AD 2011-26-04

We are superseding an existing airworthiness directive (AD) for certain fuel injected reciprocating engines manufactured by Lycoming Engines. That AD currently requires inspection, replacement if necessary, and proper clamping of externally mounted fuel injector fuel lines. That AD also states that it is not applicable to engines that have a Maintenance and Overhaul Manual with an Airworthiness Limitations Section that requires inspection and replacement, if necessary, of externally mounted fuel injector lines. This new AD requires the same actions. This AD was prompted by Lycoming Engines revising their Mandatory Service Bulletin (MSB) to add engine models requiring inspections. We are issuing this AD to prevent failure of the fuel injector fuel lines that would allow fuel to spray into the engine compartment, resulting in an engine fire.

Final rule.

Adoption of the Amendment

Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

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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 FAA amends Sec. 39.13 by removing airworthiness directive (AD) 2008-14-07, Amendment 39-15602 (73 FR 39574, July 10, 2008), and adding the following new AD:

2011-26-04 Lycoming Engines (formerly Textron Lycoming Division, AVCO Corporation): Amendment 39-16894; Docket No. FAA-2007-0218; Directorate Identifier 92-ANE-56-AD.

(a) Effective Date

This airworthiness directive (AD) is effective January 25, 2012.

(b) Affected ADs

This AD supersedes AD 2008-14-07, Amendment 39-15602 (73 FR 39574, July 10, 2008).

(c) Applicability

(1) This AD applies to fuel injected reciprocating engines manufactured by Lycoming Engines that incorporate externally mounted fuel injection lines (engines with an ``I'' in the prefix of the engine model designation) as listed in the following Table 1:

Table 1--Engine Models Affected ------------------------------------------------------------------------
Engine Model ------------------------------------------------------------------------ AEIO-320..................... -D1B, -D2B, -E1B, -E2B AIO-320...................... -A1B, -BIB, -C1B IO-320....................... -B1A, -B1C, -C1A, -D1A, -D1B, -E1A, -E1B,
-E2A, -E2B LIO-320...................... -B1A, -C1A AEIO-360..................... -A1A, -A1B, -A1B6, -A1D, -A1E, -A1E6, -
B1F, -B2F, -B1G6, -B1H, -B4A, -H1A, -H1B AIO-360...................... -A1A, -A1B, -B1B HIO-360...................... -A1A, -A1B, -B1A, -C1A, -C1B, -D1A, -
E1AD, -E1BD, -F1AD, -G1A IO-360....................... -A1A, -A1B, -A1B6, -A1B6D, -A1C, -A1D, -
A1D6, -A2A,-A2B, -A3B6, -A3B6D, -B1B, -
B1D, -B1E, -B1F, -B1G6, -B2F, -B2F6, -
B4A, -C1A, -C1B, -C1C, -C1C6, -C1D6, -
C1E6, -C1F, -C1G6, -F1A, -J1A6D, -M1B, -
L2A, -M1A IVO-360...................... -A1A LIO-360...................... -C1E6, -M1A TIO-360...................... -A1B, -C1A6D IGO-480...................... -A1B6 AEIO-540..................... -D4A5, -D4B5, -D4D5, -L1B5, -L1B5D, -L1D5 IGO-540...................... -B1A, -B1C IO-540....................... -A1A5, -AA1A5, -AA1B5, -AB1A5, -AC1A5, -
AE1A5, -B1A5, -B1C5, -C1B5, -C4B5, -
C4D5D, -D4A5, -E1A5, -E1B5, -G1A5, -
G1B5, -G1C5, -G1D5, -G1E5, -G1F5, -J4A5,
-V4A5D, -K1A5, -K1A5D, -K1B5, -K1C5, -
K1D5, -K1E5, -K1E5D, -K1F5, K1H5, -K1J5,
-K1F5D, -K1G5, -K1G5D, -K1H5, -K1J5D, -
K1K5, -K1E5, -K1E5D, -K1F5, -K1J5, -
L1C5, -M1A5, -M1B5D, -M1C5, -N1A5, -
P1A5, -R1A5, -S1A5, -T4A5D, -T4B5, -
T4B5D, -T4C5D, -V4A5, -V4A5D, -W1A5, -
W1A5D, -W3A5D IVO-540...................... -A1A LTIO-540..................... -F2BD, -J2B, -J2BD, -N2BD, -R2AD, -U2A, -
V2AD, -W2A TIO-540...................... -A1A, -A1B, -A2A, -A2B, -A2C, -AE2A, -
AH1A, -AA1AD, -AF1A, -AF1B, -AG1A, -
AB1AD, -AB1BD, -AH1A, -AJ1A, -AK1A, -
C1A, -E1A, -G1A, -F2BD, -J2B, -J2BD, -
N2BD, -R2AD, -S1AD, -U2A, -V2AD, -W2A TIVO-540..................... -A2A IO-720....................... -A1A, -A1B, -D1B, -D1BD, -D1C, -D1CD, -
B1B, -B1BD, -C1B ------------------------------------------------------------------------

(2) Engine models in Table 1 of this AD are installed on, but not limited to, Piper PA-24 Comanche, PA-30 and PA-39 Twin Comanche, PA-28 Arrow, and PA-23 Aztec; Beech 23 Musketeer; Mooney 20, and Cessna 177 Cardinal airplanes.
(3) This AD is not applicable to engines having internally mounted fuel injection lines, which are not accessible. Those engine models are not included in Table 1 of this AD.
(4) This AD is not applicable to engines that have a Maintenance and Overhaul Manual with an Airworthiness Limitations Section that requires inspection of externally mounted fuel injector lines. Those engine models are not included in Table 1 of this AD.

(d) Unsafe Condition

This AD was prompted by Lycoming Engines revising their Mandatory Service Bulletin (MSB) to add engine models requiring inspection. We are issuing this AD to prevent failure of the fuel injector fuel lines that would allow fuel to spray into the engine compartment, resulting in an engine fire.

(e) Compliance

Comply with this AD within the compliance times specified, unless already done.

(f) Engines That Have Had Initial Inspections

For engines that have had initial inspections in accordance with Textron Lycoming MSB No. 342, dated March 24, 1972; Textron Lycoming MSB No. 342A, dated May 26, 1992; Textron Lycoming MSB No. 342B, dated October 22, 1993; Supplement No. 1 to MSB No. 342B, dated April 27, 1999; Textron Lycoming MSB No. 342C, dated April 28, 2000; Textron Lycoming MSB No. 342D, dated July 10, 2001; Lycoming Engines MSB No. 342E, dated May 18, 2004, or Lycoming Engines MSB 342F, dated June 4, 2010, inspect in accordance with paragraph (h) of this AD.

(g) Engines That Have Not Had Initial Inspections

For engines that have not had initial inspections previously done in accordance with Textron Lycoming MSB No. 342, dated March 24, 1972; Textron Lycoming MSB No. 342A, dated May 26, 1992; Textron Lycoming MSB No. 342B, dated October 22, 1993; Supplement No. 1 to MSB No. 342B, dated April 27, 1999; Textron Lycoming MSB No. 342C, dated April 28, 2000; Textron Lycoming MSB No. 342D, dated July 10, 2001; Lycoming Engines MSB No. 342E, dated May 18, 2004, or Lycoming Engines MSB 342F, dated June 4, 2010, inspect as follows:
(1) For engines that have not yet had any fuel line maintenance done, or have not had any fuel line maintenance done since new or since the last overhaul, inspect in accordance with paragraph (i) of this ADwithin 50 hours time-in-service (TIS) after the effective date of this AD.
(2) For all other engines, inspect in accordance with paragraph (i) of this AD within 10 hours TIS after the effective date of this AD.

(h) Repetitive Inspections

Thereafter, inspect at intervals of 100 hours TIS (not to exceed 110 hours), at each engine overhaul, and after any maintenance has been done on the engine where any clamp (or clamps) on a fuel injector line (or lines) has

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been disconnected, moved, or loosened, in accordance with paragraph (i) of this AD.

(i) Inspection Criteria

Inspect the fuel injector fuel lines and clamps between the fuel manifold and the fuel injector nozzles, and replace as necessary any fuel injector fuel line and clamp that does not meet all conditions specified in Lycoming Engines MSB No. 342F, dated June 4, 2010.

(j) Alternative Methods of Compliance (AMOCs)

The Manager, New York Aircraft Certification Office, FAA, has the authority to approve AMOCs for this AD if requested using the procedures found in 14 CFR 39.19. AMOCs approved previously in accordance with AD 2008-14-07, Amendment 39-15602, are approved as AMOCs for the corresponding requirements in paragraph (h) of this AD.

(k) Related Information

(1) For more information about this AD, contact Norm Perenson, Aerospace Engineer, New York Aircraft Certification Office, FAA, Engine & Propeller Directorate, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (516) 228-7337; fax: (516) 794-5531; email: Norman.perenson@faa.gov.
(2) FAA Special Airworthiness Information Bulletin No. NE-07-49, dated September 20, 2007, is not mandatory, but has additional information on this subject.

(l) Material Incorporated by Reference

(1) You must use Lycoming Engines Mandatory Service Bulletin No. 342F, dated June 4, 2010, to perform the actions required by this AD.
(2) The Director of the Federal Register approved the incorporation by reference of this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.
(3) Contact Lycoming Engines, 652 Oliver Street, Williamsport, PA 17701, or go to www.lycoming.textron.com for a copy of this service information. You may review copies at the FAA, New England Region, 12 New England Executive Park, Burlington, MA.
(4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at an NARA facility, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2008-14-07, Amendment 39-15602 (73 FR 39574, July 10, 2008). That AD applies to the specified products. The NPRM published in the Federal Register on February 15, 2011 (76 FR 8661). That NPRM proposed to inspect, replace if necessary, and properly clamp externally mounted fuel injector fuel lines. That AD also states that it is not applicable to engines that have a Maintenance and Overhaul Manual with an Airworthiness Limitations Section that requires inspection and replacement, if necessary, of externally mounted fuel injector lines.

Comments

We gave the public the opportunity to participate in developing this AD. The following presents the comment received on the proposal and the FAA's response to the comment.

Question

One commenter asked why the AD requirements are only for Lycoming engines, and not also for Teledyne Continental Motors (TCM) engines. The commenter inferred that we write ADs, just to make owners maintain their aircraft.
In response, any AD made applicable to TCM engines with externally mounted fuel injector lines, would have to be written by the Atlanta Aircraft Certification Office (ACO), because that office has oversight of TCM. The Atlanta ACO has informed us that at this time, there is insufficient data to justify an AD for TCM engines with externally mounted fuel injector lines, however, they realize there may be justification for issuing a Special Airworthiness Information Bulletin (SAIB), for TCM engines on this subject. They are looking into possibly issuing an SAIB.

Conclusion

We reviewed the relevant data, considered the comment received, and determined that air safety and the public interest require adopting the AD as proposed.

Costs of Compliance

We estimate that this AD affects 21,180 four-cylinder engines, 21,449 six-cylinder engines, and 256 eight-cylinder engines installed on aircraft of U.S. registry. We also estimate that it will take about 0.2 work-hour to inspect all lines on a four-cylinder engine, 0.5 work- hour to inspect all lines on a six-cylinder engine, and 0.7 work-hour to inspect all lines on an eight-cylinder engine. We also estimate that the average labor rate is $85 per work-hour. We do not anticipate any additional costs on U.S. operators, as the inspection would be done in conjunction with other work performed concurrently. We anticipate no parts to be required. Based on these figures, the total cost of the AD to U.S. operators for one inspection of the fleet is $1,286,875.

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 rulemakingunder 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 this AD:
(1) Is not a ``significant regulatory action'' under Executive Order 12866,
(2) Is not a ``significant rule'' under 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, Incorporation by reference, Safety.