Airworthiness Directives; Raytheon Model BAe 125-800A and BAe 125-800B, Model Hawker 800, and Model Hawker 800XP Series Airplanes

[Federal Register Volume 65, Number 81 (Wednesday, April 26, 2000)]
[Rules and Regulations]
[Pages 24381-24383]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 00-9896]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 99-NM-13-AD; Amendment 39-11693; AD 2000-08-07]
RIN 2120-AA64


Airworthiness Directives; Raytheon Model BAe 125-800A and BAe 
125-800B, Model Hawker 800, and Model Hawker 800XP 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 Raytheon Model BAe 125-800A and BAe 125-
800B, Model Hawker 800, and Model Hawker 800XP series airplanes, that 
currently requires the filling of two tooling holes on the firewalls of 
the left and right engine pylons with firewall sealant. This amendment 
requires the sealing of all unused (open) tooling holes on the 
firewalls of the left and right engine pylons, and expands the 
applicability to include additional airplanes. This amendment is 
prompted by reports of additional unused (open) tooling holes, found at 
locations other than those currently addressed. The actions specified 
by this AD are intended to prevent an engine fire from moving to the 
fuselage and to the lines that carry flammable fluid that are located 
inboard of the firewall.

DATES: Effective May 31, 2000.
    The incorporation by reference of Raytheon Service Bulletin SB.54-
1-3815B, Revision 1, dated May 1998, as listed in the regulations, is 
approved by the Director of the Federal Register of May 31, 2000.
    The incorporation by reference of Raytheon Service Bulletin SB.54-
1-3815B, dated March 26, 1996, as listed in the regulations, was 
approved previously by the Director of the Federal Register as of 
January 27, 1997 (61 FR 66878, December 19, 1996).

ADDRESSES: The service information referenced in this AD may be 
obtained from Raytheon Aircraft Company, Manager Service Engineering, 
Hawker Customer Support Department, P.O. Box 85, Wichita, Kansas, 
67201-0085. This information may be examined at the

[[Page 24382]]

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: Jeffrey A. Pretz, 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) 
946-4153; fax (316) 946-4407.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal 
Aviation Regulations (14 CFR part 39) by superseding AD 96-24-16, 
amendment 39-9840 (61 FR 66878, December 19, 1996), which is applicable 
to certain Raytheon Model BAe 125-800A and BAe 125-800B, Model Hawker 
800, and Model Hawker 800XP series airplanes, was published in the 
Federal Register on January 24, 2000 (65 FR 3619). The action proposed 
to continue to require the filling of two tooling holes on the 
firewalls of the left and right engine pylons with firewall sealant. 
The action also proposed to require the sealing of all unused (open) 
tooling holes on the firewalls of the left and right engine pylons, and 
would expand the applicability to include additional airplanes.

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 340 Model BAe 125-800A and BAe 125-800B, 
Model Hawker 800, and Model Hawker 800XP series airplanes of the 
affected design in the worldwide fleet. The FAA estimates that 221 
airplanes of U.S. registry will be affected by this AD.
    The actions that are currently required by AD 96-24-16, and 
retained in this AD, take approximately 2 work hours per airplane to 
accomplish, at an average labor rate of $60 per work hour. Based on 
these figures, the cost impact of the currently required actions on 
U.S. operators is estimated to be $120 per airplane.
    The new actions that are required in this AD action will take 
approximately 2 work hours per airplane to accomplish, at an average 
labor rate of $60 per work hour. Based on these figures, the cost 
impact of the requirements of this AD on U.S. operators is estimated to 
be $26,520, or $120 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 a substantial direct 
effect 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, it 
is determined that this final rule does not have federalism 
implications under Executive Order 13132.
    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 39-9840 (61 FR 
66878, December 19, 1996), and by adding a new airworthiness directive 
(AD), amendment 39-11693, to read as follows:

2000-08-07  Raytheon Aircraft Co. (Formerly Beech): Amendment 39-
11693. Docket 99-NM-13-AD. Supersedes AD 96-24-16, Amendment 39-
9840.

    Applicability: Model BAe 125-800A and BAe 125-800B, Model Hawker 
800, and Model Hawker 800XP series airplanes; as listed in Raytheon 
Service Bulletin SB.54-1-3815B, Revision 1, dated May 1998; 
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.

    Compliance: Required as indicated, unless accomplished 
previously.
    To prevent an engine fire from moving to the fuselage and to the 
lines that carry flammable fluid that are located inboard of the 
firewall, accomplish the following:

Restatement of Requirements of AD 96-24-16

    (a) For airplanes identified in AD 96-24-16, amendment 39-9840: 
Within 6 months after January 27, 1997 (the effective date of AD 96-
24-16), fill the two, unused tooling holes in the firewalls of the 
left and right engine pylons, in accordance with Raytheon Service 
Bulletin SB.54-1-3815B, dated March 26, 1996, or Raytheon Service 
Bulletin SB.54-1-3815B, Revision 1, dated May 1998. After the 
effective date of this AD, only Revision 1 of this service bulletin 
shall be used.

New Requirements of This AD

    (b) For all airplanes: Within 6 months after the effective date 
of this AD, fill all unused tooling holes in the left and right 
engine pylon firewalls with firewall sealant, in accordance with 
Raytheon Service Bulletin SB.54-1-3815B, Revision 1, dated May 1998.

Alternative Methods of Compliance

    (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), ACE-116W, FAA, Small Airplane Directorate. Operators 
shall submit their requests through an appropriate FAA Principal 
Maintenance

[[Page 24383]]

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.

Special Flight Permits

    (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.

Incorporation by Reference

    (e) The actions shall be done in accordance with Raytheon 
Service Bulletin SB.54-1-3815B, dated March 26, 1996; or Raytheon 
Service Bulletin SB.54-1-3815B, Revision 1, dated May 1998.
    (1) The incorporation by reference of Raytheon Service Bulletin 
SB.54-1-3815B, Revision 1, dated May 1998, is approved by the 
Director of the Federal Register in accordance with 5 U.S.C. 552(a) 
and 1 CFR part 51.
    (2) The incorporation by reference of Raytheon Service Bulletin 
SB.54-1-3815B, dated March 26, 1996, was approved previously by the 
Director of the Federal Register as of January 27, 1997 (61 FR 
66878, December 19, 1996).
    (3) Copies may be obtained from Raytheon Aircraft Company, 
Manager Service Engineering, 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, 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.
    (f) This amendment becomes effective on May 31, 2000.

    Issued in Renton, Washington, on April 14, 2000.
Charles D. Huber,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 00-9896 Filed 4-25-00; 8:45 am]
BILLING CODE 4910-13-P

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