[Federal Register Volume 63, Number 113 (Friday, June 12, 1998)]
[Rules and Regulations]
[Pages 32119-32121]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-15360]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 97-CE-110-AD; Amendment 39-10577; AD 98-12-23]
RIN 2120-AA64
Airworthiness Directives; British Aerospace Model H.P. 137
Jetstream Mk. 1, Jetstream Model 3101, Jetstream Model 3201, and
Jetstream 200 Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD) that
applies to certain British Aerospace (BAe) Model H.P. 137 Jetstream Mk.
1, Jetstream Model 3101, Jetstream Model 3201, and Jetstream 200 series
airplanes. This AD requires replacing the windshield wiper arm
attachment bolts and windshield wiper arm on all of the affected
airplanes; and measuring the material thickness of the upper and lower
toggle attachment brackets on the nose landing gear of the affected
airplanes, and replacing the toggle attachment bracket lugs. This AD is
the result of mandatory continuing airworthiness information (MCAI)
issued by the airworthiness authority for the United Kingdom. The
actions specified by this AD are intended to prevent the windshield
wiper arm from corroding, detaching from the airplane during flight,
and penetrating the fuselage, which could result in possible injury to
the pilot and passengers; and to prevent collapse of the nose landing
gear caused by design deficiency, which could result in loss of control
of the airplane during landing operations.
DATES: Effective July 28, 1998.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of July 28, 1998.
ADDRESSES: Service information that applies to this AD may be obtained
from British Aerospace Regional Aircraft., Prestwick International
Airport, Ayrshire, KA9 2RW, Scotland;
[[Page 32120]]
telephone: (01292) 479888; facsimile: (01292) 479703. This information
may also be examined at the Federal Aviation Administration (FAA),
Central Region, Office of the Regional Counsel, Attention: Rules Docket
No. 97-CE-110-AD, Room 1558, 601 E. 12th Street, Kansas City, Missouri
64106; or at the Office of the Federal Register, 800 North Capitol
Street, NW, suite 700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Mr. S. M. Nagarajan, Aerospace
Engineer, Small Airplane Directorate, Aircraft Certification Service,
FAA, 1201 Walnut, suite 900, Kansas City, Missouri 64106; telephone:
(816) 426-6934; facsimile: (816) 426-2169.
SUPPLEMENTARY INFORMATION:
Events Leading to the Issuance of This AD
A proposal to amend part 39 of the Federal Aviation Regulations (14
CFR part 39) to include an AD that would apply to certain BAe Model
H.P. 137 Jetstream Mk. 1, Jetstream Model 3101, Jetstream Model 3201,
and Jetstream 200 series airplanes was published in the Federal
Register as a notice of proposed rulemaking (NPRM) on March 26, 1998
(63 FR 14656). The NPRM proposed to require replacing the windshield
wiper arm and windshield wiper arm attachment bolt; and measuring the
outer wall thickness of the nose landing gear (NLG) toggle bracket lugs
and axle bracket lugs. The AD also proposed replacing the toggle
bracket lugs and axle bracket lugs prior to further flight or at the
end of their fatigue life limit, depending on the condition of the
parts. Accomplishment of the proposed actions as specified in the NPRM
would be in accordance with the following:
--Jetstream Series 3100/3200 Service Bulletin (SB) 30-JA 950641, which
incorporates the following pages:
------------------------------------------------------------------------
Pages Revision level Date
------------------------------------------------------------------------
1............................... Revision 1........ March 18, 1997.
2 through 8..................... Revision 2........ March 18, 1997.
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This service bulletin specifies following the procedures provided
in Rosemount Aerospace Inc. Service Bulletin No. 2314M-30-16, dated
December, 1996;
--APPH Precision Hydraulics SB No. 32-66, which incorporates the
following pages:
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Pages Revision level Date
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1, 3, 4, and 5.................. Revision 1........ October 1996.
2 and 6......................... Revision 2........ March 1997.
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This service bulletin is referenced in Accomplishment Instructions
section of Jetstream Series 3100/3200 Alert Service Bulletin No. 32-JA
960601, Original Issue: October 25, 1996, Revision No. 1: dated April
11, 1997.
The NPRM was the result of mandatory continuing airworthiness
information (MCAI) issued by the airworthiness authority for the United
Kingdom.
Interested persons have been afforded an opportunity to participate
in the making of this amendment. No comments were received on the
proposed rule or the FAA's determination of the cost to the public.
The FAA's Determination
After careful review of all available information related to the
subject presented above, the FAA has determined that air safety and the
public interest require the adoption of the rule as proposed except for
minor editorial corrections. The FAA has determined that these minor
corrections will not change the meaning of the AD and will not add any
additional burden upon the public than was already proposed.
Cost Impact
The FAA estimates that 314 airplanes in the U.S. registry will be
affected by the windshield wiper portion of this AD, that it will take
approximately 2 workhours per airplane to accomplish the replacement
required by this AD, and that the average labor rate is approximately
$60 an hour. Parts will be provided at no cost. Based on these figures,
the total cost impact for the windshield wiper portion of this AD on
U.S. operators is estimated to be $37,680, or $120 per airplane.
The FAA estimates that 284 airplanes in the U.S. registry will be
affected by the nose landing gear portion of this AD, that it will take
approximately 2 workhours per airplane to accomplish the measurement
required by this AD, and that the average labor rate is approximately
$60 an hour. The cost impact only takes into account the cost of the
initial inspection. The FAA has no way to determine the number of parts
that may be found damaged or in need of replacement as a result of the
initial inspection. Therefore, the FAA is not approximating the cost of
parts or the workhours to accomplish a part replacement for this AD.
Based on these figures, the total cost impact for the inspection of the
nose landing gear portion of this AD on U.S. operators is estimated to
be $34,080, or $120 per airplane.
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 copy of the final evaluation prepared for this
action is contained in the Rules Docket. A copy of it may be obtained
by contacting 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
(AD) to read as follows:
98-12-23 British Aerospace: Amendment 39-10577; Docket No. 97-CE-
110-AD.
Applicability: Model H.P. 137 Jetstream Mk. 1, Jetstream Model
3101, Jetstream Model 3201, and Jetstream 200 series airplanes, all
serial numbers, 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
[[Page 32121]]
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 in the body of this AD, unless
already accomplished.
To prevent the windshield wiper arm from corroding, detaching
from the airplane during flight, and penetrating the fuselage,
which, if not corrected, could result in possible injury to pilot
and passengers; and to prevent collapse of the nose landing gear
caused by design deficiency, which could result in loss of control
of the airplane during landing operations, accomplish the following:
(a) Within the next 90 days after the effective date of this AD,
replace the windshield wiper arm and windshield wiper attachment
bolt in accordance with the Accomplishment Instructions section in
Jetstream Series 3100/3200 Service Bulletin (SB) 30-JA 950641, which
incorporates the following pages:
------------------------------------------------------------------------
Pages Revision level Date
------------------------------------------------------------------------
1............................... Revision 1........ March 18, 1997.
2 through 8..................... Revision 2........ March 18, 1997.
------------------------------------------------------------------------
This service bulletin specifies following the procedures
provided in the Accomplishment Instructions section of Rosemount
Aerospace Inc. Service Bulletin No. 2314M-30-16, dated December
1996.
(b) Within the next 90 days after the effective date of this AD,
measure the outer wall thickness of the nose landing gear (NLG)
toggle bracket lugs and the axle bracket lugs in accordance with the
Accomplishment Instructions in APPH Precision Hydraulics SB No. 32-
66, which incorporates the following pages:
------------------------------------------------------------------------
Pages Revision level Date
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1, 3, 4, and 5.................. Revision 1........ October 1996.
2 and 6......................... Revision 2........ March 1997.
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Note 2: The APPH SB is referenced in the Accomplishment
Instructions in Jetstream Series 3100/3200 Alert Service Bulletin
No. 32-JA 960601, Revision No. 1, April 11, 1997, Original Issue,
October 25, 1996.
(1) Prior to further flight, replace the NLG toggle bracket lugs
and axle bracket lugs, if the measurements of the outer wall
thickness do not meet the criteria set out in the Table contained in
paragraph B. (5) of the Accomplishment Instructions section in APPH
Precision Hydraulics SB No. 32-66, as referenced in paragraph (b) of
this AD.
(2) If the measurements of the outer wall thickness are within
the criteria set out in the Table contained in paragraph B. (5) of
the Accomplishment Instructions section in APPH Precision Hydraulics
SB 32-66, as referenced in paragraph (b) of this AD, replace the NLG
toggle bracket lugs and axle bracket lugs at the end of the fatigue
life limits of the part, as specified in the Table referenced above,
or within the next 50 landings after the measurement is taken,
whichever occurs later.
Note 3: The compliance time in this AD takes precedence over the
compliance times published in the applicable service bulletins.
(c) 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.
(d) An alternative method of compliance or adjustment of the
compliance time that provides an equivalent level of safety may be
approved by the Manager, Small Airplane Directorate, Aircraft
Certification Service, 1201 Walnut, suite 900, Kansas City, Missouri
64106. The request shall be forwarded through an appropriate FAA
Maintenance Inspector, who may add comments and then send it to the
Manager, Small Airplane Directorate.
Note 4: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the Small Airplane Directorate.
(e) Questions or technical information related to the service
information referenced in this AD should be directed to British
Aerospace Regional Aircraft, Prestwick International Airport,
Ayrshire, KA9 2RW, Scotland; telephone (01292) 79888; facsimile
(01292) 671715. This service information may be examined at the FAA,
Central Region, Office of the Regional Counsel, Room 1558, 601 E.
12th Street, Kansas City, Missouri 64106.
(f) The replacements required by this AD shall be done in
accordance with Jetstream Series 3100/3200 Service Bulletin 30-JA
950641, which incorporates the following pages:
------------------------------------------------------------------------
Pages Revision level Date
------------------------------------------------------------------------
1............................... Revision 1........ March 18, 1997.
2 through 8..................... Revision 2........ March 18, 1997.
------------------------------------------------------------------------
This service bulletin specifies following the procedures
provided in Rosemount Aerospace Inc. Service Bulletin No. 2314M-30-
16, dated December, 1996;
--APPH Precision Hydraulics Service Bulletin No. 32-66, which
incorporates the following pages:
------------------------------------------------------------------------
Pages Revision level Date
------------------------------------------------------------------------
1, 3, 4, and 5.................. Revision 1........ October 1996.
2 and 6......................... Revision 2........ March 1997.
------------------------------------------------------------------------
This service bulletin is referenced in Accomplishment
Instructions section of Jetstream Series 3100/3200 Alert Service
Bulletin No. 32-JA 960601, Original Issue: October 25, 1996,
Revision No. 1: dated April 11, 1997.
(1) 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.
(2) Copies may be obtained from British Aerospace Regional
Aircraft, Prestwick International Airport, Ayrshire, KA9 2RW,
Scotland. Copies may be inspected at the FAA, Central Region, Office
of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City,
Missouri, or at the Office of the Federal Register, 800 North
Capitol Street, NW, suite 700, Washington, DC.
Note 5: The subject of this AD is addressed in British AD 002-
10-96, not dated, for the nose landing gear condition; and British
AD 006-08-96, not dated, for the windshield wiper condition.
(g) This amendment becomes effective on July 28, 1998.
Issued in Kansas City, Missouri, on June 3, 1998.
Ronald K. Rathgeber,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 98-15360 Filed 6-11-98; 8:45 am]
BILLING CODE 4910-13-U