[Federal Register Volume 69, Number 92 (Wednesday, May 12, 2004)]
[Rules and Regulations]
[Pages 26299-26301]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-10246]



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  Federal Register / Vol. 69, No. 92 / Wednesday, May 12, 2004 / Rules 
and Regulations  

[[Page 26299]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2002-NM-204-AD; Amendment 39-13617; AD 2004-09-27]
RIN 2120-AA64


Airworthiness Directives; Dassault Model Mystere-Falcon 50 Series 
Airplanes

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule.

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

SUMMARY: This amendment adopts a new airworthiness directive (AD), 
applicable to certain Dassault Model Mystere-Falcon 50 series 
airplanes, that requires a one-time inspection for improper 
installation of the electrical wiring for the optional lighting in the 
cabin, and corrective actions if necessary. This action is necessary to 
find and fix improper installation of the electrical wiring of the 
basic/optional cabin lighting, which could result in overheating of the 
wiring and possible smoke/fire in the cabin during an emergency 
situation. This action is intended to address the identified unsafe 
condition.

DATES: Effective June 16, 2004.
    The incorporation by reference of certain publications listed in 
the regulations is approved by the Director of the Federal Register as 
of June 16, 2004.

ADDRESSES: The service information referenced in this AD may be 
obtained from Dassault Falcon Jet, P.O. Box 2000, South Hackensack, New 
Jersey 07606. 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 National Archives 
Administration (NARA). For information on the availability of this 
material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

FOR FURTHER INFORMATION CONTACT: Tom Rodriguez, Aerospace Engineer, 
International Branch, ANM-116, FAA, Transport Airplane Directorate, 
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 
227-1137; fax (425) 227-1149.

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 Dassault Model Mystere-
Falcon 50 series airplanes was published in the Federal Register on 
January 9, 2004 (69 FR 1547). That action proposed to require a one-
time inspection for improper installation of the electrical wiring for 
the optional lighting in the cabin, and corrective actions if 
necessary.

Comments

    Interested persons have been afforded an opportunity to participate 
in the making of this amendment. Due consideration has been given to 
the comments received.

Request To Add Revised Service Information

    One commenter states that there is an error in the section of the 
proposed AD titled ``Explanation of Relevant Service Information,'' 
which references Dassault Service Bulletin F50-318, Revision 1, dated 
June 12, 2002. The commenter states that the correct reference should 
be Dassault Service Bulletin F50-318, Revision 2, dated January 15, 
2003. The commenter also asks that Revision 2 be added to paragraph (a) 
of the proposed AD.
    The FAA acknowledges the commenter's remarks. Since Revision 2 of 
the service bulletin was not issued until after the proposed AD was 
published, we referenced Revision 1 in the proposed AD. Revision 2 is 
essentially the same as Revision 1 of the referenced service bulletin. 
We have added references to Revision 2 to paragraphs (a) and (b) of 
this final rule as another source of service information for 
accomplishment of the specified actions.

Request To Change Description of Unsafe Condition

    The same commenter states that, as written, the unsafe condition 
specified in the proposed AD is misleading. The unsafe condition 
states, ``This action is necessary to prevent overheating of optional 
lighting wiring that was improperly installed in the cabin, and 
consequent smoke/fire in the cabin.'' The commenter suggests that this 
wording be changed to read, ``This action is necessary to ensure the 
basic/optional cabin lighting routing and power supply conform to the 
certification rules.'' The commenter notes that this language is 
contained in the referenced service bulletin, and accomplishment of the 
service bulletin is intended to correct wiring that is installed 
directly to the batteries, instead of through a dedicated circuit 
breaker.
    We acknowledge the commenter's concern regarding the description of 
the unsafe condition specified in the proposed AD. The description of 
the unsafe condition is based on the airworthiness directive issued by 
the Direction G[eacute]n[eacute]rale de l'Aviation Civile, which is the 
airworthiness authority for France. The Discussion section of the 
proposed AD reads, ``The DGAC advises that due to incorrect routing, 
wiring for the optional lighting in the cabin may be directly connected 
to the direct power supply line of the battery bus instead of through a 
dedicated circuit breaker. In this configuration, an electrical current 
is generated even after the starter generators and batteries are 
switched off.'' Although the commenter found the description of the 
unsafe condition to be misleading, we do not find the commenter's 
suggested wording to be an adequate description of the effect on the 
airplane of incorrect routing of the subject wiring. However, we have 
provided further clarification of the unsafe condition in this final 
rule. We have changed the statement of the unsafe condition to read, 
``This action is necessary to find and fix improper installation of the 
electrical wiring of the basic/optional cabin lighting, which could 
result in overheating of the wiring and possible smoke/fire in the 
cabin during an emergency situation.''

[[Page 26300]]

Request to Change Cost Impact Information

    One commenter, Dassault Falcon Jet, states that the work hours 
listed in the proposed AD may be significantly increased if additional 
wiring alterations are done to the electrical circuit after airplane 
delivery. The commenter adds that the kits (parts) provided by the 
manufacturer at no charge were available only through March 2003.
    We acknowledge the commenter's concerns; however, additional wiring 
alterations done to the electrical circuit after airplane delivery are 
outside the requirements of this AD, thus would not be included in the 
estimated work hours. In addition, we have been informed by the 
manufacturer (Dassault Aviation, France) that the kits provided at no 
charge are available for one year after the effective date of this AD.

Conclusion

    After careful review of the available data, including the comments 
noted above, we have determined that air safety and the public interest 
require the adoption of the rule with the changes described previously. 
These changes will neither increase the economic burden on any operator 
nor increase the scope of the AD.

Cost Impact

    We estimate that 175 airplanes of U.S. registry will be affected by 
this AD.
    It will take about 2 work hours per airplane to accomplish the 
required inspection at an average labor rate of $65 per work hour. 
Based on these figures, the cost impact of the required inspection on 
U.S. operators is estimated to be $22,750, or $130 per airplane.
    Should an operator have to modify the optional lighting wiring, it 
takes about 60 work hours at an average labor rate of $65 per work 
hour. Required parts would be provided by the manufacturer at no 
charge. Based on these figures, the cost impact of the modification is 
estimated to be $3,900 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 action, 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

0
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

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. Section 39.13 is amended by adding the following new airworthiness 
directive:

2004-09-27 Dassault Aviation: Amendment 39-13617. Docket 2002-NM-
204-AD.

    Applicability: Model Mystere-Falcon 50 series airplanes having 
serial numbers 2 through 270 inclusive, certificated in any 
category.
    Compliance: Required as indicated, unless accomplished 
previously.
    To find and fix improper installation of the electrical wiring 
of the basic/optional cabin lighting, which could result in 
overheating of the wiring and possible smoke/fire in the cabin 
during an emergency situation, accomplish the following:

Inspection

    (a) Within 13 months after the effective date of this AD: Do a 
detailed inspection (including measurement of electrical current) of 
the electrical wiring installation for optional lighting in the 
cabin to determine if any wiring is directly connected to the 
battery bus. Do all of the applicable actions per the Accomplishment 
Instructions of Dassault Service Bulletin F50-318, Revision 1, dated 
June 12, 2002; or Revision 2, dated January 15, 2003.

    Note 1: For the purposes of this AD, a detailed inspection is 
defined as: ``An intensive visual examination of a specific 
structural area, system, installation, or assembly to detect damage, 
failure, or irregularity. Available lighting is normally 
supplemented with a direct source of good lighting at intensity 
deemed appropriate by the inspector. Inspection aids such as mirror, 
magnifying lenses, etc., may be used. Surface cleaning and elaborate 
access procedures may be required.''

Corrective Actions

    (b) If any electrical wiring is found to be directly connected 
to the battery bus during the inspection required by paragraph (a) 
of this AD, before further flight, do all the applicable corrective 
actions (e.g., modifying the existing wiring, doing a detailed 
inspection of any modified wiring installation to ensure it matches 
the wiring diagram, and testing the modified wiring installation) 
per the Accomplishment Instructions of Dassault Service Bulletin 
F50-318, Revision 1, dated June 12, 2002; or Revision 2, dated 
January 15, 2003.

Alternative Methods of Compliance

    (c) In accordance with 14 CFR 39.19, the Manager, International 
Branch, ANM-116, FAA, Transport Airplane Directorate, is authorized 
to approve alternative methods of compliance for this AD.

Incorporation by Reference

    (d) The actions shall be done in accordance with Dassault 
Service Bulletin F50-318, Revision 1, dated June 12, 2002; or 
Dassault Service Bulletin F50-318, Revision 2, dated January 15, 
2003. 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 Dassault Falcon Jet, P.O. Box 
2000, South Hackensack, New Jersey 07606. Copies may be inspected at 
the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., 
Renton, Washington; or at the National Archives and Records 
Administration (NARA). For information on the availability of this 
material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

    Note 2: The subject of this AD is addressed in French 
airworthiness directive 2002-086-036(B) R1, dated March 20, 2002.


[[Page 26301]]



Effective Date

    (e) This amendment becomes effective on June 16, 2004.

    Issued in Renton, Washington, on April 27, 2004.
Kevin M. Mullin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 04-10246 Filed 5-11-04; 8:45 am]
BILLING CODE 4910-13-P