[Federal Register Volume 60, Number 113 (Tuesday, June 13, 1995)]
[Rules and Regulations]
[Pages 31075-31077]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-14496]
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DEPARTMENT OF TRANSPORTATION
14 CFR Part 39
[Docket No. 93-ANE-44; Amendment 39-9271; AD 94-01-03 R2]
Airworthiness Directives; Teledyne Continental Motors (Formerly
Bendix) S-20, S-200, S-600, and S-1200 Series Magnetos
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule; request for comments.
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SUMMARY: This amendment revises an existing airworthiness directive
(AD), applicable to Teledyne Continental Motors (TCM) (formerly Bendix)
S-20, S-200, S-600, and S-1200 series magnetos, that currently requires
replacing Bendix ignition coils and rotating magnets, regardless of
total time in service (TIS), with improved TCM ignition coils, rotating
magnets and marking magnetos to indicate compliance, except for the S-
1200 series magnetos on which the AD requires replacing only the
ignition coils as that series magneto already incorporates rotating
magnets with the improved TCM design. This amendment removes several
notes after the applicability paragraph and inserts these as paragraphs
into the applicability itself and into the compliance section to
clarify that these actions are mandatory. In addition, this amendment
allows installation of replacement serviceable Parts Manufacturer
Approval (PMA) parts in addition to TCM parts. Also, this amendment
clarifies that Bendix magnetos replaced with Slick magnetos satisfy the
requirements of the AD, and that operators must perform the
requirements of the AD on magnetos with Bendix magneto data plates that
have been replaced with an overhaul facility's data plate. This
amendment is prompted by comments that request clarification of the
compliance notes and by the request to install replacement serviceable
PMA parts. The actions specified by this AD are intended to prevent
magneto failure and subsequent engine failure.
DATES: Effective on June 28, 1995.
The incorporation by reference of certain publications listed in
the regulations was previously approved by the Director of the Federal
Register as of September 6, 1994 (59 FR 43029, August 22, 1994).
Comments for inclusion in the Rules Docket must be received on or
before August 14, 1995.
ADDRESSES: Submit comments in triplicate to the Federal Aviation
Administration (FAA), New England Region, Office of the Assistant Chief
Counsel, Attention: Rules Docket No. 93-ANE-44, 12 New England
Executive Park, Burlington, MA 01803-5299.
The service information referenced in this AD may be obtained from
Teledyne Continental Motors, P.O. Box 90, Mobile, AL 36601; telephone
(205) 438-3411. This information may be examined at the FAA, New
England Region, Office of the Assistant Chief Counsel, 12 New England
Executive Park, Burlington, MA; or at the Office of the Federal
Register, 800 North Capitol Street, NW., suite 700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Jerry Robinette, Aerospace Engineer,
Atlanta Aircraft Certification Office, FAA, Small Airplane Directorate,
Campus Building, 1701 Columbia Ave., Suite S-160, College Park, GA
30337-2748; telephone (404) 305-7371; fax (404) 305-7348.
SUPPLEMENTARY INFORMATION: On December 29, 1993, the Federal Aviation
Administration (FAA) issued airworthiness directive (AD) 94-01-03,
Amendment 39-8785 (59 FR 4555, February 1, 1994), to require replacing
certain Bendix ignition coils and rotating magnets, regardless of time
in service (TIS), with improved serviceable Teledyne Continental Motors
(TCM) ignition coils and rotating magnets at either the next 100-hour
inspection, the next annual inspection, the next progressive
inspection, or the next 100 hours TIS after the effective date of the
AD, whichever occurs first. For S-1200 series magnetos, the AD requires
replacing only the ignition coils as the rotating magnets on that
series magneto already incorporates the improved TCM design.
Additionally, the AD requires re-marking magnetos to indicate
compliance. That action was prompted by reports of accidents caused by
failures of magnetos incorporating older Bendix components that had not
been replaced in accordance with superseded AD 73-07-04, Amendment 39-
1731 (38 FR 27600, October 5, 1973). That condition, if not corrected,
could result in magneto failure and subsequent engine failure.
On August 11, 1994, the FAA issued AD 94-17-11, Amendment 39-9006
(59 FR 43029, August 22, 1994), that revises AD 94-01-03, and notes
that an error in [[Page 31076]] the serial number listing in TCM
Service Bulletin (SB) No. 637, dated December 1992, resulted in too
many affected magnetos requiring AD compliance. The AD applies only to
certain magnetos manufactured by Bendix in Sidney, New York, and not to
any Bendix magnetos built in either Jacksonville, Florida, or Atlanta,
Georgia. In addition, the S-600 series magnetos require replacement of
only the rotating magnets and not the ignition coils. Finally, the FAA
received reports that there is some confusion as to how the S-20, S-
200, S-600, and S-1200 series magnetos are referenced in the TCM SB and
the AD and clarified the applicability paragraph by adding additional
identification information.
On November 3, 1994, the FAA issued a correction to Docket No. 93-
ANE-44, Amendment 39-9006 (59 FR 55955, November 10, 1994), which
changes the AD number to AD 94-01-03 R1, as it was a revision to the
previous AD and should not have been assigned a new AD number.
Since the issuance of that AD, the FAA received comments requesting
clarification of the compliance notes and the option of installing
replacement serviceable Parts Manufacturer Approval (PMA) parts.
The FAA has reviewed and approved the technical contents of TCM
Mandatory Service Bulletin (MSB) No. MSB644, dated April 4, 1994, that
describes procedures for replacing certain Bendix ignition coils and
rotating magnets with improved serviceable TCM ignition coils and
rotating magnets and marking magnetos to indicate compliance with this
MSB.
Since an unsafe condition has been identified that is likely to
exist or develop on other products of this same type design, this AD
revises AD 94-01-03 R1 to insert the text of several notes appearing
after the applicability paragraph as compliance paragraphs to clarify
that these actions are mandatory. In addition, this amendment allows
installation of replacement serviceable PMA parts in addition to TCM
parts. Also, this amendment clarifies that Bendix magnetos replaced
with Slick magnetos satisfy the requirements of this AD, and that
operators must perform the requirements of this AD on magnetos with
Bendix magneto data plates that have been replaced with an overhaul
facility's data plate. The actions are required to be accomplished in
accordance with the MSB described previously.
Since a situation exists that requires the immediate adoption of
this regulation, it is found that notice and opportunity for prior
public comment hereon are impracticable, and that good cause exists for
making this amendment effective in less than 30 days.
Comments Invited
Although this action is in the form of a final rule that involves
requirements affecting flight safety and, thus, was not preceded by
notice and an opportunity for public comment, comments are invited on
this rule. Interested persons are invited to comment on this rule by
submitting such written data, views, or arguments as they may desire.
Communications should identify the Rules Docket number and be submitted
in triplicate to the address specified under the caption ADDRESSES. All
communications received on or before the closing date for comments will
be considered, and this rule may be amended in light of the comments
received. Factual information that supports the commenter's ideas and
suggestions is extremely helpful in evaluating the effectiveness of the
AD action and determining whether additional rulemaking action would be
needed.
Comments are specifically invited on the overall regulatory,
economic, environmental, and energy aspects of the rule that might
suggest a need to modify the rule. All comments submitted will be
available, both before and after the closing date for comments, in the
Rules Docket for examination by interested persons. A report that
summarizes each FAA-public contact concerned with the substance of this
AD will be filed in the Rules Docket.
Commenters wishing the FAA to acknowledge receipt of their comments
submitted in response to this notice must submit a self-addressed,
stamped postcard on which the following statement is made: ``Comments
to Docket Number 93--ANE-44.'' The postcard will be date stamped and
returned to the commenter.
The regulations adopted herein will not have substantial direct
effects 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, in
accordance with Executive Order 12612, it is determined that this final
rule does not have sufficient federalism implications to warrant the
preparation of a Federalism Assessment.
The FAA has determined that this regulation is an emergency
regulation that must be issued immediately to correct an unsafe
condition in aircraft, and is not a ``significant regulatory action''
under Executive Order 12866. It has been determined further that this
action involves an emergency regulation under DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979). If it is determined
that this emergency regulation otherwise would be significant under DOT
Regulatory Policies and Procedures, a final regulatory evaluation will
be prepared and placed in the Rules Docket. A copy of it, if filed, 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. App. 1354(a), 1421 and 1423; 49 U.S.C.
106(g); and 14 CFR 11.89.
Sec. 39.13 [Amended]
2. Section 39.13 is amended by removing Amendment 39--9006 (59 FR
43029, August 22, 1994), corrected (59 FR 55955, November 10, 1994),
and by adding a new airworthiness directive, Amendment 39-9271, to read
as follows:
94-01-03 R2 Teledyne Continental Motors: Amendment 39--9271. Docket
93-ANE-44. Revises AD 94-01-03 R1, Amendment 39-9006.
Applicability: Teledyne Continental Motors (TCM), formerly
Bendix magnetos:
S-20, S-200, and S-600 series magnetos with red or black Bendix
(not TCM) data plates having serial numbers (S/N's): lower than
2000000 without any letter prefix; or S/N's lower than A16058 having
the letter ``A'' prefix.
S-20, S-200, and S-600 series magnetos with blue Bendix (not
TCM) data plates marked ``REMANUFACTURED'' having S/N's lower than
901001.
S-1200 series magnetos with red Bendix (not TCM) data plates
having S/N's: lower than 2000000 without any letter prefix; or S/N's
lower than A132844 having the letter ``A'' prefix.
S-1200 series magnetos with blue Bendix (not TCM) data plates
marked ``REMANUFACTURED'' having S/N's lower than 901001.
These magnetos are installed on but not limited to reciprocating
engine powered aircraft manufactured by Beech, Cessna, Maule,
Mooney, and Piper.
[[Page 31077]] Note 1: The FAA has received reports of some
confusion as to what is meant by S-20, S-200, S-600, and S-1200
series magnetos as referenced in TCM Mandatory Service Bulletin
(MSB) No. MSB644, dated April 4, 1994, and this AD. A typical
example is S6RN-25, where the S designates single type ignition
unit, the 6 designates the number of engine cylinders, the R
designates right hand rotation, the N is the manufacturer designator
(this did not change when TCM purchased the Bendix magneto product
line), and the number after the dash indicates the series (a -25 is
a S-20 series magneto, while a -1225 is a S-1200 series magneto).
Note 2: This AD applies to each magneto 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 magnetos that have been modified,
altered, or repaired so that the performance of the requirements of
this AD is affected, the owner/operator must use the authority
provided in paragraph (k) to request approval from the FAA. This
approval may address either no action, if the current configuration
eliminates the unsafe condition, or different actions necessary to
address the unsafe condition described in this AD. Such a request
should include an assessment of the effect of the changed
configuration on the unsafe condition addressed by this AD. In no
case does the presence of any modification, alteration, or repair
remove any magneto from the applicability of this AD.
Compliance: Required as indicated, unless accomplished
previously.
To prevent magneto failure and subsequent engine failure,
accomplish the following:
(a) No action is required for those magnetos in compliance with
AD 94-01-03 or 94-01-03 R1.
(b) An optional method of compliance with this AD is to replace
the Bendix magnetos with Slick magnetos where FAA approval has been
granted for that application.
(c) If a Bendix magneto data plate has been replaced with an
overhaul facility's data plate, this AD is still applicable to that
magneto since the magneto is a Bendix magneto.
(d) Yellow Bendix or TCM service spare data plates may have been
installed during a field overhaul; use model and S/N to determine
applicability.
(e) Magnetos built by Bendix in Jacksonville, Florida, and
Magnetos built by TCM in Atlanta, Georgia, as indicated on the data
plate, are not affected by this AD.
(f) The paint on some early data plates may have been
obliterated and the data plate will appear silver in color; use
model and serial number to determine applicability.
(g) For Bendix S-20 and S-200 series magnetos, replace Bendix
ignition coils and rotating magnets identified in the Detailed
Instructions of TCM MSB No. MSB644, dated April 4, 1994, with
serviceable TCM or Parts Manufacturer Approval (PMA) ignition coils
and rotating magnets at the next 100 hour inspection, the next
annual inspection, the next progressive inspection, or the next 100
hours time in service (TIS) after the effective date of this AD,
whichever occurs first.
(h) For the Bendix S-600 series magnetos, replace Bendix
rotating magnets identified in the Detailed Instructions of TCM MSB
No. MSB644, dated April 4, 1994, with serviceable TCM or PMA
rotating magnets at the next 100 hour inspection, the next annual
inspection, the next progressive inspection, or the next 100 hours
TIS after the effective date of this AD, whichever occurs first.
Note: The ignition coils on the S-600 series magnetos already
incorporate the improved design.
(i) For the Bendix S-1200 series magneto, replace Bendix
ignition coils identified in the Detailed Instructions of TCM MSB
No. MSB644, dated April 4, 1994, with serviceable TCM or PMA
ignition coils at the next 100 hour inspection, the next annual
inspection, the next progressive inspection, or the next 100 hours
TIS after the effective date of this AD, whichever occurs first.
Note: The rotating magnets on the S-1200 series magnetos already
incorporate the improved design.
(j) After compliance with paragraphs (d), (e), or (f) of this
AD, as applicable, and prior to further flight, mark the magneto in
accordance with the Identification Instructions of TCM MSB No.
MSB644, dated April 4, 1994.
(k) An alternative method of compliance or adjustment of the
initial compliance time that provides an acceptable level of safety
may be used if approved by the Manager, Atlanta Aircraft
Certification Office. The request should be forwarded through an
appropriate FAA Maintenance Inspector, who may add comments and then
send it to the Manager, Atlanta Aircraft Certification Office.
Note: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the Atlanta Aircraft Certification Office.
(l) 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 aircraft to a location where
the requirements of this AD can be accomplished.
(m) The actions required by this AD shall be done in accordance
with the following service document:
------------------------------------------------------------------------
Document No. Pages Revision date
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TCM SB No. MSB644........................ 1-3 April 4, 1994.
Total pages: 3.
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This incorporation by reference was previously approved by the
Director of the Federal Register in accordance with 5 U.S.C. 552(a)
and 1 CFR part 51 as of September 6, 1994 (59 FR 43029, August 22,
1994). Copies may be obtained from Teledyne Continental Motors, P.O.
Box 90, Mobile, AL 36601; telephone (205) 438-3411. Copies may be
inspected at the FAA, New England Region, Office of the Assistant
Chief Counsel, 12 New England Executive Park, Burlington, MA; or at
the Office of the Federal Register, 800 North Capitol Street, NW.,
suite 700, Washington, DC.
(n) This amendment becomes effective on June 28, 1995.
Issued in Burlington, Massachusetts, on June 5, 1995.
Ronald L. Vavruska,
Acting Manager, Engine and Propeller Directorate, Aircraft
Certification Service.
[FR Doc. 95-14496 Filed 6-9-95; 2:50 pm]
BILLING CODE 4910-13-U
