AD 2019-07-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | GA 8 Airvan (Pty) Ltd | GA8 | Airworthiness Directives; GA 8 Airvan (Pty) Ltd Airplanes |
| aircraft | GA 8 Airvan (Pty) Ltd | GA8-TC320 | Airworthiness Directives; GA 8 Airvan (Pty) Ltd Airplanes |
Unsafe Condition
A manufacturing quality escape has resulted in wing strut fittings in the effective serial number range to be manufactured with incorrect grain orientation. The fatigue implications of the incorrect grain are not well understood.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the wing strut and strut fitting according to the procedures in GippsAero Service Bulletin SB-GA8-2017-174, Issue 2, dated May 23, 2018. Replace the struts and strut fittings if any damage or wear is found. Report the inspection findings to the manufacturer.
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
GA 8 Airvan (Pty) Ltd Model GA8 and Model GA8-TC320 airplanes with wing strut fittings in the effective serial number range.
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 GA 8 Airvan (Pty) Ltd Model GA8 and Model GA8-TC320 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as certain wing strut fittings manufactured with incorrect grain orientation, which has an unknown effect on fatigue related concerns. We are issuing this AD to require actions to address the unsafe condition on these products.
Applicability Source Text
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(c) Applicability
This AD applies to GA 8 Airvan (Pty) Ltd Model GA8 and Model
GA8-TC320 airplanes, certificated in any category, with a strut or
strut fitting installed that has a part number and serial number
listed in table 1 of GippsAero Service Bulletin SB-GA8-2017-174,
Issue 2, dated May 23, 2018 (GippsAero SB-GA8-2017-174, Issue 2).
Document Text
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[Federal Register Volume 84, Number 75 (Thursday, April 18, 2019)]
[Rules and Regulations]
[Pages 16202-16205]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2019-07702]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2018-0771; Product Identifier 2018-CE-029-AD; Amendment
39-19619; AD 2019-07-08]
RIN 2120-AA64
Airworthiness Directives; GA 8 Airvan (Pty) Ltd 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 GA 8
Airvan (Pty) Ltd Model GA8 and Model GA8-TC320 airplanes. This AD
results from mandatory continuing airworthiness information (MCAI)
issued by an aviation authority of another country to identify and
correct an unsafe condition on an aviation product. The MCAI describes
the unsafe condition as certain wing strut fittings manufactured with
incorrect grain orientation, which has an unknown effect on fatigue
related concerns. We are issuing this AD to require actions to address
the unsafe condition on these products.
DATES: This AD is effective May 23, 2019.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of May 23, 2019.
ADDRESSES: 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-
0771; or in person at Docket Operations, 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 service information identified in this AD, contact GA 8 Airvan
(Pty) Ltd, c/o GippsAero Pty Ltd, Attn: Technical Services, P.O. Box
881, Morwell Victoria 3840, Australia; telephone: + 61 03 5172 1200;
fax: +61 03 5172 1201; email: <a href="/cdn-cgi/l/email-protection#9efff7ecfdecfff8eab0eafbfdf6eeebfceddef3fff6f7f0faecfffffbecf1edeefffdfbb0fdf1f3"><span class="__cf_email__" data-cfemail="3a5b534859485b5c4e144e5f59524a4f58497a575b5253545e485b5b5f4855494a5b595f14595557">[email protected]</span></a>.
You may view this referenced service information at the FAA, Policy and
Innovation Division, 901 Locust, Kansas City, Missouri 64106. For
information on the availability of this material at the FAA, call (816)
329-4148. It is also available on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for Docket No. FAA-2018-0771.
FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aerospace Engineer, FAA,
Small Airplane Standards Branch, 901 Locust, Room 301, Kansas City,
Missouri 64106; telephone: (816) 329-4059; fax: (816) 329-4090; email:
<a href="/cdn-cgi/l/email-protection#eb8f849e8cc5999e8f84879b83ab8d8a8ac58c849d"><span class="__cf_email__" data-cfemail="5d3932283a732f283932312d351d3b3c3c733a322b">[email protected]</span></a>.
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 GA 8 Airvan (Pty) Ltd Model
GA8 and Model GA8-TC320 airplanes. The NPRM was published in the
Federal Register on September 17, 2018 (83 FR 46900). The NPRM proposed
to correct an unsafe condition for the specified products and was based
on mandatory continuing airworthiness information (MCAI) originated by
the Civil Aviation Safety Authority (CASA), which is the aviation
authority of the Commonwealth of Australia. The MCAI states:
Amendment 1 of this [CASA] AD is issued to amend the replacement
times as Service Bulletin GA8-2017-174 Issue 2 changed the mandatory
replacement times for part number GA8-570026-035 strut from 6000
hours time in service or 3 calendar years to 9000 hours time in
service or 5 calendar years, whichever occurs first.
A manufacturing quality escape has resulted in wing strut
fittings in the effective serial number range to be manufactured
with incorrect grain orientation. The fatigue implications of the
incorrect grain are not well understood. Therefore, CASA has
mandated a conservative factored fatigue life limit based on the
known fleet data of the affected aircraft. CASA will continue to
gather data for the purposes of managing the fleet removal of these
fittings from service.
The MCAI can be found in the AD docket on the internet at: <a href="https://www.regulations.gov/document?D=FAA-2018-0771-0002">https://www.regulations.gov/document?D=FAA-2018-0771-0002</a>.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or
[[Page 16203]]
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 the AD 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 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 GippsAero Service Bulletin SB-GA8-2017-174, Issue 2,
dated May 23, 2018. The service information describes procedures for
wing strut and strut fitting inspection and replacement. 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 would affect 50 airplanes of U.S.
registry. The average labor rate is $85 per work-hour.
We estimate that it would take about 8 work-hours and $200 for
parts to do the initial inspections of this AD, for a cost of $880 per
airplane and $44,000 for the U.S. operator fleet. We estimate that it
would take about 5 work-hours and $200 for parts to do the repetitive
inspections, for a cost of $625 per airplane and $31,250 for the U.S.
operator fleet per inspection cycle.
In addition, we estimate that replacing the struts and strut
fittings would take about 10 work-hours and require parts costing
$7,000, for a cost of $7,850 per airplane and $392,500 for the U.S.
operator fleet.
Reporting the inspection findings would require about 1 work-hour,
for a cost of $85 per airplane and $4,250 for the U.S. operator fleet
per inspection cycle.
According to the manufacturer, some of the costs of this AD may be
covered under warranty, thereby reducing the cost impact on affected
individuals. We do not control warranty coverage for affected
individuals. As a result, we have included all costs in our cost
estimate.
Paperwork Reduction Act
A federal agency may not conduct or sponsor, and a person is not
required to respond to, nor shall a person be subject to a penalty for
failure to comply with a collection of information subject to the
requirements of the Paperwork Reduction Act unless that collection of
information displays a currently valid OMB Control Number. The OMB
Control Number for this information collection is 2120-0056. Public
reporting for this collection of information is estimated to be
approximately 1 hour per response, including the time for reviewing
instructions, searching existing data sources, gathering and
maintaining the data needed, completing and reviewing the collection of
information. All responses to this collection of information are
mandatory as required by this AD; the nature and extent of
confidentiality to be provided, if any. Send comments regarding this
burden estimate or any other aspect of this collection of information,
including suggestions for reducing this burden to: Information
Collection Clearance Officer, Federal Aviation Administration, 10101
Hillwood Parkway, Fort Worth, TX 76177-1524.
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 small airplanes, gliders,
balloons, airships, domestic business jet transport airplanes, and
associated appliances to the Director of the Policy and Innovation
Division.
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 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.
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-
0771; or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
the NPRM, the regulatory evaluation, any comments received, and other
information. The street address for Docket Operations (telephone (800)
647-5527) is in the ADDRESSES section. Comments will be available in
the AD docket shortly after receipt.
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):
2019-07-08 GA 8 Airvan (Pty) Ltd: Amendment 39-19619; Docket No.
FAA-2018-0771; Product Identifier 2018-CE-029-AD.
[[Page 16204]]
(a) Effective Date
This AD becomes effective May 23, 2019.
(b) Affected ADs
None.
(c) Applicability
This AD applies to GA 8 Airvan (Pty) Ltd Model GA8 and Model
GA8-TC320 airplanes, certificated in any category, with a strut or
strut fitting installed that has a part number and serial number
listed in table 1 of GippsAero Service Bulletin SB-GA8-2017-174,
Issue 2, dated May 23, 2018 (GippsAero SB-GA8-2017-174, Issue 2).
(d) Subject
Air Transport Association of America (ATA) Code 57: Wings.
(e) Reason
This AD was prompted by mandatory continuing airworthiness
information (MCAI) issued by the aviation authority of another
country to identify and correct an unsafe condition on an aviation
product. The MCAI describes the unsafe condition as certain wing
strut fittings manufactured with incorrect grain orientation, which
has an unknown effect on fatigue-related concerns. We are issuing
this AD to detect and address fatigue-related damage to the wing
strut fittings, which could lead to failure of the wing with
consequent loss of control of the airplane.
(f) Actions and Compliance
Unless already done, do the following actions in paragraphs
(f)(1) through (7) of this AD:
(1) Within 3 months after May 23, 2019 (the effective date of
this AD) or within 100 hours time-in-service (TIS) after May 23,
2019 (the effective date of this AD), whichever occurs first, with
the wing struts removed, visually inspect each forward and aft wing
strut fitting and fuselage attachment point for cracks, corrosion,
and damage. If there is a crack, any corrosion, or any damage,
before further flight, do the applicable corrective actions
(including checking torque, restoring surface protection, reworking
areas with fouling, and replacing any part with a crack, corrosion,
or damage). Follow the procedures in Parts C1, C2, and D or E, as
applicable, in the Accomplishment Instructions in GippsAero SB-GA8-
2017-174, Issue 2.
(2) Within 3 months after May 23, 2019 (the effective date of
this AD) or within 100 hours TIS after May 23, 2019 (the effective
date of this AD), whichever occurs first, and thereafter at
intervals not to exceed 100 hours TIS, visually inspect each strut
and strut fitting for cracks, corrosion, and damage. If there is a
crack, any corrosion, or any damage, before further flight, do the
applicable corrective actions (including checking torque, restoring
surface protection, and replacing any part with a crack, corrosion,
or damage). Follow the procedures in Parts B and D or E, as
applicable, in the Accomplishment Instructions of GippsAero SB-GA8-
2017-174, Issue 2.
(3) Within 1,000 hours TIS after doing the inspections required
in paragraph (f)(1) of this AD and thereafter at intervals not to
exceed 1,000 hours TIS, with the wing struts installed, visually
inspect each forward and aft wing strut, strut fitting, and strut
fitting lug hole for cracks, corrosion, and damage. If there is a
crack, any corrosion, or any damage, before further flight, do the
applicable corrective actions (including additional inspections,
replacing hardware, and replacing any part with a crack, corrosion,
or damage). Follow the procedures in Parts C3 and D or E, as
applicable, in the Accomplishment Instructions of GippsAero SB-GA8-
2017-174, Issue 2.
(4) To use an eddy current or fluorescent liquid penetrant
inspection method instead of a visual inspection for the
requirements in paragraph (f)(1) of this AD, the Manager, Small
Airplane Standards Branch, FAA must approve your inspection method,
and the Manager's approval letter must specifically refer to this
AD. Send your approval request to the contact information found in
paragraph (g)(1) of this AD.
(5) As of May 23, 2019 (the effective date of this AD), remove
from service each part on or before exceeding its replacement time
listed in Parts D and E of table 3 of GippsAero SB-GA8-2017-174,
Issue 2, and replace with an airworthy part by following the
procedures in Part D or Part E, as applicable, in the Accomplishment
Instructions of GippsAero SB-GA8-2017-174, Issue 2.
(6) For each part that has, on May 23, 2019 (the effective date
of this AD), exceeded its replacement time listed in Parts D and E
of table 3 of GippsAero SB-GA8-2017-174, Issue 2, you may comply
with the requirements in paragraph (f)(5) of this AD within 100
hours TIS after May 23, 2019 (the effective date of this AD) or
within 12 months after May 23, 2019 (the effective date of this AD),
whichever occurs first.
(7) Within 24 hours after each inspection required in paragraphs
(f)(1) and (2) of this AD, submit a report of the inspection results
as specified in the Document Compliance Notice of GippsAero SB-GA8-
2017-174, Issue 2, even if no damage is found, to the Civil Aviation
Safety Authority (CASA) and GA 8 Airvan (Pty) Ltd. Also include in
the report the total hours TIS on the airplane and the type of
operation. You may use the contact information found in paragraph
(i)(3) of this AD to contact GA 8 Airvan (Pty) Ltd. To contact CASA,
use the online CASA Defect Reporting Service at the following
internet address: <a href="https://drs.casa.gov.au/">https://drs.casa.gov.au/</a>.
(g) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
Small Airplane Standards Branch, FAA, has the authority to approve
AMOCs for this AD, if requested using the procedures found in 14 CFR
39.19. Send information to ATTN: Doug Rudolph, Aerospace Engineer,
FAA, Small Airplane Standards Branch, 901 Locust, Room 301, Kansas
City, Missouri 64106; telephone: (816) 329-4059; fax: (816) 329-
4090; email: <a href="/cdn-cgi/l/email-protection#690d061c0e471b1c0d06051901290f0808470e061f"><span class="__cf_email__" data-cfemail="14707b61733a6661707b78647c547275753a737b62">[email protected]</span></a>. Before using any approved AMOC on
any airplane to which the AMOC applies, notify your appropriate
principal inspector (PI) in the FAA Flight Standards District Office
(FSDO), or lacking a PI, your local FSDO.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain corrective actions from a manufacturer, the action must
instead be accomplished using a method approved by the Manager,
Small Airplane Standards Branch, FAA; or CASA.
(3) Reporting Requirements: A federal agency may not conduct or
sponsor, and a person is not required to respond to, nor shall a
person be subject to a penalty for failure to comply with a
collection of information subject to the requirements of the
Paperwork Reduction Act unless that collection of information
displays a currently valid OMB Control Number. The OMB Control
Number for this information collection is 2120-0731. Public
reporting for this collection of information is estimated to be
approximately 1 hour per response, including the time for reviewing
instructions, searching existing data sources, gathering and
maintaining the data needed, completing and reviewing the collection
of information. All responses to this collection of information are
voluntary; the nature and extent of confidentiality to be provided,
if any. Send comments regarding this burden estimate or any other
aspect of this collection of information, including suggestions for
reducing this burden to: Information Collection Clearance Officer,
Federal Aviation Administration, 10101 Hillwood Parkway, Fort Worth,
TX 76177-1524.
(h) Related Information
Refer to MCAI issued by CASA, AD No. AD/GA8/9, Amendment 1,
dated May 29, 2018. You may examine the MCAI on the internet at
<a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No.
FAA-2018-0771.
(i) 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 the AD specifies otherwise.
(i) GippsAero Service Bulletin SB-GA8-2017-174, Issue 2, dated
May 23, 2018 (ii) [Reserved]
(3) For service information identified in this AD, contact GA 8
Airvan (Pty) Ltd, c/o GippsAero Pty Ltd, Attn: Technical Services,
P.O. Box 881, Morwell Victoria 3840, Australia; telephone: + 61 03
5172 1200; fax: +61 03 5172 1201; email:
<a href="/cdn-cgi/l/email-protection#1b7a726978697a7d6f356f7e78736b6e79685b767a7372757f697a7a7e6974686b7a787e35787476"><span class="__cf_email__" data-cfemail="97f6fee5f4e5f6f1e3b9e3f2f4ffe7e2f5e4d7faf6fffef9f3e5f6f6f2e5f8e4e7f6f4f2b9f4f8fa">[email protected]</span></a>.
(4) You may view this service information at the FAA, Policy and
Innovation Division, 901 Locust, Kansas City, Missouri 64106. For
information on the availability of this material at the FAA, call
(816) 329-4148. In addition, you can access this service information
on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and
locating Docket No. FAA-2018-0771.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records
[[Page 16205]]
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 Kansas City, Missouri, on April 5, 2019.
Melvin J. Johnson,
Deputy Director, Policy & Innovation Division, Aircraft Certification
Service.
[FR Doc. 2019-07702 Filed 4-17-19; 8:45 am]
BILLING CODE 4910-13-P
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Retrieved: Apr 6, 2026
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