63060 Federal Register / Vol. 75, No. 198 / Thursday, October 14, 2010 / Rules and Regulations 

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; 

phone: +39 010 6481 353; fax: +39 010 6481 

881; e-mail: airworthiness@piaggioaero.it; 

Internet: http://www.piaggioaero.com. 

(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 

September 30, 2010. 

John R. Colomy, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–25284 Filed 10–13–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0737; Directorate 

Identifier 2010–CE–037–AD; Amendment 

39–16468; AD 2010–21–08] 

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). 

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: 

Some cases of failure of engine oil 

dipsticks, installed on Pratt & Whitney 

Canada (P&WC) PT6A66 and PT6A66B 

engines, were detected on P.180 aeroplanes; 

such failures, due to moisture penetration 

into the dipstick and subsequent corrosion, 

can cause incorrect reading of the engine oil 

low level on the Refuel/Ground Test Panel. 

If left uncorrected, this situation 

could lead to in-flight engine failure(s). 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective 

November 18, 2010. 

On November 18, 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 July 23, 2010 (75 FR 43095). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

Some cases of failure of engine oil 

dipsticks, installed on Pratt & Whitney 

Canada (P&WC) PT6A66 and PT6A66B 

engines, were detected on P.180 aeroplanes; 

such failures, due to moisture penetration 

into the dipstick and subsequent corrosion, 

can cause incorrect reading of the engine oil 

low level on the Refuel/Ground Test Panel. 

If left uncorrected, this situation 

could lead to in-flight engine failure(s). 

This AD requires: 

(1) Repetitive visual checks of the 

engine oil levels to prevent an 

undetected low level condition; 

(2) Repetitive inspections of the oil 

dipsticks to detect faulty units; 

(3) Replacement of faulty oil dipsticks 

or visual checks of the oil level at 

reduced not to exceed intervals, until 

replacement of faulty units. 

The engine TC Holder is currently 

developing a modification that will 

address the unsafe condition identified 

in this AD; once such modification is 

developed, approved and available, 

further mandatory actions might be 

considered. 

This Correction is issued to amend 

the AD number heading: It was PAD, it 

is AD. 

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 

99 products of U.S. registry. We also 

estimate that it will take about 2.5 workhours 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 $21,038 or $212.50 per product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 1 work-hour and require parts 

costing $9,000, for a cost of $9,085 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 


emcdonald on DSK2BSOYB1PROD with RULES
Federal Register / Vol. 75, No. 198 / Thursday, October 14, 2010 / Rules and Regulations 63061 

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 

■ 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 adding 

the following new AD: 

2010–21–08 PIAGGIO AERO INDUSTRIES 

S.p.A.: Amendment 39–16468; Docket 

No. FAA–2010–0737; Directorate 

Identifier 2010–CE–037–AD. 

Effective Date 

(a) This airworthiness directive (AD) 

becomes effective November 18, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to PIAGGIO AERO 

INDUSTRIES S.p.A. Model PIAGGIO P–180 

airplanes, all serial numbers, certificated in 

any category. 

Subject 

(d) Air Transport Association of America 

(ATA) Code 79: Engine Oil. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Some cases of failure of engine oil 

dipsticks, installed on Pratt & Whitney 

Canada (P&WC) PT6A66 and PT6A66B 

engines, were detected on P.180 aeroplanes; 

such failures, due to moisture penetration 

into the dipstick and subsequent corrosion, 

can cause incorrect reading of the engine oil 

low level on the Refuel/Ground Test Panel. 

If left uncorrected, this situation could lead 

to in-flight engine failure(s). 

This AD requires: 

(1) Repetitive visual checks of the engine 

oil levels to prevent an undetected low level 

condition; 

(2) Repetitive inspections of the oil 

dipsticks to detect faulty units; 

(3) Replacement of faulty oil dipsticks or 

visual checks of the oil level at reduced not 

to exceed intervals, until replacement of 

faulty units. 

The engine TC Holder is currently 

developing a modification that will address 

the unsafe condition identified in this AD; 

once such modification is developed, 

approved and available, further mandatory 

actions might be considered. 

This Correction is issued to amend the AD 

number heading: It was PAD, it is AD. 

Actions and Compliance 

(f) Unless already done, do the following 

actions: 

(1) Within one month after November 18, 

2010 (the effective date of this AD) or within 

25 hours time-in-service (TIS) after 

November 18, 2010 (the effective date of this 

AD), whichever occurs first, and repetitively 

thereafter at intervals not to exceed one 

month or 25 hours TIS, whichever occurs 

first, do the following in both engines: 

(i) Visually check the oil level following 

the Accomplishment Instructions, Part A, of 

PIAGGIO AERO INDUSTRIES S.p.A. Service 

Bulletin (Mandatory) N.: 80–0287, Rev. N. 1, 

dated March 24, 2010; and 

(ii) Do a functional check and inspection 

of the dipstick following the 

Accomplishment Instructions, Part B and C, 

of PIAGGIO AERO INDUSTRIES S.p.A. 

Service Bulletin (Mandatory) N.: 80–0287, 

Rev. N. 1, dated March 24, 2010. 

(2) If, as determined by the inspection in 

paragraph (f)(1)(ii) of this AD, the installed 

dipsticks are compliant with P&WC Service 

Bulletin no. 14383, the repetitive inspections 

required in paragraph (f)(1) of this AD may 

be done at intervals not to exceed one month 

or 50 hours TIS, whichever occurs first. 

(3) If a failed dipstick is found during any 

functional check required in paragraph 

(f)(1)(ii) of this AD, do one of the following; 

(i) If a replacement dipstick is available, 

replace it before further flight; or 

(ii) If a replacement dipstick is not 

available, the failed dipstick may be 

reinstalled, but, until replacement, the oil 

level check specified in paragraph (f)(1)(i) of 

this AD must be repetitively done in the 

affected engine within 5 hours TIS from the 

last check. The repetitive oil level check 

interval may be extended to 10 hours TIS 

based on oil consumption in accordance with 

the Accomplishment Instructions, Part B, of 

PIAGGIO AERO INDUSTRIES S.p.A. Service 

Bulletin (Mandatory) N.: 80–0287, Rev. N. 1, 

dated March 24, 2010. 

(4) Replacement of the oil level dipstick 

does not terminate the repetitive check 

requirements of paragraph (f)(1) 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, 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 (EASA) AD No.: 2010 0123, 


emcdonald on DSK2BSOYB1PROD with RULES
63062 Federal Register / Vol. 75, No. 198 / Thursday, October 14, 2010 / Rules and Regulations 

dated June 22, 2010; and PIAGGIO AERO 

INDUSTRIES S.p.A. Service Bulletin 

(Mandatory) N.: 80–0287, Rev. N. 1, dated 

March 24, 2010, for related information. 

Material Incorporated by Reference 

(i) You must use PIAGGIO AERO 

INDUSTRIES S.p.A. Service Bulletin 

(Mandatory) N.: 80–0287, Rev. N. 1, dated 

March 24, 2010, 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; 

phone: +39 010 6481 353; fax: +39 010 6481 

881; e-mail: tech.support@piaggioaero.it; 

Internet: http://www.piaggioaero.com. 

(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 

September 29, 2010. 

John R. Colomy, 

Acting Manager, Small Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–25217 Filed 10–13–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0736; Directorate 

Identifier 2010–CE–035–AD; Amendment 

39–16469; AD 2010–21–09] 

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). 

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: 

A damaged fuel heater caused a fuel 

leakage in the engine nacelle; investigation 

revealed that the damage to the fuel heater 

was due to chafing with an oil cooling system 

hose. 

Piaggio Aero Industries (PAI) issued 

Service Bulletin (SB) 80–0175, which was 

applicable to all aeroplanes and contained 

instructions for a repetitive inspection of the 

affected parts and, if necessary, their 

replacement and/or for the repositioning of 

oil/fuel tubing if minimum clearances were 

not found. 

We are issuing this AD to require 

actions to correct the unsafe condition 

on these products. 

DATES: This AD becomes effective 

November 18, 2010. 

On November 18, 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: S.M. 

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 July 23, 2010 (75 FR 43101). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

A damaged fuel heater caused a fuel 

leakage in the engine nacelle; investigation 

revealed that the damage to the fuel heater 

was due to chafing with an oil cooling system 

hose. 

Piaggio Aero Industries (PAI) issued 

Service Bulletin (SB) 80–0175, which was 

applicable to all aeroplanes and contained 

instructions for a repetitive inspection of the 

affected parts and, if necessary, their 

replacement and/or for the repositioning of 

oil/fuel tubing if minimum clearances were 

not found. 

ENAC of Italy issued PA 2002–335 to 

require the accomplishment of these 

corrective actions. 

Later on, PAI introduced a new Hose 

Assembly (P/N 80–337284–001), which 

allows better clearances and removes the 

problem of potential interference. PAI issued 

SB 80–0175 Revision 1, limiting the 

applicability to aeroplanes with the old P/N 

installed only and giving instructions for the 

replacement with the new Hose Assembly P/ 

N. 

This new AD, which supersedes ENAC 

Italy PA 2002–335, is issued to grant the 

revised applicability and to include an 

optional terminating action, which consists 

in replacing the Hose Assembly P/N 80– 

337276–001 with the new P/N 80–337284– 

001. 

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 

considered the comment received. 

Request to Clarify Requirement to 

Replace Both Flexible Hoses to 

Terminate Repetitive Inspections 

Carlo Cardu of PIAGGIO AERO 

INDUSTRIES S.p.A states that both the 

left-hand and right-hand hose assembly, 

part number (P/N) 80–337276–001, 

must be replaced at the same time with 

a new hose assembly, P/N 80–337284– 

001, in order to terminate the repetitive 

inspection requirement. This 

requirement is specified in PIAGGIO 

AERO INDUSTRIES S.p.A. Service 

Bulletin (Mandatory) N.: 80–0175, Rev. 

N. 1, dated May 14, 2010. 

The commenter requests clarification 

of this requirement in the final rule AD 

action. 

We agree with the commenter. 

Adding this clarification will ensure 

that both hose assemblies are replaced 

at the same time and will clarify the 

intent of the AD issued by the foreign 

airworthiness authority and the 

manufacturer’s service bulletin. 

We are changing the final rule AD 

action based on this comment. 

Conclusion 

We reviewed the available data, 

including the comment received, and 

determined that air safety and the 

public interest require adopting the AD 

with the changes described previously. 

We determined that these changes 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 


emcdonald on DSK2BSOYB1PROD with RULES