[Federal Register: May 9, 2005 (Volume 70, Number 88)]
[Rules and Regulations]
[Page 24307-24309]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09my05-7]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-20291; Directorate Identifier 2004-SW-25-AD;
Amendment 39-14074; AD 2005-09-06]
RIN 2120-AA64
Airworthiness Directives; Agusta S.p.A. Model A119 Helicopters
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD) for
Agusta S.p.A. (Agusta) Model A119 helicopters that requires visually
inspecting each main transmission support fitting (fitting) attachment
bolt (bolt) for a fracture, a crack, or looseness, and verifying the
torque on each fitting bolt. This amendment is prompted by two
incidents of fatigue failure of the bolts that secure the transmission
rear support fittings to the helicopter. The actions specified by this
AD are intended to detect a fracture, a crack, or looseness of a
fitting bolt, and prevent fatigue failure of a fitting bolt and
subsequent loss of control of the helicopter.
DATES: Effective June 13, 2005.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of June 13, 2005.
ADDRESSES: You may get the service information identified in this AD
from Agusta, 21017 Cascina Costa di Samarate (VA) Italy, Via Giovanni
Agusta 520, telephone 39 (0331) 229111, fax 39 (0331) 229605-222595.
Examining the Docket: You may examine the docket that contains this
AD, any comments, and other information on the Internet at http://dms.dot.gov
, or at the Docket Management System (DMS), U.S. Department
of Transportation, 400 Seventh Street SW., Room PL-401, on the plaza
level of the Nassif Building, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Sharon Miles, Aviation Safety
Engineer, FAA, Rotorcraft Directorate, Regulations and Guidance Group,
Fort Worth, Texas 76193-0111, telephone (817) 222-5122, fax (817) 222-
5961.
SUPPLEMENTARY INFORMATION: A proposal to amend 14 CFR part 39 to
include an AD for Agusta Model A119 helicopters was published in the
Federal Register on February 10, 2005 (70 FR 7057). That action
proposed to require inspecting each fitting bolt, part number (P/N)
NAS625-14 and P/N NAS625-18, for a fracture, a crack, or looseness,
within 5 hours time-in-service (TIS) and then at intervals not to
exceed 10 hours TIS until accomplishing a torque inspection of each
fitting bolt. The torque inspection would have to be accomplished
before further flight if looseness is found, or within 25 hours TIS if
looseness is not found. If a fracture or a crack is found on any bolt
in a fitting, replacing all 4 of the bolts in the fitting would be
required. If looseness is detected on any fitting bolt, a torque
inspection would be required. If any torque inspection reveals that the
torque of any bolt in a fitting is not between 11.3-15.8 Nm (100-140
inch-pounds), all 4 of the bolts in the fitting would have to be
replaced with airworthy fitting bolts before further flight.
The Ente Nazionale per l'Aviazione Civile (ENAC), the airworthiness
authority for Italy, notified the FAA that an unsafe condition may
exist on Agusta Model A119 helicopters. ENAC advises
[[Page 24308]]
of the need to check the bolts that secure the transmission support
fittings to the structure by following the manufacturer's Bollettino
Tecnico 119-8, dated April 7, 2004.
Agusta has issued Bollettino Tecnico No. 119-8, dated April 7,
2004, which specifies a periodic visual inspection to verify the
condition (visible damage) of the airframe mounted main transmission
fittings attaching hardware, and successively checking the torque of
the bolts to exclude the possible presence of looseness and/or a
fracture or a crack. ENAC classified this bollettino tecnico as
mandatory and issued AD No. 2004-108, dated April 8, 2004, to ensure
the continued airworthiness of these helicopters in Italy.
This helicopter model is manufactured in Italy and is type
certificated for operation in the United States under the provisions of
14 CFR 21.29 and the applicable bilateral agreement. Pursuant to the
applicable bilateral agreement, ENAC has kept the FAA informed of the
situation described above. The FAA has examined the findings of ENAC,
reviewed all available information, and determined that AD action is
necessary for products of this type design that are certificated for
operation in the United States.
Interested persons have been afforded an opportunity to participate
in the making of this amendment. No comments were received on the
proposal or the FAA's determination of the cost to the public. The FAA
has determined that air safety and the public interest require the
adoption of the rule as proposed.
We estimate that this AD will affect 21 helicopters of U.S.
registry. The three inspections (one initial, one repetitive, and the
torque inspection) will take approximately 4 work hours to accomplish
at an average labor rate of $65 per work hour. (The manufacturer states
that it shall recognize a reimbursement of $120 per helicopter for the
labor.) Required parts will cost approximately $1,600 per helicopter
($100 per fitting bolt for 16 fitting bolts). Based on these figures,
we estimate the total cost impact of the AD on U.S. operators to be
$39,060, assuming that no warranty credit is available and that all
affected fitting bolts are replaced.
Regulatory Findings
We have 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 that the 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); 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. See the DMS to examine the economic evaluation.
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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration amends part 39 of
the Federal Aviation Regulations (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. Section 39.13 is amended by adding a new airworthiness directive to
read as follows:
2005-09-06 Agusta S.p.A.: Amendment 39-14074. Docket No. FAA-2005-
20291; Directorate Identifier 2004-SW-25-AD.
Applicability: Model A119 helicopters, serial numbers 14001
through 14037, except serial number 14036, certificated in any
category.
Compliance: Required as indicated, unless accomplished
previously. To detect a fracture, a crack, or looseness of a main
transmission support fitting (fitting) attachment bolt (bolt) and
prevent fatigue failure of a fitting bolt and subsequent loss of
control of the helicopter, accomplish the following:
(a) Within 5 hours time-in-service (TIS), and then at intervals
not to exceed 10 hours TIS until a torque inspection of each fitting
bolt is accomplished in accordance with paragraph (b) of this AD,
inspect each fitting bolt, part number NAS625-14 and NAS625-18, for
a fracture, a crack, or looseness, using a light and a mirror.
(1) On each of the 4 fittings, if a fracture or a crack is found
in any bolt, replace all 4 bolts in the fitting with airworthy
fitting bolts before further flight.
(2) If looseness is found in any bolt in any fitting, inspect
each of the 4 bolts on each of the 4 fittings (16 bolts total) to
determine if the torque is between 11.3-15.8 Nm (100-140 inch-
pounds). If the indicated torque is not within the acceptable range
on any bolt in a fitting, before further flight, remove all 4 bolts
in the fitting and replace them with airworthy fitting bolts in
accordance with Part II, steps 4.1 through 5., of Agusta Bollettino
Tecnico No. 119-8, dated April 7, 2004 (BT).
(b) Within 25 hours TIS, inspect each bolt in each fitting to
determine if the torque is between 11.3-15.8 Nm (100-140 inch-
pounds). If the indicated torque is not within the acceptable range
on any bolt, before further flight, remove all 4 bolts in the
fitting and replace them with airworthy fitting bolts in accordance
with Part II, steps 4.1 through 5., of the BT.
(c) Accomplishing the inspections specified in paragraphs (a)
and (b) constitute terminating actions for the requirements of this
AD.
(d) To request a different method of compliance or a different
compliance time for this AD, follow the procedures in 14 CFR 39.19.
Contact the Safety Management Group, Rotorcraft Directorate, FAA,
for information about previously approved alternative methods of
compliance.
(e) Special flight permits may be issued in accordance with 14
CFR 21.197 and 21.199 to operate the helicopter to a location where
the requirements of this AD can be accomplished, provided that no
fracture, crack, or looseness was found during the inspections
required by this AD.
(f) The inspections and replacements shall be done in accordance
with Agusta Bollettino Tecnico No. 119-8, dated April 7, 2004. The
Director of the Federal Register approved this incorporation by
reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.
Copies may be obtained from Agusta, 21017 Cascina Costa di Samarate
(VA) Italy, Via Giovanni Agusta 520, telephone 39 (0331) 229111, fax
39 (0331) 229605-222595. Copies may be inspected at the National
Archives and Records Administration (NARA). For information on the
availability of this
[[Page 24309]]
material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
.
(g) This amendment becomes effective on June 13, 2005.
Note: The subject of this AD is addressed in Ente Nazionale per
l'Aviazione Civile (Italy) AD No. 2004-108, dated April 8, 2004.
Issued in Fort Worth, Texas, on April 27, 2005.
Carl Mittag,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 05-8953 Filed 5-6-05; 8:45 am]
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