Federal Register Proposed Rules, Rules and Notices for July 16,2013

July 16,2013


Harmonization of Airworthiness Standards-Gust and Maneuver Load
Requirements [FR DOC# C2-2013-12445]


Airport Improvement Program (AIP): Policy Regarding Access to Airports From
Residential Property [FR DOC# 2013-16917] SUMMARY: This action adopts a
Policy Statement, based on Federal law, concerning through-the-fence access
to a federally-obligated airport from an adjacent or nearby property, when
that property is used as a residence. This Policy Statement replaces FAA’s
previously published Interim Policy (76 FR 15028; March 18, 2011) with
regard to commercial service airports, and establishes how FAA will
implement section 136 of Public Law 112-95.

Airworthiness Directives; Eurocopter France Helicopters [FR DOC# 2013-
16682] SUMMARY: We are publishing a new airworthiness directive (AD) for
Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C,
AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP
helicopters. This AD requires, before further flight, determining whether a
single hydraulic main or tail rotor servo-control is installed on your
helicopter. If a certain servo-control is installed, before the further
flight, this AD requires replacing that servo-control. This AD was prompted
by the discovery of excessive axial play detected on bearings installed on
certain single hydraulic main and tail rotor servo-controls (servo-
control). The excessive play could cause the distributor slide valve to jam
in its sleeve. This condition could result in jamming the hydraulic flight
controls, necessitating that the pilot cut off hydraulic power. This action
would increase the pilot’s workload, resulting in possible loss of
helicopter control.

Airworthiness Directives; Eurocopter Deutschland GmbH Helicopters [FR DOC#
2013-14848] SUMMARY: We are adopting a new airworthiness directive (AD) for
Eurocopter Deutschland GmbH (Eurocopter) Model MBB-BK 117 C-2 helicopters.
This AD requires determining if a certain serial-numbered bevel gear is
installed in the tailrotor intermediate gear box (IGB). If such a bevel
gear is installed in the IGB, this AD requires recording the bevel gear’s
reduced life limit in the Airworthiness Limitations section of the
maintenance manual and on the component history card or equivalent IGB
record. If the bevel gear’s life limit has been reached or exceeded, this
AD requires, before further flight, replacing the bevel gear with an
airworthy bevel gear. This AD is prompted by the discovery that the tooth
foot fillets in certain bevel gears fall below the minimum dimensions
required in the design documents to ensure safe functioning of the bevel
gear until it reaches its approved life limit. This AD’s actions are
intended to prevent failure of a bevel gear before it reaches its currently
approved life limit, failure of the IGB, and subsequent loss of helicopter

Airworthiness Directives; The Boeing Company Airplanes [FR DOC# 2013-15526]
SUMMARY: We are superseding an existing airworthiness directive (AD) for
certain The Boeing Company Model 767 airplanes. That AD currently requires
sealing certain fasteners and stiffeners in the fuel tank, changing certain
wire bundle clamp configurations on the fuel tank walls, inspecting certain
fasteners in the fuel tanks and determining the method of attachment of the
vortex generators; and performing corrective actions if necessary. This new
AD adds a general visual inspection for the presence of a
polytetrafluoroethylene (TFE) sleeve at the clamp location on the rear
spar, and installation of a TFE sleeve if necessary. This new AD also adds
airplanes to the applicability. This AD was prompted by fuel system reviews
conducted by the manufacturer, and the identification of another possible
ignition source location. We are issuing this AD to prevent possible
ignition sources in the auxiliary (center) fuel tank, main fuel tanks, and
surge tanks caused by a wiring short or lightning strike, which could
result in fuel tank explosions and consequent loss of the airplane.

Airworthiness Directives; the Boeing Company Airplanes [FR DOC# 2013-15963]
SUMMARY: We are superseding airworthiness directive (AD) 87-02-07, which
applied to all The Boeing Company Model 737-100 and -200 series airplanes.
AD 87-02-07 required replacement of certain underwing fuel tank access
covers with stronger, fire-resistant covers. This new AD also requires
inspecting fuel tank access doors to determine that impact-resistant access
doors are installed in the correct locations, inspecting application of
stencils and index markers of impact- resistant access doors, doing
corrective actions if necessary, revising the maintenance program, and
adding airplanes to the applicability. This AD was prompted by reports of
standard access doors installed where impact-resistant access doors are
required, and reports of impact-resistant doors without stencils. We are
issuing this AD to prevent foreign object penetration of the wing tank,
which could lead to a fuel leak near ignition sources (engine, hot brakes),
consequently leading to a fuel-fed fire.

Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes [FR DOC# 2013-
16332] SUMMARY: We are adopting a new airworthiness directive (AD) for
certain Pilatus Aircraft Ltd. Model PC-6/B2-H4 airplanes. This AD results
from 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 faulty rivets installed in the airframes during production could reduce
the structural integrity of the airplane. We are issuing this AD to require
actions to address the unsafe condition on these products.


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