81 FR 35655 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 81, Issue 107 (June 3, 2016)
Federal Aviation Administration
Federal Register Volume 81, Issue 107 (June 3, 2016)
| Page Range | 35655-35657 | |
| FR Document | 2016-12849 |
[Federal Register Volume 81, Number 107 (Friday, June 3, 2016)] [Proposed Rules] [Pages 35655-35657] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-12849] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2016-6672; Directorate Identifier 2016-NM-022-AD] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 airplanes. This proposed AD was prompted by a report that the grounding jumper between the environmental control system (ECS) bracket and the current return network (CRN) strap near passenger 1 left and 1 right entry doors was not bonded correctly during manufacturing. This proposed AD would require changing the configuration of the grounding jumpers connecting the ECS brackets and CRN straps; measuring the bond resistance; and related investigative and corrective actions if necessary. We are proposing this AD to prevent an incorrectly bonded jumper between the ECS bracket and the CRN strap, which does not provide proper grounding to the door frames at door 1 left and 1 right. If a fault occurs, an electrical shock hazard can exist to passengers and flight crew and could result in personal or fatal injury. DATES: We must receive comments on this proposed AD by July 18, 2016. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: [[Page 35656]]Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. Fax: 202-493-2251. Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may view 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 http://www.regulations.gov by searching for and locating Docket No. FAA-2016-6672. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016- 6672; 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 proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Brendan Shanley, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057- 3356; phone: 425-917-6492; fax: 425-917-6590; email: [email protected]. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2016-6672; Directorate Identifier 2016-NM-022-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion We have received a report that the grounding jumper between the ECS bracket and the CRN strap near passenger1 left and 1 right entry doors was not bonded correctly during manufacturing. Engineering documentation did not include applying an electrical bond between the ECS bracket and CRN strap. The existing bond configuration does not ground the door frame structure in the event of an electrical equipment fault. This condition, if not corrected, could result in an electrical shock hazard to passengers and flight crew and could result in personal or fatal injury. Related Service Information Under 1 CFR Part 51 We reviewed Boeing Service Bulletin B787-81205-SB530025-00, Issue 001, dated July 17, 2014. The service information describes procedures for changing the configuration of the grounding jumpers connecting the ECS brackets and CRN straps; measuring the bond resistance; and related investigative and corrective actions 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. FAA's Determination We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements This proposed AD would require accomplishing the actions specified in the service information described previously. For information on the procedures, see this service information at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-6672. The phrase ``related investigative actions'' is used in this proposed AD. Related investigative actions are follow-on actions that (1) are related to the primary action, and (2) further investigate the nature of any condition found. Related investigative actions in an AD could include, for example, inspections. The phrase ``corrective actions'' is used in this proposed AD. Corrective actions correct or address any condition found. Corrective actions in an AD could include, for example, repairs. Costs of Compliance We estimate that this proposed AD affects 6 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost per Cost on U.S. Action Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- Installation...................... 6 work-hours x $85 per $100 $610 $3,660 hour = $510. ---------------------------------------------------------------------------------------------------------------- We have received no definitive data that would enable us to provide cost estimates for the on-condition actions specified in this proposed AD. According to the manufacturer, some of the costs of this proposed 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. 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 [[Page 35657]] 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. Regulatory Findings We determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 proposed regulation: (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. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 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): The Boeing Company: Docket No. FAA-2016-6672; Directorate Identifier 2016-NM-022-AD. (a) Comments Due Date We must receive comments by July 18, 2016. (b) Affected ADs None. (c) Applicability This AD applies to The Boeing Company Model 787-8 airplanes, certificated in any category, as identified in Boeing Service Bulletin B787-81205-SB530025-00, Issue 001, dated July 17, 2014. (d) Subject Air Transport Association (ATA) of America Code 53; Fuselage. (e) Unsafe Condition This AD was prompted by a report that the grounding jumper between the environmental control system (ECS) bracket and the current return network (CRN) strap near passenger 1 left and 1 right entry doors was not bonded correctly during manufacturing. We are issuing this AD to prevent an incorrectly bonded jumper between the ECS bracket and the CRN strap, which does not provide proper grounding to the door frames at door 1 left and 1 right. If a fault occurs, an electrical shock hazard can exist to passengers and flight crew and could result in personal or fatal injury. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Grounding Jumper Revision Within 12 months after the effective date of this AD: Change the configuration of the grounding jumpers connecting the ECS brackets and CRN straps, including measuring the bond resistance and doing all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Boeing Service Bulletin B787-81205-SB530025-00, Issue 001, dated July 17, 2014. Do all applicable related investigative and corrective actions before further flight. (h) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle Aircraft Certification Office (ACO), 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 ACO, send it to the attention of the person identified in paragraph (i)(1) of this AD. Information may be emailed to: [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. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (i) Related Information (1) For more information about this AD, contact Brendan Shanley, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6492; fax: 425-917-6590; email: [email protected]. (2) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544- 5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may view 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. Issued in Renton, Washington, on May 20, 2016. Victor Wicklund, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016-12849 Filed 6-2-16; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 81, No. 107 / Friday, June 3, 2016 / Proposed Rules 35655
Novel or Unusual Design Features (i) Identify non-normal operation or alert indications, if they are presented
The BHTI Model 525 helicopter will aircraft system conditions, and on monochromatic displays that are not
incorporate the following novel or (ii) Determine the appropriate actions, capable of conforming to the color
unusual design features: an advanced if any. convention in paragraph (e)(1) of these
(2) Be readily and easily detectable special conditions.
CAS system. The novel design includes
and intelligible by the flightcrew under (f) Use of the colors red, amber, and
the integration of audio and visual
all foreseeable operating conditions, yellow in the cockpit for functions other
alerts, tactical sensors, and CAS
including conditions where multiple than flightcrew alerting must be limited
message consolidation. The new
alerts are provided. and must not adversely affect flightcrew
technologies associated with integrated
(3) Be removed when the alerting alerting.
visual, aural, tactile, and alert messaging
condition no longer exists. Issued in Fort Worth, Texas, on May 24,
are more effective in alerting the (b) Alerts must conform to the
flightcrew and aiding them in decision- 2016.
following prioritization hierarchy based Lance T. Gant
making than the discrete colored lights on the urgency of flightcrew awareness
for warning, caution, and advisory alerts Manager, Rotorcraft Directorate, Aircraft
and response. Certification Service.
prescribed in § 29.1322 alone. (1) Warning: For conditions that [FR Doc. 2016–13148 Filed 6–2–16; 8:45 am]
Discussion require immediate flightcrew awareness
BILLING CODE 4910–13–P
and immediate flightcrew response.
The current 14 CFR part 29 standards
(2) Caution: For conditions that
do not provide adequate standards for
require immediate flightcrew awareness DEPARTMENT OF TRANSPORTATION
the advanced CAS system of the Bell
and subsequent flightcrew response.
Model 525 helicopter due to the (3) Advisory: For conditions that
complexity of the aircraft systems and Federal Aviation Administration
require flightcrew awareness and may
the modes of the fly by wire primary require subsequent flightcrew response.
flight controls. The proposed special 14 CFR Part 39
(c) Warning and caution alerts must:
condition will update definitions, (1) Be prioritized within each [Docket No. FAA–2016–6672; Directorate
define a prioritization scheme, expand category, when necessary. Identifier 2016–NM–022–AD]
color requirements, and address (2) Provide timely attention-getting RIN 2120–AA64
performance for flightcrew alerting to cues through at least two different
reflect changes in technology and senses by a combination of aural, visual, Airworthiness Directives; The Boeing
functionality. or tactile indications. Company Airplanes
Applicability (3) Permit each occurrence of the AGENCY: Federal Aviation
attention-getting cues required by Administration (FAA), DOT.
As discussed above, these special paragraph (c)(2) of these special
conditions are applicable to the BHTI ACTION: Notice of proposed rulemaking
conditions to be acknowledged and
Model 525 helicopter. Should BHTI suppressed, unless they are required to (NPRM).
apply at a later date for a change to the be continuous.
type certificate to include another SUMMARY: We propose to adopt a new
(d) The alert function must be airworthiness directive (AD) for certain
model incorporating the same novel or designed to minimize the effects of false
unusual design feature, the special The Boeing Company Model 787–8
and nuisance alerts. In particular, it airplanes. This proposed AD was
conditions would apply to that model as must be designed to:
well. prompted by a report that the grounding
(1) Prevent the presentation of an alert jumper between the environmental
Conclusion that is inappropriate or unnecessary. control system (ECS) bracket and the
(2) Provide a means to suppress an current return network (CRN) strap near
This action affects only certain novel attention-getting component of an alert
or unusual design features on one model passenger 1 left and 1 right entry doors
caused by a failure of the alerting was not bonded correctly during
of helicopter. It is not a rule of general function that interferes with the
applicability. manufacturing. This proposed AD
flightcrew’s ability to safely operate the would require changing the
List of Subjects in 14 CFR Part 29 helicopter. This means must not be configuration of the grounding jumpers
readily available to the flightcrew so connecting the ECS brackets and CRN
Aircraft, Aviation safety, Reporting that it could be operated inadvertently
and recordkeeping requirements. straps; measuring the bond resistance;
or by habitual reflexive action. When an and related investigative and corrective
The authority citation for these alert is suppressed, there must be a clear
special conditions is as follows: actions if necessary. We are proposing
and unmistakable annunciation to the this AD to prevent an incorrectly
Authority: 49 U.S.C. 106(g), 40113, 44701, flightcrew that the alert has been bonded jumper between the ECS bracket
44702, 44704. suppressed. and the CRN strap, which does not
(e) Visual alert indications must: provide proper grounding to the door
The Proposed Special Conditions
(1) Conform to the following color frames at door 1 left and 1 right. If a
Accordingly, the Federal Aviation convention: fault occurs, an electrical shock hazard
Administration (FAA) proposes the (i) Red for warning alert indications. can exist to passengers and flight crew
following special conditions as part of (ii) Amber or yellow for caution alert
mstockstill on DSK3G9T082PROD with PROPOSALS
and could result in personal or fatal
the type certification basis for Bell indications.
injury.
Helicopter Textron, Inc., Model 525 (iii) Any color except red, amber,
helicopters. yellow, or green for advisory alert DATES: We must receive comments on
indications. this proposed AD by July 18, 2016.
Flightcrew Alerting (2) Use visual coding techniques, ADDRESSES: You may send comments,
(a) Flightcrew alerts must: together with other alerting function using the procedures found in 14 CFR
(1) Provide the flightcrew with the elements in the cockpit, to distinguish 11.43 and 11.45, by any of the following
information needed to: between warning, caution, and advisory methods:
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![Federal Register / Vol. 81, No. 107 / Friday, June 3, 2016 / Proposed Rules 35657
detail the scope of the Agency’s (a) Comments Due Date Commercial Airplanes Organization
authority. We must receive comments by July 18, Designation Authorization (ODA) that has
We are issuing this rulemaking under 2016. been authorized by the Manager, Seattle
the authority described in Subtitle VII, ACO, to make those findings. To be
(b) Affected ADs approved, the repair method, modification
Part A, Subpart III, Section 44701:
None. deviation, or alteration deviation must meet
‘‘General requirements.’’ Under that the certification basis of the airplane, and the
section, Congress charges the FAA with (c) Applicability approval must specifically refer to this AD.
promoting safe flight of civil aircraft in This AD applies to The Boeing Company
air commerce by prescribing regulations (i) Related Information
Model 787–8 airplanes, certificated in any
for practices, methods, and procedures category, as identified in Boeing Service (1) For more information about this AD,
the Administrator finds necessary for Bulletin B787–81205–SB530025–00, Issue contact Brendan Shanley, Aerospace
safety in air commerce. This regulation 001, dated July 17, 2014. Engineer, Systems and Equipment Branch,
is within the scope of that authority ANM–130S, FAA, Seattle Aircraft
(d) Subject Certification Office (ACO), 1601 Lind Avenue
because it addresses an unsafe condition
Air Transport Association (ATA) of SW., Renton, WA 98057–3356; phone: 425–
that is likely to exist or develop on America Code 53; Fuselage. 917–6492; fax: 425–917–6590; email:
products identified in this rulemaking brendan.shanley@faa.gov.
action. (e) Unsafe Condition
(2) For service information identified in
This AD was prompted by a report that the this AD, contact Boeing Commercial
Regulatory Findings grounding jumper between the Airplanes, Attention: Data & Services
We determined that this proposed AD environmental control system (ECS) bracket Management, P.O. Box 3707, MC 2H–65,
would not have federalism implications and the current return network (CRN) strap Seattle, WA 98124–2207; telephone 206–
under Executive Order 13132. This near passenger 1 left and 1 right entry doors 544–5000, extension 1; fax 206–766–5680;
proposed AD would not have a was not bonded correctly during Internet https://www.myboeingfleet.com. You
manufacturing. We are issuing this AD to may view this referenced service information
substantial direct effect on the States, on prevent an incorrectly bonded jumper
the relationship between the national at the FAA, Transport Airplane Directorate,
between the ECS bracket and the CRN strap, 1601 Lind Avenue SW., Renton, WA. For
Government and the States, or on the which does not provide proper grounding to information on the availability of this
distribution of power and the door frames at door 1 left and 1 right. If material at the FAA, call 425–227–1221.
responsibilities among the various a fault occurs, an electrical shock hazard can
levels of government. exist to passengers and flight crew and could Issued in Renton, Washington, on May 20,
For the reasons discussed above, I result in personal or fatal injury. 2016.
certify this proposed regulation: Victor Wicklund,
(f) Compliance
(1) Is not a ‘‘significant regulatory Acting Manager, Transport Airplane
Comply with this AD within the Directorate, Aircraft Certification Service.
action’’ under Executive Order 12866, compliance times specified, unless already
(2) Is not a ‘‘significant rule’’ under done. [FR Doc. 2016–12849 Filed 6–2–16; 8:45 am]
the DOT Regulatory Policies and BILLING CODE 4910–13–P
Procedures (44 FR 11034, February 26, (g) Grounding Jumper Revision
1979), Within 12 months after the effective date
(3) Will not affect intrastate aviation of this AD: Change the configuration of the DEPARTMENT OF TRANSPORTATION
in Alaska, and grounding jumpers connecting the ECS
(4) Will not have a significant brackets and CRN straps, including Federal Aviation Administration
economic impact, positive or negative, measuring the bond resistance and doing all
applicable related investigative and 14 CFR Part 39
on a substantial number of small entities
corrective actions, in accordance with the
under the criteria of the Regulatory Accomplishment Instructions of Boeing [Docket No. FAA–2016–6673; Directorate
Flexibility Act. Service Bulletin B787–81205–SB530025–00, Identifier 2015–NM–092–AD]
List of Subjects in 14 CFR Part 39 Issue 001, dated July 17, 2014. Do all
applicable related investigative and RIN 2120–AA64
Air transportation, Aircraft, Aviation corrective actions before further flight.
safety, Incorporation by reference, Airworthiness Directives; Ameri-King
(h) Alternative Methods of Compliance Corporation Emergency Locator
Safety. (AMOCs) Transmitters
The Proposed Amendment (1) The Manager, Seattle Aircraft
Accordingly, under the authority Certification Office (ACO), FAA, has the AGENCY: Federal Aviation
delegated to me by the Administrator, authority to approve AMOCs for this AD, if Administration (FAA), DOT.
requested using the procedures found in 14 ACTION: Notice of proposed rulemaking
the FAA proposes to amend 14 CFR part CFR 39.19. In accordance with 14 CFR 39.19,
39 as follows: (NPRM).
send your request to your principal inspector
or local Flight Standards District Office, as SUMMARY: We propose to adopt a new
PART 39—AIRWORTHINESS appropriate. If sending information directly
DIRECTIVES to the manager of the ACO, send it to the
airworthiness directive (AD) for certain
attention of the person identified in Ameri-King Corporation emergency
■ 1. The authority citation for part 39 paragraph (i)(1) of this AD. Information may locator transmitters (ELTs) as installed
continues to read as follows: be emailed to: 9-ANM-Seattle-ACO-AMOC- on various aircraft. This proposed AD
Requests@faa.gov. was prompted by multiple reports of
mstockstill on DSK3G9T082PROD with PROPOSALS
Authority: 49 U.S.C. 106(g), 40113, 44701.
(2) Before using any approved AMOC, ELT failure. This proposed AD was also
§ 39.13 [Amended] notify your appropriate principal inspector, prompted by a report of noncompliance
■ 2. The FAA amends § 39.13 by adding or lacking a principal inspector, the manager to quality standards and manufacturer
of the local flight standards district office/
the following new airworthiness processes related to Ameri-King
certificate holding district office.
directive (AD): (3) An AMOC that provides an acceptable Corporation ELTs. Failure to adhere to
The Boeing Company: Docket No. FAA– level of safety may be used for any repair, these standards and processes could
2016–6672; Directorate Identifier 2016– modification, or alteration required by this result in ELTs that do not function. This
NM–022–AD. AD if it is approved by the Boeing proposed AD would require repetitive
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Document Created: 2018-02-08 07:29:45
Document Modified: 2018-02-08 07:29:45
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Proposed Rules | |
| Action | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by July 18, 2016. | |
| Contact | Brendan Shanley, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057- 3356; phone: 425-917-6492; fax: 425-917-6590; email: [email protected] | |
| FR Citation | 81 FR 35655 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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