Airworthiness Directives; DG Flugzeugbau GmbH Gliders, 54037-54039 [2021-21095]
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Federal Register / Vol. 86, No. 187 / Thursday, September 30, 2021 / Rules and Regulations
hoist control installed, before each hoist
operation after December 16, 2020 (the
effective date of AD 2020–24–03),
accomplish a ground test of the UP/DOWN
switches for proper function. If there is any
uncommanded hoist action, before further
flight, remove the DUNLOP cyclic stick grip
from service. Accomplishing the
modification in paragraph (2) of EASA AD
2021–0023 constitutes terminating action for
the requirements of this paragraph.
(2) Except as specified in paragraph (h) of
this AD: Comply with all required actions
and compliance times specified in, and in
accordance with, EASA AD 2021–0023.
(h) Exceptions to EASA AD 2021–0023
(1) Where EASA AD 2021–0023 refers to
October 8, 2020 (the effective date of EASA
Emergency AD 2020–0217–E, dated
October 6, 2020 (EASA AD 2020–0217–E)),
this AD requires using the effective date of
this AD.
(2) Where the service information
referenced in paragraph (1) of EASA AD
2021–0023 specifies that the ‘‘work must be
performed on the helicopter by the operator,’’
this AD requires that the work be
accomplished by a mechanic that meets the
requirements of 14 CFR part 65 subpart D.
(3) Where EASA AD 2021–0023 refers to its
effective date, this AD requires using the
effective date of this AD.
(4) Where EASA AD 2021–0023 refers to
flight hours (FH), this AD requires using
hours time-in-service.
(5) Where the service information
referenced in EASA AD 2021–0023 specifies
to discard certain placards and Flight Manual
pages (that were required by EASA AD 2020–
0217–E), this AD requires removing them.
(6) Where paragraph (3) of EASA AD 2021–
0023 specifies to ‘‘inform all flight crews and,
thereafter, operate the helicopter
accordingly,’’ this AD does not require those
actions.
(7) Where paragraph (4) of EASA AD 2021–
0023 allows modifying a Group 2 helicopter
into a Group 1 helicopter, this AD also
requires accomplishing the requirements of
paragraph (g)(1) of this AD.
(8) The ‘‘Remarks’’ section of EASA AD
2021–0023 does not apply to this AD.
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(i) No Reporting Requirement
Where the service information referenced
in EASA AD 2021–0023 specifies to submit
certain information to the manufacturer, this
AD does not include that requirement.
(j) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, International Validation
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 manager of the International Validation
Branch, send it to the attention of the person
identified in paragraph (k) of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
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or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(k) Related Information
For more information about this AD,
contact Daniel Poblete, Aerospace Engineer,
Systems & Equipment Section, Los Angeles
ACO Branch, Compliance & Airworthiness
Division, 3960 Paramount Blvd., Lakewood,
CA 90712; telephone (562) 627–5335; email
daniel.d.poblete@faa.gov.
(l) 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) European Union Aviation Safety Agency
(EASA) AD 2021–0023, dated January 19,
2021.
(ii) [Reserved]
(3) For EASA AD 2021–0023, contact the
EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221 8999
000; email ADs@easa.europa.eu; internet
www.easa.europa.eu. You may find this
EASA AD on the EASA website at https://
ad.easa.europa.eu.
(4) You may view this service information
at the FAA, Office of the Regional Counsel,
Southwest Region, 10101 Hillwood Pkwy.,
Room 6N–321, Fort Worth, TX 76177. For
information on the availability of this
material at the FAA, call 817–222–5110. This
material may be found in the AD docket at
https://www.regulations.gov by searching for
and locating Docket No. FAA–2021–0559.
(5) You may view this material that is
incorporated by reference at the National
Archives and Records Administration
(NARA). For information on the availability
of this material at NARA, email
fr.inspection@nara.gov, or go to: https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on September 7, 2021.
Ross Landes,
Deputy Director for Regulatory Operations,
Compliance & Airworthiness Division,
Aircraft Certification Service.
[FR Doc. 2021–21117 Filed 9–29–21; 8:45 am]
BILLING CODE 4910–13–P
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
Federal Aviation
Administration (FAA), DOT.
AGENCY:
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ACTION:
54037
Final rule.
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.
SUMMARY:
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:
info@dg-flugzeugbau.de; website:
https://www.dg-flugzeugbau.de/. 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–2021–0212.
DATES:
Examining the AD Docket
You may examine the AD docket at
https://www.regulations.gov 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: jim.rutherford@
faa.gov.
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54038
Federal Register / Vol. 86, No. 187 / Thursday, September 30, 2021 / Rules and Regulations
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 https://
www.regulations.gov by searching for
and locating Docket No. FAA–2021–
0212.
Discussion of Final Airworthiness
Directive
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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
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17:35 Sep 29, 2021
Jkt 253001
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 workhour.
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
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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
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 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.
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Federal Register / Vol. 86, No. 187 / Thursday, September 30, 2021 / Rules and Regulations
(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.
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(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 timein-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
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17:35 Sep 29, 2021
Jkt 253001
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: 9-AVS-AIR-730-AMOC@faa.gov.
(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,
PO 00000
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54039
MO 64106; phone: (816) 329–4165; fax: (816)
329–4090; email: jim.rutherford@faa.gov.
(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 https://www.regulations.gov 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:
info@dg-flugzeugbau.de; website: https://
www.dg-flugzeugbau.de/.
(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: fr.inspection@nara.gov, or go to:
https://www.archives.gov/federal-register/cfr/
ibr-locations.html.
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
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2021–0574; Project
Identifier 2019–SW–073–AD; Amendment
39–21725; AD 2021–19–07]
RIN 2120–AA64
Airworthiness Directives; He´licopte`res
Guimbal Helicopters
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for certain
SUMMARY:
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]]>Agencies
[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 [www.gpo.gov]
[FR Doc No: 2021-21095]
-----------------------------------------------------------------------
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.
-----------------------------------------------------------------------
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: [email protected];
website: https://www.dg-flugzeugbau.de/. 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-2021-0212.
Examining the AD Docket
You may examine the AD docket at https://www.regulations.gov 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:
[email protected].
[[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 https://www.regulations.gov 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:
[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.
(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:
[email protected].
(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 https://www.regulations.gov 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: [email protected]; website:
https://www.dg-flugzeugbau.de/.
(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 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
