```

[Federal Register: February 4, 2010 (Volume 75, Number 23)]
[Rules and Regulations]               
[Page 5690-5692]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr04fe10-6]                         

-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-1081; Directorate Identifier 2009-CE-058-AD; 
Amendment 39-16187; AD 2010-03-04]
RIN 2120-AA64

 
Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A. Model P-
180 Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for the 
products listed above. This AD results from mandatory continuing 
airworthiness information (MCAI) issued 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:


[[Page 5691]]


    An operator reported a short circuit between a generator power 
cable and an anti-ice shutoff valve, which was caused by chafing 
between the cable and the valve; the insulation of the cable and 
surrounding sleeve were worn off.
    An investigation revealed that a scarce clearance between the 
cables and adjacent parts, together with vibrations of generator 
power cables favoured by insufficient clamping, was the root cause 
of the damage.
    If left uncorrected, this situation could lead to short circuits 
with possible fire and/or loss of important aircraft systems.

    We are issuing this AD to require actions to correct the unsafe 
condition on these products.

DATES: This AD becomes effective March 11, 2010.
    On March 11, 2010, the Director of the Federal Register approved 
the incorporation by reference of certain publications listed in this 
AD.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov or in person at Document Management Facility, U.S. 
Department of Transportation, Docket Operations, M-30, West Building 
Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 
20590.

FOR FURTHER INFORMATION CONTACT: Sarjapur Nagarajan, Aerospace 
Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas 
City, Missouri 64106; telephone: (816) 329-4145; fax: (816) 329-4090.

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 November 19, 2009 
(74 FR 59941). That NPRM proposed to correct an unsafe condition for 
the specified products. The MCAI states:

    An operator reported a short circuit between a generator power 
cable and an anti-ice shutoff valve, which was caused by chafing 
between the cable and the valve; the insulation of the cable and 
surrounding sleeve were worn off.
    An investigation revealed that a scarce clearance between the 
cables and adjacent parts, together with vibrations of generator 
power cables favoured by insufficient clamping, was the root cause 
of the damage.
    If left uncorrected, this situation could lead to short circuits 
with possible fire and/or loss of important aircraft systems.
    This Airworthiness Directive (AD) requires an inspection to 
detect damaged cables/sleeves, and replacement/repair as necessary; 
in addition, this AD requires to ensure that acceptable minimum 
clearances between cables and parts exist, and to improve clamping 
to minimize vibrations of the cables.

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.

Conclusion

    We reviewed the available data and determined that air safety and 
the public interest require adopting the AD as proposed.

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 FAA policies. Any such differences are 
highlighted in a NOTE within the AD.

Costs of Compliance

    We estimate that this AD will affect 63 products of U.S. registry. 
We also estimate that it will take about 2 work-hours per product to 
comply with the basic requirements of this AD. The average labor rate 
is $85 per work-hour.
    Based on these figures, we estimate the cost of this AD to the U.S. 
operators to be $10,710 or $170 per product.
    In addition, we estimate that any necessary follow-on actions would 
take about 6 work-hours and require parts costing $10, for a cost of 
$520 per product. We have no way of determining the number of products 
that may need these actions.

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 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 Management Facility 
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 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.

[[Page 5692]]

Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new AD:

2010-03-04 PIAGGIO AERO INDUSTRIES S.p.A.: Amendment 39-16187; 
Docket No. FAA-2009-1081; Directorate Identifier 2009-CE-058-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective March 
11, 2010.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Model PIAGGIO P-180 airplanes, all serial 
numbers through 1180, certificated in any category.

Subject

    (d) Air Transport Association of America (ATA) Code 24: Electric 
Power.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:

    An operator reported a short circuit between a generator power 
cable and an anti-ice shutoff valve, which was caused by chafing 
between the cable and the valve; the insulation of the cable and 
surrounding sleeve were worn off.
    An investigation revealed that a scarce clearance between the 
cables and adjacent parts, together with vibrations of generator 
power cables favoured by insufficient clamping, was the root cause 
of the damage.
    If left uncorrected, this situation could lead to short circuits 
with possible fire and/or loss of important aircraft systems.
    This Airworthiness Directive (AD) requires an inspection to 
detect damaged cables/sleeves, and replacement/repair as necessary; 
in addition, this AD requires to ensure that acceptable minimum 
clearances between cables and parts exist, and to improve clamping 
to minimize vibrations of the cables.

Actions and Compliance

    (f) Unless already done, do the following actions:
    (1) Within 3 months after March 11, 2010 (the effective date of 
this AD), inspect for minimum clearance and insulation damage to the 
generator power cables in accordance with Part A of the 
ACCOMPLISHMENT INSTRUCTIONS of PIAGGIO AERO INDUSTRIES S.p.A. 
Service Bulletin (Mandatory) N.: 80-0271, dated May 18, 2009.
    (2) If, as a result of the inspection required by paragraph 
(f)(1) of this AD, any discrepancy (inadequate clearance or 
insulation damage) is found, before further flight, do all necessary 
corrective actions in accordance with Part B of the ACCOMPLISHMENT 
INSTRUCTIONS of PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin 
(Mandatory) N.: 80-0271, dated May 18, 2009.

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, 
Standards Office, 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: Sarjapur Nagarajan, Aerospace Engineer, FAA, 
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, 
Missouri 64106; telephone: (816) 329-4145; fax: (816) 329-4090. 
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 (44 
U.S.C. 3501 et seq.), 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 AD No.: 2009-
0212, dated October 6, 2009; and PIAGGIO AERO INDUSTRIES S.p.A. 
Service Bulletin (Mandatory) N.: 80-0271, dated May 18, 2009, for 
related information.

Material Incorporated by Reference

    (i) You must use PIAGGIO AERO INDUSTRIES S.p.A. Service Bulletin 
(Mandatory) N.: 80-0271, dated May 18, 2009, 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 
Piaggio Aero Industries S.p.a., Via Cibrario, 4--16154 Genoa, Italy; 
telephone +39 010 06481 741; fax: +39 010 6481 309; Internet: http://www.piaggioaero.com, or e-mail: MMicheli@piaggioaero.it.
    (3) You may review copies of the service information 
incorporated by reference for this AD at the FAA, Central Region, 
Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 
64106. For information on the availability of this material at the 
Central Region, call (816) 329-3768.
    (4) You may also review copies of the service information 
incorporated by reference for this AD 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 Kansas City, Missouri, on January 21, 2010.
James E. Jackson,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2010-1691 Filed 2-3-10; 8:45 am]
BILLING CODE 4910-13-P
```