanation of Change Made to the Manufacturer Name


We have revised this AD to identify the legal name of the manufacturer as published in the most


recent type certificate data sheet for the affected airplane models.