Document ID: FAA-2008-0848-0003
Agency: faa
Document Type: Rule
Title: Airworthiness Directives; Saab AB, Saab Aerosystems Model SAAB 2000 Airplanes
Posted Date: 2008-10-31T04:00Z

[Federal Register: October 31, 2008 (Volume 73, Number 212)]
[Rules and Regulations]               
[Page 64879-64881]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr31oc08-7]                         

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-0848; Directorate Identifier 2008-NM-082-AD; 
Amendment 39-15702; AD 2008-22-07]
RIN 2120-AA64

 
Airworthiness Directives; Saab AB, Saab Aerosystems Model SAAB 
2000 Airplanes

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

ACTION: Final rule.

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SUMMARY: We are adopting a new 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:

    Subsequent to accidents involving Fuel Tank System explosions in 
flight * * * and on ground, * * * Special Federal Aviation 
Regulation 88 (SFAR88) * * * required * * * a design review against 
explosion risks.
* * * * *
    The unsafe condition is the potential of ignition sources inside 
fuel tanks, which, in combination with flammable fuel vapors, could 
result in fuel tank explosions and consequent loss of the airplane. We 
are issuing this AD to require actions to correct the unsafe condition 
on these products.

DATES: This AD becomes effective December 5, 2008.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of December 5, 
2008.

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: Shahram Daneshmandi, Aerospace 
Engineer, International Branch, ANM-116, Transport Airplane 
Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; 
telephone (425) 227-1112; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an AD that would apply to the specified products. 
That NPRM was published in the Federal Register on August 7, 2008 (73 
FR 45888). That NPRM proposed to correct an unsafe condition for the 
specified products. The MCAI states:

    Subsequent to accidents involving Fuel Tank System explosions in 
flight * * * and on ground, the FAA has published Special Federal 
Aviation Regulation 88 (SFAR88) in June 2001. In their Letters 
referenced 04/00/02/07/01-L296 dated March 4th, 2002 and 04/00/02/
07/03-L024, dated February 3rd, 2003, the Joint Aviation Authorities 
(JAA) recommended the application of a similar regulation to the 
National Aviation Authorities (NAA).
    Under current European Union regulation, all holders of type 
certificates for passenger transport aircraft with either a 
passenger capacity of 30 or more, or a payload capacity of 7,500 
pounds (3,402 kg) or more, which have received their certification 
after January 1st, 1958, are required to conduct a design review 
against explosion risks.
    This Airworthiness Directive (AD), which is the result of one of 
these design reviews, requires a wiring modification of the FQIS 
(Fuel Quantity Indication System) Signal conditioner 28VDC (volts 
direct current) supply and replacement of the Fuel Pump harness 
inside the wing tanks (both LH and RH (left- and right-hand)).

    The unsafe condition is the potential of ignition sources inside 
fuel tanks, which, in combination with flammable fuel vapors, could 
result in fuel tank explosions and consequent loss of the airplane. The 
corrective actions include functional and operational tests. You may 
obtain further information by examining the MCAI in the AD docket.

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 to Applicability

    We have revised the applicability of the existing AD to identify 
the type certificate holder as published in the most recent type 
certificate data sheet for the affected model.

Conclusion

    We reviewed the available data and determined that air safety and 
the

[[Page 64880]]

public interest require adopting the AD with the change described 
previously. We determined that this change will not increase the 
economic burden on any operator or increase the scope of the AD.

Differences Between This AD and the MCAI or Service Information

    We have reviewed the MCAI and related service information and, in 
general, agree with their substance. But we might have found it 
necessary to use different words from those in the MCAI to ensure the 
AD is clear for U.S. operators and is enforceable. In making these 
changes, we do not intend to differ substantively from the information 
provided in the MCAI and related service information.
    We might also have required different actions in this AD from those 
in the MCAI in order to follow our FAA policies. Any such differences 
are highlighted in a NOTE within the AD.

Costs of Compliance

    We estimate that this AD will affect about 6 products of U.S. 
registry. We also estimate that it will take about 80 work-hours per 
product to comply with the basic requirements of this AD. The average 
labor rate is $80 per work-hour. Required parts will cost about $14,040 
per 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 this AD to the 
U.S. operators to be $122,640, or $20,440 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 AD will not have federalism implications 
under Executive Order 13132. This AD 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.
    For the reasons discussed above, I certify this AD:
    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); 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.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this AD and placed it in the AD docket.

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 the NPRM, 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.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the FAA amends 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:

2008-22-07 Saab AB, Saab Aerosystems: Amendment 39-15702. Docket No. 
FAA-2008-0848; Directorate Identifier 2008-NM-082-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective December 
5, 2008.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Saab AB, Saab Aerosystems Model SAAB 2000 
airplanes, certificated in any category, all serial numbers.

Subject

    (d) Air Transport Association (ATA) of America Code 28: Fuel.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:
    Subsequent to accidents involving Fuel Tank System explosions in 
flight * * * and on ground, the FAA has published Special Federal 
Aviation Regulation 88 (SFAR88) in June 2001. In their Letters 
referenced 04/00/02/07/01-L296 dated March 4th, 2002 and 04/00/02/
07/03-L024, dated February 3rd, 2003, the Joint Aviation Authorities 
(JAA) recommended the application of a similar regulation to the 
National Aviation Authorities (NAA).
    Under current European Union regulation, all holders of type 
certificates for passenger transport aircraft with either a 
passenger capacity of 30 or more, or a payload capacity of 7,500 
pounds (3,402 kg) or more, which have received their certification 
after January 1st, 1958, are required to conduct a design review 
against explosion risks.
    This Airworthiness Directive (AD), which is the result of one of 
these design reviews, requires a wiring modification of the FQIS 
(Fuel Quantity Indication System) Signal conditioner 28VDC (volts 
direct current) supply and replacement of the Fuel Pump harness 
inside the wing tanks (both LH and RH (left- and right-hand)).
    The unsafe condition is the potential of ignition sources inside 
fuel tanks, which, in combination with flammable fuel vapors, could 
result in fuel tank explosions and consequent loss of the airplane. 
The corrective actions include functional and operational tests.

Actions and Compliance

    (f) Unless already done, do the following actions.
    (1) Within 72 months after the effective date of this AD, 
replace the fuel pump harness inside each (both left- and right-
hand) inboard wing fuel tank in accordance with the Accomplishment 
Instructions of Saab 2000 Service Bulletin 2000-28-013, dated 
October 11, 2007 (Modification 6250), including a follow-up 
functional test and operational test.
    (2) Within 72 months after the effective date of this AD, modify 
the wiring of the 28 VDC supply to the signal conditioner and the 
132VP (feed-through connector) in accordance with the Accomplishment 
Instructions of Saab 2000 Service Bulletin 2000-28-014, Revision 02, 
dated January 23, 2008 (Modification 6251), including the follow-up 
operational test.
    (3) Actions done before the effective date of this AD in 
accordance with Saab 2000 Service Bulletin 2000-28-014, Revision 01, 
dated November 6, 2007, are acceptable for

[[Page 64881]]

compliance with the requirements of paragraph (f)(2) of this AD.

FAA AD Differences

    Note: This AD differs from the MCAI and/or service information 
as follows: No differences.

Other FAA AD Provisions

    (g) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
has the authority to approve AMOCs for this AD, if requested using 
the procedures found in 14 CFR 39.19. Send information to ATTN: 
Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM-
116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., 
Renton, Washington 98057-3356; telephone (425) 227-1112; fax (425) 
227-1149. Before using any approved AMOC on any airplane to which 
the AMOC applies, notify your appropriate principal inspector (PI) 
in the FAA Flight Standards District Office (FSDO), or lacking a PI, 
your local FSDO.
    (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.
    (3) Reporting Requirements: For any reporting requirement in 
this AD, under the provisions of the Paperwork Reduction Act, the 
Office of Management and Budget (OMB) has approved the information 
collection requirements and has assigned OMB Control Number 2120-
0056.

Related Information

    (h) Refer to MCAI European Aviation Safety Agency Airworthiness 
Directive 2008-0031, dated February 15, 2008; Saab 2000 Service 
Bulletin 2000-28-013, dated October 11, 2007; and Saab 2000 Service 
Bulletin 2000-28-014, Revision 02, dated January 23, 2008; for 
related information.

Material Incorporated by Reference

    (i) You must use Saab 2000 Service Bulletin 2000-28-013, dated 
October 11, 2007; and Saab 2000 Service Bulletin 2000-28-014, 
Revision 02, dated January 23, 2008; as applicable; to do the 
actions required by this AD, unless the AD specifies otherwise.
    (1) The Director of the Federal Register approved the 
incorporation by reference of this service information under 5 
U.S.C. 552(a) and 1 CFR part 51.
    (2) For service information identified in this AD, contact Saab 
Aircraft AB, SAAB Aerosystems, SE-581.88, Link[ouml]ping, Sweden; 
telephone 011 46 13 18 5591; fax 011 46 13 18 4874; e-mail http://
www.saab2000.techsupport@saabgroup.com; Internet http://
www.saabgroup.com.
    (3) You may review copies 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.

    Issued in Renton, Washington, on October 9, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E8-25307 Filed 10-30-08; 8:45 am]

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