AD 2018-25-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fokker Services B.V. | F.28 Mark 0070 | Airworthiness Directives; Fokker Services B.V. Airplanes |
| aircraft | Fokker Services B.V. | F.28 Mark 0100 | Airworthiness Directives; Fokker Services B.V. Airplanes |
Unsafe Condition
Debris from the parking brake shut off valve (PBSOV) could create a partial blockage of the restrictor check valve in the hydraulic return line of the PBSOV.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the restrictor check valve with an improved valve that has a filter screen.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes, all serial numbers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
We are adopting a new airworthiness directive (AD) for all Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. This AD was prompted by reports that debris from the parking brake shut off valve (PBSOV) could create a partial blockage of the restrictor check valve in the hydraulic return line of the PBSOV. This AD requires replacing the restrictor check valve with an improved valve that has a filter screen. We are issuing this AD to address the unsafe condition on these products.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to Fokker Services B.V. Model F28 Mark 0070 and
0100 airplanes, certificated in any category, all serial numbers.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 83, Number 236 (Monday, December 10, 2018)]
[Rules and Regulations]
[Pages 63392-63394]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2018-26463]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2018-0767; Product Identifier 2018-NM-068-AD; Amendment
39-19514; AD 2018-25-03]
RIN 2120-AA64
Airworthiness Directives; Fokker Services B.V. Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for all
Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. This AD
was prompted by reports that debris from the parking brake shut off
valve (PBSOV) could create a partial blockage of the restrictor check
valve in the hydraulic return line of the PBSOV. This AD requires
replacing the restrictor check valve with an improved valve that has a
filter screen. We are issuing this AD to address the unsafe condition
on these products.
DATES: This AD is effective January 14, 2019.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 14,
2019.
ADDRESSES: For service information identified in this final rule,
contact Fokker Services B.V., Technical Services Dept., P.O. Box 1357,
2130 EL Hoofddorp, the Netherlands; telephone +31 (0)88-6280-350; fax
+31 (0)88-6280-111; email <a href="/cdn-cgi/l/email-protection#196d7c7a7177707a78756a7c6b6f707a7c6a597f7672727c6b377a7674"><span class="__cf_email__" data-cfemail="8cf8e9efe4e2e5efede0ffe9fefae5efe9ffcceae3e7e7e9fea2efe3e1">[email protected]</span></a>; internet <a href="http://www.myfokkerfleet.com">http://www.myfokkerfleet.com</a>. You may view this service information at the
FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA.
For information on the availability of this material at the FAA, call
206-231-3195. It is also available on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2018-
0767.
Examining the AD Docket
You may examine the AD docket on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2018-
0767; 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 (phone: 800-647-
5527) 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: Tom Rodriguez, Aerospace Engineer,
International Section, Transport Standards Branch, FAA, 2200 South
216th St., Des Moines, WA 98198; telephone and fax 206-231-3226.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to all Fokker Services B.V.
Model F28 Mark 0070 and 0100 airplanes. The NPRM published in the
Federal Register on September 7, 2018 (83 FR 45362). The NPRM was
prompted by reports that debris from the PBSOV could create a partial
blockage of the restrictor check valve in the hydraulic return line of
the PBSOV. The NPRM proposed to require replacing the restrictor check
valve with an improved valve that has a filter screen.
We are issuing this AD to address debris from the PBSOV that could
create a partial blockage of the restrictor check valve in the
hydraulic return line of the PBSOV, which, if not corrected, may
prevent complete main landing gear extension, possibly resulting in
damage to the airplane during landing, and consequent injury to
occupants.
The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Union, has issued EASA
Airworthiness Directive 2018-0077 dated April 6, 2018 (referred to
after this as the Mandatory Continuing Airworthiness Information, or
``the MCAI''), to correct an unsafe condition for Fokker Services B.V.
Model F28 Mark 0070 and 0100 airplanes. The MCAI states:
Service experience with Fokker 70 and Fokker 100 aeroplanes has
shown that debris from the parking brake shut-off valve (PBSOV) can
eventually block the restrictor check valve in the hydraulic return
line of the PBSOV. Prompted by these findings, Fokker Services
issued [Service Bulletin] SBF100-32-159 to introduce a new PBSOV and
a one-time inspection for debris in the affected part of the
hydraulic return system. EASA issued AD 2009-0220 [which corresponds
to FAA AD 2010-22-05 (75 FR 66649, October 29, 2010) (``AD 2010-22-
05'')] to require those actions. In addition, Fokker Services issued
SBF100-32-163 to introduce the option to install a restrictor check
valve with a filter screen in the return line of the PBSOV. A recent
review of in-service experience and the SBF100-32-159 inspection
results revealed new occurrences of debris that obstructed (but did
not completely block) the restrictor check valve.
This condition, if not corrected, might prevent complete main
landing gear extension, possibly resulting in damage to the
aeroplane during landing, and consequent injury to occupants.
To address this potential unsafe condition, Fokker Services
issued Revision 1 of SBF100-32-163, providing instructions to
replace the restrictor check valve with the improved valve
incorporating a filter screen.
For the reason described above, this [EASA] AD requires the
replacement of the restrictor check valve in the return line of the
PBSOV with the improved valve.
You may examine the MCAI in the AD docket on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2018-
0767.
Comments
We gave the public the opportunity to participate in developing
this final rule. We received no comments on the NPRM or on the
determination of the cost to the public.
Conclusion
We reviewed the relevant data and determined that air safety and
the public interest require adopting this final rule as proposed,
except for minor editorial changes. We have determined that these minor
changes:
<bullet> Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
<bullet> Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
Fokker Services B.V. has issued Service Bulletin SBF100-32-163,
Revision 1, dated February 21, 2018. This service information describes
procedures for removing the restrictor check valve in the hydraulic
return line of the PBSOV and installing an improved restrictor check
valve that has a filter screen. 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.
[[Page 63393]]
Costs of Compliance
We estimate that this AD affects 4 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
2 work-hours x $85 per hour = $170........................... $1,282 $1,452 $5,808
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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.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service, as authorized by
FAA Order 8000.51C. In accordance with that order, issuance of ADs is
normally a function of the Compliance and Airworthiness Division, but
during this transition period, the Executive Director has delegated the
authority to issue ADs applicable to transport category airplanes and
associated appliances to the Director of the System Oversight Division.
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) Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) 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
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 (AD):
2018-25-03 Fokker Services B.V.: Amendment 39-19514; Docket No. FAA-
2018-0767; Product Identifier 2018-NM-068-AD.
(a) Effective Date
This AD is effective January 14, 2019.
(b) Affected ADs
This AD affects AD 2010-22-05, Amendment 39-16484 (75 FR 66649,
October 29, 2010) (``AD 2010-22-05'').
(c) Applicability
This AD applies to Fokker Services B.V. Model F28 Mark 0070 and
0100 airplanes, certificated in any category, all serial numbers.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
gear.
(e) Reason
This AD was prompted by service experience showing that debris
from the parking brake shut off valve (PBSOV) could create a partial
blockage of the restrictor check valve in the hydraulic return line
of the PBSOV. We are issuing this AD to address this condition,
which, if not corrected, may prevent complete main landing gear
extension, possibly resulting in damage to the airplane during
landing, and consequent injury to occupants.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Definitions
For the purposes of this AD, the definitions in paragraphs
(g)(1) through (g)(3) apply.
(1) An affected part is any hydraulic restrictor check valve
having part number (P/N) D71293-003, P/N D71295-401, or P/N D71296-
401.
(2) Group 1 airplanes are those that have an affected part
installed.
(3) Group 2 airplanes are those that do not have an affected
part installed.
(h) Required Actions
For Group 1 airplanes, within 24 months after the effective date
of this AD, modify the airplane by replacing each affected part with
a restrictor check valve that has a filter screen, P/N CKLX0517200B
or P/N CKLX0520100B, as applicable, in accordance with the
accomplishment instructions of Fokker Service Bulletin SBF100-32-
163, Revision 1, dated February 21, 2018.
(i) Parts Installation Prohibition
Do not install an affected part on any airplane, as required by
paragraph (i)(1) or (i)(2) of this AD, as applicable.
(1) For Group 1 airplanes: After modification of the airplane as
required by paragraph (h) of this AD.
(2) For Group 2 airplanes: From the effective date of this AD.
(j) Terminating Actions for AD 2010-22-05
Accomplishing the actions required by paragraph (h) of this AD
terminates all requirements of AD 2010-22-05.
(k) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Section, Transport Standards Branch, FAA, 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 International Section, send it to the attention of
the person identified in paragraph (l)(2) of this AD. Information
may
[[Page 63394]]
be emailed to: <a href="/cdn-cgi/l/email-protection#526b7f131c1f7f6363647f131f1d117f0017030717010601123433337c353d24"><span class="__cf_email__" data-cfemail="162f3b57585b3b2727203b575b59553b44534743534542455670777738717960">[email protected]</span></a>. 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.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain corrective actions from a manufacturer, the action must be
accomplished using a method approved by the Manager, International
Section, Transport Standards Branch, FAA, FAA; or the European
Aviation Safety Agency (EASA); or Fokker Services B.V.'s EASA Design
Organization Approval (DOA). If approved by the DOA, the approval
must include the DOA-authorized signature.
(l) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) EASA Airworthiness Directive 2018-0077, dated April 6, 2018,
for related information. This MCAI may be found in the AD docket on
the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and
locating Docket No. FAA-2018-0767.
(2) For more information about this AD, contact Tom Rodriguez,
Aerospace Engineer, International Section, Transport Standards
Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone
and fax 206-231-3226.
(m) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) 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 this AD specifies otherwise.
(i) Fokker Service Bulletin SBF100-32-163, Revision 1, dated
February 21, 2018.
(ii) [Reserved]
(3) For service information identified in this AD, contact
Fokker Services B.V., Technical Services Dept., P.O. Box 1357, 2130
EL Hoofddorp, the Netherlands; telephone +31 (0)88-6280-350; fax +31
(0)88-6280-111; email <a href="/cdn-cgi/l/email-protection#d1a5b4b2b9bfb8b2b0bda2b4a3a7b8b2b4a291b7bebabab4a3ffb2bebc"><span class="__cf_email__" data-cfemail="ed99888e8583848e8c819e889f9b848e889ead8b828686889fc38e8280">[email protected]</span></a>; internet <a href="http://www.myfokkerfleet.com">http://www.myfokkerfleet.com</a>.
(4) You may view this service information at the FAA, Transport
Standards Branch, 2200 South 216th St., Des Moines, WA. For
information on the availability of this material at the FAA, call
206-231-3195.
(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, call 202-741-6030, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Des Moines, Washington, on November 23, 2018.
John P. Piccola,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2018-26463 Filed 12-7-18; 8:45 am]
BILLING CODE 4910-13-P
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Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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