[Federal Register Volume 64, Number 27 (Wednesday, February 10, 1999)]
[Rules and Regulations]
[Pages 6512-6514]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 99-2904]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 98-CE-66-AD; Amendment 39-11032; AD 99-04-08]
RIN 2120-AA64
Airworthiness Directives; Raytheon Aircraft Company Models 1900,
1900C, and 1900D 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 Raytheon Aircraft Company (Raytheon) Models 1900,
1900C, and 1900D airplanes. This AD requires inspecting the main
landing gear hydraulic actuators to determine whether a certain Frisby
Aerospace actuator is installed, and reworking or replacing any of
these Frisby Aerospace actuators. This AD is the result of reports of
fatigue cracks in the end cap of main landing gear hydraulic actuators
manufactured by Frisby Aerospace and installed on the affected
airplanes. The actions specified by this AD are intended to prevent the
main landing gear from failing to lock down due to the hydraulic
actuator cracking and separating, which could result in loss of control
of the airplane during landing, taxi, or ground operations.
DATES: Effective March 26, 1999.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of March 26, 1999.
ADDRESSES: Service information that applies to this AD may be obtained
from the Raytheon Aircraft Company, PO Box 85, Wichita, Kansas 67201-
0085; telephone: (800) 625-7043 or (316) 676-4556. This information may
also be examined at the Federal Aviation Administration (FAA), Central
Region, Office of the Regional Counsel, Attention: Rules Docket No. 98-
CE-66-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. Paul C. DeVore, Aerospace
Engineer, Wichita Aircraft Certification Office, FAA, 1801 Airport
Road, Mid-Continent Airport, Wichita, Kansas 67209; telephone: (316)
946-4142; facsimile: (316) 946-4407.
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 Raytheon
Models 1900, 1900C, and 1900D airplanes was published in the Federal
Register as a notice of proposed rulemaking (NPRM) on October 16, 1998
(63 FR 55560). The NPRM proposed to require inspecting the main landing
gear hydraulic actuators to determine whether any Frisby Aerospace
actuator, part number (P/N) 120114-380041-11 or P/N 114-380041-13, is
installed, and reworking or replacing any of these Frisby Aerospace
actuators. Accomplishment of the proposed inspection as specified in
the NPRM would be in accordance with Raytheon Mandatory Service
Bulletin SB.32-3141, Issued: January, 1998. Accomplishment of the
proposed
[[Page 6513]]
removal and replacement as specified in the NPRM would be in accordance
with the applicable maintenance manual. Accomplishment of the rework as
specified in the NPRM would be in accordance with Frisby Aerospace
Service Bulletin 1FA10043-0001, dated October 1997.
The NPRM was the result of reports of fatigue cracks in the end cap
of main landing gear hydraulic actuators manufactured by Frisby
Aerospace and installed on the affected airplanes.
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 378 airplanes in the U.S. registry will be
affected by this AD, that it will take approximately 1 workhour per
airplane to accomplish the inspection, and that the average labor rate
is approximately $60 an hour. Based on these figures, the total cost
impact of the inspection on U.S. operators is estimated to be $22,680,
or $60 per airplane.
If any of the affected airplanes have any of the affected Frisby
Aerospace main landing gear hydraulic actuators installed, it will take
approximately 5 workhours per actuator to accomplish the replacement
and an additional 4 workhours per actuator to accomplish the rework.
The average labor rate is approximately $60 per hour. Parts will cost
$3,871 for each new actuator; $2,865 for each overhauled actuator; and
$1,997 for each rework/upgrade kit. Based on these figures, the cost
impact on those operators choosing the replacement of the main landing
gear hydraulic actuators will be approximately $8,342 per airplane that
will have two new actuators installed, or $6,330 per airplane that will
have two overhauled actuators installed; and the cost impact on those
operators choosing to incorporate the main landing gear hydraulic
actuator rework/upgrade kit on each actuator will be approximately
$5,074 per airplane. Raytheon will give warranty credit for a
replacement actuator until January 2001.
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:
99-04-08 Raytheon Aircraft Company (Type Certificate No. A24CE
formerly held by the Beech Aircraft Corporation): Amendment 39-
11032; Docket No. 98-CE-66-AD.
Applicability: The following airplane models and serial numbers,
certificated in any category:
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Model Serial Nos.
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1900................................... UA-2 and UA-3.
1900C.................................. UB-1 through UB-74, and UC-1 through UC-174.
1900C (C-12J).......................... UD-1 through UD-6.
1900D.................................. UE-1 through UE-299.
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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: Inspection required as indicated below, unless
already accomplished; and replacement or rework, if required, would
be prior to further flight after the inspection required in
paragraph (a) of this AD, unless already accomplished:
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Hours time-in-service (TIS) accumulated on
the main landing gear hydraulic actuator Inspection compliance time
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Less Than 6,000 hours TIS................. Upon accumulating 6,600
hours TIS on the actuator
or within the next 600
hours TIS after the
effective date of this AD,
whichever occurs later.
[[Page 6514]]
6,000 hours TIS through 6,999 hours TIS... Within the next 600 hours
TIS after the effective
date of this AD.
7,000 hours TIS through 7,999 hours TIS... Within the next 500 hours
TIS after the effective
date of this AD.
8,000 hours TIS through 8,999 hours TIS... Within the next 400 hours
TIS after the effective
date of this AD.
9,000 hours TIS through 9,999 hours TIS... Within the next 300 hours
TIS after the effective
date of this AD.
10,000 Hours TIS or more.................. Within the next 200 Hours
TIS after the effective
date of this AD.
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To prevent the main landing gear from failing to lock down due
to the hydraulic actuator cracking and separating, which could
result in loss of control of the airplane during landing, taxi, or
ground operations, accomplish the following:
(a) Inspect the main landing gear hydraulic actuators to
determine whether any Frisby Aerospace actuator, part number (P/N)
114-380041-11 or P/N 114-380041-13, is installed. Accomplish this
inspection in accordance with Raytheon Mandatory Service Bulletin
SB.32-3141, Issued: January, 1998.
(b) If any Frisby Aerospace actuator, P/N 114-380041-11 or P/N
114-380041-13, is installed, prior to further flight, remove it and
accomplish one of the following:
(1) Replace the Frisby Aerospace actuator with one of a part
number listed in the Material Information section of Raytheon
Mandatory Service Bulletin SB.32-3141, Issued: January, 1998.
Accomplish this replacement in accordance with the applicable
maintenance manual; or
(2) Rework the Frisby Aerospace actuator by incorporating the
kit referenced in the Material Information section of Raytheon
Mandatory Service Bulletin SB.32-3141, Issued: January, 1998.
Accomplish this rework in accordance with Frisby Aerospace Service
Bulletin 1FA10043-0001, dated October 1997.
(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 times that provides an equivalent level of safety may be
approved by the Manager, Wichita Aircraft Certification Office
(ACO), 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita,
Kansas 67209. The request shall be forwarded through an appropriate
FAA Maintenance Inspector, who may add comments and then send it to
the Manager, Wichita ACO.
Note 2: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the Wichita ACO.
(e) The inspection required by this AD shall be done in
accordance with Raytheon Mandatory Service Bulletin SB.32-3141,
Issued: January, 1998. The rework required by this AD shall be done
in accordance with Frisby Aerospace Service Bulletin 1FA10043-0001,
dated October 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 Raytheon
Aircraft Corporation, P.O. Box 85, Wichita, Kansas 67201-0085.
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.
(f) This amendment becomes effective on March 26, 1999.
Issued in Kansas City, Missouri, on February 2, 1999.
Michael Gallagher,
Manager, Small Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 99-2904 Filed 2-9-99; 8:45 am]
BILLING CODE 4910-13-U
