Rule2021-21095
Airworthiness Directives; DG Flugzeugbau GmbH Gliders
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
September 30, 2021
Effective
November 4, 2021
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all DG Flugzeugbau GmbH Models DG-808C and DG-1000T gliders. 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 damaged fuel hoses due to environmental and fatigue deterioration. This AD requires inspecting the polyurethane (PU) fuel hoses, replacing the PU fuel hoses if there is damage, and establishing a life limit for the PU fuel hoses. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 86 Issue 187 (Thursday, September 30, 2021)</title>
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[Federal Register Volume 86, Number 187 (Thursday, September 30, 2021)]
[Rules and Regulations]
[Pages 54037-54039]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-21095]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0212; Project Identifier 2018-CE-032-AD; Amendment
39-21715; AD 2021-18-14]
RIN 2120-AA64
Airworthiness Directives; DG Flugzeugbau GmbH Gliders
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
DG Flugzeugbau GmbH Models DG-808C and DG-1000T gliders. 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 damaged fuel hoses due to environmental and
fatigue deterioration. This AD requires inspecting the polyurethane
(PU) fuel hoses, replacing the PU fuel hoses if there is damage, and
establishing a life limit for the PU fuel hoses. The FAA is issuing
this AD to address the unsafe condition on these products.
DATES: This AD is effective November 4, 2021.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of November 4,
2021.
ADDRESSES: For service information identified in this final rule,
contact DG Flugzeugbau GmbH, Otto-Lilienthal Weg 2, D-76646 Bruchsal,
Germany; phone: +49 (0)7251 3202-0; email: <a href="/cdn-cgi/l/email-protection#5c35323a331c383b713a30293b2639293b3e3d29723839"><span class="__cf_email__" data-cfemail="11787f777e5175763c777d64766b7464767370643f7574">[email protected]</span></a>;
website: <a href="https://www.dg-flugzeugbau.de/">https://www.dg-flugzeugbau.de/</a>. 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 <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and
locating Docket No. FAA-2021-0212.
Examining the AD Docket
You may examine the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2021-0212; 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: Jim Rutherford, Aviation Safety
Engineer, General Aviation & Rotorcraft Section, International
Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106;
phone: (816) 329-4165; fax: (816) 329-4090; email:
<a href="/cdn-cgi/l/email-protection#ec868581c29e999884899e8a839e88ac8a8d8dc28b839a"><span class="__cf_email__" data-cfemail="bad0d3d794c8cfced2dfc8dcd5c8defadcdbdb94ddd5cc">[email protected]</span></a>.
[[Page 54038]]
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 all DG Flugzeugbau GmbH
Models DG-808C and DG-1000T gliders. The NPRM published in the Federal
Register on July 1, 2021 (86 FR 35027). The NPRM was prompted by MCAI
originated by the European Aviation Safety Agency (EASA), which is the
Technical Agent for the Member States of the European Union. EASA has
issued EASA AD 2018-0127, dated June 11, 2018 (referred to after this
as ``the MCAI''), to address an unsafe condition on DG Flugzeugbau GmbH
Models DG-808C and DG-1000T gliders. The MCAI states:
An occurrence was reported where, during accomplishment of a 10
years inspection on a DG-808C powered sailplane, a damaged (broken)
PU [polyurethane] fuel hose was found. The result of subsequent
investigation indicated that the damage mode has features of
environmental and fatigue deterioration. Additionally, it was
determined that similar PU fuel hoses are also installed on other
powered sailplane types of the same manufacturer.
This condition, if not detected and corrected, could lead to
reduced or interrupted fuel supply to the engine, consequent loss of
the available power or fire, possibly resulting in reduced control
of the powered sailplane.
To address this potential unsafe condition, DG-Flugzeugbau GmbH
issued the applicable TN [Technical Note], providing instructions to
inspect the affected parts and replace these with serviceable parts.
Additionally, service life limits were established for those
serviceable parts.
For the reasons described above, this [EASA] AD requires
repetitive inspections of the affected parts. This [EASA] AD also
requires replacement of the affected parts with serviceable parts
and introduces life limits for serviceable parts.
You may examine the MCAI in the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-2021-
0212.
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 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 DG Flugzeugbau GmbH Technical Note No. 800/46,
Doc. No. TM800-46 FE-29-01 (English version), Issue 01.a, dated March
7, 2018, for Model DG-808C gliders; and Technical Note No. 1000/38,
Doc. No. TM1000-38 FE-29-01 (English version), Issue 01.a, dated
February 15, 2018, for Model DG-1000T gliders. The service information,
as applicable to the appropriate model glider, specifies inspections of
the PU fuel hoses, replacement of the PU fuel hoses if damage is found
during an inspection, and actions to take when the hoses have reached
their life limit. 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.
Differences Between This AD and the MCAI
The MCAI requires replacing any damaged fuel hoses before next
engine operation, while this AD requires replacing damaged fuel hoses
before further flight. Even though use of the engine is optional and
the glider can operate without the engine, the glider has other
electronic equipment installed that could cause arcing and result in an
in-flight fire if there is a fuel leak.
Costs of Compliance
The FAA estimates that this AD affects 10 gliders of U.S. registry.
The FAA also estimates that inspecting the fuel hoses will take about 2
work-hours. The average labor rate is $85 per work-hour.
Based on these figures, the FAA estimates the cost of this AD on
U.S. operators to be $1,700, or $170 per glider, each inspection cycle.
In addition, the FAA estimates that each replacement required by
this AD would take about 8 work-hours and require parts costing $500.
Based on these figures, the FAA estimates the replacement cost of this
AD to be $1,180 per glider.
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:
2021-18-14 DG Flugzeugbau GmbH: Amendment 39-21715; Docket No. FAA-
2021-0212; Project Identifier 2018-CE-032-AD.
[[Page 54039]]
(a) Effective Date
This airworthiness directive (AD) is effective November 4, 2021.
(b) Affected ADs
None.
(c) Applicability
This AD applies to DG Flugzeugbau GmbH Models DG-808C and DG-
1000T gliders, all serial numbers, certificated in any category.
(d) Subject
Joint Aircraft System Component (JASC) Code 2800, Aircraft Fuel
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 damaged
polyurethane (PU) fuel hoses due to environmental and fatigue
deterioration. The FAA is issuing this AD to prevent reduced or
interrupted fuel supply to the engine or fuel leakage. The unsafe
condition, if not addressed, could result in loss of engine power or
in-flight fire.
(f) Definitions
(1) For purposes of this AD, an ``affected part'' is a PU fuel
hose installed in an airframe fuel system or engine compartment
that:
(i) Does not meet industrial standard DIN 73379-2A, or
(ii) Does not meet ISO 7840-A1 without metal shielding.
(2) For purposes of this AD, a ``serviceable part'' is a PU fuel
hose installed in an airframe fuel system or engine compartment
that:
(i) Meets industrial standard DIN 73379-2A, or
(ii) Meets industrial standard ISO 7840-A1 without metal
shielding.
(g) Inspections for Gliders With An Affected Part Installed
Within the next 30 days after the effective date of this AD and
thereafter at intervals not to exceed 12 months, visually inspect
each affected part for fissures, kinks, and leaks. For this
inspection, the ignition switch must be turned on to run the
electric fuel pump to demonstrate an operating fuel pressure.
(1) If a fissure, kink, or leak is found on an affected part
during any inspection required by the introductory language to
paragraph (g) of this AD, before further flight: Replace all
affected parts with unused (zero hours time-in-service (TIS))
serviceable parts by following paragraphs 3 and 4 of the
Instructions in DG Flugzeugbau GmbH Technical Note No. 800/46, Doc.
No. TM800-46 FE-29-01 (English version) Issue 01.a, dated March 7,
2018 (TN No. 800/46), or paragraphs 3 through 5 of the Instructions
in DG Flugzeugbau GmbH Technical Note No. 1000/38, Doc. No. TM1000-
38 FE-29-01 (English version) Issue 01.a, dated February 15, 2018
(TN No. 1000/38), as applicable to your model glider.
(2) If no fissures, kinks, and leaks are found on all affected
parts during any inspection required by the introductory language to
paragraph (g) of this AD, before each affected part accumulates 6
years since first installation on a glider or within 6 months after
the effective date of this AD, whichever occurs later: Replace all
affected parts with unused (zero hours TIS) serviceable parts by
following paragraphs 3 and 4 of the Instructions in TN No. 800/46 or
paragraphs 3 through 5 of the Instructions in TN No. 1000/38, as
applicable to your model glider. If the date of first installation
on a glider is unknown for any affected hose, replace all affected
hoses within 6 months after the effective date of this AD.
(h) Inspections for Gliders With Only Serviceable Parts Installed
(1) Before or upon accumulating 6 years since first installation
on a glider and thereafter at intervals not to exceed 12 months,
visually inspect each serviceable part for fissures, kinks, and
leaks. For this inspection, the ignition switch must be turned on to
run the electric fuel pump to demonstrate an operating fuel
pressure.
(2) If a fissure, a kink, or a leak is found during any
inspection required by paragraph (h)(1) of this AD, before further
flight, replace the part with an unused (zero hours TIS) serviceable
part by following paragraphs 3 and 4 of the Instructions in TN No.
800/46 or paragraphs 3 through 5 of the Instructions in TN No. 1000/
38, as applicable to your model glider.
(i) Life Limit
Before accumulating 10 years since first installation on a
glider and thereafter at intervals not to exceed 10 years, remove
each serviceable part from service and replace with an unused (zero
hours TIS) serviceable part by following paragraphs 3 and 4 of the
Instructions in TN No. 800/46 or paragraphs 3 through 5 of the
Instructions in TN No. 1000/38, as applicable to your model glider.
(j) Parts Installation Prohibition
As of the effective date of this AD, do not install an affected
part on any glider.
(k) 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 Related Information or email:
<a href="/cdn-cgi/l/email-protection#bb8296faede896faf2e9968c888b96faf6f4f8fbdddada95dcd4cd"><span class="__cf_email__" data-cfemail="625b4f2334314f232b304f5551524f232f2d21220403034c050d14">[email protected]</span></a>.
(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.
(l) Related Information
(1) For more information about this AD contact Jim Rutherford,
Aviation Safety Engineer, General Aviation & Rotorcraft Section,
International Validation Branch, FAA, 901 Locust, Room 301, Kansas
City, MO 64106; phone: (816) 329-4165; fax: (816) 329-4090; email:
<a href="/cdn-cgi/l/email-protection#117b787c3f636465797463777e6375517770703f767e67"><span class="__cf_email__" data-cfemail="a9c3c0c487dbdcddc1ccdbcfc6dbcde9cfc8c887cec6df">[email protected]</span></a>.
(2) Refer to European Aviation Safety Agency (EASA) AD 2018-
0127, dated June 11, 2018, for more information. You may examine the
EASA AD in the AD docket on the website at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-
2021-0212.
(m) 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) DG Flugzeugbau GmbH Technical Note No. 800/46, Doc. No.
TM800-46 FE-29-01 (English version), Issue 01.a, dated March 7,
2018.
(ii) DG Flugzeugbau GmbH Technical Note No. 1000/38, Doc. No.
TM1000-38 FE-29-01 (English version), Issue 01.a, dated February 15,
2018.
(3) For service information identified in this AD, contact DG
Flugzeugbau GmbH, Otto-Lilienthal Weg 2, D-76646 Bruchsal, Germany;
phone: +49 (0)7251 3202-0; email: <a href="/cdn-cgi/l/email-protection#365f5850597652511b505a43514c534351545743185253"><span class="__cf_email__" data-cfemail="92fbfcf4fdd2f6f5bff4fee7f5e8f7e7f5f0f3e7bcf6f7">[email protected]</span></a>; website:
<a href="https://www.dg-flugzeugbau.de/">https://www.dg-flugzeugbau.de/</a>.
(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: <a href="/cdn-cgi/l/email-protection#5e382c7037302d2e3b3d2a3731301e303f2c3f70393128"><span class="__cf_email__" data-cfemail="0e687c2067607d7e6b6d7a6761604e606f7c6f20696178">[email protected]</span></a>, or go to: <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on August 26, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-21095 Filed 9-29-21; 8:45 am]
BILLING CODE 4910-13-P
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