[Federal Register Volume 70, Number 237 (Monday, December 12, 2005)]
[Rules and Regulations]
[Pages 73351-73355]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-23773]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-20712; Directorate Identifier 2005-CE-15-AD; 
Amendment 39-14400; AD 2005-25-07]
RIN 2120-AA64


Airworthiness Directives; Raytheon Aircraft Company, Model 390, 
Premier 1 Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA adopts a new airworthiness directive (AD) for certain 
Raytheon Aircraft Company (Raytheon), Model 390, Premier 1 airplanes. 
For certain airplanes, this AD requires you (unless already done) to 
replace the plastic cover over the air conditioning motor module with a 
metallic cover and modify the air conditioning compressor motor module 
electromagnetic interference-radio frequency interference (EMI-RFI) 
filter located under the cover and reidentify the module part number. 
For all airplanes, the AD limits future installations of the cover for 
the air conditioner and the air conditioning compressor motor module. 
This AD results from reports that the plastic cover over the air 
conditioning motor module was found melted or burned and that the 
overheating of the EMI-RFI filter assembly located under the cover 
caused this damage. We are issuing this AD to prevent the melting or 
burning of the plastic cover. The burning of the plastic cover could 
result in a fire.

DATES: This AD becomes effective on January 23, 2006.
    As of January 23, 2006, the Director of the Federal Register 
approved the incorporation by reference of certain publications listed 
in the regulation.

ADDRESSES: To get the service information identified in this AD, 
contact Raytheon Aircraft Company,

[[Page 73352]]

P.O. Box 85, Wichita, Kansas 67201-0085; telephone: (800) 625-7043.
    To view the AD docket, go to the Docket Management Facility; U.S. 
Department of Transportation, 400 Seventh Street, SW., Nassif Building, 
Room PL-401, Washington, DC 20590-0001 or on the Internet at http://dms.dot.gov. The docket number is FAA-2005-20712; Directorate 
Identifier 2005-CE-15-AD.

FOR FURTHER INFORMATION CONTACT: Philip Petty, Aerospace Engineer, ACE-
119W, Wichita Aircraft Certification Office, 1801 Airport Road, Room 
100, Wichita, Kansas 67209; telephone: (316) 946-4139; facsimile: (316) 
946-4107.

SUPPLEMENTARY INFORMATION:

Discussion

    What events have caused this AD? The FAA has received reports that 
the plastic cover over the air conditioning motor module for certain 
Raytheon Aircraft Company (Raytheon), Model 390, Premier 1 airplanes 
was found melted or burned. The overheating of the electromagnetic 
interference-radio frequency interference (EMI-RFI) filter assembly 
located under the plastic cover caused this damage.
    Raytheon has developed two partial fixes that together remedy the 
problem. In February 2005, Raytheon implemented a partial fix to the 
problem with a service bulletin for the replacement of the plastic 
cover with a manufactured or a field fabricated metal cover. Raytheon, 
in June 2005, issued a service bulletin for the modification of the 
EMI-RFI filter assembly.
    What is the potential impact if FAA took no action? The burning of 
the plastic cover could result in a fire.
    Has FAA taken any action to this point? We issued 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 Model 390, Premier 1 
airplanes. This proposal was published in the Federal Register as a 
notice of proposed rulemaking (NPRM) on August 23, 2005 (70 FR 49217). 
The NPRM proposed for certain airplanes to require you (unless already 
done) to replace the plastic cover over the air conditioning motor 
module with a metallic cover and modify the air conditioning compressor 
motor module electromagnetic interference-radio frequency interference 
(EMI-RFI) filter located under the cover and reidentify the module part 
number. For all airplanes, the NPRM proposed to limit future 
installations of the cover for the air conditioner and the air 
conditioning compressor motor module.

Comments

    Was the public invited to comment? We provided the public the 
opportunity to participate in developing this AD. The following 
presents the one comment received on the proposal and FAA's response to 
the comment:

Comment Issue: Include Parts Manufacture Approval (PMA) Parts Approved 
by Identicality in the Replacement Parts

    What is the commenter's concern? The commenter, the Modification 
and Replacement Parts Association (MARPA), states:
    ``The proposed action requires replacing a plastic EMI-RFI filter 
cover with a metallic cover P/N 390-555015-0001. The problem with 
requiring the installation of a specific part number to the exclusion 
of all other part numbers is that such a requirement conflicts with 14 
CFR 21.303 (PMA).''
    The MARPA requests that the final action include the phrase ``or 
other FAA-approved equivalent part'' after the part number.
    What is FAA's response to the concern? We agree with the MARPA. The 
FAA will add the phrase ``or FAA-approved equivalent part number'', and 
add language to cover the PMA replacement parts.

Conclusion

    What is FAA's final determination on this issue? We have carefully 
reviewed the available data and determined that air safety and the 
public interest require adopting the AD as proposed except for the 
changes discussed above and minor editorial corrections. We have 
determined that these changes and minor corrections:

--Are consistent with the intent that was proposed in the NPRM for 
correcting the unsafe condition; and
--Do not add any additional burden upon the public than was already 
proposed in the NPRM.

Docket Information

    Where can I go to view the docket information? You may view the AD 
docket that contains information relating to this subject in person at 
the DMS Docket Offices between 9 a.m. and 5 p.m. (eastern time), Monday 
through Friday, except Federal holidays. The Docket Office (telephone 
1-800-647-5227) is located on the plaza level of the Department of 
Transportation Nassif Building at the street address stated in 
ADDRESSES. You may also view the AD docket on the Internet at http://dms.dot.gov.

Changes to 14 CFR Part 39--Effect on the AD

    How does the revision to 14 CFR part 39 affect this AD? On July 10, 
2002, the FAA published a new version of 14 CFR part 39 (67 FR 47997, 
July 22, 2002), which governs the FAA's AD system. This regulation now 
includes material that relates to altered products, special flight 
permits, and alternative methods of compliance. This material 
previously was included in each individual AD. Since this material is 
included in 14 CFR part 39, we will not include it in future AD 
actions.

Costs of Compliance

    How many airplanes does this AD impact? We estimate that this AD 
affects 100 airplanes in the U.S. registry.
    What is the cost impact of this AD on owners/operators of the 
affected airplanes? We estimate the following costs to do the 
replacement of the plastic cover with a new manufactured metallic cover 
(P/N 390-555015-0001 or FAA-approved equivalent part number) that you 
buy:

----------------------------------------------------------------------------------------------------------------
                                                                                  Total cost per   Total cost on
                           Labor cost                               Parts cost       airplane     U.S. operators
----------------------------------------------------------------------------------------------------------------
1 work hour x $65 = $65.........................................            $600            $665         $66,500
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do the field fabrication of the 
metallic cover (P/N 390-555015-0001 or FAA-approved equivalent part 
number) if you choose not to buy a new metallic cover and the labor for 
the replacement of the plastic cover:

[[Page 73353]]



----------------------------------------------------------------------------------------------------------------
                                                                                  Total cost per   Total cost on
                           Labor cost                               Parts cost       airplane     U.S. operators
----------------------------------------------------------------------------------------------------------------
16 work hour x $65 = $1,040.....................................             $20          $1,060        $106,000
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to modify the air conditioning 
compressor motor module EMI-RFI filter and reidentify the module part 
number:

----------------------------------------------------------------------------------------------------------------
                                                                                  Total cost per   Total cost on
                           Labor cost                               Parts cost       airplane     U.S. operators
----------------------------------------------------------------------------------------------------------------
2 work hours x $65 = $130.......................................            $600            $730         $73,000
----------------------------------------------------------------------------------------------------------------

Authority for This Rulemaking

    What authority does FAA have for issuing this rulemaking action? 
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 AD.

Regulatory Findings

    Will this AD impact various entities? 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.
    Will this AD involve a significant rule or regulatory action? 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 the 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 summary of the costs to comply with this AD (and 
other information as included in the Regulatory Evaluation) and placed 
it in the AD Docket. You may get a copy of this summary by sending a 
request to us at the address listed under ADDRESSES. Include ``Docket 
No. FAA-2005-20712; Directorate Identifier 2005-CE-15-AD'' in your 
request.

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 Federal Aviation Administration amends part 39 of the Federal 
Aviation Regulations (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. FAA amends Sec.  39.13 by adding a new AD to read as follows:

2005-25-07 Raytheon Aircraft Company: Amendment 39-14400; Docket No. 
FAA-2005-20712; Directorate Identifier 2005-CE-15-AD.

When Does This AD Become Effective?

    (a) This AD becomes effective on January 23, 2006.

What Other ADs Are Affected By This Action?

    (b) None.

What Airplanes Are Affected by This AD?

    (c) This AD applies to the following airplane models and serial 
numbers that are certificated in any category:
    (1) Group 1: Raytheon Aircraft Company, Model 390, Premier 1 
Airplanes, serial numbers RB-1, RB-4 through RB-101, RB-103 through 
RB-119, and RB-121, that have not replaced the plastic cover over 
the compressor motor module with a metallic one (part number (P/N) 
390-555015-0001 or FAA-approved equivalent part number).
    (2) Group 2: Raytheon Aircraft Company, Model 390, Premier 1 
Airplanes, serial numbers RB-1, RB-4 through RB-101, RB-103 through 
RB-119, and RB-121, that have installed the metallic cover (P/N 390-
555015-0001 or FAA-approved equivalent part number).
    (3) Group 3: Raytheon Aircraft Company, Model 390, Premier 1 
Airplanes, serial numbers RB-120 and RB-122 through RB-129.

What Is the Unsafe Condition Presented in This AD?

    (d) This AD is the result of reports that the plastic cover over 
the air conditioning motor module was found melted or burned and 
that the overheating of the electromagnetic interference-radio 
frequency interference (EMI-RFI) filter assembly located under the 
cover caused this damage. The actions specified in this AD are 
intended to prevent the melting or burning of the plastic cover. The 
burning of the plastic cover could result in a fire.

    Note: 14 CFR 21.303 allows for replacement parts through parts 
manufacturer approval (PMA). The phrase ``or FAA-approved equivalent 
part number'' in paragraphs (e), (f), and (g) of this AD is intended 
to signify those parts that are PMA parts approved through 
identicality to the design of the replacement parts to correct the 
unsafe condition. Equivalent replacement parts to correct the unsafe 
condition under PMA (other than identicality) may also be installed 
provided they meet current airworthiness standards, which include 
those actions cited in this AD.

What Must I Do To Address This Problem?

    (e) What actions must I do to address this problem for Group 1 
airplanes? To address this problem for Group 1 airplanes, you must 
do the following:

[[Page 73354]]



------------------------------------------------------------------------
           Actions                 Compliance            Procedures
------------------------------------------------------------------------
(1) Air Conditioning Motor    Within 30 days after  Follow Raytheon
 Module Cover Replacement:     January 23, 2006      Aircraft Company
 Replace the plastic cover     (the effective date   Service Bulletin
 over the air conditioning     of this AD), unless   No. SB 21-3715,
 motor module with a new or    already done.         dated February
 fabricated metallic cover.                          2005.
 Use Raytheon part number (P/
 N) 390-555015-0001 or an
 FAA-approved equivalent
 part number.
(2) Air Conditioning          Within 30 days after  Follow Raytheon
 Compressor Motor Module EMI-  January 23, 2006      Aircraft Company
 RFI Filter Modification:      (the effective date   Service Bulletin
 Modify the air conditioning   of this AD), unless   No. SB 21-3733,
 motor module EMI-RFI filter   already done.         dated June 2005,
 and reidentify the module                           and Enviro Systems,
 part number with a P/N 390-                         Inc. Service
 385026-0003 module.                                 Bulletin No. SB05-
                                                     101, Revision B,
                                                     dated April 27,
                                                     2005.
(3) Future Installations--    As of January 23,     Follow Raytheon
 Cover for Air Conditioner:    2006 (the effective   Aircraft Company
 You must only install a       date of this AD).     Service Bulletin
 metal cover, P/N 390-555015-                        No. SB 21-3715,
 0001 or FAA-approved                                dated February
 equivalent part number,                             2005.
 over the air conditioning
 motor module. This is
 mandatory equipment.
(4) Future Installations--    As of January 23,     Not Applicable.
 Air Conditioning Compressor   2006 (the effective
 Motor Module: Do not          date of this AD).
 install any compressor
 motor module, P/N 390-
 385026-0001 or FAA-approved
 equivalent part number.
------------------------------------------------------------------------

    (f) What actions must I do to address this problem for Group 2 
airplanes? To address this problem for Group 2 airplanes, you must 
do the following:

------------------------------------------------------------------------
           Actions                 Compliance            Procedures
------------------------------------------------------------------------
(1) Air Conditioning          Within 60 days after  Follow Raytheon
 Compressor Motor Module EMI-  January 23, 2006      Aircraft Company
 RFI Filter Modification:      (the effective date   Service Bulletin
 Modify the air conditioning   of this AD), unless   No. SB 21-3733,
 motor module EMI-RFI filter   already done.         dated June 2005;
 and reidentify the module                           and Enviro Systems
 part number with a P/N 390-                         Inc. Service
 385026-0003 module.                                 Bulletin No. SB05-
                                                     101, Revision B,
                                                     dated April 27,
                                                     2005.
(2) Future Installations--    As of January 23,     Follow Raytheon
 Cover for Air Conditioner:    2006 (the effective   Aircraft Company
 You must only install a       date of this AD).     Service Bulletin
 metal cover, P/N 390-555015-                        No. SB 21-3715,
 0001 or FAA-approved                                dated February
 equivalent part number,                             2005.
 over the air conditioning
 motor module. This is
 mandatory equipment.
(3) Future Installations--    As of January 23,     Not Applicable.
 Air Conditioning Compressor   2006 (the effective
 Motor Module: Do not          date of this AD).
 install any compressor
 motor module, P/N 390-
 385026-0001 or FAA-approved
 equivalent part.
------------------------------------------------------------------------

    (g) What actions must I do to address this problem for Group 3 
airplanes? To address this problem for Group 3 airplanes, you must 
do the following:

------------------------------------------------------------------------
           Actions                 Compliance            Procedures
------------------------------------------------------------------------
(1) Air Conditioning          Within 60 days after  Follow Raytheon
 Compressor Motor Module EMI-  January 23, 2006      Aircraft Company
 RFI Filter Modification:      (the effective date   Service Bulletin
 Modify the air conditioning   of this AD), unless   No. SB 21-3733,
 motor module EMI-RFI filter   already done.         dated June 2005;
 and reidentify the module                           and Enviro Systems
 part number with a P/N 390-                         Inc. Service
 385026-0003 module.                                 Bulletin No. SB05-
                                                     101, Revision B,
                                                     dated April 27,
                                                     2005.
(2) Future Installations--    As of January 23,     Follow Raytheon
 Cover for Air Conditioner:    2006, (the            Aircraft Company
 You must only install a       effective dae of      Service Bulletin
 metal cover, P/N 390-555015-  this AD).             No. SB 21-3715,
 0001 or FAA-approved                                dated February
 equivalent part number,                             2005.
 over the air conditioning
 motor module. This is
 mandatory equipment.
(3) Future Installations--    As of January 23,     Not Applicable.
 Air Conditioning Compressor   2006 (the effective
 Motor Module: Do not          date of this AD).
 install any compressor
 motor module, P/N 390-
 385026-0001 or FAA-approved
 equivalent part number.
------------------------------------------------------------------------


[[Page 73355]]

May I Request an Alternative Method of Compliance?

    (h) You may request a different method of compliance or a 
different compliance time for this AD by following the procedures in 
14 CFR 39.19. Unless FAA authorizes otherwise, send your request to 
your principal inspector. The principal inspector may add comments 
and will send your request to the Manager, Wichita Aircraft 
Certification Office (ACO), FAA. For information on any already 
approved alternative methods of compliance, contact Philip Petty, 
Aerospace Engineer, ACE-119W, Wichita ACO, 1801 Airport Road, Room 
100, Wichita, Kansas 67209; telephone: (316) 946-4139; facsimile: 
(316) 946-4107.

Does This AD Incorporate Any Material by Reference?

    (i) You must do the actions required by this AD following the 
instructions in Raytheon Aircraft Company Service Bulletin No. SB 
21-3715, dated February 2005; Raytheon Aircraft Company Service 
Bulletin No. SB 21-3733, dated June 2005; and Enviro Systems Inc. 
Service Bulletin No. SB05-101, Revision B, dated April 27, 2005. The 
Director of the Federal Register approved the incorporation by 
reference of these service bulletins in accordance with 5 U.S.C. 
552(a) and 1 CFR part 51. To get a copy of this service information, 
contact Raytheon Aircraft Company, P.O. Box 85, Wichita, Kansas 
67201-0085; telephone: (800) 625-7043. To review copies of this 
service information, go to the National Archives and Records 
Administration (NARA). For information on the availability of this 
material at NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html or call (202) 
741-6030. To view the AD docket, go to the Docket Management 
Facility; U.S. Department of Transportation, 400 Seventh Street, 
SW., Nassif Building, Room PL-401, Washington, DC 20590-001 or on 
the Internet at http://dms.dot.gov. The docket number is FAA-2005-
20712; Directorate Identifier 2005-CE-15-AD.

    Issued in Kansas City, Missouri, on November 30, 2005.
David R. Showers,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-23773 Filed 12-9-05; 8:45 am]
BILLING CODE 4910-13-P