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[Federal Register: June 28, 2011 (Volume 76, Number 124)]
[Proposed Rules]               
[Page 37682-37684]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr28jn11-26]                         

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2011-0085; Directorate Identifier 2000-NE-19-AD]
RIN 2120-AA64

 
Airworthiness Directives; Teledyne Continental Motors (TCM) and 
Rolls-Royce Motors Ltd. (R-RM) Series Reciprocating Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to supersede an existing airworthiness directive 
(AD) that applies to certain TCM and R-RM series reciprocating engines. 
The existing AD currently requires replacement of certain magnetos if 
they fall within the specified serial number (S/N) range, inspection of 
the removed magneto to verify that the stop pin is still in place, and, 
if the stop pin is not in place, inspection of the engine gear train, 
crankcase, and accessory case. Since we issued that AD, we became aware 
of an error in the previous AD applicability in the range of magneto S/
Ns affected, and of the need to include certain engines made by R-RM, 
under license of TCM. This proposed AD would correct the range of S/Ns 
affected, require the same replacement and inspections, and would add 
R-RM C-125, C-145, O-300, IO-360, TSIO-360, and LTSIO-520-AE series 
reciprocating engines to the applicability. We are proposing this AD to 
correct the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by August 12, 2011.

[[Page 37683]]

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this AD, contact Teledyne 
Continental Motors, Inc., PO Box 90, Mobile, AL 36601; phone (251) 438-
3411, or go to: http://tcmlink.com/servicebulletins.cfm. You may review 
copies of the referenced service information at the FAA, New England 
Region, 12 New England Executive Park, Burlington, MA. For information 
on the availability of this material at the FAA, call (781) 238-7125.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov; or in person at the Docket Management Facility 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this proposed AD, the regulatory 
evaluation, any comments received, and other information. The street 
address for the Docket Office (phone: 800-647-5527) is in the ADDRESSES 
section. Comments will be available in the AD docket shortly after 
receipt.

FOR FURTHER INFORMATION CONTACT: Neil Duggan, Aerospace Engineer, 
Propulsion, Atlanta Aircraft Certification Office, FAA, Small Airplane 
Directorate; 1701 Columbia Avenue, College Park, Georgia, 30337; phone: 
(404) 474-5576; fax: (404) 474-5606; e-mail: neil.duggan@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2011-0085; 
Directorate Identifier 2000-NE-19-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    On June 17, 2002, we issued AD 2002-13-04, Amendment 39-12792 (FR 
67 43230, June 27, 2002), for TCM C-125, C-145, O-300, IO-360, TSIO-
360, and LTSIO-520-AE series reciprocating engines. That AD requires, 
within 10 flight hours after the effective date of that AD, replacement 
of certain magnetos if they fall within the specified S/N range, 
inspection of the removed magneto to verify that the stop pin is still 
in place, and, if the stop pin is not in place, inspection of the 
engine gear train, crankcase, and accessory case. That AD resulted from 
reports of engine failures on certain TCM reciprocating engines. We 
issued that AD to prevent engine failure and loss of control of the 
airplane due to migration of the magneto impulse coupling stop pin out 
of the magneto frame and into the gear train of the engine.

Actions Since Existing AD Was Issued

    Since we issued AD 2002-13-04, we became aware of an error in the 
applicability paragraph of that AD, in the range of S/Ns affected. That 
AD applicability listed magneto S/Ns of 99110001 through 9912999 
inclusive. This proposed AD supersedure would correct the applicability 
to state magneto S/Ns of 99110001 through 99129999 inclusive, and add 
R-RM C-125, C-145, O-300, IO-360, TSIO-360, and LTSIO-520-AE series 
reciprocating engines built under license of TCM, to the applicability.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would retain all requirements of AD 2002-13-04. 
This proposed AD would also correct the range of S/Ns affected, and 
would add R-RM C-125, C-145, O-300, IO-360, TSIO-360, and LTSIO-520-AE 
series reciprocating engines to the applicability. Since AD 2002-13-04 
was issued, the AD format has been revised, and certain paragraphs have 
been rearranged. As a result, the corresponding paragraph identifiers 
have changed in this proposed AD, as listed in the following table:

                      Revised Paragraph Identifiers
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                                     Corresponding  requirement in  this
    Requirement in AD 2002-13-04                 proposed AD
------------------------------------------------------------------------
          paragraph (a)                        paragraph (f)
          paragraph (b)                        paragraph (g)
          paragraph (c)                        paragraph (h)
------------------------------------------------------------------------

Costs of Compliance

    We estimate that this proposed AD would affect 100 R-RM C-125, C-
145, O-300, IO-360, TSIO-360, and LTSIO-520-AE series reciprocating 
engines installed on airplanes of U.S. registry. We also estimate that 
it would take about 2 work-hours per engine to perform the inspections, 
and that the average labor rate is $85 per work-hour. Based on these 
figures, we estimate the total cost of the proposed AD to U.S. 
operators to be $17,000. Our cost estimate is exclusive of possible 
warranty coverage.

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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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.

[[Page 37684]]

    For the reasons discussed above, I certify that the proposed 
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),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) 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.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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. The FAA amends Sec.  39.13 by removing airworthiness directive 
(AD) 2002-13-04, Amendment 39-12792 (67 FR 43230, June 27, 2002), and 
adding the following new AD:

    Teledyne Continental Motors (TCM) and Rolls-Royce Motors Ltd. 
(R-RM) Series Reciprocating Engines: Docket No. FAA-2011-0085; 
Directorate Identifier 2000-NE-19-AD.

(a) Comments Due Date

    The FAA must receive comments on this AD action by August 12, 
2011.

(b) Affected ADs

    This AD supersedes AD 2002-13-04, Amendment 39-12792.

(c) Applicability

    This AD applies to TCM and R-RM C-125, C-145, O-300, IO-360, 
TSIO-360, and LTSIO-520-AE series reciprocating engines with 
Champion Aerospace (formerly Unison Industries) Slick Magnetos, 
models 6314, 6324, and 6364, with magneto serial numbers (S/Ns) of 
99110001 through 99129999 inclusive.

(d) Unsafe Condition

    This AD was prompted by an error in the previous AD 
applicability in the range of magneto S/Ns affected, and by the need 
to include certain engines made by R-RM, under license of TCM. We 
are issuing this AD to prevent engine failure and loss of control of 
the airplane due to migration of the magneto impulse coupling stop 
pin out of the magneto frame and into the gear train of the engine.

(e) Compliance

    Comply with this AD within 10 flight hours after the effective 
date of this AD, unless already done.

(f) Replacement of Magneto

    Replace any magneto that has a S/N of 99110001 through 99129999, 
inclusive, with a magneto that does not have a serial number in that 
range. If magneto is not in this S/N range, no further action is 
required by this AD.

(g) Inspections

    Inspect each removed magneto to verify that the impulse coupling 
stop pin is present. If the pin is missing, do the following:
    (1) For C-125, C-145, O-300, IO-360, and TSIO-360 series 
engines, do the following:
    (i) Remove magnetos, alternator or generator, and starter 
adapter from the accessory case.
    (ii) Remove the accessory case from the crankcase and oil sump.
    (iii) Visually inspect the entire engine gear train for damaged 
or broken gears and gear teeth.
    (iv) Inspect visible portions of the engine crankcase and 
accessory case for damage due to the stop pin becoming lodged 
between the engine gear train and the crankcase or accessory case.
    (v) If the accessory case is damaged, repair or replace the 
accessory case.
    (vi) If the engine crankcase is damaged, disassemble the engine, 
and repair or replace the crankcase.
    (vii) Inspect the oil pump drive gear teeth and inner cam gear 
teeth for damage. Replace any engine drive train component that has 
been damaged.
    (viii) Replace any damaged gear, and magnaflux the mating gears 
using the applicable engine overhaul manual.
    (2) For LTSIO-520-AE series engines, do the following:
    (i) Remove the starter adapter, fuel pump, vacuum pumps, 
accessory drive pads, and both magnetos.
    (ii) Visually inspect the entire engine gear train for damaged 
or broken gears and gear teeth.
    (iii) If any damage has occurred, remove the engine from the 
airplane, disassemble the engine, and inspect it for damage. If any 
damage is found, repair as necessary.
    (iv) Replace any damaged gear, and magnaflux the mating gears 
using the applicable engine overhaul manual.
    (v) Inspect the interior portions of the engine crankcase for 
damage due to the stop pin becoming lodged between the gear train 
and the crankcase. If the crankcase is damaged, repair or replace 
the crankcase.

(h) Installation Prohibition

    After the effective date of this AD, do not install any Champion 
Aerospace (formerly Unison Industries) Slick magnetos, model 6314, 
6324, or 6364 that have a S/N of 99110001 through 99129999 
inclusive, on any engine.

(i) Alternative Methods of Compliance

    The Manager, Atlanta Aircraft Certification Office, FAA, has the 
authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19.

(j) Related Information

    (1) A cross-reference for part numbers (P/Ns) for Champion 
Aerospace (formerly Unison Industries) Slick magneto model 6314 (TCM 
P/N 653271), model 6324 (TCM P/N 653292), and model 6364 (TCM P/N 
649696) can be found in TCM Mandatory Service Bulletin MSB00-6D, 
dated November 19, 2010.
    (2) For more information about this AD, contact Neil Duggan, 
Aerospace Engineer, Propulsion, Atlanta Aircraft Certification 
Office, FAA, Small Airplane Directorate; 1701 Columbia Avenue, 
College Park, Georgia, 30337; phone: (404) 474-5576; fax: (404) 474-
5606; e-mail: neil.duggan@faa.gov.

    Issued in Burlington, Massachusetts, on June 20, 2011.
Peter A. White,
Acting Manager, Engine & Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 2011-16088 Filed 6-27-11; 8:45 am]
BILLING CODE 4910-13-P
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