AD 2010-03-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lifesavings Systems Corp | D-Lok Hook Assembly | Airworthiness Directives; Lifesavings Systems Corp., D-Lok Hook Assembly |
| appliance | Lifesavings Systems Corp | D-Lok Hook Assembly | Airworthiness Directives; Lifesavings Systems Corp., D-Lok Hook Assembly |
Unsafe Condition
D-Lok Hook assemblies, part numbers 410-A and 410-F, manufactured using cast material instead of forged material, have surface irregularities and discontinuities that exceed acceptable limits, leading to potential failure during rescue hoist operations.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace each affected D-Lok Hook assembly with an airworthy hook assembly other than D-Lok Hook assembly, part numbers 410-A or 410-F, lot numbers 208 or 1108, within 200 hoist lifts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 200 hoist lifts
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Helicopters with a Lifesavings Systems Corp. D-Lok Hook Assembly, part numbers 410-A or 410-F, lot numbers 208 or 1108, installed.
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 the Lifesavings Systems Corp., D-Lok Hook assembly installed on certain rescue hoist assemblies. This AD results from a mandatory continuing airworthiness information (MCAI) AD issued by the European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community. The MCAI AD states that rescue hoist operators have reported surface irregularities and discontinuities on certain D-Lok Hooks because of an unapproved change in the hook design and manufacturing process from forged material to cast material that have different physical properties. The actions are intended to prevent failure of a hook during rescue hoist operations, loss of the rescued passenger, and subsequent serious injury or fatality.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 75, Number 17 (Wednesday, January 27, 2010)]
[Rules and Regulations]
[Pages 4265-4267]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2010-1518]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-1148; Directorate Identifier 2009-SW-36-AD;
Amendment 39-16185; AD 2010-03-02]
RIN 2120-AA64
Airworthiness Directives; Lifesavings Systems Corp., D-Lok Hook
Assembly
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for comments.
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SUMMARY: We are adopting a new airworthiness directive (AD) for the
Lifesavings Systems Corp., D-Lok Hook assembly installed on certain
rescue hoist assemblies. This AD results from a mandatory continuing
airworthiness information (MCAI) AD issued by the European Aviation
Safety Agency (EASA), which is the Technical Agent for the Member
States of the European Community. The MCAI AD states that rescue hoist
operators have reported surface irregularities and discontinuities on
certain D-Lok Hooks because of an unapproved change in the hook design
and manufacturing process from forged material to cast material that
have different physical properties. The
[[Page 4266]]
actions are intended to prevent failure of a hook during rescue hoist
operations, loss of the rescued passenger, and subsequent serious
injury or fatality.
DATES: This AD becomes effective on February 11, 2010.
We must receive comments on this AD by March 29, 2010.
ADDRESSES: You may send comments by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://www.regulations.gov">http://www.regulations.gov</a>. Follow the instructions for submitting your
comments electronically.
<bullet> Fax: (202) 493-2251.
<bullet> 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.
<bullet> Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
You may get the service information identified in this AD from
Goodrich Corporation, Sensors and Integrated Systems, 1550 S. Valley
Vista Dr., Diamond Bar, California 91765, telephone 1-909-569-0210, fax
1-909-569-0387; and from Breeze-Eastern Corporation, 700 Liberty
Avenue, Union, NJ 07083-8198, telephone 1-908-686-4000, Ext. 3897 or
3890 or 1-800-929-1919 (toll free United States and Canada only), fax
1-908-688-6495, e-mail <a href="/cdn-cgi/l/email-protection#f695838582999b9384859384809f9593b6948493938c93dbca97d69e849390cb" http: eastern.com">eastern.com</a>">customerservice@breeze-<a href="http://eastern.com">eastern.com</a></a>.
Examining the Docket: You may examine the AD docket on the Internet
at <a href="http://www.regulations.gov">http://www.regulations.gov</a> or in person at the Docket Operations
office between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this AD, the economic evaluation, any
comments received, and other information. The street address for the
Docket Operations office (telephone (800) 647-5527) is stated in the
ADDRESSES section of this AD. Comments will be available in the AD
docket shortly after receipt.
FOR FURTHER INFORMATION CONTACT: DOT/FAA Southwest Region, Gary Roach,
ASW-111, Aviation Safety Engineer, Rotorcraft Directorate, Regulations
and Guidance Group, 2601 Meacham Blvd, Fort Worth, Texas 76137,
telephone (817) 222-5130, fax (817) 222-5961.
SUPPLEMENTARY INFORMATION:
Discussion
EASA, which is the Technical Agent for the Member States of the
European Community, has issued EASA AD No. 2009-0183-E, dated August
14, 2009, which is the latest of 4 MCAI ADs that have been issued, to
correct an unsafe condition for certain helicopters with certain D-Lok
Hook assemblies installed on Goodrich and Breeze-Eastern rescue hoists.
The MCAI AD states that rescue hoist operators have reported surface
irregularities and discontinuities on certain D-Lok Hooks because of an
unapproved change in the hook design and manufacturing process from
forged material to cast material that have different physical
properties. The actions are intended to prevent failure of a hook
during rescue hoist operations, loss of the rescued passenger, and
subsequent serious injury or fatality.
You may obtain further information by examining the MCAI AD and any
related service information in the AD docket.
Related Service Information
Goodrich has issued Service Bulletin (SB) 42315-489-01, Revision 1,
dated June 5, 2009, and Breeze-Eastern Corporation has issued SB BLH-
20200-504-25-01, dated June 12, 2009. These SBs were issued following
the discovery of surface irregularities and discontinuities on D-Lok
Hooks assemblies, part number (P/N) 410-A and 410-F, manufactured by
Lifesaving Systems Corp., which are used on Goodrich and Breeze-Eastern
rescue hoist assemblies. The SBs specify inspecting and removing all D-
Lok hooks that have surface irregularities and discontinuities that
exceed specified acceptable limits.
The actions described in the MCAI AD are intended to correct the
same unsafe condition as that identified in the service information.
FAA's Evaluation and Unsafe Condition Determination
Agusta S.p.A. Model A109 series and AB139/AW139; Eurocopter Model
AS332, AS350, AS355, SA-365, AS-365, EC 155 series, EC225LP; Eurocopter
Deutschland GmbH Model EC135 and MBB-BK 117; and Sikorsky Aircraft
Corporation S-61, S76, and S92 helicopters, all serial numbers; and
other helicopters may have a rescue hoist assembly installed with a
Lifesaving Systems Corp. D-Lok Hook Assembly with P/N 410-A or 410-F
and lot number 208 or 1108. These hook assemblies were manufactured
using a design and a manufacturing process using cast material instead
of forged material, which was not approved by the FAA. Without FAA
approval, these D-Lok hook assemblies, in addition to creating an
unsafe condition, are not eligible for use in aircraft operating in the
United States. Pursuant to our bilateral agreement with the member
countries of the European Community, EASA has notified us of the unsafe
condition described in the MCAI AD. We are issuing this AD because we
evaluated all information provided by EASA and determined the unsafe
condition exists and is likely to exist or develop on other products of
these same type designs.
This AD requires, within 200 hoist lifts, unless already done,
replacing each affected D-Lok Hook assembly with an airworthy hook
assembly other than D-Lok Hook assembly, P/N 410-A or 410-F, lot number
208 or 1108.
Differences Between This AD and the MCAI AD
The latest MCAI AD requires a visual inspection to determine
whether the affected hook assembly has surface irregularities and
discontinuities that exceed certain manufacturer limits. If it is
within limits, the MCAI AD requires replacing the D-Lok Hook within 30
days from July 11, 2009 or upon reaching 1000 lift cycles since
installation of the affected hook, whichever occurs first. This AD does
not require an inspection and requires replacing each affected D-Lok
Hook within 200 hoist lifts. Also, the MCAI AD is limited to Agusta,
Eurocopter, and Sikorsky helicopters, and this AD applies to all
helicopters with a Lifesavings Systems Corp. D-Lock Hook Assembly, P/N
410-A or 410-F, lot number 208 or 1108, installed.
Costs of Compliance
We estimate that this AD will affect about 91 helicopters of U.S.
registry. We also estimate that it will take about 1 work-hour per
helicopter to replace each affected D-Lok Hook with an airworthy hook.
The average labor rate is $80 per work-hour. Required parts will cost
about $3000 per hoist. Based on these figures, we estimate the cost of
this AD on U.S. operators will be $280,280, assuming all 91 helicopters
have the D-Lok Hook replaced.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD. We find that the risk to the flying public justifies waiving
notice and comment prior to adopting this rule because of reports that
the unapproved D-Lok Hooks have been found to have irregularities and
discontinuities and if used to carry rescued passengers could lead to
loss of the rescued passenger.
[[Page 4267]]
Testing shows that the affected hooks could fail at 200 lifts. At least
one operator involved in training exercises exceeds 200 lifts in a
month, which is a short period of time. Therefore, we have determined
that notice and opportunity for public comment before issuing this AD
are impracticable and that good cause exists for making this amendment
effective in fewer than 30 days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and we did not precede it by notice and opportunity for public
comment. However, we invite you to send us any written data, views, or
arguments concerning this AD. Send your comments to an address listed
under the ADDRESSES section of this AD. Include ``Docket No. FAA-2009-
1148; Directorate Identifier 2009-SW-36-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this AD. We will
consider all comments received by the closing date and may amend this
AD because of those comments.
We will post all comments we receive, without change, to <a href="http://www.regulations.gov">http://www.regulations.gov</a> including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this AD.
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 product(s) identified in this
rulemaking action.
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.
Therefore, 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); 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.
We prepared an economic evaluation of the estimated costs to comply
with this AD and placed it in the AD docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Safety.
Adoption of the Amendment
0
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 AD:
2010-03-02 Lifesaving Systems Corp.: Amendment 39-16185. Docket No.
FAA-2009-1148; Directorate Identifier 2009-SW-36-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective on
February 11, 2010.
Other Affected ADs
(b) None.
Applicability
(c) This AD applies to all helicopters, which have a rescue
hoist assembly installed that contains a Lifesaving Systems Corp. D-
Lok Hook assembly, part number (P/N) 410-A or 410-F, lot number 208
or 1108. These hooks are installed on but not limited to Goodrich
Rescue Hoist Assembly P/N 42325-16-4, 42325-16-5, 44301-10 series,
44315-10, 44307-480, 44307-481, 44316-12-101, 44316-10-101, 42325-12
series, 42325-14 series, 44311-10 series, 712768-240-D 76370-140-D
and 76378-260-D; and Breeze-Eastern Corporation Rescue Hoist
Assembly, P/N BLH-20200-504 series.
Reason
(d) The mandatory continuing airworthiness information (MCAI) AD
states that rescue hoist operators have reported surface
irregularities and discontinuities on certain D-Lok Hooks supplied
by Lifesaving Systems because of an unapproved change in the hook
design and manufacturing process from forged material to cast
material that have different physical properties. The actions are
intended to prevent failure of a hook during rescue hoist
operations, loss of the rescued passenger, and subsequent serious
injury or fatality.
Actions and Compliance
(e) Within 200 hoist lifts, unless already done, replace each
affected D-Lok Hook assembly with an airworthy hook assembly other
than D-Lok Hook assembly, P/N 410-A or 410-F, lot number 208 or
1108.
Differences Between This AD and the MCAI AD
(f) The latest MCAI AD requires a visual inspection to determine
whether the affected hook assembly has surface irregularities and
discontinuities that exceed certain manufacturer limits. If it is
within limits, the MCAI AD requires replacing the D-Lok Hook within
30 days from July 11, 2009, or upon reaching 1000 total lift cycles
since installation of the affected lock, whichever occurs first.
This AD does not require an inspection and requires replacing each
affected D-Lok Hook within 200 lift cycles. Also, the MCAI AD is
limited to Agusta, Eurocopter, and Sikorsky helicopters, and this AD
applies to all helicopters with a Lifesavings Systems Corp. D-Lock
Hook Assembly, P/N 410-A or 410-F, lot number 208 or 1108,
installed.
Other Information
(g) Alternative Methods of Compliance (AMOCs): The Manager,
Safety Management Group, ATTN: DOT/FAA Southwest Region, Gary Roach,
ASW-111, Aviation Safety Engineer, Rotorcraft Directorate,
Regulations and Guidance Group, 2601 Meacham Blvd, Fort Worth, Texas
76137, telephone (817) 222-5130, fax (817) 222-5961, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19.
Related Information
(h) EASA MCAI AD No. 2009-0124, dated June 12, 2009; 2009-0148-
E, dated July 9, 2009; 2009-0179-E, dated August 11, 2009; 2009-
0183-E, dated August 14, 2009; and Goodrich Service Bulletin (SB)
42315-489-01, Revision 1, dated June 5, 2009 and Breeze-Eastern
Corporation SB BLH-20200-504-25-01, dated June 12, 2009, contain
related information.
Joint Aircraft System/Component (JASC) Code
(i) JASC Code 2520: Passenger Compartment Equipment.
Dated: Issued in Fort Worth, Texas, on January 20, 2010.
Mark R. Schilling,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 2010-1518 Filed 1-26-10; 8:45 am]
BILLING CODE 4910-13-P
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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