Document ID: FAA-2021-0604-0003
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: Pacific Aerospace Limited Airplanes
Posted Date: 2021-11-05T04:00Z

[Federal Register Volume 86, Number 212 (Friday, November 5, 2021)]
[Rules and Regulations]
[Pages 61056-61058]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-24085]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0604; Project Identifier 2019-CE-007-AD; Amendment 
39-21771; AD 2021-21-11]
RIN 2120-AA64

Airworthiness Directives; Pacific Aerospace Limited Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain Pacific Aerospace Limited Model 750XL airplanes. This AD was 
prompted by 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 identifies 
the unsafe condition as insufficient clearance between the engine 
mount, the Beta control rod, and the inter-turbine temperature (ITT) 
sensing probe that could lead to chafing damage. This AD requires 
inspecting the engine mount, the temperature probe, and the reversing 
cable for damage, and taking any necessary corrective actions. The FAA 
is issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective December 10, 2021.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of December 10, 
2021.

ADDRESSES: For service information identified in this final rule, 
contact the Civil Aviation Authority of New Zealand, Level 15, Asteron 
Centre, 55 Featherston Street, Wellington 6011; phone: +64 4 560 9400; 
fax: +64 4 569 2024; email: [email protected]. You may view this service 
information at the FAA, Airworthiness Products Section, Operational 
Safety Branch, 901 Locust, Kansas City, MO 64106. For information on 
the availability of this material at the FAA, call (816) 329-4148. It 
is also available at https://www.regulations.gov by searching for and 
locating Docket No. FAA-2021-0604.

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov by 
searching for and locating Docket No. FAA-2021-0604; or in person at 
Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, 
except Federal holidays. The AD docket contains this final rule, the 
MCAI, any comments received, and other information. The address for 
Docket Operations is 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: Mike Kiesov, Aviation Safety Engineer, 
General Aviation & Rotorcraft Section, International Validation Branch, 
FAA, 901 Locust, Room 301, Kansas City, MO 64106; phone: (816) 329-
4144; fax: (816) 329-4090; email: [email protected].

SUPPLEMENTARY INFORMATION:

Background

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 by adding an AD that would apply to certain serial-numbered 
Pacific Aerospace Limited Model 750XL airplanes. The NPRM published in 
the Federal Register on July 28, 2021 (86 FR 40381). The NPRM was 
prompted by MCAI originated by the Civil Aviation Authority (CAA), 
which is the aviation authority for New Zealand. The CAA of New Zealand 
has issued AD DCA/750XL/35, effective date February 7, 2019 (referred 
to after this as ``the MCAI''), to correct an unsafe condition for 
certain Pacific Aerospace Limited Model 750XL airplanes. The MCAI 
states:

    DCA/750XL/35 is prompted by a review of the engine installation 
procedures, which identified that the clearance between the engine 
mount, the Beta control rod and the inter-turbine temperature (ITT) 
sensing probe could be insufficient and result in chafing damage. 
The [CAA] AD is issued to introduce the instructions in Pacific 
Aerospace Mandatory Service Bulletin (MSB) PACSB/XL/102 issue 2, 
dated 5 November 2018.

    You may examine the MCAI in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA-2021-
0604.

Discussion of Final Airworthiness Directive

Comments

    The FAA received no comments on the NPRM or on the determination of 
the costs.

Conclusion

    This product has been approved by the aviation authority of another 
country and is approved for operation in the United States. Pursuant to 
the FAA's bilateral agreement with this State of Design Authority, it 
has notified the FAA of the unsafe condition described in the MCAI and 
service information

[[Page 61057]]

referenced above. The FAA reviewed the relevant data and determined 
that air safety requires adopting this AD as proposed. Accordingly, the 
FAA is issuing this AD to address the unsafe condition on these 
products. This AD is adopted as proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed Pacific Aerospace Limited Mandatory Service 
Bulletin PACSB/XL/102, Issue 2, dated November 5, 2018. The service 
information contains procedures for removing support clamps if 
installed by following the prior version of the service bulletin; 
inspecting the engine mount, the temperature probe, and the reversing 
cable for signs of chafing or damage; installing anti-chafing blade 
tape onto the engine mount tube; and obtaining further guidance for 
corrective actions. This service information is reasonably available 
because the interested parties have access to it through their normal 
course of business or by the means identified in ADDRESSES.

Costs of Compliance

    The FAA estimates that this AD affects 23 airplanes of U.S. 
registry. The FAA also estimates it will take about 2 work-hours per 
airplane to comply with the inspection and install anti-chafing blade 
tape. The average labor rate is $85 per work-hour and required parts 
would cost about $10 per airplane.
    Based on these figures, the FAA estimates the inspection cost of 
this AD on U.S. operators to be $4,140 or $180 per airplane.
    The damage found during the required inspection may vary from 
airplane to airplane. The FAA has no way of knowing how much damage 
each airplane may have or the cost to repair the damage for each 
airplane.
    Contacting the CAA of New Zealand, if required, would take about 1 
work-hour for an estimated cost of $85 per airplane.
    The FAA has included all known costs in this cost estimate. 
According to the manufacturer, however, some of the costs of this AD 
may be covered under warranty, thereby reducing the cost impact on 
affected operators.

Paperwork Reduction Act

    A federal agency may not conduct or sponsor, and a person is not 
required to respond to, nor shall a person be subject to a penalty for 
failure to comply with a collection of information subject to the 
requirements of the Paperwork Reduction Act unless that collection of 
information displays a current valid OMB Control Number. The OMB 
Control Number for this information collection is 2120-0056. Public 
reporting for this collection of information is estimated to take 
approximately 1 hour per response, including the time for reviewing 
instructions, searching existing data sources, gathering and 
maintaining the data needed, and completing and reviewing the 
collection of information. All responses to this collection of 
information are mandatory. Send comments regarding this burden estimate 
or any other aspect of this collection of information, including 
suggestions for reducing this burden, to: Information Collection 
Clearance Officer, Federal Aviation Administration, 10101 Hillwood 
Parkway, Fort Worth, TX 76177-1524.

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.
    The FAA is 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

    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) Will not affect intrastate aviation in Alaska, 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.

List of Subjects in 14 CFR Part 39

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

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

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 airworthiness 
directive:

2021-21-11 Pacific Aerospace Limited: Amendment 39-21771; Docket No. 
FAA-2021-0604; Project Identifier 2019-CE-007-AD.

(a) Effective Date

    This airworthiness directive (AD) is effective December 10, 
2021.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Pacific Aerospace Limited Model 750XL 
airplanes, serial numbers 101 through 215, 220, 8001, and 8002, 
certificated in any category.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7100, Power Plant 
System.

(e) Unsafe Condition

    This AD was prompted by 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 insufficient 
clearance between the engine mount, the Beta control rod, and the 
inter-turbine temperature (ITT) sensing probe that could lead to 
chafing damage. The FAA is issuing this AD to prevent damage to the 
engine mount, temperature probe, and the reversing cable. The unsafe 
condition, if not addressed, could result in chafing damage to the 
ITT system and binding of the Beta control rod.

(f) Actions and Compliance

    (1) Unless already done, within 165 hours time-in-service after 
the effective date of this AD, inspect the engine mount, the 
temperature probe, and the reversing cable for damage, and, before 
further flight, take all necessary corrective actions and install 
anti-chafing blade tape onto the engine mount tube by following the 
Accomplishment Instructions in Pacific Aerospace Limited Mandatory 
Service Bulletin PACSB/XL/102, Issue 2, dated November 5, 2018.

[[Page 61058]]

    (2) Where the service information states to contact Pacific 
Aerospace Limited if chafing or any damage is present on an engine 
mount, temperature probe, or reversing cable, this AD requires 
instead that you contact the Civil Aviation Authority (CAA) of New 
Zealand at the contact information in paragraph (i)(3) of this AD.

 (g) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, International Validation Branch, has the 
authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, 
send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the manager of the certification office, send it to the 
attention of the person identified in paragraph (h)(1) of this AD or 
by email at: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

 (h) Related Information

    (1) For more information about this AD, contact Mike Kiesov, 
Aviation Safety Engineer, General Aviation & Rotorcraft Section, 
International Validation Branch, FAA, 901 Locust, Room 301, Kansas 
City, MO 64106; phone: (816) 329-4144; fax: (816) 329-4090; email: 
[email protected].
    (2) Refer to CAA of New Zealand AD No. DCA/750XL/35, effective 
date February 7, 2019, for more information. You may examine the CAA 
AD in the AD docket at https://www.regulations.gov by searching for 
and locating Docket No. FAA-2021-0604.

(i) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference of the service information listed in this 
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Pacific Aerospace Limited Mandatory Service Bulletin PACSB/
XL/102, Issue 2, dated November 5, 2018.
    (ii) [Reserved]
    (3) For service information identified in this AD, contact the 
Civil Aviation Authority of New Zealand, Level 15, Asteron Centre, 
55 Featherston Street, Wellington 6011; phone: +64 4 560 9400; fax: 
+64 4 569 2024; email: [email protected].
    (4) You may view this service information at FAA, Airworthiness 
Products Section, Operational Safety Branch, 901 Locust, Kansas 
City, MO 64106. For information on the availability of this material 
at the FAA, call (816) 329-4148.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, email: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on October 8, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2021-24085 Filed 11-4-21; 8:45 am]
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