[Federal Register Volume 61, Number 162 (Tuesday, August 20, 1996)]
[Rules and Regulations]
[Pages 42994-42996]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 96-21009]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 96-NM-54-AD; Amendment 39-9718; AD 96-17-09]
RIN 2120-AA64
Airworthiness Directives; Beech (Raytheon) Model Hawker 1000 and
BAe 125-1000A Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment supersedes an existing airworthiness directive
(AD), applicable to certain Beech (Raytheon) Model Hawker 1000 and BAe
125-1000A series airplanes, that currently requires inspections to
detect various discrepancies of the fuel hose assemblies on the
auxiliary power unit (APU), and correction of any discrepancy found.
That AD was prompted by several reports of heat damage to the fuel hose
assembly on the APU. This amendment adds a requirement to replace the
existing conduit of the fuel feed hose with new
[[Page 42995]]
improved conduit, which will terminate the repetitive inspections. The
actions specified by this AD are intended to prevent failure of a fuel
hose due to heat damage caused by incorrect routing or bleed air
leakage; such failure could result in a malfunction of the APU, a fuel
fire in the fuselage rear equipment bay, and reduced structural
integrity of the surrounding structure.
DATES: Effective September 24, 1996.
The incorporation by reference of Beech (Raytheon/Hawker) Service
Bulletin SB.49-47-25A825A, dated August 1, 1995, listed in the
regulations is approved by the Director of the Federal Register as of
September 24, 1996.
The incorporation by reference of Raytheon Service Bulletin SB 49-
44, dated January 20, 1995, listed in the regulations was approved
previously by the Director of the Federal Register as of May 23, 1995
(60 FR 22501, May 8, 1995).
ADDRESSES: The service information referenced in this AD may be
obtained from Beech Aircraft Corporation, Hawker Customer Support
Department, P.O. Box 85, Wichita, Kansas 67201-0085. 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, Wichita Aircraft Certification Office, Small
Airplane Directorate, 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:
Karl Schletzbaum, Aerospace Engineer, ACE-116W, Wichita Aircraft
Certification Office, FAA, Small Airplane Directorate, 1801 Airport
Road, Room 100, Mid-Continent Airport, Wichita, Kansas; telephone (316)
946-4146; fax (316) 946-4407.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) by superseding AD 95-10-01,
amendment 39-9218 (60 FR 22501, May 8, 1995), which is applicable to
certain Beech (Raytheon) Model Hawker 1000 and BAe 125-1000A series
airplanes, was published in the Federal Register on May 21, 1996 (61 FR
25418). That action proposed to supersede AD 95-10-01 to continue to
require inspections to detect various discrepancies of the fuel hose
assemblies on the auxiliary power unit (APU), and correction of any
discrepancy found. That action also proposed to add a new requirement
to replace the existing vinyl conduit of the fuel feed hose for the APU
with a new improved conduit, which would constitute terminating action
for the repetitive inspection requirements.
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.
The FAA has determined that air safety and the public interest require
the adoption of the rule as proposed.
Cost Impact
There are approximately 48 Beech Model Hawker 1000 and BAe 125-
1000A series airplanes of the affected design in the worldwide fleet.
The FAA estimates that 31 airplanes of U.S. registry will be affected
by this proposed AD.
The actions that are currently required by AD 95-10-01 and retained
in this new AD 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 on U.S. operators of the actions
currently required is estimated to be $1,860, or $60 per airplane.
The new actions that are required by this new AD will take
approximately 4 work hours per airplane to accomplish, at an average
labor rate of $60 per work hour. Required parts will cost approximately
$218 per airplane. Based on these figures, the cost impact on U.S.
operators of the new requirements of this AD is estimated to be
$14,198, or $458 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 39-9218 (60 FR
22501, May 8, 1995), and by adding a new airworthiness directive (AD),
amendment 39-9718, to read as follows:
96-17-09 Beech Aircraft Corporation (formerly DeHavilland; Hawker
Siddeley; British Aerospace, plc; Raytheon Corporate Jets, Inc.):
Amendment 39-9718. Docket 96-NM-54-AD. Supersedes AD 95-10-01,
Amendment 39-9218.
Applicability: Model Hawker 1000 and BAe 125-1000A series
airplanes, post modification 259722C; 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 (c) 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.
Note 2: Beech (Raytheon) Model BAe 125-1000B series airplanes
are similar in design to the airplanes that are subject to the
requirements of this AD and, therefore, also may be subject to the
unsafe condition
[[Page 42996]]
addressed by this AD. However, as of the effective date of this AD,
those models are not type certificated for operation in the United
States. Airworthiness authorities of countries in which the Model
BAe 125-1000B series airplanes are approved for operation should
consider adopting corrective action, applicable to those models,
that is similar to the corrective action required by this AD.
Compliance: Required as indicated, unless accomplished
previously.
To prevent failure of a fuel hose assembly on the auxiliary
power unit (APU), which could result in a malfunction of the APU, a
potential fuel fire in the fuselage rear bay, and reduced structural
integrity of the surrounding structure, accomplish the following:
(a) Within 30 days after May 23, 1995 (the effective date of AD
95-10-01, amendment 39-9218), perform inspections to detect
discrepancies of the fuel feed hose assemblies on the APU; an
inspection to assure proper positioning of the air leak detection
system; and an inspection of the bleed air system for signs of
leakage; in accordance with paragraph 2.B. of the Accomplishment
Instructions of Raytheon Service Bulletin SB 49-44, dated January
20, 1995.
(1) If no discrepancy is found: Thereafter, following the last
flight of each day, perform an inspection to detect discoloration of
the fuel hose assembly (outlet from the fuel pump box) on the APU,
in accordance with paragraph 2.B.(2) and 2.C. of the Accomplishment
Instructions of the service bulletin.
(2) If any discrepancy is found, prior to further flight,
correct the discrepancy in accordance with paragraph 2.B. of the
Accomplishment Instructions of the service bulletin.
(b) Within 200 flight hours after the effective date of this AD,
replace the existing conduit of the fuel feed hose for the auxiliary
power unit (APU) with new improved conduit (modification 25A825A),
in accordance with Beech (Raytheon/Hawker) Service Bulletin SB.49-
47-25A825A, dated August 1, 1995. Accomplishment of the replacement
constitutes terminating action for paragraph (a) of this AD.
(c) 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.
(d) 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.
(e) The actions shall be done in accordance with Raytheon
Service Bulletin SB 49-44, dated January 20, 1995, or Beech
(Raytheon/Hawker) Service Bulletin SB.49-47-25A825A, dated August 1,
1995. The incorporation by reference of Beech (Raytheon/Hawker)
Service Bulletin SB.49-47-25A825A, dated August 1, 1995, was
approved by the Director of the Federal Register in accordance with
5 U.S.C. 552(a) and 1 CFR part 51. The incorporation by reference of
Raytheon Service Bulletin SB 49-44, dated January 20, 1995, was
approved previously by the Director of the Federal Register in
accordance with 5 U.S.C. 552(a) and 1 CFR part 51 as of May 23, 1995
(60 FR 22501, May 8, 1995). Copies may be obtained from Beech
Aircraft Corporation, Hawker Customer Support Department, P.O. Box
85, Wichita, Kansas 67201-0085. Copies may be inspected at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton,
Washington; or at the FAA, Wichita Aircraft Certification Office,
Small Airplane Directorate, 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.
(f) This amendment becomes effective on September 24, 1996.
Issued in Renton, Washington, on August 12, 1996.
Darrell M. Pederson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 96-21009 Filed 8-19-96; 8:45 am]
BILLING CODE 4910-13-U
