[Federal Register Volume 60, Number 45 (Wednesday, March 8, 1995)]
[Rules and Regulations]
[Pages 12666-12667]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-4256]



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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

14 CFR Part 39

[Docket No. 94-NM-97-AD; Amendment 39-9157; AD 95-04-05]


Airworthiness Directives; Bombardier (Formerly Canadair) Model 
CL-600-2B19 (Regional Jet Series 100) Series Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule.

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SUMMARY: This amendment adopts a new airworthiness directive (AD), 
applicable to certain Bombardier Model CL-600-2B19 (Regional Jet Series 
100) series airplanes, that requires various modifications of the 
passenger doors. This amendment is prompted by reports that some 
passenger doors froze shut during flight and could not be opened after 
landing the airplane. The actions specified by this AD are intended to 
prevent the passenger doors from freezing shut, and consequently, 
prohibiting the passengers from exiting the airplane in the event of an 
emergency.

DATES: Effective April 7, 1995.
    The incorporation by reference of certain publications listed in 
the regulations is approved by the Director of the Federal Register as 
of April 7, 1995.

ADDRESSES: The service information referenced in this AD may be 
obtained from Bombardier, Inc., Bombardier Regional Aircraft Division, 
Garratt Boulevard, Downsview, Ontario, Canada M3K 1Y5. This information 
may be examined at the Federal Aviation Administration (FAA), Transport 
Airplane Directorate, Rules Docket, 1601 Lind Avenue, SW., Renton, 
Washington; or at the FAA, Engine and Propeller Directorate, New York 
Aircraft Certification Office, 10 Fifth Street, Third Floor, Valley 
Stream, New York; or at the Office of the Federal Register, 800 North 
Capitol Street NW., suite 700, Washington, DC.

FOR FURTHER INFORMATION CONTACT: Michele Maurer, Aerospace Engineer, 
Systems and Equipment Branch, ANE-173, FAA, Engine and Propeller 
Directorate, New York Aircraft Certification Office, 10 Fifth Street, 
Third Floor, Valley Stream, New York 11581; telephone (516) 256-7508; 
fax (516) 568-2716; telephone (516) 791-6427; fax (516) 791-9024.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal 
Aviation Regulations (14 CFR part 39) to include an airworthiness 
directive (AD) that is applicable to certain Bombardier Model CL-600-
2B19 (Regional Jet Series 100) series airplanes was published in the 
Federal Register on October 28, 1994 (59 FR 54136). That action 
proposed to require various modifications of the passenger doors.
    Interested persons have been afforded an opportunity to participate 
in the making of this amendment. No comments were submitted in response 
to the proposal or the FAA's determination of the cost to the public.
    The final rule has been revised to reflect the manufacturer's 
corporate name change from Canadair to ``Bombardier, Inc.''
    Additionally, as a result of recent communications with the Air 
Transport Association (ATA) of America, the FAA has learned that, in 
general, some operators may misunderstand the legal effect of AD's on 
airplanes that are identified in the applicability provision of the AD, 
but that have been altered or repaired in the area addressed by the AD. 
The FAA points out that all airplanes identified in the applicability 
provision of an AD are legally subject to the AD. If an airplane has 
been altered or repaired in the affected area in such a way as to 
affect compliance with the AD, the owner or operator is required to 
obtain FAA approval for an alternative method of compliance with the 
AD, in accordance with the paragraph of each AD that provides for such 
approvals. A note has been added to this final rule to clarify this 
long-standing requirement.
    After careful review of the available data the FAA has determined 
that air safety and the public interest require the adoption of the 
rule with the changes previously described. The FAA has determined that 
these changes will neither increase the economic burden on any operator 
nor increase the scope of the AD.
    The FAA estimates that 17 airplanes of U.S. registry will be 
affected by this AD, that it will take approximately 67 work hours per 
airplane to accomplish the required actions, and that the average labor 
rate is $60 per work hour. Required parts will cost approximately 
$10,945 per airplane. Based on these figures, the total cost impact of 
the AD on U.S. operators is estimated to be $254,405, or $14,965 per 
airplane.
    The total cost impact figure discussed above is based on 
assumptions that no operator has yet accomplished any of the 
requirements of this AD action, and that no operator would accomplish 
those actions in the future if this AD were not adopted.
    The regulations adopted herein will not have substantial direct 
effects 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. Therefore, in 
accordance with Executive Order 12612, it is determined that this final 
rule does not have sufficient federalism implications to warrant the 
preparation of a Federalism Assessment.
    For the reasons discussed above, I certify that this action (1) is 
not a ``significant regulatory action'' under Executive Order 12866; 
(2) is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979); and (3) 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. A final evaluation has been prepared for this action 
and it is contained in the Rules Docket. A copy of it may be obtained 
from the Rules Docket at the location provided under the caption 
ADDRESSES.
List of Subjects in 14 CFR Part 39
    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.
Adoption of the Amendment

    Accordingly, pursuant to the authority delegated to me by the 
Administrator, the Federal Aviation Administration amends part 39 of 
the Federal Aviation Regulations (14 CFR part 39) as follows:
PART 39--AIRWORTHINESS DIRECTIVES
    1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. App. 1354(a), 1421 and 1423; 49 U.S.C. 
106(g); and 14 CFR 11.89.
Sec. 39.13  [Amended]
    2. Section 39.13 is amended by adding the following new 
airworthiness directive:

95-04-05  Bombardier, Inc. (Formerly Canadair): Amendment 39-9157. 
Docket 94-NM-97-AD.

    Applicability: Model CL-600-2B19 (Regional Jet Series 100) 
series airplanes, serial numbers 7003 and subsequent, certificated 
in any category.

    Note 1: This AD applies to each airplane identified in the 
preceding applicability provision, regardless of whether it has been 
[[Page 12667]] modified, altered, or repaired in the area subject to 
the requirements of this AD. For airplanes that have been modified, 
altered, or repaired so that the performance of the requirements of 
this AD is affected, the owner/operator must use the authority 
provided in paragraph (h) to request approval from the FAA. This 
approval may address either no action, if the current configuration 
eliminates the unsafe condition; or different actions necessary to 
address the unsafe condition described in this AD. Such a request 
should include an assessment of the effect of the changed 
configuration on the unsafe condition addressed by this AD. In no 
case does the presence of any modification, alteration, or repair 
remove any airplane from the applicability of this AD.

    Compliance: Required as indicated, unless accomplished 
previously.
    To prevent the inability of passengers to exit the airplane in 
the event of an emergency, accomplish the following:
    (a) For airplanes having serial numbers 7004 through 7028, 
inclusive: Within 14 days after the effective date of this AD, and 
thereafter at intervals not to exceed 3 days until the action 
required by paragraph (e)(2) of this AD is accomplished, apply an 
anti-icing agent to the operating mechanisms of the passenger door 
in accordance with Canadair Alert Service Bulletin S.B. A601R-52-
002, Revision `C,' dated December 1, 1993.
    (b) For airplanes having serial numbers 7004 through 7006, 
inclusive, and 7008 through 7010, inclusive: Within 14 days after 
the effective date of this AD, and thereafter at intervals not to 
exceed 300 hours time-in-service until the actions required by 
paragraphs (e)(1) and (e)(3) of this AD are accomplished, apply 
grease to the passenger door latch-pin fittings in accordance with 
Canadair Service Bulletin S.B. 601R-52-007, Revision `B,' dated 
December 1, 1993.
    (c) For airplanes having serial numbers 7004 through 7006, 
inclusive, and 7008 through 7010, inclusive: Within 14 days after 
the effective date of this AD, deactivate the pull-out handle 
located on the outside of the passenger door, in accordance with 
Canadair Alert Service Bulletin S.B. A601R-52-008, Revision `B,' 
dated December 1, 1993.
    (d) For airplanes having serial numbers 7004 through 7019, 
inclusive: Within 14 days after the effective date of this AD, 
install sealed insulation packages to the interior of the passenger 
door in accordance with Canadair Service Bulletin S.B. 601R-52-006, 
Revision `B,' dated December 1, 1993.
    (e) Within 60 days or 600 hours time-in-service after the 
effective date of this AD, whichever occurs first, accomplish the 
procedures specified in paragraphs (e)(1), (e)(2), and (e)(3) of 
this AD:
    (1) For airplanes having serial numbers 7004 through 7024, 
inclusive: Modify the passenger door latch pin fittings, and install 
grease retain, grease tube, and nipple assembly; and grease the 
latch pins in accordance with paragraphs 2A and 2B of the 
Accomplishment Instructions of Canadair Alert Service Bulletin S.B. 
A601R-52-009, Revision `B,' dated December 1, 1993.
    (2) For airplanes having serial numbers 7004 through 7028, 
inclusive: Modify the outer handle of the passenger door in 
accordance with Canadair Alert Service Bulletin S.B. A601R-52-021, 
Revision `A,' dated December 7, 1993. Repetitive applications of an 
anti-ice agent, as required by paragraph (a) of this AD, must be 
discontinued upon accomplishment of the modification required by 
this paragraph.
    (3) For airplanes having serial numbers 7004 through 7024, 
inclusive: Install placards adjacent to the door latch pins on the 
passenger door structure in accordance with Canadair Service 
Bulletin S.B. 601R-11-007, dated December 1, 1993.
    (f) Accomplishment of the actions required by paragraphs (e)(1) 
and (e)(3) of this AD constitutes terminating action for the 
repetitive greasing requirements of paragraph (b) of this AD.
    (g) For airplanes having serial numbers 7003 and subsequent: 
Within 300 hours time-in-service after accomplishing the applicable 
modifications required by paragraphs (e)(1), (e)(2), and (e)(3) of 
this AD, and thereafter at intervals not to exceed 300 hours time-
in-service, accomplish the lubrication procedures in specified 
paragraphs (g)(1) and (g)(2) of this AD.
    (1) Lubricate the passenger door latch pins in accordance with 
paragraph 2B, Part ``A,'' Items (26) through (28), of the 
Accomplishment Instructions of Canadair Alert Service Bulletin S.B. 
A601R-52-009, Revision B, dated December 1, 1993.
    (2) Lubricate the passenger door outer handle assembly in 
accordance with paragraph 2B, Item (28), of the Accomplishment 
Instructions of Canadair Alert Service Bulletin S.B. A601R-52-021, 
Revision A, dated December 7, 1993.
    (h) An alternative method of compliance or adjustment of the 
compliance time that provides an acceptable level of safety may be 
used if approved by the Manager, New York Aircraft Certification 
Office (ACO), FAA, Engine and Propeller Directorate. Operators shall 
submit their requests through an appropriate FAA Principal 
Maintenance Inspector, who may add comments and then send it to the 
Manager, New York ACO.

    Note 2: Information concerning the existence of approved 
alternative methods of compliance with this AD, if any, may be 
obtained from the New York ACO.

    (i) Special flight permits may be issued in accordance with 
sections 21.197 and 21.199 of the Federal Aviation Regulations (14 
CFR 21.197 and 21.199) to operate the airplane to a location where 
the requirements of this AD can be accomplished.
    (j) The actions shall be done in accordance with Canadair Alert 
Service Bulletin S.B. A601R-52-002, Revision `C,' dated December 1, 
1993; Canadair Service Bulletin S.B. 601R-52-007, Revision `B', 
dated December 1, 1993; Canadair Alert Service Bulletin S.B. A601R-
52-008, Revision `B', dated December 1, 1993; Canadair Service 
Bulletin S.B. 601R-52-006, Revision `B', dated December 1, 1993; 
Canadair Alert Service Bulletin S.B. A601R-52-009, Revision `B', 
dated December 1, 1993; Canadair Alert Service Bulletin S.B. A601R-
52-021, Revision `A', dated December 7, 1993; and Canadair Service 
Bulletin S.B. 601R-11-007, dated December 1, 1993; as applicable. 
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., Bombardier 
Regional Aircraft Division, Garratt Boulevard, Downsview, Ontario, 
Canada M3K 1Y5. Copies may be inspected at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or 
at the FAA, Engine and Propeller Directorate, New York Aircraft 
Certification Office, 10 Fifth Street, Third Floor, Valley Stream, 
New York 11581; or at the Office of the Federal Register, 800 North 
Capitol Street NW., suite 700, Washington, DC.
    This amendment becomes effective on April 17, 1995.

    Issued in Renton, Washington, on February 15, 1995.
Darrell M. Pederson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 95-4256 Filed 3-7-95; 8:45 am]
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