Airworthiness Directives; Bombardier Model CL-600-2B19 Series Airplanes

[Federal Register Volume 66, Number 120 (Thursday, June 21, 2001)]
[Rules and Regulations]
[Pages 33168-33170]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-15573]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2001-NM-33-AD; Amendment 39-12280; AD 2001-12-24]
RIN 2120-AA64


Airworthiness Directives; Bombardier Model CL-600-2B19 Series 
Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule.

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SUMMARY: This amendment supersedes an existing airworthiness directive 
(AD), applicable to certain Bombardier Model CL-600-2B19 series 
airplanes, that currently requires repetitive ultrasonic inspection to 
detect damage of the actuator lugs of the flight spoiler center hinge; 
and corrective action, if necessary. This amendment mandates the 
previously optional terminating action by requiring replacement of the 
flight spoilers with new improved spoilers. The actions specified by 
this AD are intended to prevent uncommanded deployment of a flight 
spoiler, which could result in reduced controllability of the airplane. 
This action is intended to address the identified unsafe condition.

DATES: Effective July 26, 2001.
    The incorporation by reference of certain publications, as listed 
in the regulations, was approved previously by the Director of the 
Federal Register as of March 1, 2001 (66 FR 10187).

ADDRESSES: The service information referenced in this AD may be 
obtained from Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 
6087, Station Centreville, Montreal, Quebec H3C 3G9, Canada. 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, New York

[[Page 33169]]

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: Serge Napoleon, Aerospace Engineer, 
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 10 Fifth Street, Third Floor, Valley Stream, New 
York 11581; telephone (516) 256-7512; fax (516) 568-2716.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal 
Aviation Regulations (14 CFR part 39) by superseding AD 2001-03-04, 
amendment 39-12107 (66 FR 10187, February 14, 2001), which is 
applicable to certain Bombardier Model CL-600-2B19 series airplanes, 
was published in the Federal Register on March 29, 2001 (66 FR 17094). 
The action proposed to continue to require repetitive ultrasonic 
inspection to detect damage of the actuator lugs of the flight spoiler 
center hinge; and corrective action, if necessary. The action also 
proposed to mandate the previously optional terminating action by 
requiring replacement of the flight spoilers with new improved 
spoilers.

Comments

    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.

Conclusion

    The FAA has determined that air safety and the public interest 
require the adoption of the rule as proposed.

Cost Impact

    There are approximately 195 Bombardier Model CL-600-2B19 series 
airplanes of U.S. registry that will be affected by this AD.
    The inspections that are currently required by AD 2001-03-04, and 
retained in this new AD, take approximately 2 work hours per airplane 
to accomplish, at an average labor rate of $60 per work hour. Based on 
these figures, the cost impact of the currently required actions on 
U.S. operators is estimated to be $23,400, or $120 per airplane, per 
inspection cycle.
    The new replacement that is required by this AD will take 
approximately 4 work hours per airplane to accomplish, at an average 
labor rate of $60 per work hour. The required parts will be provided by 
the manufacturer at no cost to the operators. Based on these figures, 
the cost impact of the new replacement required by this AD on U.S. 
operators is estimated to be $46,800, or $240 per airplane.
    The cost impact figures discussed above are based on assumptions 
that no operator has yet accomplished any of the requirements of this 
AD, and that no operator would accomplish those actions in the future 
if this AD were not adopted. The cost impact figures discussed in AD 
rulemaking actions represent only the time necessary to perform the 
specific actions actually required by the AD. These figures typically 
do not include incidental costs, such as the time required to gain 
access and close up, planning time, or time necessitated by other 
administrative actions.

Regulatory Impact

    The regulations adopted herein will 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. Therefore, it 
is determined that this final rule does not have federalism 
implications under Executive Order 13132.
    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. 106(g), 40113, 44701.


Sec. 39.13  [Amended]

    2. Section 39.13 is amended by removing amendment 39-12107 (66 FR 
10187, February 14, 2001), and by adding a new airworthiness directive 
(AD), amendment 39-12280, to read as follows:

2001-12-24  Bombardier, Inc. (Formerly Canadair): Amendment 39-
12280. Docket 2001-NM-33-AD. Supersedes AD 2001-03-04, Amendment 39-
12107.

    Applicability: Model CL-600-2B19 series airplanes, 7003 though 
7340 inclusive; certificated in any category.

    Note 1: This AD applies to each airplane identified in the 
preceding applicability provision, regardless of whether it has been 
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 request approval for an 
alternative method of compliance in accordance with paragraph (e) of 
this AD. The request should include an assessment of the effect of 
the modification, alteration, or repair on the unsafe condition 
addressed by this AD; and, if the unsafe condition has not been 
eliminated, the request should include specific proposed actions to 
address it.

    Compliance: Required as indicated, unless accomplished 
previously.
    To prevent uncommanded deployment of a flight spoiler, which 
could result in reduced controllability of the airplane, accomplish 
the following:

Restatement of Requirements of AD 2001-03-04

Inspections

    (a) Prior to the accumulation of 3,000 total flight cycles or 
within 30 days after March 1, 2001 (the effective date of AD 2001-
03-04, amendment 39-12107): Perform nondestructive evaluation 
procedure NDE UT-35 (ultrasonic inspections) to detect damage (e.g., 
cracking) of the actuator lugs on both of the center hinge fittings 
of flight spoilers part numbers (P/N) 600-10602-1001 and -1002, at 
spoiler stations 195.36 and 204.36; in accordance with Section 2, 
Accomplishment Instructions, Part A of Bombardier Alert Service 
Bulletin A601R-57-027, Revision C, dated May 30, 2000. If no damage 
is detected, repeat the inspection at intervals not to exceed 500 
flight cycles until the requirements of paragraph (c) of this AD 
have been accomplished.

    Note 2: Accomplishment of the nondestructive evaluation 
procedure in accordance with Bombardier Alert Service Bulletin 
A601R-57-027, dated April 19, 1999; Revision A, dated July 23, 1999; 
or Revision B, dated December 8, 1999; is acceptable for compliance 
with the requirements of paragraph (a) of this AD.

Corrective Actions

    (b) If any damage (e.g., cracking) is detected during the 
inspection required by paragraph (a) of this AD: Prior to further 
flight, remove the damaged flight spoiler and

[[Page 33170]]

perform nondestructive evaluation procedure NDE ET-27 of the lug, 
per Section 2 of the Accomplishment Instructions of Part B of 
Bombardier Alert Service Bulletin A601R-57-027, Revision C, dated 
May 30, 2000.
    (1) If no damage is detected, repeat the inspection required by 
paragraph (a) of this AD at intervals not to exceed 500 flight 
cycles until the requirements of paragraph (c) of this AD have been 
accomplished.
    (2) If any damage is detected, prior to further flight, replace 
the damaged flight spoiler with a new or serviceable flight spoiler, 
per Bombardier Service Bulletin 601R-57-029, dated May 30, 2000.
    (i) For a flight spoiler with no damage or one that is replaced 
with a new or serviceable flight spoiler: Repeat the inspection 
required by paragraph (a) of this AD at intervals not to exceed 500 
flight cycles, until the requirements of paragraph (c) of this AD 
have been accomplished.
    (ii) If both flight spoilers are replaced with new improved 
spoilers, no further action is required by this AD.

New Requirements of this AD

Replacement of Certain Flight Spoilers

    (c) Within 36 months after the effective date of this AD, 
replace any flight spoiler having part number (P/N) 600-10602-1001 
or 600-10602-1002 with a new improved left-hand flight spoiler 
having P/N 600-10602-73 or a new right-hand flight spoiler having P/
N 600-10602-74, as applicable; in accordance with Bombardier Service 
Bulletin 601R-57-029, dated May 30, 2000. Such replacement of both 
the left-hand and right-hand flight spoilers constitutes terminating 
action for the repetitive inspection requirements of this AD.

Reporting Requirements

    (d) Within 30 days of accomplishing the inspection required by 
paragraph (a) of this AD: Submit a report of any findings of 
cracking to Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 
6087, Station Centre-ville, Montreal, Quebec H3C 3G9, Canada. 
Information collection requirements contained in this regulation 
have been approved by the Office of Management and Budget (OMB) 
under the provisions of the Paperwork Reduction Act of 1980 (44 
U.S.C. 3501 et seq.) and have been assigned OMB Control Number 2120-
0056.

Alternative Methods of Compliance

    (e) 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. 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 3: Information concerning the existence of approved 
alternative methods of compliance with this AD, if any, may be 
obtained from the New York ACO.

Special Flight Permits

    (f) 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.

Incorporation by Reference

    (g) The actions shall be done in accordance with Bombardier 
Alert Service Bulletin A601R-57-027, Revision C, dated May 30, 2000; 
and Bombardier Service Bulletin 601R-57-029, dated May 30, 2000. The 
incorporation by reference of these documents was approved 
previously by the Director of the Federal Register as of March 1, 
2001 (66 FR 10187, February 14, 2001). Copies may be obtained from 
Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station 
Centre-ville, Montreal, Quebec H3C 3G9, Canada. Copies may be 
inspected at the FAA, Transport Airplane Directorate, 1601 Lind 
Avenue, SW., Renton, Washington; or at the FAA, 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.

    Note 4: The subject of this AD is addressed in Canadian 
airworthiness directive CF-2000-15R1, dated February 22, 2001.

Effective Date

    (h) This amendment becomes effective on July 26, 2001.

    Issued in Renton, Washington, on June 14, 2001.
Vi L. Lipski,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 01-15573 Filed 6-20-01; 8:45 am]
BILLING CODE 4910-13-P

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