Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ Airplanes, 18199-18201 [06-3379]

Download as PDF Federal Register / Vol. 71, No. 69 / Tuesday, April 11, 2006 / Rules and Regulations on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. We prepared a regulatory evaluation of the estimated costs to comply with this AD and placed it in the AD docket. See the ADDRESSES section for a location to examine the regulatory evaluation. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: by adding the following new airworthiness directive (AD): 2006–07–24 Boeing: Amendment 39–14551. Docket No. FAA–2005–20688; Directorate Identifier 2004–NM–165–AD. I Effective Date PART 39—AIRWORTHINESS DIRECTIVES (a) This AD becomes effective May 16, 2006. 1. The authority citation for part 39 continues to read as follows: I List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. 18199 Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 Affected ADs (b) None. Applicability [Amended] 2. The Federal Aviation Administration (FAA) amends § 39.13 I (c) This AD applies to airplanes listed in Table 1 of this AD, certificated in any category. TABLE 1.—APPLICABILITY Boeing model As listed in Boeing Special Attention Service Bulletin— (1) 757–200 series airplanes .................................................................... (2) 757–300 series airplanes .................................................................... Unsafe Condition (d) This AD was prompted by a report of some loose wire terminations in the P50 panel that caused intermittent indications in the flight deck. We are issuing this AD to prevent intermittent indications in the flight deck, incorrect circuitry operation in the panels, and airplane system malfunctions that may adversely affect the alternate flaps, alternate gear extension, and fire extinguishing. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Replacements (f) Within 24 months after the effective date of this AD, replace the P1–1, P1–3, P3– 1, P3–3, P50, P51, and P54 panels with new P1–1, P1–3, P3–1, P3–3, P50, P51, and P54 panels, in accordance with the Accomplishment Instructions of the applicable service bulletin listed in Table 1 of this AD. wwhite on PROD1PC61 with NOTICES Alternative Methods of Compliance (AMOCs) (g)(1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Material Incorporated by Reference (h) You must use Boeing Special Attention Service Bulletin 757–24–0092, dated January 9, 2003; or Boeing Special Attention Service Bulletin 757–24–0095, dated January 9, 2003; as applicable; to perform the actions that are required by this AD, unless the AD specifies VerDate Aug<31>2005 15:47 Apr 10, 2006 Jkt 208001 757–24–0092, dated January 9, 2003. 757–24–0095, dated January 9, 2003. otherwise. The Director of the Federal Register approved the incorporation by reference of these documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124–2207, for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., Room PL–401, Nassif Building, Washington, DC; on the Internet at https://dms.dot.gov; or at the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741–6030, or go to https:// www.archives.gov/federal-register/cfr/ibrlocations.html. Issued in Renton, Washington, on March 31, 2006. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 06–3377 Filed 4–10–06; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2006–23840; Directorate Identifier 2005–NM–232–AD; Amendment 39–14549; AD 2006–07–22] RIN 2120–AA64 Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). AGENCY: PO 00000 Frm 00039 Fmt 4700 Sfmt 4700 ACTION: Final rule. SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146– RJ airplanes. This AD requires modifying the control cable duct on the left bulkhead structure at frame 12, and, for certain airplanes, the forward toilet bulkhead structure. This AD results from a structural analysis by the manufacturer that revealed that rapid decompression of the flight compartment with the door closed could cause structural deformation of the left bulkhead structure at frame 12, and of the attached cable duct structure. The duct structure protects the cables for the primary flight controls. We are issuing this AD to prevent deformation of the cable duct structure in the event of a rapid decompression, which could result in restriction of the primary flight controls and consequent reduced controllability of the airplane. DATES: This AD becomes effective May 16, 2006. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in the AD as of May 16, 2006. ADDRESSES: You may examine the AD docket on the Internet at https:// dms.dot.gov or in person at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., Nassif Building, Room PL–401, Washington, DC. Contact British Aerospace Regional Aircraft American Support, 13850 Mclearen Road, Herndon, Virginia 20171, for service information identified in this AD. E:\FR\FM\11APR1.SGM 11APR1 18200 Federal Register / Vol. 71, No. 69 / Tuesday, April 11, 2006 / Rules and Regulations Dan Rodina, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98055–4056; telephone (425) 227–2125; fax (425) 227–1149. FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: Examining the Docket You may examine the airworthiness directive (AD) docket on the Internet at https://dms.dot.gov or in person at the Docket Management Facility office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Management Facility office (telephone (800) 647–5227) is located on the plaza level of the Nassif Building at the street address stated in the ADDRESSES section. Discussion The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to certain BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ airplanes. That NPRM was published in the Federal Register on February 9, 2006 (71 FR 6681). That NPRM proposed to require modifying the control cable duct on the left bulkhead structure at frame 12, and, for certain airplanes, the forward toilet bulkhead structure. Comments We provided the public the opportunity to participate in the development of this AD. We received no comments on the NPRM or on the determination of the cost to the public. Conclusion We have carefully reviewed the available data and determined that air safety and the public interest require adopting the AD as proposed. wwhite on PROD1PC61 with NOTICES Costs of Compliance This AD affects about 19 airplanes of U.S. registry. The modification specified in Part 1 of the service bulletin will take about 21 work hours per airplane, at an average labor rate of $65 per work hour. Required parts will be free of charge. Based on these figures, the estimated cost of the AD is $1,365 per airplane. The modification specified in Part 2 of the service bulletin will take about 5 work hours per airplane, at an average labor rate of $65 per work hour. Required parts will be free of charge. Based on these figures, the estimated cost of the AD is $325 per airplane. VerDate Aug<31>2005 16:30 Apr 10, 2006 Jkt 208001 Authority for This Rulemaking Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, Section 106, describes the authority of the FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope of the Agency’s authority. We are issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701, ‘‘General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings We have determined that this AD will not have federalism implications under Executive Order 13132. This AD 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. For the reasons discussed above, I certify that this AD: (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. We prepared a regulatory evaluation of the estimated costs to comply with this AD and placed it in the AD docket. See the ADDRESSES section for a location to examine the regulatory evaluation. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: I PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: I PO 00000 Frm 00040 Fmt 4700 Sfmt 4700 Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The Federal Aviation Administration (FAA) amends § 39.13 by adding the following new airworthiness directive (AD): I 2006–07–22 BAE Systems (Operations) Limited (Formerly British Aerospace Regional Aircraft): Amendment 39– 14549. Docket No. FAA–2006–23840; Directorate Identifier 2005–NM–232–AD. Effective Date (a) This AD becomes effective May 16, 2006. Affected ADs (b) None. Applicability (c) This AD applies to BAE Systems (Operations) Limited Model BAe 146–100A, –200A, and –300A series airplanes, and Model Avro 146–RJ70A, 146–RJ85A, and 146–RJ100A airplanes; certificated in any category; as identified in BAE Systems (Operations) Limited Modification Service Bulletin SB.25–459–36241A, Revision 1, dated March 30, 2005. Unsafe Condition (d) This AD results from a structural analysis by the manufacturer which revealed that rapid decompression of the flight compartment with the door closed could cause structural deformation of the left bulkhead structure at frame 12, and of the attached cable duct structure. The duct structure protects the cables for the primary flight controls. We are issuing this AD to prevent deformation of the cable duct structure in the event of a rapid decompression, which could result in restriction of the primary flight controls and consequent reduced controllability of the airplane. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Modification (f) Within 9 months after the effective date of this AD: Do the actions specified in either paragraph (f)(1) or (f)(2) of this AD by doing all the applicable actions specified in the Accomplishment Instructions of BAE Systems (Operations) Limited Modification Service Bulletin SB.25–459–36241A, Revision 1, dated March 30, 2005. (1) For airplanes on which BAE Modification HCM50303C has been installed, but on which BAE Modification HCM30033E, HCM30033F, HCM30033G, or HCM30033N has not been installed: Modify the control cable duct on the left bulkhead structure at frame 12 in accordance with Part 1 of the Accomplishment Instructions of the service bulletin. (2) For airplanes on which BAE Modification HCM50303C has been installed, and on which BAE Modification HCM30033E, HCM30033F, HCM30033G, or E:\FR\FM\11APR1.SGM 11APR1 Federal Register / Vol. 71, No. 69 / Tuesday, April 11, 2006 / Rules and Regulations HCM30033N has also been installed: Modify the control cable duct on the left bulkhead structure at frame 12 and the forward toilet bulkhead structure in accordance with Parts 1 and 2 of the Accomplishment Instructions of the service bulletin. Modifications Accomplished According to Previous Issue of Service Bulletin (g) Modifications accomplished before the effective date of this AD in accordance with BAE Systems (Operations) Limited Modification Service Bulletin SB.25–459– 36241A, dated July 22, 2004, are considered acceptable for compliance with the corresponding action specified in this AD. Alternative Methods of Compliance (AMOCs) (h)(1) The Manager, International Branch, ANM–116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Related Information (i) British airworthiness directive G–2005– 0026, dated September 21, 2005, also addresses the subject of this AD. Material Incorporated by Reference wwhite on PROD1PC61 with NOTICES (j) You must use BAE Systems (Operations) Limited Modification Service Bulletin SB.25– 459–36241A, Revision 1, dated March 30, 2005, to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference of this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact British Aerospace Regional Aircraft American Support, 13850 Mclearen Road, Herndon, Virginia 20171, for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., Room PL–401, Nassif Building, Washington, DC; on the Internet at https:// dms.dot.gov; or at the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741–6030, or go to https://www.archives.gov/ federal_register/code_of_federal_regulations/ ibr_locations.html. Issued in Renton, Washington, on March 30, 2006. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 06–3379 Filed 4–10–06; 8:45 am] BILLING CODE 4910–13–P VerDate Aug<31>2005 15:47 Apr 10, 2006 Jkt 208001 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2005–20797; Directorate Identifier 2004–NM–256–AD; Amendment 39–14552; AD 2006–07–25] RIN 2120–AA64 Airworthiness Directives; McDonnell Douglas Model DC–8–11, DC–8–12, DC–8–21, DC–8–31, DC–8–32, DC–8– 33, DC–8–41, DC–8–42, and DC–8–43 Airplanes; Model DC–8F–54 and DC– 8F–55 Airplanes; Model DC–8–50, –60, –60F, –70, and –70F Series Airplanes; Model DC–9–10, –20, –30, –40, and –50 Series Airplanes; Model DC–9–81 (MD– 81), DC–9–82 (MD–82), DC–9–83 (MD– 83), and DC–9–87 (MD–87) Airplanes; and Model MD–88 Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: The FAA is superseding an existing airworthiness directive (AD), which applies to certain McDonnell Douglas airplanes, as listed above. That AD currently requires an initial general visual or dye penetrant inspection, repetitive dye penetrant inspections, and replacement, as necessary, of the rudder pedal bracket. This new AD also requires, for certain airplanes, replacing the rudder pedal bracket assemblies with new, improved parts, which terminates the repetitive inspections. This AD results from a report of numerous cracked rudder pedal brackets found during inspections of certain affected airplanes. We are issuing this AD to prevent failure of the rudder pedal bracket assembly, which could result in the loss of rudder and braking control at either the captain’s or first officer’s position. DATES: This AD becomes effective May 16, 2006. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of May 16, 2006. ADDRESSES: You may examine the AD docket on the Internet at https:// dms.dot.gov or in person at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., Nassif Building, room PL–401, Washington, DC. Contact Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1–L5A SUMMARY: PO 00000 Frm 00041 Fmt 4700 Sfmt 4700 18201 (D800–0024), for service information identified in this AD. FOR FURTHER INFORMATION CONTACT: Wahib Mina, Aerospace Engineer, Airframe Branch, ANM–120L, FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California 90712–4137; telephone (562) 627–5324; fax (562) 627–5210. SUPPLEMENTARY INFORMATION: Examining the Docket You may examine the airworthiness directive (AD) docket on the Internet at https://dms.dot.gov or in person at the Docket Management Facility office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Management Facility office (telephone (800) 647–5227) is located on the plaza level of the Nassif Building at the street address stated in the ADDRESSES section. Discussion The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that supersedes AD 89–14–02, amendment 39–6245 (54 FR 27156, June 28, 1989). The existing AD applies to certain McDonnell Douglas Model DC–8–11, DC–8–12, DC–8–21, DC–8–31, DC–8–32, DC–8–33, DC–8–41, DC–8–42, and DC– 8–43 airplanes; Model DC–8F–54 and DC–8F–55 airplanes; and Model DC–8– 50, –60, –60F, –70, and –70F series airplanes (hereafter referred to as DC–8 airplanes). The existing AD also applies to McDonnell Douglas Model DC–9–10, –20, –30, –40, and –50 series airplanes; Model DC–9–81 (MD–81), DC–9–82 (MD–82), DC–9–83 (MD–83), and DC–9– 87 (MD–87) airplanes; and Model MD– 88 airplanes (hereafter referred to as DC–9/MD–80 airplanes). That NPRM was published in the Federal Register on April 5, 2005 (70 FR 17216). That NPRM proposed to continue to require an initial general visual or dye penetrant inspection, repetitive dye penetrant inspections, and replacement, as necessary, of the rudder pedal bracket. That NPRM also proposed to require, for certain airplanes, replacing the rudder pedal bracket assemblies with new, improved parts, which would terminate the repetitive inspections. Comments We provided the public the opportunity to participate in the development of this AD. We have considered the comments that have been received on the NPRM. E:\FR\FM\11APR1.SGM 11APR1

Agencies

[Federal Register Volume 71, Number 69 (Tuesday, April 11, 2006)]
[Rules and Regulations]
[Pages 18199-18201]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 06-3379]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-23840; Directorate Identifier 2005-NM-232-AD; 
Amendment 39-14549; AD 2006-07-22]
RIN 2120-AA64


Airworthiness Directives; BAE Systems (Operations) Limited Model 
BAe 146 and Model Avro 146-RJ Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain BAE Systems (Operations) Limited Model BAe 146 and Model Avro 
146-RJ airplanes. This AD requires modifying the control cable duct on 
the left bulkhead structure at frame 12, and, for certain airplanes, 
the forward toilet bulkhead structure. This AD results from a 
structural analysis by the manufacturer that revealed that rapid 
decompression of the flight compartment with the door closed could 
cause structural deformation of the left bulkhead structure at frame 
12, and of the attached cable duct structure. The duct structure 
protects the cables for the primary flight controls. We are issuing 
this AD to prevent deformation of the cable duct structure in the event 
of a rapid decompression, which could result in restriction of the 
primary flight controls and consequent reduced controllability of the 
airplane.

DATES: This AD becomes effective May 16, 2006.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of May 16, 2006.

ADDRESSES: You may examine the AD docket on the Internet at https://
dms.dot.gov or in person at the Docket Management Facility, U.S. 
Department of Transportation, 400 Seventh Street SW., Nassif Building, 
Room PL-401, Washington, DC.
    Contact British Aerospace Regional Aircraft American Support, 13850 
Mclearen Road, Herndon, Virginia 20171, for service information 
identified in this AD.

[[Page 18200]]


FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425) 
227-2125; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Examining the Docket

    You may examine the airworthiness directive (AD) docket on the 
Internet at https://dms.dot.gov or in person at the Docket Management 
Facility office between 9 a.m. and 5 p.m., Monday through Friday, 
except Federal holidays. The Docket Management Facility office 
(telephone (800) 647-5227) is located on the plaza level of the Nassif 
Building at the street address stated in the ADDRESSES section.

Discussion

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 to include an AD that would apply to certain BAE Systems 
(Operations) Limited Model BAe 146 and Model Avro 146-RJ airplanes. 
That NPRM was published in the Federal Register on February 9, 2006 (71 
FR 6681). That NPRM proposed to require modifying the control cable 
duct on the left bulkhead structure at frame 12, and, for certain 
airplanes, the forward toilet bulkhead structure.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We received no comments on the NPRM or on the 
determination of the cost to the public.

Conclusion

    We have carefully reviewed the available data and determined that 
air safety and the public interest require adopting the AD as proposed.

Costs of Compliance

    This AD affects about 19 airplanes of U.S. registry.
    The modification specified in Part 1 of the service bulletin will 
take about 21 work hours per airplane, at an average labor rate of $65 
per work hour. Required parts will be free of charge. Based on these 
figures, the estimated cost of the AD is $1,365 per airplane.
    The modification specified in Part 2 of the service bulletin will 
take about 5 work hours per airplane, at an average labor rate of $65 
per work hour. Required parts will be free of charge. Based on these 
figures, the estimated cost of the AD is $325 per airplane.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, Section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We have determined that this AD will not have federalism 
implications under Executive Order 13132. This AD 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.
    For the reasons discussed above, I certify that this AD:
    (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.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this AD and placed it in the AD docket. See the ADDRESSES 
section for a location to examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
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]

0
2. The Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

2006-07-22 BAE Systems (Operations) Limited (Formerly British 
Aerospace Regional Aircraft): Amendment 39-14549. Docket No. FAA-
2006-23840; Directorate Identifier 2005-NM-232-AD.

Effective Date

    (a) This AD becomes effective May 16, 2006.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to BAE Systems (Operations) Limited Model 
BAe 146-100A, -200A, and -300A series airplanes, and Model Avro 146-
RJ70A, 146-RJ85A, and 146-RJ100A airplanes; certificated in any 
category; as identified in BAE Systems (Operations) Limited 
Modification Service Bulletin SB.25-459-36241A, Revision 1, dated 
March 30, 2005.

Unsafe Condition

    (d) This AD results from a structural analysis by the 
manufacturer which revealed that rapid decompression of the flight 
compartment with the door closed could cause structural deformation 
of the left bulkhead structure at frame 12, and of the attached 
cable duct structure. The duct structure protects the cables for the 
primary flight controls. We are issuing this AD to prevent 
deformation of the cable duct structure in the event of a rapid 
decompression, which could result in restriction of the primary 
flight controls and consequent reduced controllability of the 
airplane.

Compliance

    (e) You are responsible for having the actions required by this 
AD performed within the compliance times specified, unless the 
actions have already been done.

Modification

    (f) Within 9 months after the effective date of this AD: Do the 
actions specified in either paragraph (f)(1) or (f)(2) of this AD by 
doing all the applicable actions specified in the Accomplishment 
Instructions of BAE Systems (Operations) Limited Modification 
Service Bulletin SB.25-459-36241A, Revision 1, dated March 30, 2005.
    (1) For airplanes on which BAE Modification HCM50303C has been 
installed, but on which BAE Modification HCM30033E, HCM30033F, 
HCM30033G, or HCM30033N has not been installed: Modify the control 
cable duct on the left bulkhead structure at frame 12 in accordance 
with Part 1 of the Accomplishment Instructions of the service 
bulletin.
    (2) For airplanes on which BAE Modification HCM50303C has been 
installed, and on which BAE Modification HCM30033E, HCM30033F, 
HCM30033G, or

[[Page 18201]]

HCM30033N has also been installed: Modify the control cable duct on 
the left bulkhead structure at frame 12 and the forward toilet 
bulkhead structure in accordance with Parts 1 and 2 of the 
Accomplishment Instructions of the service bulletin.

Modifications Accomplished According to Previous Issue of Service 
Bulletin

    (g) Modifications accomplished before the effective date of this 
AD in accordance with BAE Systems (Operations) Limited Modification 
Service Bulletin SB.25-459-36241A, dated July 22, 2004, are 
considered acceptable for compliance with the corresponding action 
specified in this AD.

Alternative Methods of Compliance (AMOCs)

    (h)(1) The Manager, International Branch, ANM-116, Transport 
Airplane Directorate, FAA, has the authority to approve AMOCs for 
this AD, if requested in accordance with the procedures found in 14 
CFR 39.19.
    (2) Before using any AMOC approved in accordance with Sec.  
39.19 on any airplane to which the AMOC applies, notify the 
appropriate principal inspector in the FAA Flight Standards 
Certificate Holding District Office.

Related Information

    (i) British airworthiness directive G-2005-0026, dated September 
21, 2005, also addresses the subject of this AD.

Material Incorporated by Reference

    (j) You must use BAE Systems (Operations) Limited Modification 
Service Bulletin SB.25-459-36241A, Revision 1, dated March 30, 2005, 
to perform the actions that are required by this AD, unless the AD 
specifies otherwise. The Director of the Federal Register approved 
the incorporation by reference of this document in accordance with 5 
U.S.C. 552(a) and 1 CFR part 51. Contact British Aerospace Regional 
Aircraft American Support, 13850 Mclearen Road, Herndon, Virginia 
20171, for a copy of this service information. You may review copies 
at the Docket Management Facility, U.S. Department of 
Transportation, 400 Seventh Street SW., Room PL-401, Nassif 
Building, Washington, DC; on the Internet at https://dms.dot.gov; or 
at the National Archives and Records Administration (NARA). For 
information on the availability of this material at the NARA, call 
(202) 741-6030, or go to https://www.archives.gov/federal_register/
code_of_federal_regulations/ibr_locations.html.

    Issued in Renton, Washington, on March 30, 2006.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 06-3379 Filed 4-10-06; 8:45 am]
BILLING CODE 4910-13-P

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.