```

[Federal Register Volume 78, Number 74 (Wednesday, April 17, 2013)]
[Proposed Rules]
[Pages 22806-22808]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-09008]

-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-0332; Directorate Identifier 2013-NM-009-AD]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Bombardier, Inc. Model CL-600-2B16 (CL-601-3A, CL-601-3R, and 
CL-604 Variants) airplanes. This proposed AD was prompted by reports of 
airspeed mismatch between the pilot and co-pilot's airspeed indicators, 
which occurred during or after heavy rain. This proposed AD would 
require, for certain airplanes, inspecting for drain bottles having 
certain part numbers, and replacing affected drain bottles. This 
proposed AD would require, for certain other airplanes, replacing drain 
bottles. We are proposing this AD to prevent pitot static tubing from 
becoming blocked by water, which if not corrected, could lead to 
erroneous airspeed and altitude indications, and consequent loss of 
control of the airplane.

DATES: We must receive comments on this proposed AD by June 3, 2013.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: (202) 493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday 
through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec 
H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-7401; email 
thd.crj@aero.bombardier.com; Internet http://www.bombardier.com. You 
may review copies of the referenced service information at the FAA, 
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 425-
227-1221.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov; or in person at the Docket Operations office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this proposed AD, the regulatory 
evaluation, any comments received, and other information. The street 
address for the Docket Operations office (telephone (800) 647-5527) is 
in the ADDRESSES section. Comments will be available in the AD docket 
shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer, 
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft 
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury, 
New York 11590; telephone (516) 228-7318; fax (516) 794-5531.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2013-0332; 
Directorate Identifier 2013-NM-009-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD based on those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    Transport Canada Civil Aviation, which is the aviation authority 
for Canada, has issued Canadian Airworthiness Directive CF-2012-30, 
dated December 7, 2012 (referred to after this as the Mandatory 
Continuing Airworthiness Information, or ``the MCAI''), to correct an 
unsafe condition for the specified products. The MCAI states:

A number of reports were received from the operators indicating 
airspeed mismatch between the pilot and co-pilot's airspeed 
indicators. The erroneous indication occurred during or after heavy 
rain. Further investigation revealed that during heavy 
precipitation, the pitot static tubing may become partially or 
completely blocked by the water which didn't enter the drain 
bottle(s). This condition, if not corrected, may result in erroneous 
airspeed and altitude indications [and consequent loss of control of 
the airplane].

This [Canadian] AD mandates [for certain airplanes] the replacement 
of the drain bottles to improve drainage of the pitot-static tubing 
[and, for certain other airplanes, an inspection for, and 
replacement of, certain drain bottles].

    You may obtain further information by examining the MCAI in the AD 
docket.

Relevant Service Information

    Bombardier, Inc. has issued the following service bulletins. The 
actions described in this service information are intended to correct 
the unsafe condition identified in the MCAI.
     Bombardier Service Bulletin 601-0617, Revision 03, dated 
December 20, 2012.
     Bombardier Service Bulletin 604-34-065, Revision 02, dated 
December 20, 2012.
     Bombardier Service Bulletin 605-34-027, Revision 02, dated 
December 20, 2012.

FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all pertinent information and determined an unsafe condition 
exists and is likely to exist or develop on other products of the same 
type design.

Costs of Compliance

    Based on the service information, we estimate that this proposed AD 
would affect about 77 products of U.S. registry. We also estimate that 
it would take about 5 work-hours per product to comply with the basic 
requirements of this proposed AD. The average labor rate is $85 per 
work-hour. Required parts would cost up to $2,939 per

[[Page 22807]]

product. Where the service information lists required parts costs that 
are covered under warranty, we have assumed that there will be no 
charge for these parts. As we do not control warranty coverage for 
affected parties, some parties may incur costs higher than estimated 
here. Based on these figures, we estimate the cost of the proposed AD 
on U.S. operators to be $259,028, or $3,364 per product.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify this proposed 
regulation:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska; and
    4. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this proposed AD and placed it in the AD docket.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new AD:

Bombardier, Inc.: Docket No. FAA-2013-0332; Directorate Identifier 
2013-NM-009-AD.

(a) Comments Due Date

    We must receive comments by June 3, 2013.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to the airplanes specified in paragraphs (c)(1) 
and (c)(2) of this AD, certificated in any category.
    (1) Bombardier, Inc. Model CL-600-2B16 (CL-601-3A and CL-601-3R 
Variants) airplanes, serial numbers 5001 through 5194 inclusive.
    (2) Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) 
airplanes, serial numbers 5301 through 5665 inclusive, and 5701 
through 5918 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 34, Navigation.

(e) Reason

    This AD was prompted by reports of airspeed mismatch between the 
pilot and co-pilot's airspeed indicators, which occurred during or 
after heavy rain. We are issuing this AD to prevent pitot static 
tubing from becoming blocked by water, which if not corrected, could 
lead to erroneous airspeed and altitude indications, and consequent 
loss of control of the airplane.

(f) Compliance

    You are responsible for having the actions required by this AD 
performed within the compliance times specified, unless the actions 
have already been done.

(g) Inspection and Replacement for Certain Model CL-600-2B16 (CL-601-3A 
and CL-601-3R) Variants Airplanes

    For Model CL-600-2B16 (CL-601-3A and CL-601-3R Variants) 
airplanes having serial numbers 5001 through 5194 inclusive: Within 
24 months after the effective date of this AD, inspect for drain 
bottles having part number (P/N) 50029-001, 50030-001, 9035000, 
9035001, 9435014, 9435015, or 601A51704-5.
    (1) If none of the part numbers identified in paragraph (g) of 
this AD are found, no further action is required by this paragraph 
for that airplane.
    (2) If any part number identified in paragraph (g) of this AD is 
found: Before further flight, replace the drain bottles that are 
installed on the pitot and static lines of the air data computers 
(ADC), in accordance with the Accomplishment Instructions of 
Bombardier Service Bulletin 601-0617, Revision 03, dated December 
20, 2012.

(h) Replacement for Certain Model CL-600-2B16 (CL-604 Variant) 
Airplanes

    For Model CL-600-2B16 (CL-604 Variant) airplanes having serial 
numbers 5301 through 5665 inclusive: Within 24 months after the 
effective date of this AD, replace drain bottles installed on the 
pitot and static lines of the ADCs, in accordance with the 
Accomplishment Instructions of Bombardier Service Bulletin 604-34-
065, Revision 02, dated December 20, 2012.

(i) Replacement for Certain Other Model CL-600-2B16 (CL-604 Variants) 
Airplanes

    For Model CL-600-2B16 (CL-604 Variant) airplanes having serial 
numbers 5701 through 5918 inclusive: Within 24 months after the 
effective date of this AD, replace drain bottles installed on the 
pitot and static lines of the ADCs, in accordance with the 
Accomplishment Instructions of Bombardier Service Bulletin 605-34-
027, Revision 02, dated December 20, 2012.

(j) Parts Installation Prohibitions

    (1) As of the effective date of this AD, no person may install 
drain bottles having P/N 50029-001, 50030-001, 9035000, 9035001, 
9435014, 9435015, or 601A51704-5 on any Model CL-600-2B16 (CL-601-3A 
and CL-601-3R Variants) airplane.
    (2) As of the effective date of this AD, no person may install 
drain bottles having P/N 50029-001, 50030-001, 9035000, 9035001, 
9435014, or 9435015 on the pitot and static lines of the ADCs; or 
drain bottles having P/N 50030-001, 50034-002, 9435014, or 9035001 
on the pitot line of the integrated stand-by instrument (ISI); on 
any Model CL-600-2B16 (CL-604 Variant) airplanes, S/N 5301 through 
5665 inclusive.
    (3) As of the effective date of this AD, no person may install 
drain bottles having P/N 50029-001 or 50030-001 on the pitot and 
static lines of the ADCs; or P/N 50030-001 or 50034-002 on the pitot 
line of the ISI; on any Model CL-600-2B16 (CL-604 Variant) 
airplanes.

(k) Credit for Previous Actions

    (1) This paragraph provides credit for actions required by 
paragraph (g) of this AD, if those actions were performed before the 
effective date of this AD using a service bulletin specified in 
paragraphs (k)(1)(i) through (k)(1)(iii) of this AD.
    (i) Bombardier Service Bulletin 601-0617, Revision 02, dated 
November 14, 2012, which is not incorporated by reference in this 
AD.

[[Page 22808]]

    (ii) Bombardier Service Bulletin 601-0617, Revision 01, dated 
November 12, 2012, which is not incorporated by reference in this 
AD.
    (iii) Bombardier Service Bulletin 601-0617, dated July 31, 2012, 
which is not incorporated by reference in this AD.
    (2) This paragraph provides credit for actions required by 
paragraph (h) of this AD, if those actions were performed before the 
effective date of this AD using a service bulletin specified in 
paragraph (k)(2)(i) or (k)(2)(ii) of this AD.
    (i) Bombardier Service Bulletin 604-34-065, Revision 01, dated 
October 15, 2012, which is not incorporated by reference in this AD.
    (ii) Bombardier Service Bulletin 604-34-065, dated July 31, 
2012, which is not incorporated by reference in this AD.
    (3) This paragraph provides credit for actions required by 
paragraph (i) of this AD, if those actions were performed before the 
effective date of this AD using a service bulletin specified in 
paragraph (k)(3)(i) or (k)(3)(ii) of this AD.
    (i) Bombardier Service Bulletin 605-34-027, Revision 01, dated 
October 15, 2012, which is not incorporated by reference in this AD.
    (ii) Bombardier Service Bulletin 605-34-027, dated July 31, 
2012, which is not incorporated by reference in this AD.

(l) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft Certification Office, (ACO), ANE-170, FAA, has the 
authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, 
send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the ACO, send it to ATTN: Program Manager, Continuing 
Operational Safety, FAA, New York ACO, 1600 Stewart Avenue, Suite 
410, Westbury, NY 11590; telephone 516-228-7300; fax 516-794-5531. 
Before using any approved AMOC, notify your appropriate principal 
inspector, or lacking a principal inspector, the manager of the 
local flight standards district office/certificate holding district 
office. The AMOC approval letter must specifically reference this 
AD.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.

(m) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian Airworthiness Directive CF-2012-30, dated December 
7, 2012, and the service information specified in paragraphs 
(m)(1)(i) through (m)(1)(iii) of this AD, for related information.
    (i) Bombardier Service Bulletin 601-0617, Revision 03, dated 
December 20, 2012.
    (ii) Bombardier Service Bulletin 604-34-065, Revision 02, dated 
December 20, 2012.
    (iii) Bombardier Service Bulletin 605-34-027, Revision 02, dated 
December 20, 2012.
    (2) For service information identified in this AD, contact 
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; email thd.crj@aero.bombardier.com; Internet http://www.bombardier.com. You may review copies of the referenced service 
information at the FAA, Transport Airplane Directorate, 1601 Lind 
Avenue SW., Renton, WA. For information on the availability of this 
material at the FAA, call 425-227-1221.

    Issued in Renton, Washington, on April 5, 2013.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2013-09008 Filed 4-16-13; 8:45 am]
BILLING CODE 4910-13-P
```