[Federal Register Volume 66, Number 124 (Wednesday, June 27, 2001)]
[Rules and Regulations]
[Pages 34108-34109]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 01-15793]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 99-SW-06-AD; Amendment 39-12282; AD 2001-13-02]
RIN 2120-AA64
Airworthiness Directives; Bell Helicopter Textron Canada Model
407 Helicopters
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD) for
Bell Helicopter Textron Canada (BHTC) Model 407 helicopters that
requires replacing certain cockpit warning horns. This amendment is
prompted by reports that pilots have had difficulty in distinguishing
between the FADEC Fail horn, the Engine Out horn, and the Low Rotor RPM
horn. The actions specified by this AD are intended to assist the pilot
in properly identifying a specific cockpit warning horn (horn) and
prevent an inappropriate pilot response to a horn, which could cause an
engine overspeed and subsequent uncommanded reduction to flight-idle
engine power.
DATES: Effective August 1, 2001.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of August 1, 2001.
ADDRESSES: The service information referenced in this AD may be
obtained from Bell Helicopter Textron Canada, 12,800 Rue de l'Avenir,
Mirabel, Quebec JON1LO, telephone (800) 363-8023, fax (450) 433-0272.
This information may be examined at the FAA, Office of the Regional
Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth,
Texas; or at the Office of the Federal Register, 800 North Capitol
Street, NW., suite 700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Sharon Miles, Aviation Safety
Engineer, FAA, Rotorcraft Directorate, Rotorcraft Regulations Group,
Fort Worth, Texas 76193, telephone (817) 222-5122, fax (817) 222-5961.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to include an airworthiness
directive (AD) for BHTC Model 407 helicopters was published in the
Federal Register on March 14, 2001 (66 FR 14865). That action proposed
to require replacing the FADEC Fail horn, the Engine Out horn, and the
Low Rotor RPM horn.
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.
The FAA estimates that 200 helicopters of U.S. registry will be
affected by this AD, that it will take approximately 2.5 work hours per
helicopter to replace the horns, and that the average labor rate is $60
per work hour. Required parts will cost approximately $154. Based on
these figures, the total cost impact of the proposed AD on U.S.
operators is estimated to be $60,800 to replace the horns in all the
fleet.
The regulations adopted herein 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, it
is determined that this final rule does not have federalism
implications under Executive Order 13132.
For the reasons discussed above, I certify that this action (1) is
not a ``significant regulatory action'' under Executive Order 12866;
(2) is not a ``significant rule'' under 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
[[Page 34109]]
Flexibility Act. A final evaluation has been prepared for this action
and it is contained in the Rules Docket. A copy of it may be obtained
from the Rules Docket at the location provided under the caption
ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
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
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]
2. Section 39.13 is amended by adding a new airworthiness directive
to read as follows:
2001-13-02 Bell Helicopter Textron Canada: Amendment 39-12282.
Docket No. 99-SW-06-AD.
Applicability: Model 407 helicopters, serial numbers 53000
through 53194, certificated in any category.
Note 1: This AD applies to each helicopter identified in the
preceding applicability provision, regardless of whether it has been
otherwise modified, altered, or repaired in the area subject to the
requirements of this AD. For helicopters that have been modified,
altered, or repaired so that the performance of the requirements of
this AD is affected, the owner/operator must request approval for an
alternative method of compliance in accordance with paragraph (b) of
this AD. The request should include an assessment of the effect of
the modification, alteration, or repair on the unsafe condition
addressed by this AD; and if the unsafe condition has not been
eliminated, the request should include specific proposed actions to
address it.
Compliance: Required within 90 calendar days, unless
accomplished previously.
To assist the pilot in properly identifying a specific warning
horn (horn) and prevent an inappropriate pilot response to a horn,
which could cause an engine overspeed and subsequent uncommanded
reduction to flight-idle engine power, accomplish the following:
(a) Remove and replace the following horns and install the
specified terminal junctions in accordance with the Accomplishment
Instructions in Bell Helicopter Textron Alert Service Bulletin No.
407-97-12, dated October 7, 1997:
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Part Name Current Part Number Replacement Part No.
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(1) FADEC Fail Horn................... SC648S........................ VSB628CP
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(2) Low Rotor RPM Horn................ SC628......................... SC628N
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(3) Engine Out Horn................... SC628P........................ SC628NP
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(4) Terminal Junction (2)............. .............................. M81714/65-22-11
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(b) An alternative method of compliance or adjustment of the
compliance time that provides an acceptable level of safety may be
used if approved by the Manager, Rotorcraft Regulations Group,
Rotorcraft Directorate, FAA. Operators shall submit their requests
through an FAA Principal Maintenance Inspector, who may concur or
comment and then send it to the Manager, Rotorcraft Regulations
Group.
Note 2:
Information concerning the existence of approved alternative
methods of compliance with this AD, if any, may be obtained from the
Rotorcraft Regulations Group.
(c) Special flight permits may be issued in accordance with
Secs. 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR
21.197 and 21.199) to operate the helicopter to a location where the
requirements of this AD can be accomplished.
(d) The modification shall be done in accordance with the
Accomplishment Instructions in Bell Helicopter Textron Alert Service
Bulletin No. 407-97-12, dated October 7, 1997. This incorporation by
reference was approved by the Director of the Federal Register in
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be
obtained from Bell Helicopter Textron Canada, 12,800 Rue de
l'Avenir, Mirabel, Quebec JON1LO, telephone (800) 363-8023, fax
(450) 433-0272. Copies may be inspected at the FAA, Office of the
Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663,
Fort Worth, Texas; or at the Office of the Federal Register, 800
North Capitol Street, NW., suite 700, Washington, DC.
(e) This amendment becomes effective on August 1, 2001.
Note 3: The subject of this AD is addressed in Transport Canada
(Canada) AD No. CF-98-13, effective August 7, 1998.
Issued in Fort Worth, Texas, on June 13, 2001.
Eric Bries,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 01-15793 Filed 6-26-01; 8:45 am]
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