AD 2016-10-15
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
A wiring failure, external to the center wing fuel tank, could cause a hot short circuit to a maximum level sensor wire, resulting in excessive heating of the maximum level sensor element, which could create an ignition source in the center wing fuel tank vapor space.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the wiring of the maximum level sensors in the center wing fuel tank, perform after-installation tests, and take corrective action if necessary. Revise the airplane maintenance or inspection program to incorporate fuel airworthiness limitation items and critical design configuration control limitations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 12 months of the effective date (July 12, 2016).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes, certificated in any category, equipped with a center wing tank.
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 certain Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes. This AD was prompted by a design review that revealed that a wiring failure, external to the center wing fuel tank, could cause a hot short circuit to a maximum level sensor wire, and result in excessive heating of the maximum level sensor element. This AD requires modifying the wiring of the maximum level sensors in the center wing fuel tank, performing after-installation tests, and corrective action if necessary. This AD also requires revising the airplane maintenance or inspection program to incorporate fuel airworthiness limitation items and critical design configuration control limitations. We are issuing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to Fokker Services B.V. Model F.28 Mark 0070 and
0100 airplanes, certificated in any category, equipped with a center
wing tank.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 81, Number 109 (Tuesday, June 7, 2016)]
[Rules and Regulations]
[Pages 36440-36443]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2016-11928]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2015-5810; Directorate Identifier 2014-NM-116-AD;
Amendment 39-18526; AD 2016-10-15]
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 certain
Fokker Services B.V. Model F.28 Mark 0070 and 0100 airplanes. This AD
was prompted by a design review that revealed that a wiring failure,
external to the center wing fuel tank, could cause a hot short circuit
to a maximum level sensor wire, and result in excessive heating of the
maximum level sensor element. This AD requires modifying the wiring of
the maximum level sensors in the center wing fuel tank, performing
after-installation tests, and corrective action if necessary. This AD
also requires revising the airplane maintenance or inspection program
to incorporate fuel airworthiness limitation items and critical design
configuration control limitations. We are issuing this AD to prevent
the potential of ignition sources inside fuel tanks, which, in
combination with flammable fuel vapors, could result in fuel tank
explosions and consequent loss of the airplane.
DATES: This AD becomes effective July 12, 2016.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of July 12,
2016.
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#671302040f090e04060b140215110e0402142701080c0c02154904080a"><span class="__cf_email__" data-cfemail="99edfcfaf1f7f0faf8f5eafcebeff0fafcead9fff6f2f2fcebb7faf6f4">[email protected]</span></a>; Internet <a href="http://www.myfokkerfleet.com">http://www.myfokkerfleet.com</a>. You may view
[[Page 36441]]
this referenced service information at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the
availability of this material at the FAA, call 425-227-1221. 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-2015-5810.
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-2015-
5810; 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 this AD, the regulation evaluation, any comments received, and
other information. The street address for the Docket Office (telephone
800-647-5527) is Docket 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: Tom Rodriguez, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1137;
fax 425-227-1149.
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 certain Fokker Services
B.V. Model F.28 Mark 0070 and 0100 airplanes. The NPRM published in the
Federal Register on November 27, 2015 (80 FR 74039) (``the NPRM'').
The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Union, has issued EASA
Airworthiness Directive 2014-0138, dated May 30, 2014 (referred to
after this as the Mandatory Continuing Airworthiness Information, or
``the MCAI''), to correct an unsafe condition for certain Fokker
Services B.V. Model F.28 Mark 0070 and 0100 airplanes. The MCAI states:
* * * [T]he FAA published Special Federal Aviation Regulation (SFAR)
88, and the Joint Aviation Authorities (JAA) published Interim
Policy INT/POL/25/12.
The review conducted by Fokker Services on the Fokker 70/100
design, in response to these regulations, revealed that a wiring
failure, external to the centre wing fuel tank, causing a hot short
circuit to a maximum (max) level sensor wire may result in excessive
heating of the max level sensor element.
This condition, if not corrected, could create an ignition
source in the centre wing fuel tank vapour space, possibly resulting
in a fuel tank explosion and consequent loss of the aeroplane.
EASA issued AD 2012-0240 [<a href="http://ad.easa.europa.eu/blob/easa_ad_2012_0240.pdf/AD_2012-0240">http://ad.easa.europa.eu/blob/easa_ad_2012_0240.pdf/AD_2012-0240</a>], to address this unsafe
condition, which required installation of three fuses in the wiring
of the max level sensor(s) in the centre wing fuel tank per Fokker
Services Service Bulletin (SB) SBF100-28-073. After that AD was
issued, it was found that this technical solution caused fuel spills
during refueling and, consequently, EASA cancelled AD 2012-0240.
More recently, Fokker Services issued SBF100-28-078, which
cancelled SBF100-28-073, to correct the unsafe condition without the
risk of fuel spills.
For the reasons described above, this [EASA] AD requires removal
of one fuse from post-SBF100-28-073 aeroplanes, and installation of
only two fuses on pre-SBF100-28-073 aeroplanes and, subsequently,
the implementation of the associated Critical Design Configuration
Control Limitation (CDCCL) items.
More information this subject can be found in Fokker Services
All Operators Message AOF100.186#03.
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-2015-
5810.
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.
Explanation of Changes Made to This AD
We have made the following changes to this AD. These changes are
for formatting purposes and do not affect the requirements of this AD.
<bullet> Added a new paragraph (j) to this AD to specify the
required service information, and redesignated subsequent paragraphs
accordingly.
<bullet> Revised paragraph (g) of this AD by referring to the
document citations in paragraph (j) of this AD.
Conclusion
We reviewed the relevant data and determined that air safety and
the public interest require adopting this AD with the changes described
previously and minor editorial changes. We have determined that these
minor changes:
<bullet> Are consistent with the intent that was proposed in the
NPRM for correcting 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
We reviewed Fokker Service Bulletin SBF100-28-078, dated January
23, 2014, and Fokker Manual Change Notification MCNM-F100-166, dated
January 23, 2014.
This service information describes procedures for modifying the
wiring of the maximum level sensors in the center wing fuel tank,
after-installation tests, and corrective action if necessary. 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.
Costs of Compliance
We estimate that this AD affects 15 airplanes of U.S. registry.
We also estimate that it takes up to 9 work-hours per product to
modify the wiring of the maximum level sensors in the center wing fuel
tank, as specified in this AD. The average labor rate is $85 per work-
hour. Required parts will cost about $1,700 per product. Based on these
figures, we estimate the cost of this modification on U.S. operators to
be up to $36,975, or up to $2,465 per product.
We also estimate that it takes about 1 work-hour per product to
revise the maintenance or inspection program as specified in this AD.
The average labor rate is $85 per work-hour. Based on these figures, we
estimate the cost of this revision on U.S. operators to be $1,275, or
$85 per product.
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.
[[Page 36442]]
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 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):
2016-10-15 Fokker Services B.V.: Amendment 39-18526. Docket No.
FAA-2015-5810; Directorate Identifier 2014-NM-116-AD.
(a) Effective Date
This AD becomes effective July 12, 2016.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Fokker Services B.V. Model F.28 Mark 0070 and
0100 airplanes, certificated in any category, equipped with a center
wing tank.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Reason
This AD was prompted by a design review which revealed that a
wiring failure, external to the center wing fuel tank, could cause a
hot short circuit to a maximum level sensor wire, and result in
excessive heating of the maximum level sensor element. We are
issuing this AD to prevent the potential of ignition sources inside
fuel tanks, which, in combination with flammable fuel vapors, could
result in fuel tank explosions and consequent loss of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Wiring Modification
Within 24 months after the effective date of this AD: Modify the
wiring of the maximum level sensors of the center wing fuel tank, as
specified in paragraph (g)(1) or (g)(2) of this AD, as applicable.
Before further flight after accomplishing the modification, do all
applicable tests and corrective actions, in accordance with Part 5
of the Accomplishment Instructions of the service information
identified in paragraph (j) of this AD.
(1) For post-SBF100-28-073 configuration airplanes: Do the
modification in accordance with Part 1 or Part 3, as applicable, of
the Accomplishment Instructions of the service information
identified in paragraph (j) of this AD.
(2) For pre-SBF100-28-073 configuration airplanes: Do the
modification in accordance with Part 2 or Part 4, as applicable, of
the Accomplishment Instructions of the service information
identified in paragraph (j) of this AD.
(h) Revise the Maintenance or Inspection Program
Within 30 days after installing the modification specified in
paragraph (g)(1) or (g)(2) of this AD, as applicable: Revise the
airplane maintenance or inspection program, as applicable, to
incorporate the fuel airworthiness limitation items and critical
design configuration control limitations (CDCCLs) specified in
paragraph 2.L.(1)(c) of Fokker Service Bulletin SBF100-28-078, dated
January 23, 2014.
(i) No Alternative Actions, Intervals, and/or CDCCLs
After accomplishing the revision required by paragraph (h) of
this AD, no alternative actions (e.g., inspections), intervals, or
CDCCLs may be used unless the actions, intervals, or CDCCLs are
approved as an alternative method of compliance in accordance with
the procedures specified in paragraph (k)(1) of this AD.
(j) Required Service Information
Do the actions specified in this AD in accordance with Fokker
Service Bulletin SBF100-28-078, dated January 23, 2014, and Fokker
Manual Change Notification MCNM-F100-166, dated January 23, 2014, as
applicable.
(k) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Branch, ANM-116, 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
Branch, send it to ATTN: Tom Rodriguez, Aerospace Engineer,
International Branch, ANM-116, Transport Airplane Directorate, FAA,
1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1137;
fax 425-227-1149. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#1f26325e5152322e2e29325e52505c324d5a4e4a5a4c4b4c5f797e7e31787069"><span class="__cf_email__" data-cfemail="9ba2b6dad5d6b6aaaaadb6dad6d4d8b6c9decacedec8cfc8dbfdfafab5fcf4ed">[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: As of the effective date of
this AD, 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 Branch, ANM-116, Transport
Airplane Directorate, FAA; or the European Aviation Safety Agency
(EASA); or Fokker B.V. Service's EASA Design Organization Approval
(DOA). If approved by the DOA, the approval must include the DOA-
authorized signature.
(l) Related Information
Refer to Mandatory Continuing Airworthiness Information (MCAI)
EASA Airworthiness Directive 2014-0138, dated May 30, 2014, 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-2015-5810.
(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 SBF100-28-078, dated January 23,
2014, including the attached required drawings specified in
paragraphs (m)(2)(i)(A), (m)(2)(i)(B), and (m)(2)(i)(C) of this AD,
as applicable.
(A) Drawing W41192, Sheet 052, Issue AW, ``Retro-Fit Wiring
Diagram, Tank Fueling/Defueling, Center Tank,'' undated;
(B) Drawing W41192, Sheet 054, Issue AW, ``Retro-Fit Wiring
Diagram, Tank Fueling/Defueling,'' undated; and
(C) Drawing W59520-405, ``Cableloom Connection List,'' Sheet 3,
Issue F, dated May 12, 2011.
(ii) Fokker Manual Change Notification MCNM-F100-166, dated
January 23, 2014.
(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#552130363d3b3c363439263027233c36302615333a3e3e30277b363a38"><span class="__cf_email__" data-cfemail="dfabbabcb7b1b6bcbeb3acbaada9b6bcbaac9fb9b0b4b4baadf1bcb0b2">[email protected]</span></a>; Internet <a href="http://www.myfokkerfleet.com">http://www.myfokkerfleet.com</a>.
[[Page 36443]]
(4) You may view this service information at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For
information on the availability of this material at the FAA, call
425-227-1221.
(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 Renton, Washington, on May 12, 2016.
Suzanne Masterson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2016-11928 Filed 6-6-16; 8:45 am]
BILLING CODE 4910-13-P
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Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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