Airworthiness Directives; Fokker Model F.28 Mark 0070 and 0100 Airplanes

[Federal Register Volume 71, Number 165 (Friday, August 25, 2006)]
[Rules and Regulations]
[Pages 50333-50335]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E6-13969]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-24959; Directorate Identifier 2005-NM-258-AD; 
Amendment 39-14737; AD 2006-17-16]
RIN 2120-AA64


Airworthiness Directives; Fokker Model F.28 Mark 0070 and 0100 
Airplanes

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

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
Fokker Model F.28 Mark 0070 and 0100 airplanes. This AD requires a one-
time detailed inspection to detect corrosion on the wing rear spar 
lower girder, and related investigative and applicable corrective 
actions if necessary. This AD results from reports of corrosion of the 
wing rear spar lower girder between wing station (STA) 8700 and wing 
STA 9200. We are issuing this AD to detect and correct corrosion of the 
wing rear spar lower girder, which could result in reduced structural 
integrity of the wing rear spar.

DATES: This AD becomes effective September 29, 2006.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of September 29, 
2006.

ADDRESSES: You may examine the AD docket on the Internet at http://dms.dot.gov or in person at the Docket Management Facility, U.S. 
Department of Transportation, 400 Seventh Street, SW., Nassif Building, 
Room PL-401, Washington, DC.
    Contact Fokker Services B.V., Technical Services Dept., P.O. Box 
231, 2150 AE Nieuw-Vennep, the Netherlands, for service information 
identified in this AD.

FOR FURTHER INFORMATION CONTACT: Tom Rodriguez, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue, SW., Renton, WA 98057-3356; telephone (425) 227-1137; 
fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Examining the Docket

    You may examine the airworthiness directive (AD) docket on the 
Internet at http://dms.dot.gov or in person at the Docket Management 
Facility office between 9 a.m. and 5 p.m., Monday through Friday, 
except Federal holidays. The Docket Management Facility office 
(telephone (800) 647-5227) is located on the plaza level of the Nassif 
Building at the street address stated in the ADDRESSES section.

Discussion

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 to include an AD that would apply to all Fokker Model F.28 
Mark 0070 and 0100 airplanes. That NPRM was published in the Federal 
Register on June 8, 2006 (71 FR 33260). That NPRM proposed to require a 
one-time detailed inspection to detect corrosion on the wing rear spar 
lower girder, and related investigative and applicable corrective 
actions if necessary.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We received no comments on the NPRM or on the 
determination of the cost to the public.

Conclusion

    We have carefully reviewed the available data and determined that 
air safety and the public interest require adopting the AD as proposed.

Interim Action

    This AD is considered to be interim action. The inspection reports 
required by this AD will enable the manufacturer to obtain better 
insight into the nature, cause, and extent of the corrosion, and 
eventually to develop final action to address the unsafe condition. 
Once final action has been identified, we may consider further 
rulemaking.

Costs of Compliance

    The following table provides the estimated costs for U.S. operators 
to comply with this AD.

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                         Number of
                                                   Average                   Cost per      U.S.-
              Action                 Work hours   labor rate     Parts       airplane    registered   Fleet cost
                                                   per hour                              airplanes
----------------------------------------------------------------------------------------------------------------
Inspection of wing rear spar lower            2          $80           $0         $160           44       $7,040
 girder...........................
----------------------------------------------------------------------------------------------------------------


[[Page 50334]]

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 have 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 that this AD:
    (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.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this AD and placed it in the AD docket. See the ADDRESSES 
section for a location to examine the regulatory evaluation.

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 Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

2006-17-16 Fokker Services B.V.: Amendment 39-14737. Docket No. FAA-
2006-24959; Directorate Identifier 2005-NM-258-AD.

Effective Date

    (a) This AD becomes effective September 29, 2006.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to all Fokker Model F.28 Mark 0070 and 0100 
airplanes, certificated in any category.

Unsafe Condition

    (d) This AD results from reports of corrosion of the wing rear 
spar lower girder between wing station (STA) 8700 and wing STA 9200. 
We are issuing this AD to detect and correct corrosion of the wing 
rear spar lower girder, which could result in reduced structural 
integrity of the wing rear spar.

Compliance

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

Wing Rear Spar Lower Girder Inspection/Related Investigative/Corrective 
Actions

    (f) Within 4,000 flight hours or 21 months after the effective 
date of this AD, whichever occurs first: Do a detailed inspection to 
detect corrosion on the wing rear spar lower girder between wing STA 
8700 and wing STA 9200, and do all related investigative and 
applicable corrective actions, by accomplishing all the actions 
specified in the Accomplishment Instructions of Fokker Service 
Bulletin SBF100-57-038, dated April 15, 2005, except as provided by 
paragraphs (g) and (h) of this AD. Do all related investigative and 
corrective actions before further flight. If any damage is found 
that measures more than or equal to 1.3 millimeters (mm) deep, or if 
the thickness of the remaining material of the rear spar lower 
girder is less than or equal to 2.1 mm thick, repair in accordance 
with a method approved by the Manager, International Branch, ANM-
116, Transport Airplane Directorate, FAA; or the European Aviation 
Safety Agency (EASA) (or its delegated agent).

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

    (g) If, during the accomplishment of the corrective actions 
required by paragraph (f) of this AD, the service bulletin specifies 
contacting the manufacturer for certain repair instructions: Before 
further flight, repair in accordance with a method approved by the 
Manager, International Branch, ANM-116; or the EASA (or its 
delegated agent).

Reporting Inspection and Damage Results

    (h) Submit a report of the findings (both positive and negative) 
of the inspection required by paragraph (f) of this AD to Fokker 
Services B.V., Technical Services Dept., P.O. Box 231, 2150 AE 
Nieuw-Vennep, the Netherlands; fax +31 252 627211; e-mail 
[email protected]; at the applicable time 
specified in paragraph (h)(1) or (h)(2) of this AD. Use the 
reporting forms in Figures 3 and 4 of Fokker Service Bulletin 
SBF100-57-038, dated April 15, 2005. Under the provisions of the 
Paperwork Reduction Act (44 U.S.C. 3501 et seq.), the Office of 
Management and Budget (OMB) has approved the information collection 
requirements contained in this AD and has assigned OMB Control 
Number 2120-0056.
    (1) If the inspection was done after the effective date of this 
AD: Submit the report within 30 days after the inspection.
    (2) If the inspection was done before the effective date of this 
AD: Submit the report within 30 days after the effective date of 
this AD.

Alternative Methods of Compliance (AMOCs)

    (i)(1) The Manager, International Branch, ANM-116, has the 
authority to approve AMOCs for this AD, if requested in accordance 
with the procedures found in 14 CFR 39.19.
    (2) Before using any AMOC approved in accordance with Sec.  
39.19 on any airplane to which the AMOC applies, notify the 
appropriate principal inspector in the FAA Flight Standards 
Certificate Holding District Office.

Related Information

    (j) Dutch airworthiness directive NL-2005-006, dated April 29, 
2005, also addresses the subject of this AD.

Material Incorporated by Reference

    (k) You must use Fokker Service Bulletin SBF100-57-038, dated 
April 15, 2005, to perform the actions that are required by this AD, 
unless the AD specifies otherwise. The Director of the Federal 
Register approved the incorporation by reference of this document in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Fokker 
Services B.V., Technical Services Dept., P.O. Box 231, 2150 AE 
Nieuw-Vennep, the Netherlands, for a copy of this service 
information. You may review copies at the Docket Management 
Facility, U.S. Department of Transportation, 400 Seventh Street, 
SW., Room PL-401, Nassif Building, Washington, DC; on the Internet 
at http://dms.dot.gov; or at the National Archives and Records 
Administration (NARA). For information on the availability of this 
material at the NARA, call (202) 741-6030, or go to http://
www.archives.gov/federal--register/

[[Page 50335]]

code--of--federal--regulations/ibr--locations.html.

    Issued in Renton, Washington, on August 16, 2006.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
 [FR Doc. E6-13969 Filed 8-24-06; 8:45 am]
BILLING CODE 4910-13-P

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