[Federal Register Volume 63, Number 183 (Tuesday, September 22, 1998)]
[Rules and Regulations]
[Pages 50490-50492]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-25029]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 97-NM-339-AD; Amendment 39-10776; AD 98-20-09]
RIN 2120-AA64
Airworthiness Directives; British Aerospace (Jetstream) Model
4101 Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment supersedes an existing airworthiness directive
(AD), applicable to all British Aerospace (Jetstream) Model 4101
airplanes, that currently requires repetitive functional testing of the
main entrance door, cleaning and lubricating of the ``speed'' lock and
``G'' lock systems, and repair, if necessary. This amendment adds a
requirement for replacement of the ``G'' lock rollers with new,
improved ``G'' lock rollers. This amendment is prompted by issuance of
mandatory continuing airworthiness information by a foreign civil
airworthiness authority. The actions specified by this AD are intended
to prevent inability of the main entrance door to open, which could
delay or impede passengers from exiting the airplane, or rescue
personnel from entering the airplane during an emergency.
DATES: Effective October 27, 1998.
The incorporation by reference of certain publications, as listed
in the regulations, is approved by the Director of the Federal Register
as of October 27, 1998.
The incorporation by reference of Jetstream Service Bulletin J41-
52-058, dated July 14, 1997, was approved previously by the Director of
the Federal Register as of September 24, 1997 (62 FR 47362, September
9, 1997).
ADDRESSES: The service information referenced in this AD may be
obtained from AI(R) American Support, Inc., 13850 Mclearen Road,
Herndon, Virginia 20171. This information may be examined at the
Federal Aviation Administration (FAA), Transport Airplane Directorate,
Rules Docket, 1601 Lind Avenue, SW., Renton, Washington; or at the
Office of the Federal Register, 800 North Capitol Street, NW., suite
700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Norman B. Martenson, Manager,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-2110; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) by superseding AD 97-19-02,
amendment 39-10122 (62 FR 47362, September 9, 1997), which is
applicable to all British Aerospace (Jetstream) Model 4101 airplanes,
was published in the Federal Register on July 31, 1998 (63 FR 40856).
The action proposed to continue to require repetitive functional
testing of the main entrance door, cleaning and lubricating of the
``speed'' lock and ``G'' lock systems, and repair, if necessary. The
action also proposed to add a requirement for replacement of the ``G''
lock rollers with new, improved ``G'' lock rollers.
[[Page 50491]]
Comments
Interested persons have been afforded an opportunity to participate
in the making of this amendment. Due consideration has been given to
the single comment received.
The commenter supports the proposed rule.
Conclusion
After careful review of the available data, including the comment
noted above, the FAA has determined that air safety and the public
interest require the adoption of the rule as proposed.
Cost Impact
There are approximately 57 airplanes of U.S. registry that will be
affected by this AD.
The actions that are currently required by AD 97-19-02 take
approximately 1 work hour per airplane to accomplish, at an average
labor rate of $60 per work hour. Based on these figures, the cost
impact of the currently required actions on U.S. operators is estimated
to be $3,420, or $60 per airplane, per functional test cycle.
The new actions that are required by this new AD will take
approximately 3 work hours per airplane to accomplish, at an average
labor rate of $60 per work hour. Required parts will be provided by the
manufacturer at no cost to the operators. Based on these figures, the
cost impact of the new requirements of this AD on U.S. operators is
estimated to be $10,260, or $180 per airplane.
The cost impact figures discussed above are based on assumptions
that no operator has yet accomplished any of the requirements of this
AD action, and that no operator would accomplish those actions in the
future if this AD were not adopted.
Regulatory Impact
The regulations adopted herein will not have substantial direct
effects 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, in
accordance with Executive Order 12612, it is determined that this final
rule does not have sufficient federalism implications to warrant the
preparation of a Federalism Assessment.
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
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 removing amendment 39-10122 (62 FR
47362, September 9, 1997), and by adding a new airworthiness directive
(AD), amendment 39-10776, to read as follows:
98-20-09 British Aerospace Regional Aircraft [Formerly Jetstream
Aircraft Limited; British Aerospace (Commercial Aircraft) Limited]:
Amendment 39-10776. Docket 97-NM-339-AD. Supersedes AD 97-19-02,
Amendment 39-10122.
Applicability: All Jetstream Model 4101 airplanes, certificated
in any category.
Note 1: This AD applies to each airplane identified in the
preceding applicability provision, regardless of whether it has been
modified, altered, or repaired in the area subject to the
requirements of this AD. For airplanes 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 (d) 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 as indicated, unless accomplished
previously.
To prevent inability of the main entrance door to open, which
could delay or impede passengers from exiting the airplane, or
rescue personnel from entering the airplane during an emergency,
accomplish the following:
Restatement of Requirements of AD 97-19-02, Amendment 39-10122
(a) Within 30 days after September 24, 1997 (the effective date
of AD 97-19-02, amendment 39-10122), perform a functional test to
verify proper operation of the main entrance door (including the
``G'' lock system) and the ``speed'' lock system of the main
entrance door, in accordance with Section 52-10-05 of BAe Jetstream
Series 4101 Maintenance Manual (MM).
(1) If the ``speed'' lock and the ``G'' lock function
satisfactorily: Within 60 days after September 24, 1997, perform the
actions specified in paragraphs (a)(1)(i) and (a)(1)(ii) of this AD.
(i) Clean (remove existing contaminants and lubricant) and re-
lubricate (with a dry lubricant) the ``speed'' lock and main
entrance door ``G'' lock systems in accordance with Jetstream
Service Bulletin J41-52-058, dated July 14, 1997. And,
(ii) Following accomplishment of paragraph (a)(1)(i) of this AD,
and prior to further flight, repeat the functional test specified in
paragraph (a) of this AD.
(A) If the ``G'' lock and the ``speed'' lock function
satisfactorily in the functional test required by paragraph
(a)(1)(ii) of this AD, accomplish the requirements of paragraph (b)
of this AD.
(B) If the ``G'' lock and the ``speed'' lock do not function
satisfactorily in the functional test required by paragraph
(a)(1)(ii) of this AD: Prior to further flight, repair the ``G''
lock and the ``speed'' lock in accordance with a method approved by
the Manager, International Branch, ANM-116, FAA, Transport Airplane
Directorate.
(2) If either the ``speed'' lock and/or the ``G'' lock do not
function correctly: Prior to further flight, perform the actions
specified in paragraphs (a)(2)(i) and (a)(2)(ii) of this AD.
(i) Clean (remove existing contaminants and lubricant) and re-
lubricate (with a dry lubricant) the main entrance door ``speed''
lock and ``G'' lock systems in accordance with Jetstream Service
Bulletin J41-52-058, dated July 14, 1997. And,
(ii) Following accomplishment of paragraph (a)(2)(i) of this AD,
and prior to further flight, repeat the functional test of the main
entrance door (including the ``G'' lock system) and the ``speed''
lock system, in accordance with the MM.
(A) If the ``G'' lock and ``speed'' lock function satisfactorily
in the functional test required by paragraph (a)(2) of this AD,
accomplish the requirements of paragraph (b) of this AD.
(B) If the ``G'' lock and ``speed'' lock do not function
satisfactorily in the functional tests required by paragraph (a)(2)
of this AD: Prior to further flight, repair the ``G'' lock and
``speed'' lock in accordance with a method approved by the Manager,
International Branch, ANM-116.
(b) Perform the actions specified in paragraphs (b)(1) and
(b)(2) of this AD within 1,500 hours time-in-service following
accomplishment of the initial functional test of the main entrance
door required by paragraph (a) of this AD. Repeat the actions
specified in paragraphs (b)(1) and (b)(2) of this AD, thereafter, at
intervals not to exceed 1,500 hours time-in-service.
[[Page 50492]]
(1) Clean (remove contaminants and dry lubricant) and re-
lubricate (with dry lubricant) the main entrance door ``speed'' lock
and ``G'' lock systems in accordance with Jetstream Service Bulletin
J41-52-058, dated July 14, 1997.
(2) Following accomplishment of paragraph (b)(1) of this AD and
prior to further flight, perform a functional test of the main
entrance door (including the ``G'' lock system) and the ``speed''
lock system, in accordance with the MM. If the ``G'' lock or
``speed'' lock system do not perform satisfactorily: Prior to
further flight, repair the ``G'' lock or ``speed'' lock system in
accordance with a method approved by the Manager, International
Branch, ANM-116.
New Requirements of This AD:
(c) Within 60 days after the effective date of this AD, replace
the ``G'' lock rollers on the main entrance door with new, improved
``G'' lock rollers in accordance with Jetstream Alert Service
Bulletin J41-A-52-059, dated September 12, 1997, or Revision 2,
dated January 23, 1998.
(d) 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, International Branch, ANM-116.
Operators shall submit their requests through an appropriate FAA
Principal Maintenance Inspector, who may add comments and then send
it to the Manager, International Branch, ANM-116.
Note 2: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the International Branch, ANM-116.
(e) Special flight permits may be issued in accordance with
sections 21.197 and 21.199 of the Federal Aviation Regulations (14
CFR 21.197 and 21.199) to operate the airplane to a location where
the requirements of this AD can be accomplished.
(f) Except as provided by paragraphs (a), (a)(1)(ii)(B),
(a)(2)(ii)(B), and (b)(2) of this AD, the actions shall be done in
accordance with Jetstream Service Bulletin J41-52-058, dated July
14, 1997; and Jetstream Alert Service Bulletin J41-A-52-059, dated
September 12, 1997; or Jetstream Alert Service Bulletin J41-A-52-
059, Revision 2, dated January 23, 1998.
(1) The incorporation by reference of Jetstream Alert Service
Bulletin 41-A-52-059, dated September 12, 1997; and Jetstream Alert
Service Bulletin J41-A-52-059, Revision 2, dated January 23, 1998,
is approved by the Director of the Federal Register in accordance
with 5 U.S.C. 552(a) and 1 CFR part 51.
(2) The incorporation by reference of Jetstream Service Bulletin
J41-52-058, dated July 14, 1997, was approved previously by the
Director of the Federal Register as of September 24, 1997 (62 FR
47362, September 9, 1997).
(3) Copies may be obtained from AI(R) American Support, Inc.,
13850 Mclearen Road, Herndon, Virginia 20171. Copies may be
inspected at the FAA, Transport Airplane Directorate, 1601 Lind
Avenue, SW., Renton, Washington; or at the Office of the Federal
Register, 800 North Capitol Street, NW., suite 700, Washington, DC.
Note 3: The subject of this AD is addressed in British
airworthiness directive 001-09-97.
(g) This amendment becomes effective on October 27, 1998.
Issued in Renton, Washington, on September 14, 1998.
Dorenda D. Baker,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 98-25029 Filed 9-21-98; 8:45 am]
BILLING CODE 4910-13-P
