82 FR 14128 - Special Conditions: Lufthansa Technik AG; Boeing Model 747-8 Series Airplanes, Large Non-Structural Glass in the Passenger Compartment

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 51 (March 17, 2017)

Page Range		14128-14130
FR Document		2017-05331

These special conditions are issued for the Boeing Model 747-8 airplane. This airplane, as modified by Lufthansa Technik AG (Lufthansa), will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is the installation of large, non-structural glass panels in the cabin area of an executive interior occupied by passengers and crew. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

Federal Register, Volume 82 Issue 51 (Friday, March 17, 2017)

[Federal Register Volume 82, Number 51 (Friday, March 17, 2017)]
[Rules and Regulations]
[Pages 14128-14130]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-05331]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 25

[Docket No. FAA-2015-7689; Special Conditions No. 25-645-SC]


Special Conditions: Lufthansa Technik AG; Boeing Model 747-8 
Series Airplanes, Large Non-Structural Glass in the Passenger 
Compartment

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final special conditions.

-----------------------------------------------------------------------

SUMMARY: These special conditions are issued for the Boeing Model 747-8 
airplane. This airplane, as modified by Lufthansa Technik AG 
(Lufthansa), will have a novel or unusual design feature when compared 
to the state of technology envisioned in the airworthiness standards 
for transport-category airplanes. This design feature is the 
installation of large, non-structural glass panels in the cabin area of 
an executive interior occupied by passengers and crew. The applicable 
airworthiness regulations do not contain adequate or appropriate safety 
standards for this design feature. These special conditions contain the 
additional safety standards that the Administrator considers necessary 
to establish a level of safety equivalent to that established by the 
existing airworthiness standards.

DATES: Effective April 17, 2017.

FOR FURTHER INFORMATION CONTACT: Jayson Claar, FAA, Airframe and Cabin 
Safety, ANM-115, Transport Airplane Directorate, Aircraft Certification 
Service, 1601 Lind Avenue SW., Renton, Washington 98057-3356; telephone 
425-227-2194; facsimile 425-227-1320.

SUPPLEMENTARY INFORMATION: 

Background

    On March 8, 2012, Lufthansa Technik AG applied for a supplemental 
type certificate for large, non-structural glass panels in the 
passenger compartment in a Boeing Model 747-8 airplane. The Model 747-8 
airplane is a derivative of the Boeing Model 747-400 airplane approved 
under type certificate no. A20WE. The airplane, as modified by 
Lufthansa Technik AG, is a four-engine, transport-category airplane 
that will have a maximum takeoff weight of 970,000 lbs, capacity for 24 
crewmembers, and seating for 143 passengers.

Type Certification Basis

    The certification basis for the Boeing Model 747-8 airplane, as 
defined in

[[Page 14129]]

type certificate no. A20WE, is Title 14, Code of Federal Regulations 
(14 CFR) part 25 as amended by amendments 25-1 through 25-120, with 
exceptions for structures and systems that were unchanged from the 747-
400 design.
    Under the provisions of Sec.  21.101, Lufthansa Technik AG must 
show that the Model 747-8 airplane, as changed, continues to meet the 
applicable provisions of the regulations listed in type certificate no. 
A20WE, or the applicable regulations in effect on the date of 
application for the change.
    The certification basis includes certain special conditions, 
exemptions, or later amended sections of the applicable part that are 
not relevant to these special conditions.
    If the Administrator finds that the applicable airworthiness 
regulations (i.e., 14 CFR part 25) do not contain adequate or 
appropriate safety standards for the Boeing Model 747-8 airplane 
because of a novel or unusual design feature, special conditions are 
prescribed under the provisions of Sec.  21.16.
    Special conditions are initially applicable to the model for which 
they are issued. Should the applicant apply for a supplemental type 
certificate to modify any other model included on the same type 
certificate to incorporate the same novel or unusual design feature, 
these special conditions would also apply to the other model under 
Sec.  21.101.
    In addition to the applicable airworthiness regulations and special 
conditions, the Model 747-8 airplane must comply with the fuel-vent and 
exhaust-emission requirements of 14 CFR part 34 and the noise-
certification requirements of 14 CFR part 36.
    The FAA issues special conditions, as defined in 14 CFR 11.19, in 
accordance with Sec.  11.38, and they become part of the type 
certification basis under Sec.  21.101.

Novel or Unusual Design Features

    Lufthansa Technik AG is modifying a Boeing Model 747-8 airplane to 
install an executive interior. This airplane, as modified, will have a 
novel or unusual design feature that is the installation of large, non-
structural glass panels in the cabin area of an executive interior 
occupied by passengers and crew. The installation of these glass items 
in the passenger compartment, which can be occupied during taxi, 
takeoff, and landing, is a novel or unusual design feature with respect 
to the material being installed. The applicable airworthiness 
regulations do not contain adequate or appropriate safety standards for 
this design feature.

Discussion

    No specific regulations address the design and installation of 
large glass components in airplane passenger cabins. Existing 
requirements, such as Sec. Sec.  25.561, 25.562, 25.601, 25.603, 
25.613, 25.775, and 25.789, in the Boeing Model 747-8 airplane 
certification basis applicable to this supplemental type certificate 
project, provide some design standards appropriate for large glass 
component installations. However, additional design standards for non-
structural glass augmenting the existing design are needed to 
complement the existing requirements. The addition of glass involved in 
this installation, and the potentially unsafe conditions caused by 
damage to such components from external sources, necessitate assuring 
that adequate safety standards are applied to the design and 
installation of the feature in Boeing Model 747-8 airplanes.
    For purposes of these special conditions, a large glass component 
is defined as a glass component weighing 4 kg (9 lbs) or more. 
Groupings of glass items that individually weigh less than 4 kg, but 
collectively weigh 4 kg or more, also would need to be included. These 
special conditions also apply when showing compliance with the 
applicable performance standards in the regulations for the 
installation of these components. For example, heat-release and smoke-
density testing must not result in fragmentation of the component.
    The use of glass has resulted in trade-offs between the one unique 
characteristic of glass--its capability for undistorted or controlled 
light transmittance, or transparency--and the negative aspects of the 
material, such as extreme notch-sensitivity, low fracture resistance, 
low modulus of elasticity, and highly variable properties. While 
reasonably strong, glass is nonetheless not a desirable material for 
traditional airplane applications because it is heavy (about the same 
density as aluminum), and when it fails, it breaks into extremely sharp 
fragments that have the potential for injury and have been known to be 
lethal. Thus the use of glass traditionally has been limited to 
windshields, and instrument and display transparencies. The regulations 
for certification of transport-category airplanes only address, thus 
only recognize, the use of glass in windshield or window applications. 
These regulations do address the adverse properties of glass, but even 
so, pilots are occasionally injured from shattered glass windshields. 
FAA policy allows glass on instruments and display transparencies.
    Other installations of large, non-structural glass items have 
included the following:
     Glass panels integrated onto a stairway handrail closeout.
     Glass panels mounted in doors to allow visibility through 
the door when desired.
     Glass doors on some galley compartments containing small 
amounts of service items.
    These special conditions will reduce the hazards from breakage, or 
from these panels' potential separation from the cabin interior.
    These special conditions contain the additional safety standards 
that the Administrator considers necessary to establish a level of 
safety equivalent to that established by the existing airworthiness 
standards.

Discussion of Comments

    Notice of Proposed Special Conditions no. 25-16-03-SC for Lufthansa 
modifications to the Boeing Model 747-8 airplane was published in the 
Federal Register on February 25, 2016 (81 FR 9363). One comment was 
received.
    By letter no. B-H020-REG-16-TLM-17 dated March 24, 2016, on behalf 
of The Boeing Company (Boeing), Capt. Terry L. McVenes, Director, 
System Safety & Regulatory Affairs, wrote that Boeing provides a

. . . comprehensive set of comments that identify areas of the 
proposed text where changes would be beneficial for better clarity 
and accuracy. [Boeing] consider[s] such clarifications important to 
ensure consistent and standardized interpretation and application of 
the requirements and guidance provided in the document.

    Boeing recommends that proposed special condition no. 1, Material, 
and proposed special condition no. 2, Fragmentation, be revised to 
more-clearly define what each of these special conditions require, and 
how these two requirements are different. We agree that those two 
conditions could be addressed with a single test, so we combined those 
two conditions into a single condition, special condition no. 1, in 
this document, for clarity. The subsequent special conditions have been 
renumbered accordingly.
    Boeing commented that the load conditions in special condition no. 
4, in Notice no. 25-16-03-SC, which corresponds to special condition 
no. 3 in this document, should include all flight and landing loads, 
rather than only emergency landing. These special conditions are in 
addition to the load requirements in the certification basis

[[Page 14130]]

for the glass installation, rather than in lieu of the load 
requirements. Thus, it is not necessary to repeat that all of these 
loads apply to this installation. The emergency-landing load condition 
is not normally applied to installations of this type, but for the use 
of large glass in the cabin, we determined that this additional safety 
standard is necessary. We made no changes to special condition number 3 
in response to the Boeing comments.
    Boeing recommends that the loading conditions in proposed special 
condition no. 3 (which is now special condition no. 2), Strength, and 
proposed special condition no. 4 (which is now special condition no. 
3), Retention, be the same. Proposed special condition no. 3 (which is 
now special condition no. 2), Strength, is required to address the 
unique, extremely notch-sensitive characteristics of the glass as 
having low fracture resistance, low modulus of elasticity, and highly 
variable properties. Special condition no. 3 (which is now special 
condition no. 2) specifically accounts for abuse loads in addition to 
the loads required per subparts C & D of 14 CFR part 25. Special 
condition no. 4 (which is now special condition no. 3) accounts for 
loads encountered during directional loading and rebound resulting from 
emergency landing loads of 14 CFR part 25. We have made minor 
grammatical modifications to the requirements.
    Boeing recommends that, for proposed special condition no. 4 (which 
is now special condition no. 3), Retention, the statement, ``Both the 
directional loading and rebound conditions must be assessed,'' be 
removed, because these both are covered in proposed special condition 
no. 3. As explained above, special condition nos. 3 (which is now 
special condition no. 2) and 4 (which is now special condition no. 3) 
account for different loading conditions. We have made minor 
grammatical modifications to the requirements.

Applicability

    As discussed above, these special conditions are applicable to 
Boeing Model 747-8 series airplanes as modified by Lufthansa. Should 
Lufthansa apply at a later date for a supplemental type certificate to 
modify any other model included on type certificate no. A20WE to 
incorporate the same novel or unusual design feature, these special 
conditions would apply to that model as well.

Conclusion

    This action affects only a certain novel or unusual design feature 
on one model series of airplane. It is not a rule of general 
applicability and affects only the applicant who applied to the FAA for 
approval of this feature on the airplane.

List of Subjects in 14 CFR Part 25

    Aircraft, Aviation safety, Reporting and recordkeeping 
requirements.
    The authority citation for these special conditions is as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704.

The Special Conditions

    Accordingly, pursuant to the authority delegated to me by the 
Administrator, the following special conditions are issued, for large 
glass components installed in a cabin occupied by passengers or crew 
who are not otherwise protected from the injurious effects of failure 
of the glass installations, as part of the type certification basis for 
Boeing 747-8 airplanes modified by Lufthansa Technik AG.
    1. Material Fragmentation--The applicant must use tempered or 
otherwise treated glass to ensure that, when fractured, the glass 
breaks into small pieces with relatively dull edges. The glass 
component installation must retain all glass fragments to minimize the 
danger from flying glass shards or pieces. The applicant must 
demonstrate this characteristic by impact and puncture testing, and 
testing to failure. The applicant may conduct this test with or without 
any glass coating that may be utilized in the design.
    2. Strength--In addition to meeting the load requirements for all 
flight and landing loads, including any of the applicable emergency-
landing conditions in subparts C & D of 14 CFR part 25, the glass 
components that are located such that they are not protected from 
contact with cabin occupants must not fail due to abusive loading, such 
as impact from occupants stumbling into, leaning against, sitting on, 
or performing other intentional or unintentional forceful contact with 
the glass component. The applicant must assess the effect of design 
details such as geometric discontinuities or surface finish, including 
but not limited to embossing and etching.
    3. Retention--The glass component, as installed in the airplane, 
must not come free of its restraint or mounting system in the event of 
an emergency landing, considering both the directional loading and 
resulting rebound conditions. The applicant must assess the effect of 
design details such as geometric discontinuities or surface finish, 
including but not limited to embossing and etching.
    4. Instructions for Continued Airworthiness: The instructions for 
continued airworthiness must reflect the method used to fasten the 
panel to the cabin interior and must ensure the reliability of the 
methods used (e.g., life limit of adhesives, or clamp connection). The 
applicant must define any inspection methods and intervals based upon 
adhesion data from the manufacturer of the adhesive, or upon actual 
adhesion-test data, if necessary.

    Issued in Renton, Washington, on February 10, 2017.
Michael Kaszycki,
Assistant Manager, Transport Airplane Directorate, Aircraft 
Certification Service.
[FR Doc. 2017-05331 Filed 3-16-17; 8:45 am]
 BILLING CODE 4910-13-P

14128 Federal Register / Vol. 82, No. 51 / Friday, March 17, 2017 / Rules and Regulations

flight-control laws reduce feedback from conditions are issued as part of the type DEPARTMENT OF TRANSPORTATION
the pitching moment. Low-speed certification basis for Bombardier Inc.
excursions may become more hazardous Model BD–700–2A12 and BD–700– Federal Aviation Administration
without the typical longitudinal 2A13 series airplanes.
stability, and recovery may become 14 CFR Part 25
In lieu of the requirements of
more difficult when the low-speed [Docket No. FAA–2015–7689; Special
§§ 25.171, 25.173, 25.175 and 25.177(c),
situation is associated with a low Conditions No. 25–645–SC]
altitude, and with the engines at low the following special conditions apply:
thrust or in performance-limiting 1. The airplane must be shown to Special Conditions: Lufthansa Technik
conditions. have suitable static lateral, directional, AG; Boeing Model 747–8 Series
These special conditions contain the and longitudinal stability in any Airplanes, Large Non-Structural Glass
additional safety standards that the condition normally encountered in in the Passenger Compartment
Administrator considers necessary to service, including from the effects of
establish a level of safety equivalent to AGENCY: Federal Aviation
atmospheric disturbance. The showing Administration (FAA), DOT.
that established by the existing of suitable static lateral, directional, and
airworthiness standards. ACTION: Final special conditions.
longitudinal stability must be based on
Applicability the airplane handling qualities, SUMMARY: These special conditions are
including pilot workload and pilot issued for the Boeing Model 747–8
As discussed above, these special
conditions are applicable to Bombardier compensation, for specific test airplane. This airplane, as modified by
Model BD–700–2A12 and BD–700– procedures during the flight-test Lufthansa Technik AG (Lufthansa), will
2A13 series airplanes. Should evaluations. have a novel or unusual design feature
Bombardier apply at a later date for a 2. The airplane must provide to the when compared to the state of
change to the type certificate to include pilot adequate awareness of a low- technology envisioned in the
another model incorporating the same airworthiness standards for transport-
energy (low speed, low thrust, low
novel or unusual design feature, these category airplanes. This design feature
height) state when fitted with flight-
special conditions would apply to that is the installation of large, non-
control laws presenting neutral structural glass panels in the cabin area
model as well. longitudinal stability significantly of an executive interior occupied by
Conclusion below the normal operating speeds. passengers and crew. The applicable
‘‘Adequate awareness’’ means warning airworthiness regulations do not contain
This action affects only a certain
information that alerts the flightcrew of adequate or appropriate safety standards
novel or unusual design feature on
unsafe operating conditions, allowing for this design feature. These special
Bombardier Model BD–700–2A12 and
BD–700–2A13 series airplanes. It is not the flightcrew to take appropriate conditions contain the additional safety
a rule of general applicability. corrective action. standards that the Administrator
The substance of these special 3. The following requirement must be considers necessary to establish a level
conditions has been subjected to the met for the configurations and speed of safety equivalent to that established
notice and comment period in several specified in paragraph (a) of § 25.177. In by the existing airworthiness standards.
prior instances and has been derived straight, steady sideslips over the range DATES: Effective April 17, 2017.
without substantive change from those of sideslip angles appropriate to the FOR FURTHER INFORMATION CONTACT:
previously issued. It is unlikely that operation of the airplane, the rudder- Jayson Claar, FAA, Airframe and Cabin
prior public comment would result in a control movements and forces must be Safety, ANM–115, Transport Airplane
significant change from the substance substantially proportional to the angle Directorate, Aircraft Certification
contained herein. Therefore, because a of sideslip in a stable sense. This factor Service, 1601 Lind Avenue SW.,
delay would significantly affect the of proportionality must lie between Renton, Washington 98057–3356;
certification of the airplane, the FAA limits found necessary for safe telephone 425–227–2194; facsimile
has determined that prior public notice operation. The range of sideslip angles 425–227–1320.
and comment are unnecessary and SUPPLEMENTARY INFORMATION:
evaluated must include those sideslip
impracticable, and good cause exists for
angles resulting from the lesser of: Background
adopting these special conditions upon
publication in the Federal Register. a. One-half of the available rudder- On March 8, 2012, Lufthansa Technik
The FAA is requesting comments to control input; and AG applied for a supplemental type
allow interested persons to submit b. A rudder-control force of 180 certificate for large, non-structural glass
views that may not have been submitted pounds. panels in the passenger compartment in
in response to the prior opportunities a Boeing Model 747–8 airplane. The
for comment described above. Issued in Renton, Washington, on February Model 747–8 airplane is a derivative of
10, 2017. the Boeing Model 747–400 airplane
List of Subjects in 14 CFR Part 25 Michael Kaszycki, approved under type certificate no.
Aircraft, Aviation safety, Reporting Assistant Manager, Transport Airplane A20WE. The airplane, as modified by
and recordkeeping requirements. Directorate, Aircraft Certification Service. Lufthansa Technik AG, is a four-engine,
The authority citation for these [FR Doc. 2017–05327 Filed 3–16–17; 8:45 am] transport-category airplane that will
special conditions is as follows: BILLING CODE 4910–13–P have a maximum takeoff weight of
mstockstill on DSK3G9T082PROD with RULES

Authority: 49 U.S.C. 106(g), 40113, 44701, 970,000 lbs, capacity for 24
44702, 44704. crewmembers, and seating for 143
passengers.
The Special Conditions
Accordingly, pursuant to the Type Certification Basis
authority delegated to me by the The certification basis for the Boeing
Administrator, the following special Model 747–8 airplane, as defined in

VerDate Sep<11>2014 19:31 Mar 16, 2017 Jkt 241001 PO 00000 Frm 00018 Fmt 4700 Sfmt 4700 E:\FR\FM\17MRR1.SGM 17MRR1

Federal Register / Vol. 82, No. 51 / Friday, March 17, 2017 / Rules and Regulations 14129

type certificate no. A20WE, is Title 14, Discussion glass on instruments and display
Code of Federal Regulations (14 CFR) No specific regulations address the transparencies.
part 25 as amended by amendments 25– design and installation of large glass Other installations of large, non-
1 through 25–120, with exceptions for components in airplane passenger structural glass items have included the
structures and systems that were cabins. Existing requirements, such as following:
unchanged from the 747–400 design. • Glass panels integrated onto a
§§ 25.561, 25.562, 25.601, 25.603,
Under the provisions of § 21.101, stairway handrail closeout.
25.613, 25.775, and 25.789, in the
Lufthansa Technik AG must show that • Glass panels mounted in doors to
Boeing Model 747–8 airplane
the Model 747–8 airplane, as changed, allow visibility through the door when
certification basis applicable to this
continues to meet the applicable desired.
supplemental type certificate project, • Glass doors on some galley
provisions of the regulations listed in provide some design standards
type certificate no. A20WE, or the compartments containing small
appropriate for large glass component amounts of service items.
applicable regulations in effect on the installations. However, additional
date of application for the change. These special conditions will reduce
design standards for non-structural glass the hazards from breakage, or from these
The certification basis includes augmenting the existing design are panels’ potential separation from the
certain special conditions, exemptions, needed to complement the existing cabin interior.
or later amended sections of the requirements. The addition of glass These special conditions contain the
applicable part that are not relevant to involved in this installation, and the additional safety standards that the
these special conditions. potentially unsafe conditions caused by Administrator considers necessary to
If the Administrator finds that the damage to such components from establish a level of safety equivalent to
applicable airworthiness regulations external sources, necessitate assuring that established by the existing
(i.e., 14 CFR part 25) do not contain that adequate safety standards are airworthiness standards.
adequate or appropriate safety standards applied to the design and installation of
for the Boeing Model 747–8 airplane the feature in Boeing Model 747–8 Discussion of Comments
because of a novel or unusual design airplanes. Notice of Proposed Special
feature, special conditions are For purposes of these special Conditions no. 25–16–03–SC for
prescribed under the provisions of conditions, a large glass component is Lufthansa modifications to the Boeing
§ 21.16. defined as a glass component weighing Model 747–8 airplane was published in
Special conditions are initially 4 kg (9 lbs) or more. Groupings of glass the Federal Register on February 25,
applicable to the model for which they items that individually weigh less than 2016 (81 FR 9363). One comment was
are issued. Should the applicant apply 4 kg, but collectively weigh 4 kg or received.
for a supplemental type certificate to more, also would need to be included. By letter no. B–H020–REG–16–TLM–
modify any other model included on the These special conditions also apply 17 dated March 24, 2016, on behalf of
same type certificate to incorporate the when showing compliance with the The Boeing Company (Boeing), Capt.
same novel or unusual design feature, applicable performance standards in the Terry L. McVenes, Director, System
these special conditions would also regulations for the installation of these Safety & Regulatory Affairs, wrote that
apply to the other model under § 21.101. components. For example, heat-release Boeing provides a
In addition to the applicable and smoke-density testing must not . . . comprehensive set of comments that
airworthiness regulations and special result in fragmentation of the identify areas of the proposed text where
conditions, the Model 747–8 airplane component. changes would be beneficial for better clarity
must comply with the fuel-vent and The use of glass has resulted in trade- and accuracy. [Boeing] consider[s] such
exhaust-emission requirements of 14 offs between the one unique clarifications important to ensure consistent
CFR part 34 and the noise-certification characteristic of glass—its capability for and standardized interpretation and
requirements of 14 CFR part 36. undistorted or controlled light application of the requirements and guidance
The FAA issues special conditions, as transmittance, or transparency—and the provided in the document.
defined in 14 CFR 11.19, in accordance negative aspects of the material, such as Boeing recommends that proposed
with § 11.38, and they become part of extreme notch-sensitivity, low fracture special condition no. 1, Material, and
the type certification basis under resistance, low modulus of elasticity, proposed special condition no. 2,
§ 21.101. and highly variable properties. While Fragmentation, be revised to more-
reasonably strong, glass is nonetheless clearly define what each of these special
Novel or Unusual Design Features not a desirable material for traditional conditions require, and how these two
Lufthansa Technik AG is modifying a airplane applications because it is heavy requirements are different. We agree
Boeing Model 747–8 airplane to install (about the same density as aluminum), that those two conditions could be
an executive interior. This airplane, as and when it fails, it breaks into addressed with a single test, so we
modified, will have a novel or unusual extremely sharp fragments that have the combined those two conditions into a
design feature that is the installation of potential for injury and have been single condition, special condition no.
large, non-structural glass panels in the known to be lethal. Thus the use of glass 1, in this document, for clarity. The
cabin area of an executive interior traditionally has been limited to subsequent special conditions have
occupied by passengers and crew. The windshields, and instrument and been renumbered accordingly.
installation of these glass items in the display transparencies. The regulations Boeing commented that the load
passenger compartment, which can be for certification of transport-category conditions in special condition no. 4, in
mstockstill on DSK3G9T082PROD with RULES

occupied during taxi, takeoff, and airplanes only address, thus only Notice no. 25–16–03–SC, which
landing, is a novel or unusual design recognize, the use of glass in windshield corresponds to special condition no. 3
feature with respect to the material or window applications. These in this document, should include all
being installed. The applicable regulations do address the adverse flight and landing loads, rather than
airworthiness regulations do not contain properties of glass, but even so, pilots only emergency landing. These special
adequate or appropriate safety standards are occasionally injured from shattered conditions are in addition to the load
for this design feature. glass windshields. FAA policy allows requirements in the certification basis

VerDate Sep<11>2014 19:31 Mar 16, 2017 Jkt 241001 PO 00000 Frm 00019 Fmt 4700 Sfmt 4700 E:\FR\FM\17MRR1.SGM 17MRR1

Document Created: 2017-03-17 02:49:04
Document Modified: 2017-03-17 02:49:04

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		Rules and Regulations
Action		Final special conditions.
Dates		Effective April 17, 2017.
Contact		Jayson Claar, FAA, Airframe and Cabin Safety, ANM-115, Transport Airplane Directorate, Aircraft Certification Service, 1601 Lind Avenue SW., Renton, Washington 98057-3356; telephone 425-227-2194; facsimile 425-227-1320.
FR Citation		82 FR 14128
CFR Associated		Aircraft; Aviation Safety and Reporting and Recordkeeping Requirements

82 FR 14128 - Special Conditions: Lufthansa Technik AG; Boeing Model 747-8 Series Airplanes, Large Non-Structural Glass in the Passenger Compartment

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 82, Issue 51 (March 17, 2017)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration