[Federal Register Volume 62, Number 176 (Thursday, September 11, 1997)]
[Rules and Regulations]
[Pages 47753-47754]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-23858]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 96-NM-220-AD; Amendment 39-10121; AD 97-19-01]
RIN 2120-AA64
Airworthiness Directives; Saab Model SAAB 2000 Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: This amendment adopts a new airworthiness directive (AD),
applicable to certain Saab Model SAAB 2000 series airplanes, that
requires a one-time inspection of the hydraulic tubes and electrical
harness wires of the wing rear access door for chafing, leakage, or
wear damage; repair of any discrepancy found; and modification of the
wing rear access door. This amendment is prompted by reports of
interference between the wing rear access door and the hydraulic tubes
and electrical harnesses, and chafing damage to the hydraulic tubes.
The actions specified by this AD are intended to prevent such
interference or chafing damage, which could lead to failure of the
number 2 hydraulic system or loss of certain electrical and landing
systems, and resultant reduced controllability of the airplane.
DATES: Effective October 16, 1997.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of October 16, 1997.
ADDRESSES: The service information referenced in this AD may be
obtained from SAAB Aircraft AB, SAAB Aircraft Product Support, S-
581.88, Linkoping, Sweden. 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: Ruth Harder, Aerospace Engineer,
Standardization Branch, ANM-113, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-1721; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to include an airworthiness
directive (AD) that is applicable to certain Saab Model SAAB 2000
series airplanes was published in the Federal Register on June 24, 1997
(62 FR 34024). That action proposed to require a one-time visual
inspection of the hydraulic tubes and electrical harness wires of the
wing rear access door for chafing, leakage, or wear damage; repair of
any discrepancy found; and modification of the wing rear access door.
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
The FAA estimates that 3 Saab Model SAAB 2000 series airplanes of
U.S. registry will be affected by this AD, that it will take
approximately 4 work hours per airplane to accomplish the required
actions, and that the average labor rate is $60 per work hour. Required
parts will be provided by the manufacturer at no cost to operators.
Based on these figures, the cost impact of the AD on U.S. operators
is estimated to be $720, or $240 per airplane.
The cost impact figure discussed above is 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
[[Page 47754]]
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 adding the following new
airworthiness directive:
97-19-01 SAAB Aircraft AB: Amendment 39-10121. Docket 96-NM-220-AD.
Applicability: Model SAAB 2000 series airplanes, serial numbers
-004 through -030 inclusive, certificated in any category.
Note 1: This AD applies to each airplane 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 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 damage to the hydraulic tubes and electrical
harnesses, which could lead to failure of the number 2 hydraulic
system or loss of certain electrical and landing systems, and
resultant reduced controllability of the airplane, accomplish the
following:
(a) Within 60 days after the effective date of this AD, perform
a one-time visual inspection of the hydraulic tubes and electrical
harness wires of the wing rear access door for chafing, leakage, or
wear damage; in accordance with paragraph B. of the Accomplishment
Instructions of Saab Service Bulletin 2000-53-010, Revision 01,
dated October 10, 1995.
(1) If any chafing or leakage of the hydraulic tubes is
detected, prior to further flight, repair in accordance with a
method approved by the Manager, Standardization Branch, ANM-113,
FAA, Transport Airplane Directorate.
(2) If any damage to the metal braid or wire insulation is
detected, prior to further flight, repair in accordance with
paragraph E. of the Accomplishment Instructions of Saab Service
Bulletin 2000-53-010, Revision 01, dated October 10, 1995.
(b) Within 60 days after the effective date of this AD, modify
the wing rear access door and apply silicon tape to the electrical
harnesses, in accordance with paragraph C. of the Accomplishment
Instructions of Saab Service Bulletin 2000-53-010, Revision 01,
dated October 10, 1995.
(c) As of the effective date of this AD, no person shall install
wing rear access doors, part numbers 7353500-713/-714 or 7353500-
715/-716, on any airplane, unless the part has been modified in
accordance with Saab Service Bulletin 2000-53-010, Revision 01,
dated October 10, 1995.
(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, Standardization Branch, ANM-113.
Operators shall submit their requests through an appropriate FAA
Principal Maintenance Inspector, who may add comments and then send
it to the Manager, Standardization Branch, ANM-113.
Note 2: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the Standardization Branch, ANM-113.
(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) The inspection, modification, and certain repairs shall be
done in accordance with Saab Service Bulletin 2000-53-010, Revision
01, dated October 10, 1995. 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 SAAB
Aircraft AB, SAAB Aircraft Product Support, S-581.88, Linkoping,
Sweden. 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.
(g) This amendment becomes effective on October 16, 1997.
Issued in Renton, Washington, on September 3, 1997.
Darrell M. Pederson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 97-23858 Filed 9-10-97; 8:45 am]
BILLING CODE 4910-13-U
