DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0842; Product Identifier 2018-CE-025-AD; Amendment
39-21205; AD 2020-16-20]
RIN 2120-AA64

Airworthiness Directives; Pacific Aerospace Limited Airplanes

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

ACTION: Final rule.

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SUMMARY: The FAA is superseding Airworthiness Directive (AD) AD 2018-
04-09 for Pacific Aerospace Limited Model 750XL airplanes. 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 incorrectly marked and annunciated low oil-
pressure indication warnings. The FAA is issuing this AD to address the
unsafe condition on these products.

DATES: This AD is effective September 22, 2020.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of September 22,
2020.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of April
12, 2018 (83 FR 9793, March 8, 2018).

ADDRESSES: For service information identified in this AD, contact
Pacific Aerospace Limited, Airport Road, Hamilton, Private Bag 3027,
Hamilton 3240, New Zealand; telephone: +64 7 843 6144; facsimile: +64 7
843 6134; email: pacific@aerospace.co.nz; internet: https://www.aerospace.
co.nz. You may view this referenced service information
at the FAA, Airworthiness Products Section, Operational Safety Branch,
901 Locust, Kansas City, Missouri 64106. For information on the
availability of this material at the FAA, call (816) 329-4148. It is
also available on the internet at https://www.regulations.gov by
searching for Docket No. FAA-2018-0842.

Examining the AD Docket

You may examine the AD docket on the internet at https://www.regulations.
gov by searching for and locating Docket No. FAA-2018-
0842; 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 regulatory evaluation, 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, Aerospace Engineer, FAA,
General Aviation & Rotorcraft Section, International Validation Branch,
901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816)
329-4144; fax: (816) 329-4090; email: mike.kiesov@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

The FAA issued a supplemental notice of proposed rulemaking (SNPRM)
to amend 14 CFR part 39 by removing AD 2018-04-09, Amendment 39-19205
(83 FR 9793, March 8, 2018) (AD 2018-04-09) and adding a new AD. AD
2018-04-09 applied to Pacific Aerospace Limited Model 750XL airplanes
and was based on MCAI issued by the Civil Aviation Authority (CAA),
which is the aviation authority for New Zealand. The SNPRM published in
the Federal Register on June 10, 2019 (84 FR 26775). The FAA preceded
the SNPRM with a notice of proposed rulemaking (NPRM) that published in
the Federal Register on October 23, 2018 (83 FR 53409).
The NPRM proposed to require revising the existing airplane flight
manual (AFM) (pilot's operating handbook (POH)) with updated
provisions, clarify that the pressure switch for the low oil pressure
light may be replaced or modified, and retain the requirement to
replace the oil pressure/temperature indicator. The NPRM was based on
the CAA's revision to its previous MCAI, CAA AD DCA/750XL/19A, dated
April 26, 2018 (referred to after this as ``the MCAI''), to mandate the
AFM revisions and also to include an option to modify certain oil
pressure switches. The MCAI states: DCA/750XL/19A revised to introduce
revision 30 March 2018 for PAL 750XL POH AIR3237, and clarify the AD
requirements.
After issuing the NPRM, the FAA discovered an error in the title of
one of the flight manuals to be revised. The SNPRM proposed to correct
the error. The FAA is issuing this AD to require new revisions of the
existing AFM, clarify the requirement to replace or modify the pressure
switch for the low oil pressure light, and retain the requirement to
replace a certain oil pressure/temperature indicator.
You may examine the MCAI on the internet at https://www.regulations.gov
by searching for and locating Docket No. FAA-2018-0842-0002.

Comments

The FAA gave the public the opportunity to participate in
developing this AD. The FAA received no comments on the SNPRM or on the
determination of the cost to the public.

Changes to the AD

The FAA identified an incorrect Air Transport Association of
America (ATA) Code of 57 for Wing in paragraph (d), Subject, of the
SNPRM. The FAA has changed paragraph (d), Subject, of this AD to
identify the correct ATA Code of 79 for Engine Oil.

Conclusion

The FAA reviewed the relevant data and determined that air safety
and the public interest require adopting the AD as proposed except for
the correction to the ATA Code. The FAA has determined that this
change:
Is consistent with the proposal in the SNPRM for
correcting the unsafe condition; and
Does not add any burden upon the public than was already
proposed in the SNPRM.

Related Service Information Under 1 CFR Part 51

The FAA reviewed Pacific Aerospace Temporary Revision Instruction
Letter, dated October 2017, which includes Pacific Aerospace Temporary
Revisions XL/POH/00/001, XL/POH/02/001, and XL/POH/03/001; and Pacific
Aerospace Revision Instruction Letter, dated March 2018, which includes
Pacific Aerospace POH AIR 3237 Revision, dated March 30, 2018, for
750XL airplanes. For the applicable configurations, the service
information includes revisions to the AFM that corrects the incorrect
instrument markings.
The FAA also reviewed Pacific Aerospace Mandatory Service Bulletin
PACSB/XL/088, dated August 11, 2017, which was previously approved for
incorporation by reference on April 12, 2018 (83 FR 9793, March 8,
2018), and describes procedures for replacement or modification of the
low oil-pressure light, pressure switch, and indicator. 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 the ADDRESSES section.

FAA's Determination and Requirements of the Proposed AD

This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with this State of Design Authority, it has
notified us of the unsafe condition described in the MCAI and service
information referenced above. The FAA is proposing this AD because the
agency evaluated all information and determined the unsafe condition
exists and is likely to exist or develop on other products of the same
type design.

Costs of Compliance

The FAA estimates that this AD will affect 22 products of U.S.
registry. The FAA also estimates that it would 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. Required parts would cost
about $500 per product.
Based on these figures, the FAA estimates the cost of this AD on
U.S. operators to be $14,740, or $670 per product.
Since this AD requires the same actions as AD 2018-04-09, the costs
of compliance remain the same and do not impose any additional costs on
U.S. operators.

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 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.

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.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by:

a. Removing Airworthiness Directive (AD) 2018-04-09, Amendment 39-19205
(83 FR 9793, March 8, 2018); and

b. Adding the following new AD: