Airworthiness Directives; PIAGGIO AERO INDUSTRIES

Airworthiness Directives; PIAGGIO AERO INDUSTRIES

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-0699 Directorate Identifier 2009-CE-042-AD; Amendment 39-16169;
AD 2009-21-08 R1]
RIN 2120-AA64
Airworthiness Directives; PIAGGIO AERO INDUSTRIES S.p.A Model PIAGGIO P-180
Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT).
1
––––––––––––––––––––––––––––––––––
SUMMARY: We are clarifying information contained in Airworthiness Directive (AD) 2009-21-08,
which applies to PIAGGIO AERO INDUSTRIES S.p.A. (Piaggio) Model PIAGGIO P-180 airplanes.
AD 2009-21-08 currently requires repetitive functional tests of the manifold system and replacement
of any system that does not pass the functional tests (i.e., movement of the steering system). The
language in AD 2009-21-08 incorrectly references not passing the functional tests as ''movement of
the manifold,'' and it should read ''movement of the steering system'' as specified in the service
bulletin. The notice of proposed rulemaking (NPRM) referenced it as specified in the service bulletin.
This document incorporates the intent of the action as already proposed in the NPRM. We are issuing
this AD to prevent a potentially dangerous veer along the runway. The steering system must be in the
'off' position during landing and takeoff (in this case when airspeed is higher than 60 knots) according
to the aircraft flight manual limitations.
DATES: The effective date of this AD is December 14, 2009, which is the same as AD 2009-21-08.
As of December 14, 2009 (74 FR 57561, November 9, 2009), the Director of the Federal
Register approved the incorporation by reference of the following documents listed in this AD:
Service information title
Page(s)
Revision
Date
PIAGGIO AERO INDUSTRIES S.p.A.
Service Bulletin (Mandatory) N. 80–0249.
1 through 9

PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
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.
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.
June 30, 2005.
Not Applicable
501 through 506
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
September 14,
2007.
Not Applicable
204, 206, and 210
through 216.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
June 30, 2005.
Not Applicable
203 and 205
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
Cover
No. D2
Revised June
16, 2008.
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
1 through 8
Not Applicable
March 1, 2006.
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
201, 202, 204, and
206 through 216.
Not Applicable
June 16, 2008.
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
203 and 205
Not Applicable
March 1, 2006.
2
501 through 506
Not Applicable
March 1, 2006.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
Cover
No. A3
Revised
December 19,
2008.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
1 through 8
Not Applicable
June 30, 2005.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
201, 202, and 207
through 209.
Not Applicable
December 19,
2008.

SUPPLEMENTARY INFORMATION:
Discussion
On October 7, 2009, we issued AD 2009-21-08, Amendment 39-16047 (74 FR 57561,
November 9, 2009), to require repetitive functional tests of the manifold system and replacement of
any system that does not pass the functional tests (i.e., movement of the steering system) on Piaggio
Model PIAGGIO P-180 airplanes.
The language in AD 2009-21-08 incorrectly references not passing the functional tests as
''movement of the manifold,'' and it should read ''movement of the steering system'' as specified in the
service bulletin. The NPRM referenced it as specified in the service bulletin. This document
incorporates the intent of the action as already proposed in the NPRM.
Consequently, the FAA sees a need to clarify AD 2009-21-08 to assure that the proper criteria
are utilized for the required functional test and is revising the AD to incorporate the language
discussed above and to add the amendment to section 39.13 of the Federal Aviation Regulations (14
CFR 39.13).
Since this action only clarifies the intent of what was originally proposed in the NPRM, it has no
adverse economic impact and imposes no additional burden on any person than was already
proposed. Therefore, the FAA has determined that prior notice and opportunity for public comment
are unnecessary.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the Administrator, the FAA amends 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.
§ 39.13 [Amended]
2. The FAA amends § 39.13 by removing Airworthiness Directive (AD) 2009-21-08, Amendment
39-16047 74 FR 57561, November 9, 2009), and adding the following new AD:
3

Applicability
(f) Unless already done, do the following actions:
Actions and Compliance
The MCAI requires, if any inspection finds internal leakage of the steering manifold,
the replacement of the steering manifold.
AIRWORTHINESS DIRECTIVE
FAA
Aviation Safety
www.faa.gov/aircraft/safety/alerts/
www.gpoaccess.gov/fr/advanced.html
2009-21-08 R1 PIAGGIO AERO INDUSTRIES S.p.A.: Amendment 39-16169; Docket No. FAA-
2009-0699; Directorate Identifier 2009-CE-042-AD.
Effective Date
(a) The effective date of this AD is December 14, 2009, which is the same as AD 2009-21-08.
Affected ADs
(b) None.
4
(c) This AD applies to Model PIAGGIO P-180 airplanes, all serial numbers (S/N), certificated in
any category.
Subject
(d) Air Transport Association of America (ATA) Code 32: Landing Gear.
Reason
(e) The mandatory continuing airworthiness information (MCAI) states:
Some cases of uncommanded steering action were observed, while the steering system
was switched off.
A leakage in the Steering Select/Bypass Valve, installed in the Steering Manifold,
when closed, is suspected to have caused the uncommanded steering.
If left uncorrected, this condition could lead to a potentially dangerous veer along the
runway; in fact, according to the Aircraft Flight Manual limitations, the steering
system must be in 'off' position during landing and takeoff (in this case when airspeed
is higher than 60 knots). For the reasons stated above, this new AD mandates
repetitive inspections for leakage of the Nose Landing Gear steering manifold.

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.
5
(1) Within the next 6 months after December 14, 2009 (the effective date of this AD and AD
2009-21-08) or within the next 100 hours time-in-service (TIS) after December 14, 2009 (the
effective date of this AD and AD 2009-21-08), whichever occurs first, and repetitively thereafter at
intervals not to exceed every 165 hours TIS, do a functional test of the nose landing gear (NLG)
steering manifold. Follow the accomplishment instructions of PIAGGIO AERO INDUSTRIES
S.p.A. Service Bulletin (Mandatory) N. 80-0249 (includes CONFIRMATION SLIP), Rev. 1, dated
May 27, 2009.
(2) Upon installation of a NLG steering manifold on any airplane, do a functional test of the
NLG steering manifold. Repetitively thereafter at intervals not to exceed every 165 hours TIS, do a
functional test of the NLG steering manifold. Follow the accomplishment instructions of PIAGGIO
AERO INDUSTRIES S.p.A. Service Bulletin (Mandatory) N. 80-0249 (includes CONFIRMATION
SLIP), Rev. 1, dated May 27, 2009.
(3) If during any inspection required in paragraphs (f)(1) and (f)(2) of this AD, any manifold
system does not pass the functional tests (i.e., movement of the steering system), using the
compliance times in the accomplishment instructions of PIAGGIO AERO INDUSTRIES S.p.A.
Service Bulletin (Mandatory) N. 80-0249 (includes CONFIRMATION SLIP), Rev. 1, dated May 27,
2009, replace the NLG steering manifold following (for S/N 1004 through 1104) pages 1 through 8
dated March 1, 2006; 201, 202, 204, and 206 through 216, dated June 16, 2008; 203 and 205, dated
March 1, 2006; and 501 through 506, dated March 1, 2006, of PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report No. 9066, 32-50-00, Revision No. D2, revised June 16, 2008;
or (for S/N 1105 and greater) pages 1 through 8, dated June 30, 2005; 201, 202, and 207 through 209,
dated December 19, 2008; 203 and 205, dated June 30, 2005; 204, 206, and 210 through 216, dated
September 14, 2007; and 501 through 506, dated June 30, 2005, of PIAGGIO AERO PIAGGIO
P.180 AVANTI II Maintenance Manual, Report No. 180-MAN-0200-01105, 32-50-00, Revision No.
A3, revised December 19, 2008.

Rev. 1
March 1, 2006.
Not Applicable
203 and 205
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
June 16, 2008.
Not Applicable
201, 202, 204, and
206 through 216.
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
March 1, 2006.
Not Applicable
Related Information
(h) Refer to MCAI EASA AD 2009-0129, dated June 19, 2009; PIAGGIO AERO INDUSTRIES
S.p.A. Service Bulletin (Mandatory) N. 80-0249 (includes CONFIRMATION SLIP), Rev. 1, dated
May 27, 2009; PIAGGIO AERO PIAGGIO P. 180 AVANTI Maintenance Manual, Report No. 9066,
32-50-00, revised June 16, 2008, pages 1 through 8, 201 through 216, and 501 through 506; and
PIAGGIO AERO PIAGGIO P. 180 AVANTI II Maintenance Manual, Report No. 180-MAN-0200-
01105, 32-50-00, revised December 19, 2008, pages 1 through 8, 201 through 216, and 501 through
506, for related information.
Material Incorporated by Reference
(i) You must use the service information specified in Table 1 of this AD to do the actions
required by this AD, unless the AD specifies otherwise.
(1) On December 14, 2009 (74 FR 57561, November 9, 2009), the Director of the Federal
Register previously approved the incorporation by reference of the service information listed in Table
1 of this AD.
(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: This e-mail address is being protected from spambots. You need JavaScript enabled to view 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.
Table 1–Material Incorporated by Reference
Service information title
Page(s)
Revision
Date
PIAGGIO AERO INDUSTRIES S.p.A.
Service Bulletin (Mandatory) N. 80–0249.
1 through 9
6
May 27, 2009.
PIAGGIO AERO INDUSTRIES S.p.A.
Service Bulletin (Mandatory) N. 80–0249.
CONFIRMATION
SLIP
Rev. 1
Not Dated.
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
Cover
No. D2
Revised June
16, 2008.
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
1 through 8

1 through 8
Issued in Kansas City, Missouri, on December 30, 2009.
Kim Smith,
Manager, Small Airplane Directorate,
Aircraft Certification Service.
June 30, 2005.
Not Applicable
501 through 506
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
September 14,
2007.
Not Applicable
204, 206, and 210
through 216.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
June 30, 2005.
PIAGGIO AERO PIAGGIO P.180
AVANTI Maintenance Manual, Report
No. 9066, 32–50–00.
501 through 506
Not Applicable
March 1, 2006.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
Cover
No. A3
Revised
December 19,
2008.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
7
Not Applicable
June 30, 2005.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
201, 202, and 207
through 209.
Not Applicable
December 19,
2008.
PIAGGIO AERO PIAGGIO P.180
AVANTI II Maintenance Manual, Report
No. 180–MAN–0200–01105, 32–50–00.
203 and 205
Not Applicable

Dan Weiler
Executive Director of the Cessna Owner Organization
(715) 445-5000, ext. 116
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Daniel
Executive Director
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