[Federal Register Volume 65, Number 39 (Monday, February 28, 2000)]
[Rules and Regulations]
[Pages 10377-10379]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 00-3532]



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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 98-NM-312-AD; Amendment 39-11568; AD 2000-03-09]
RIN 2120-AA64


Airworthiness Directives; Cessna Model 560 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 Cessna Model 560 series airplanes, that 
currently requires revising the FAA-approved Airplane Flight Manual 
(AFM) to provide the flightcrew with limitations, operational 
procedures, and performance information to be used during approach and 
landing when residual ice is present or can be expected. This amendment 
is prompted by reports indicating that, while operating in icing 
conditions or when ice is on the wings, some of these airplanes have 
experienced uncommanded roll at (or slightly higher than) the speed at 
which the stall warning system is activated. This amendment requires 
revising the AFM and revises the applicability of the existing AD. This 
amendment also requires modification of the stall warning system of the 
angle-of-attack computer. The actions specified by this AD are intended 
to prevent uncommanded roll of the airplane during approach and landing 
when residual ice is present or can be expected.

DATES: Effective April 3, 2000.
    The incorporation by reference of certain publications listed in 
the regulations is approved by the Director of the Federal Register as 
of April 3, 2000.

ADDRESSES: The service information referenced in this AD may be 
obtained from Cessna Aircraft Co., P.O. Box 7706, Wichita, Kansas 
67277. 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, 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: Carlos Blacklock, Aerospace Engineer, 
Flight Test and Program Management Branch, ACE-117W, FAA, Small 
Airplane Directorate, Wichita Aircraft Certification Office, 1801 
Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209; 
telephone (316) 946-4166; fax (316) 946-4407.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal 
Aviation Regulations (14 CFR part 39) by superseding AD 96-24-06, 
amendment 39-9844 (61 FR 64456, December 10, 1996), which is applicable 
to certain Cessna Model 560 series airplanes, was published in the 
Federal Register on September 10, 1999 (64 FR 49115). The action 
proposed to require revising the AFM and would revise the applicability 
of the existing AD. That action also proposed to require modification 
of the stall warning system of the angle-of-attack computer.
    Interested persons have been afforded an opportunity to participate 
in the making of this amendment. Due consideration has been given to 
the comment received.

Request to Withdraw the Proposal

    One commenter, the manufacturer, requests that the FAA withdraw the 
proposal since the manufacturer has written confirmation that the 
modification described in the appropriate service bulletin, as 
specified in the proposed AD, has been accomplished on all affected 
airplanes.
    The FAA does not concur that the final rule should be withdrawn. 
The FAA points out that compliance with the applicable service 
bulletins is not the only requirement of the final rule. Paragraph (a) 
of the final rule specifies certain Airplane Flight Manual (AFM) 
revisions and requires that the FAA-approved AFM be revised in 
accordance with those specified AFM revisions. The FAA notes that, 
although the service bulletins specified as the appropriate service 
information in the final rule contain instructions to revise the AFM, 
those instructions are not mandatory. Therefore, the FAA cannot be 
assured that the AFM revision would not be removed in the future. 
Further, paragraph (b) of the final rule only requires modification of 
the stall warning system of the angle-of-attack computer of the 
navigational system. It does not require that other instructions (i.e., 
revision of the AFM) be accomplished. The FAA has determined that it is 
necessary to issue the final rule as proposed.

Conclusion

    After careful review of the available data, including the comment 
noted above, the FAA has determined that air safety and the public 
interest require the adoption of the rule as proposed.

Cost Impact

    There are approximately 437 airplanes of the affected design in the 
worldwide fleet. The FAA estimates that 327 airplanes of U.S. registry 
will be affected by this AD.
    For all airplanes, the new AFM revision that is required by this 
new AD will 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 of the AFM revision required by this AD on U.S. 
operators is estimated to be $19,620, or $60 per airplane.
    For airplanes listed in Cessna Service Bulletin SB560-34-69, the 
modification that is required in this new AD will take approximately 40 
work hours per airplane to accomplish, at an average labor rate of $60 
per work hour. Required parts will cost approximately $8,036 per 
airplane. Based on these figures, the cost impact of the modification 
required by this AD on U.S. operators is estimated to be $10,436 per 
airplane.
    For airplanes listed in Cessna Service Bulletin SB560-34-70, the 
modification that is required in this new AD will take approximately 40 
work hours per airplane to accomplish, at an average labor rate of $60 
per work hour. Required parts will cost approximately $7,762 per 
airplane. Based on these figures, the cost impact of the modification 
required by this AD on U.S. operators is estimated to be $10,162 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

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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 39-9844 (61 FR 
64456, December 10, 1996), and by adding a new airworthiness directive 
(AD), amendment 39-11568, to read as follows:

2000-03-09  Cessna Aircraft Company: Amendment 39-11568. Docket 98-
NM-312-AD. Supersedes AD 96-24-06, Amendment 39-9844.

    Applicability: Model 560 series airplanes having serial numbers 
(S/N) 560-0001 through 560-0437 inclusive; 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 (d) 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 uncommanded roll of the airplane during approach and 
landing when residual ice is present or can be expected, accomplish 
the following:

Airplane Flight Manual (AFM) Revisions

    (a) Within 10 days after the effective date of this AD, revise 
the FAA-approved Airplane Flight Manual (AFM); to provide the 
flightcrew with limitations, operational procedures, and performance 
information to be used during approach and landing when residual ice 
is present or can be expected; in accordance with the applicable 
revision of the AFM specified in paragraph (a)(1) or (a)(2) of this 
AD.
    (1) For airplanes having S/N's 560-0001 through 560-0259 
inclusive: AFM
    Model 560 Citation V, Revision 11, dated July 16, 1998.
    (2) For airplanes having S/N's 560-0260 through 560-0437 
inclusive: AFM Model 560 Citation V Ultra, Revision 7, dated July 
16, 1998.

Modification

    (b) Within 6 months after the effective date of this AD, modify 
the stall warning system of the angle-of-attack computer of the 
navigational system, in accordance with paragraph (b)(1) or (b)(2), 
as applicable, of this AD.
    (1) For airplanes having S/N's 560-0001 through 560-0055 
inclusive: Modify in accordance with Cessna Service Bulletin SB560-
34-70, dated July 14, 1998.
    (2) For airplanes having S/N's 560-0056 through 560-0437 
inclusive: Modify in accordance with Cessna Service Bulletin SB560-
34-69, Revision 2, dated July 24, 1998.

Spares

    (c) As of the effective date of this AD, no person shall install 
on any airplane an angle-of-attack computer having part number 
C11606-2 or C11606-3.

Alternative Methods of Compliance

    (d) 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 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

    (e) 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

    (f) The actions shall be done in accordance with Cessna Airplane 
Flight Manual, Model 560 Citation V, Serial -0001 thru -0259, 
Revision 11, dated July 16, 1998; Cessna Airplane Flight Manual, 
Model 560 Citation V Ultra, Unit -0260 and on, Revision 7, dated 
July 16, 1998; Cessna Service Bulletin SB560-34-70, dated July 14, 
1998, and Cessna Service Bulletin SB560-34-69, Revision 2, dated 
July 24, 1998.
    (1) Cessna Airplane Flight Manual, Model 560 Citation V, Serial 
-0001 thru -0259, Revision 11, dated July 16, 1998, contains the 
following log of effective pages: (Note: The issue date of Revision 
11 is indicated only on the title page of the revision.)

------------------------------------------------------------------------
                                                          Revision level
                       Page number                         shown on page
------------------------------------------------------------------------
Log of Effective Pages, Pages i through vi..............              11
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    (2) Cessna Airplane Flight Manual, Model 560 Citation V Ultra, 
Unit -0260 and on, Revision 7, dated July 16, 1998, contains the 
following log of effective pages: (Note: The issue date of Revision 
7 is indicated only on the title page of the revision.)

------------------------------------------------------------------------
                                                          Revision level
                        Page No.                           shown on page
------------------------------------------------------------------------
Log of Effective Pages, Pages i through vi..............               7
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    (3) Cessna Service Bulletin SB560-34-69, Revision 2, dated July 
24, 1998, contains the following list of effective pages:

----------------------------------------------------------------------------------------------------------------
                                           Revision level shown on
                Page No.                            page                          Date shown on page
----------------------------------------------------------------------------------------------------------------
1......................................  2.........................  July 24, 1998.
2, 4, 6-9..............................  Original..................  September 19, 1997.
3, 5...................................  1.........................  December 16, 1997.
 
                                                Supplemental Data
 
 1.....................................  A.........................  December 16, 1997.
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    (4) This incorporation by reference was approved by the Director 
of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR 
part 51. Copies may be obtained from Cessna Aircraft Co., P.O. Box 
7706, Wichita, Kansas 67277. Copies may be

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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.
    (g) This amendment becomes effective on April 3, 2000.

    Issued in Renton, Washington, on February 9, 2000.
Donald L. Riggin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 00-3532 Filed 2-25-00; 8:45 am]
BILLING CODE 4910-13-U