Airworthiness Directives; Raytheon (Beech) Model 400, 400A, and 400T Series Airplanes; and Raytheon (Mitsubishi) Model MU-300 Airplanes

[Federal Register Volume 71, Number 195 (Tuesday, October 10, 2006)]
[Rules and Regulations]
[Pages 59363-59366]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E6-16552]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2006-26004; Directorate Identifier 2006-NM-212-AD; 
Amendment 39-14785; AD 2006-21-02]
RIN 2120-AA64


Airworthiness Directives; Raytheon (Beech) Model 400, 400A, and 
400T Series Airplanes; and Raytheon (Mitsubishi) Model MU-300 Airplanes

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

ACTION: Final rule; request for comments.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
Raytheon (Beech) Model 400, 400A, and 400T series airplanes; and 
Raytheon (Mitsubishi) Model MU-300 airplanes. This AD requires revising 
the airplane flight manual to modify the Operating Limitations, 
Abnormal Procedures, and Normal Procedures, as applicable, for flight 
in icing conditions. This AD results from multiple reports of high-
altitude, dual-engine flameouts on airplanes operating in certain 
meteorological conditions. We are issuing this AD to advise the 
flightcrew that the buildup of ice on certain internal areas of the 
engine could result in a dual-engine flameout and what action they must 
take to avoid this hazard.

DATES: This AD becomes effective October 25, 2006.
    The Director of the Federal Register approved the incorporation by 
reference

[[Page 59364]]

of certain publications listed in the AD as of October 25, 2006.
    We must receive comments on this AD by December 11, 2006.

ADDRESSES: Use one of the following addresses to submit comments on 
this AD.
    <bullet> DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
    <bullet> Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your 
comments electronically.
    <bullet> Mail: Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street SW., Nassif Building, Room PL-401, 
Washington, DC 20590.
    <bullet> Fax: (202) 493-2251.
    <bullet> Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street SW., Washington, DC, between 9 a.m. 
and 5 p.m., Monday through Friday, except Federal holidays.
    Contact Raytheon Aircraft Company, Department 62, P.O. Box 85, 
Wichita, Kansas 67201-0085, for service information identified in this 
AD.

FOR FURTHER INFORMATION CONTACT: Steve Roell, Aerospace Engineer, 
Flight Test and Program Management Branch, ACE-117W, FAA, Wichita 
Aircraft Certification Office, 1801 Airport Road, room 100, Mid-
Continent Airport, Wichita, Kansas 67209; telephone (316) 946-4146; fax 
(316) 946-4107.

SUPPLEMENTARY INFORMATION: 

Discussion

    We have received a report that, on June 14, 2006, a Raytheon Model 
400A (Beechjet 400A) airplane lost all power while in cruise flight 
near Norfolk, Virginia. Both engines restarted and the airplane landed 
without further incident. The pilots reported that the airplane was in 
clouds at the time of the incident. Due to concern about entering a 
cloud deck, the pilots decided to turn on the engine anti-ice. The 
pilots followed the instruction in the airplane flight manual (AFM) to 
reduce power before activating anti-ice. Both engines flamed out 
simultaneously as soon as they retarded the throttles but before they 
could turn on the engine anti-ice.
    We have also received other reports of engine failure on Model 
Raytheon 400A (Beechjet 400A) airplanes operating in certain 
meteorological conditions. Further analysis by the engine manufacturer 
demonstrated that, with engine anti-ice off, conditions along the 
engine internal flow path can allow ice crystals to stick on warm 
surfaces and accrete rapidly in areas like the leading edges of the 
front inner compressor stator of the engine. The resulting ice buildup 
could result in a compressor surge or flameout and consequent loss of 
engine power. This condition, if not corrected, could result in a dual-
engine flameout.

Relevant Service Information

    We have reviewed the Raytheon temporary changes (TCs), all dated 
September 15, 2006, to the AFMs specified in the following table. The 
TCs describe revisions to the AFMs to modify the Operating Limitations, 
Abnormal Procedures, and Normal Procedures, as applicable, for flight 
in icing conditions. Accomplishing the revisions to the AFMs as 
specified in the TCs is intended to adequately address the unsafe 
condition.

                                           Raytheon Temporary Changes
----------------------------------------------------------------------------------------------------------------
 For Raytheon airplane model--         Use Raytheon TC--            Subject title--       To the  Raytheon AFM--
----------------------------------------------------------------------------------------------------------------
MU-300 (Diamond I).............  MR-0460TC5                     In Flight Operation of   MR-0460
                                                                 Ice Protection Systems.
MU-300 (Diamond IA)............  MR-0873TC5                     In Flight Operation of   MR-0873
                                                                 Ice Protection Systems.
400 (Beechjet 400).............  128-590001-13BTC6              Anti/Deice Systems (In   128-590001-13B
                                                                 Flight Operation).
400A (Beechjet 400A)...........  128-590001-91TC12              Anti/Deice Systems (In   128-590001-91
                                                                 Flight Operation).
400A (Beechjet 400A)...........  128-590001-95TC13              Anti/Deice Systems (In   128-590001-95
                                                                 Flight Operation).
400A (Beechjet 400A)...........  128-590001-107TC11             Anti/Deice Systems (In   128-590001-107
                                                                 Flight Operation).
400A (Beechjet 400A)...........  128-590001-109TC12             Anti/Deice Systems (In   128-590001-109
                                                                 Flight Operation).
400A (Beechjet 400A), Hawker     128-590001-167TC18             Anti/Deice Systems (In   128-590001-167
 400XP (Model 400A).                                             Flight Operation).
400A (Beechjet 400A)...........  128-590001-169TC9              Anti/Deice Systems (In   128-590001-169
                                                                 Flight Operation).
400T (Beechjet 400T)...........  132-590002-5TC4                Anti/Deice Systems (In   132-590002-5
                                                                 Flight Operation).
400T (Beechjet 400T (TX))......  134-590002-1TC4                Anti/Deice Systems (In   134-590002-1B1
                                                                 Flight Operation).
----------------------------------------------------------------------------------------------------------------

FAA's Determination and Requirements of This AD

    The unsafe condition described previously is likely to exist or 
develop on other airplanes of the same type design. For this reason, we 
are issuing this AD to advise the flightcrew that the buildup of ice on 
certain internal areas of the engine could result in a dual-engine 
flameout and what action they must take to avoid this hazard. This AD 
requires accomplishing the actions specified in the service information 
described previously.

FAA's Determination of the Effective Date

    Since an unsafe condition exists that requires the immediate 
adoption of this AD, we have found that notice and opportunity for 
public comment before issuing this AD are impracticable, and that good 
cause exists to make this AD effective in less than 30 days.

Comments Invited

    This AD is a final rule that involves requirements that affect 
flight safety and was not preceded by notice and an opportunity for 
public comment; however, we invite you to submit any relevant written 
data, views, or arguments regarding this AD. Send your comments to an 
address listed in the ADDRESSES section. Include ``Docket No. FAA-2006-
26004; Directorate Identifier 2006-NM-212-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the AD that might 
suggest a need to modify it.
    We will post all comments we receive, without change, to http://dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this AD. Using the search function of that web 
site, anyone can find and read the comments in any

[[Page 59365]]

of our dockets, including the name of the individual who sent the 
comment (or signed the comment on behalf of an association, business, 
labor union, etc.). You may review the DOT's complete Privacy Act 
Statement in the Federal Register published on April 11, 2000 (65 FR 
19477-78), or you may visit http://dms.dot.gov.

Examining the Docket

    You may examine the AD docket on the Internet at http://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 DOT 
street address stated in the ADDRESSES section. Comments will be 
available in the AD docket shortly after the Docket Management System 
receives them.

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 the regulation:
    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 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):

2006-21-02 Raytheon Aircraft Company (Formerly Beech): Amendment 39-
14785. Docket No. FAA-2006-26004; Directorate Identifier 2006-NM-
212-AD.

Effective Date

    (a) This AD becomes effective October 25, 2006.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to all Raytheon (Beech) Model 400, 400A, and 
400T series airplanes; and Raytheon (Mitsubishi) Model MU-300 
airplanes; certificated in any category.

Unsafe Condition

    (d) This AD results from multiple reports of high-altitude, 
dual-engine flameout on airplanes operating in certain 
meteorological conditions. We are issuing this AD to advise the 
flightcrew that the buildup of ice on certain internal areas of the 
engine could result in a dual-engine flameout and what action they 
must take to avoid this hazard.

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.

Revisions to the Airplane Flight Manual (AFM)

    (f) Within 7 days after the effective date of this AD, revise 
the Operating Limitations, Abnormal Procedures, and Normal 
Procedures sections, as applicable, of the applicable AFM to include 
the information in the Raytheon temporary changes (TCs), all dated 
September 15, 2006, as specified in Table 1 of this AD.

    Note 1: The actions required by paragraph (f) of this AD may be 
done by inserting a copy of the applicable TC into the applicable 
AFM. When the information in the applicable TC has been included in 
the AFM, the general revisions may be inserted in the AFM and the 
copy of the applicable TC may be removed, provided the relevant 
information in the general revisions is identical to that in the 
applicable TC.


                                                               Table 1.--Temporary Changes
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                     Which is identified in
   For Raytheon airplane model--      the Raytheon TC as--           Use Raytheon TC--                Subject Title--           To the Raytheon AFM--
--------------------------------------------------------------------------------------------------------------------------------------------------------
MU-300.............................  MU-300 Diamond I......  MR-0460TC5                         In Flight Operation of Ice   MR-0460
                                                                                                 Protection Systems.
MU-300.............................  MU-300 Diamond IA.....  MR-0873TC5                         In Flight Operation of Ice   MR-0873
                                                                                                 Protection Systems.
400................................  Beechjet 400..........  128-590001-13BTC6                  Anti/Deice Systems (In       128-590001-13B
                                                                                                 Flight Operation).
400A...............................  Beechjet (Model 400A).  128-590001-91TC12                  Anti/Deice Systems (In       128-590001-91
                                                                                                 Flight Operation).
400A...............................  Beechjet (Model 400A).  128-590001-95TC13                  Anti/Deice Systems (In       128-590001-95
                                                                                                 Flight Operation).
400A...............................  Beechjet (Model 400A).  128-590001-107TC11                 Anti/Deice Systems (In       128-590001-107
                                                                                                 Flight Operation).
400A...............................  Beechjet (Model 400A).  128-590001-109TC12                 Anti/Deice Systems (In       128-590001-109
                                                                                                 Flight Operation).
400A...............................  Beechjet (Model 400A),  128-590001-167TC18                 Anti/Deice Systems (In       128-590001-167
                                     Hawker 400XP (Model                                         Flight Operation).
                                      400A).
400A...............................  Beechjet (Model 400A).  128-590001-169TC9                  Anti/Deice Systems (In       128-590001-169
                                                                                                 Flight Operation).
400T...............................  Beechjet (Model 400T).  132-590002-5TC4                    Anti/Deice Systems (In       132-590002-5
                                                                                                 Flight Operation).

[[Page 59366]]

 
400T...............................  Beechjet Model 400T     134-590002-1TC4                    Anti/Deice Systems (In       134-590002-1B1
                                      (TX).                                                      Flight Operation).
--------------------------------------------------------------------------------------------------------------------------------------------------------

Alternative Methods of Compliance (AMOCs)

    (g)(1) The Manager, Wichita Aircraft Certification Office, 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.

Material Incorporated by Reference

    (h) You must use the service information specified in Table 2 of 
this AD 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 these documents in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Raytheon 
Aircraft Company, Department 62, P.O. Box 85, Wichita, Kansas 67201-
0085, 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 http://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 http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

                                  Table 2.--Material Incorporated by Reference
----------------------------------------------------------------------------------------------------------------
                                                                                To the Raytheon airplane flight
       Raytheon temporary change--                      Dated--                            manual--
----------------------------------------------------------------------------------------------------------------
128-590001-107TC11.......................  September 15, 2006...............  128-590001-107
128-590001-109TC12.......................  September 15, 2006...............  128-590001-109
128-590001-13BTC6........................  September 15, 2006...............  128-590001-13B
128-590001-167TC18.......................  September 15, 2006...............  128-590001-167
128-590001-169TC9........................  September 15, 2006...............  128-590001-169
128-590001-91TC12........................  September 15, 2006...............  128-590001-91
128-590001-95TC13........................  September 15, 2006...............  128-590001-95
132-590002-5TC4..........................  September 15, 2006...............  132-590002-5
134-590002-1TC4..........................  September 15, 2006...............  134-590002-1B1
MR-0460TC5...............................  September 15, 2006...............  MR-0460
MR-0873TC5...............................  September 15, 2006...............  MR-0873
----------------------------------------------------------------------------------------------------------------


    Issued in Renton, Washington, on September 29, 2006.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E6-16552 Filed 10-6-06; 8:45 am]
BILLING CODE 4910-13-P

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