[Federal Register Volume 64, Number 229 (Tuesday, November 30, 1999)]
[Rules and Regulations]
[Pages 66764-66765]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 99-30947]
[[Page 66764]]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 99-NM-176-AD; Amendment 39-11444; AD 99-25-01]
RIN 2120-AA64
Airworthiness Directives; Raytheon Model BAe.125 Series 1000A and
1000B, and Model Hawker 1000 Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD),
applicable to all Raytheon Model BAe.125 series 1000A and 1000B, and
Model Hawker 1000 series airplanes, that requires inspection of P1
pitot pipes for chafing or damage, and various follow-on actions. This
amendment is prompted by reports of P1 pitot pipes chafing against
adjacent flight control cables. The actions specified by this AD are
intended to prevent a hole in the P1 pitot pipes, which would lead to
erroneous input to the instrumentation and warning systems associated
with the pilot's instruments.
DATES: Effective January 4, 2000.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of January 4, 2000.
ADDRESSES: The service information referenced in this AD may be
obtained from Raytheon Aircraft Company, 9709 East Central, Wichita,
Kansas 67206. 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 FAA, Small
Airplane Directorate, Wichita Aircraft Certification Office, 1801
Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas; or at
the Office of the Federal Register, 800 North Capitol Street, NW.,
suite 700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Paul C. DeVore, Aerospace Engineer,
Systems and Propulsion Branch, ACE-116W, FAA, Small Airplane
Directorate, Wichita Aircraft Certification Office, 1801 Airport Road,
Room 100, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316)
946-4142; fax (316) 946-4407.
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 all Raytheon Model BAe.125 series
1000A and 1000B, and Model Hawker 1000 series airplanes, was published
in the Federal Register on September 15, 1999 (64 FR 50018). That
action proposed to require inspection of P1 pitot pipes for chafing or
damage, and various follow-on actions.
Comments
Interested persons have been afforded an opportunity to participate
in the making of this amendment. No comments were submitted in response
to the proposal or the FAA's determination of the cost to the public.
Conclusion
The FAA has determined that air safety and the public interest
require the adoption of the rule as proposed.
Cost Impact
There are approximately 52 airplanes of the affected design in the
worldwide fleet. The FAA estimates that 39 airplanes of U.S. registry
will be affected by this AD, that it will take approximately 1 work
hour per airplane to accomplish the required inspection, and that the
average labor rate is $60 per work hour. Based on these figures, the
cost impact of this AD on U.S. operators is estimated to be $2,340, or
$60 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 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:
99-25-01 Raytheon Aircraft Company: Amendment 39-11444. Docket 99-
NM-176-AD.
Applicability: All Model BAe.125 series 1000A and 1000B, and
Model Hawker 1000 series 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 (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 as indicated, unless accomplished
previously.
To prevent a hole in the P1 pitot pipes, which would lead to
erroneous input to the instrumentation and warning systems
associated with the pilot's instruments, accomplish the following:
Inspections and Corrective Actions
(a) Within 150 flight hours after the effective date of this AD,
perform a one-time general visual inspection to detect chafing or
damage of the P1 pitot pipes, in accordance with Raytheon Service
Bulletin SB.34-3028, dated January 1998.
Note 2: For the purposes of this AD, a general visual inspection
is defined as: ``A visual examination of an interior or exterior
[[Page 66765]]
area, installation, or assembly to detect obvious damage, failure,
or irregularity. This level of inspection is made under normally
available lighting conditions such as daylight, hangar lighting,
flashlight, or drop-light, and may require removal or opening of
access panels or doors. Stands, ladders, or platforms may be
required to gain proximity to the area being checked.''
(1) If no chafing or damage is found, prior to further flight,
ensure a clearance of 0.25 inch or more exists between the P1 pitot
pipes and flight control cables. If clearance is less than 0.25
inch, prior to further flight, reposition the P1 pitot pipes to
achieve 0.25-inch clearance, in accordance with the service
bulletin.
(2) If a pitot pipe is found to be chafed or damaged, prior to
further flight, accomplish the requirements of paragraphs (a)(2)(i),
(a)(2)(ii), and (a)(2)(iii) of this AD.
(i) Replace the discrepant pitot pipe with a new pipe, and
ensure that a clearance of 0.25 inch or more exists between the
flight control cables and the new pitot pipe, in accordance with the
service bulletin. If clearance is less than 0.25 inch, reposition
the P1 pitot pipes to achieve 0.25-inch clearance, in accordance
with the service bulletin.
(ii) Perform a general visual inspection for damage of the
flight control cables adjacent to the area of chafing or damage of
the P1 pitot pipes, in accordance with the service bulletin. If
damage is found, replace the damaged flight control cables with new
cables in accordance with Chapter 20-10-31 of the Aircraft
Maintenance Manual.
(iii) Perform a test of the P1 pitot system to ensure proper
function, in accordance with the service bulletin. If the P1 pitot
system fails the test, perform the corrective actions specified in
Chapter 34-11-00 of the Aircraft Maintenance Manual.
Alternative Methods of Compliance
(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, Wichita Aircraft Certification
Office (ACO), FAA, Small Airplane Directorate. Operators shall
submit their requests through an appropriate FAA Principal
Maintenance Inspector, who may add comments and then send it to the
Manager, Wichita ACO.
Note 3: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the Wichita ACO.
Special Flight Permits
(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.
Incorporation by Reference
(d) Except as provided by paragraphs (a)(2)(ii) and (a)(2)(iii)
of this AD, the action shall be done in accordance with Raytheon
Service Bulletin SB.34-3028, dated January 1998. 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 Raytheon Aircraft Company, 9709 East Central, Wichita,
Kansas 67206. Copies may be inspected at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the
FAA, Small Airplane Directorate, Wichita Aircraft Certification
Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita,
Kansas; or at the Office of the Federal Register, 800 North Capitol
Street, NW., suite 700, Washington, DC.
(e) This amendment becomes effective on January 4, 2000.
Issued in Renton, Washington, on November 22, 1999.
D.L. Riggin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 99-30947 Filed 11-29-99; 8:45 am]
BILLING CODE 4910-13-U
