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 Department of Transportation Federal Aviation Administration 14 CFR Part 39
[Docket No. FAA-2005-22358; Directorate Identifier 2005-NE-20-AD]
RIN 2120-AA64
 AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT).
 ACTION: Notice of proposed rulemaking (NPRM).
 SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, “Parallel Valve” reciprocating engines, with certain Engine Components Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series “Classic Cast,” installed. This proposed AD would require replacing these ECi cylinder assemblies. This proposed AD results from reports of about 30 failures of the subject cylinder assemblies marketed by ECi. We are proposing this AD to prevent loss of engine power due to cracks in the cylinder assemblies and possible engine failure caused by separation of a cylinder head.
 DATES: We must receive any comments on this proposed AD by November 8, 2005.
 ADDRESSES: Use one of the following addresses to comment on this proposed AD. DOT Docket Web site: Go to*http://dms.dot.gov*
                         and follow the instructions for sending your comments electronically.
                    Government-wide rulemaking Web site: Go to*http://www.regulations.gov*( print page 53587)
                        and follow the instructions for sending your comments electronically.
                    Mail: Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-0003.
                    Fax: (202) 493-2251.
                    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. You may examine the comments on this proposed AD in the AD docket on the Internet at 
                        *http://dms.dot.gov.*
 FOR FURTHER INFORMATION CONTACT: Peter Hakala, Aerospace Engineer, Special Certification Office, FAA, Rotorcraft Directorate, 2601 Meacham Blvd., Fort Worth, TX 76193; telephone (817) 222-5145; fax (817) 222-5785.


SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send us any written relevant data, views, or arguments regarding this proposal. Send your comments to an address listed under 
                    **ADDRESSES**
                    . Include “Docket No. FAA-2005-22358; Directorate Identifier 2005-NE-20-AD” in the subject line of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the proposed AD. We will consider all comments received by the closing date and may amend the proposed AD in light of those comments. 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 proposed AD. Using the search function of the Docket Management System (DMS) Web site, anyone can find and read the comments in any 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 AD Docket You may examine the docket that contains the proposal, any comments received and, any final disposition in person at the DMS Docket Office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Office (telephone (800) 647-5227) is located on the plaza level of the Department of Transportation Nassif Building at the street address stated in 
                    **ADDRESSES**
                    . Comments will be available in the AD docket shortly after the DMS receives them. Discussion We received reports of about 30 failures of ECi cylinder assemblies, P/N AEL65102 series, with casting P/N AEL65099, installed on Lycoming Engines models 320, 360, and 540 series, parallel valve reciprocating engines. Parallel valve Lycoming reciprocating engines are identified by the intake and exhaust valves in a parallel configuration. We investigated the failures and discovered that cylinder head fatigue cracks start in the thin wall located between the counter-bore of the exhaust valve seat and adjacent cooling fin root. Our investigation concluded that the wall thickness of the affected area is too thin, making the wall vulnerable to fatigue cracking. Our investigation also concluded that the fatigue origin is not associated with surface damage resulting from cylinder head over-temperature conditions. Based on these findings, we issued Special Airworthiness Information Bulletin (SAIB) No. NE-01-32, dated July 18, 2001, to alert owners and operators to visually inspect, and to report and replace ECi cylinder heads if found cracked. As a result of our investigation and issuing SAIB No. NE-01-32, ECi introduced an improved cylinder head design for casting P/N AEL65099, starting with serial number (SN) 9880. Their design change increased the cylinder head exhaust port wall thickness. Since the issuance of the SAIB, we continue to receive reports of cracking of ECi cylinder assemblies with casting P/N AEL65099, SNs 1 through 9879. The most recent report, from Kenya, described three cylinders showing cracks, with two of the cylinders separating from the barrel. This condition, if not corrected, could result in loss of engine power due to cracks in the cylinder assembly and possible engine failure caused by separation of a cylinder head. This proposed AD only applies to ECi “Classic Cast” cylinder assemblies identified with casting P/N AEL65099 and SNs 1 through 9879. FAA's Determination and Requirements of the Proposed AD We have evaluated all pertinent information and identified an unsafe condition that is likely to exist or develop on other products of this same type design. We are proposing this AD, which would require the following: Determine if ECi cylinder assemblies, P/N AEL65102 series “Classic Cast”, with casting P/N AEL65099 and SN 1 through 9879 are installed on your engine; and
                If any cylinder assembly is an ECi P/N AEL65102 series “Classic Cast”, with casting P/N AEL65099 and a SN 1 through 9879, and has fewer than 800 operating hours-in-service (HIS) on the effective date of the proposed AD, replace the cylinder assembly at no later than 800 operating HIS. No action is required until the operating HIS reaches 800 hours.
                If any cylinder assembly is an ECi P/N AEL65102 series “Classic Cast”, with casting P/N AEL65099 and a SN 1 through 9879, and has 800 operating HIS or more on the effective date of the proposed AD, replace the cylinder assembly within 60 operating HIS after the effective date of the proposed AD.
                After the effective date of the proposed AD, do not install any ECi cylinder assembly, P/N AEL65102, with casting P/N AEL65099 that has a SN 1 through 9879, onto any engine. Costs of Compliance There were 9,879 ECi cylinder assemblies produced of the affected design available to the worldwide fleet. ECi reported that about fifteen percent of their cylinder assemblies go to foreign countries. We estimate ten percent of the remaining cylinders were never installed or are already removed from service, leaving 7,557 cylinder assemblies in service in the United States. We estimate that 1,574 Lycoming engines are in the United States with the subject cylinder assemblies installed. We estimate that it would take about two work hours per engine to perform the proposed aircraft inspections of the cylinder assemblies for applicability, and that the average labor rate is $65 per work hour. From the Lycoming Engines “Removal and Installation Labor Allowance Guidebook”, dated May 2000, the complete cylinder replacement for a four cylinder engine takes 12 hours, while the complete cylinder replacement for a six cylinder engine takes 16 hours. Required parts would cost about $1,000 per cylinder assembly. Based on these figures, we estimate the total cost of the proposed AD to U.S. operators to be $9,152,140. ECi indicated that they might give operators and repair stations credit for returned cylinder assemblies toward the purchase of new ECi cylinder assemblies.
                    ( print page 53588) 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. 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); and 3. Would 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 proposed AD. 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
Safety
 The Proposed Amendment Under the authority delegated to me by the Administrator, the Federal Aviation Administration 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. § 39.13
  2. The FAA amends § 39.13 by adding the following new airworthiness directive: **Engine Components Incorporated (ECi):**
                                 Docket No. FAA-2005-22358; Directorate Identifier 2005-NE-20-AD. Comments Due Date (a) The Federal Aviation Administration (FAA) must receive comments on this airworthiness directive (AD) action by November 8, 2005. Affected ADs (b) None. Applicability (c) This AD applies to Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, parallel valve, reciprocating engines specified in Table 1 of this AD, with Engine Components Inc. (ECi) cylinder assemblies, part number (P/N) AEL65102 series “Classic Cast”, with casting P/N AEL65099 and serial numbers (SNs) 1 through 9879, installed. Table 1.—Engine Models
Cylinder head part number
Installed on engine modelsAEL65102-NST04
O-320—A1B, A2B, A2C, A2D, A3A, A3B, B2B, B2C, B3B, B3C, C2B, C2C, C3B, C3C, D1A, D1AD, D1B, D1C, D1D, D1F, D2A, D2B, D2C, D2F, D2G, D2H, D2J, D3G, E1A, E1B, E1C, F1F, E1J, E2A, E2B, E2C, E2D, E2E, E2F, E2G, E2H, E3D, E3H.IO-320—A1A, A2A, B1A, B1B, B1C, B1D, B1E, B2A, C1B, D1A, D1AD, D1B, D1C, E1A, E1B, E2A, E2B.AEIO-320—D1B, D2A, D2B, E1A, E1B, E2B.AIO-320—A1A, A1B, A2A, A2B, B1B, C1B.LIO-320—B1A.AEL65102-NST05
O-320—C1A, C1F, F1A.LIO-320—C1A.AEL65102-NST06
O-320—A1A, A2A, A2B, A2C, A3A, A3B, A3C, E1A, E1B, E2A, E2C.AEL65102-NST07
O-320—A2A, B1A, B1B.AEL65102-NST08
O-320—C1A, C1B, C2A, C2B, C3A, C2B, C3C.AEL65102-NST10
O-360—A1A, A1C, A1D, A2A, A2E, A3A, A3D, A4A, C1A, C1C, C1G, C2A, C2B, C2C, C2D, B1A, B1B, B2A, B2B, D1A, D2A, D2B.IO-360—B1A, B1B, B1C.HO-360—A1A, B1A, B1B.HIO-360—B1A, B1B.AEIO-360—B1B.AEIO-540—A1A, A1A5, A1B5, A1C5, A1D, A1D5, A2B, A3D5, A4A5, A4B5, A4C5, A4D5, B1A5, B1B5, B1C5, B2C5D, B4A5, B4A5D, D1A5, E1A, E4A5, E4B5, E4C5, F1A5, F1B5, G1A5, G2A5.IO-540—C1B5, C1C5, C2C, C4B5, C4B5D, C4C5, D4A5, D4B5, N1A5, N1A5D.AEL65102-NST12
O-360—A1A, A1AD, A1C, A1D, A1F, A1F6, A1F6D, A1G, A1G6, A1G6D, A1H, A1H6, A1J, A1LD, A2A, A2D, A2F, A2G, A2H, A3A, A3AD, A3D, A4A, A4AD, A4D, A4G, A4J, A4JD, A4K, A4M, A4N, A5AD, B1A, C1A, C1E, C1F, C1G, C2A, C2B, C2C, C2D, C2E, D2A, F1A6, G1A6.TIO-360—A1A6D.LTO-360—A1A6D.IO-360—A1G6D, A1H6, B1B, B1BD, B1D, B1E, B1F, B1F6, B2E, B2F, B2F6, B4A, E1A, E4A, F1A.IHO-360—B1A, B1B.AEIO-360—B1B, B1D, B1F, B1F6, B1G6, B2F, B2F6, B4A, H1A.O-540—A4D5, B2B5, B2C5, B2C5D, B4B5, B4B5D, E4A5, E4B5, E4B5D, E4C5, G1A5, G1A5D, G2A5, H1A5, H1A5D, H1B5, H1B5D, H2A5, H2A5D, H2B5D.IO-540—C4A5, C4B5, C4B5D, C4D5D, D4A5, D4B5, D4C5, N1A5, T4A5, T4A5D, T4B5D, T4C5D, V4A5D.AEIO-540—D4A5, D4B5, D4C5.AEL65102-NST26
IO-540—J4A5, R1A5.TIO-540—C1A, E1A, G1A, H1A.( print page 53589)AEL65102-NST38
(T)IO-360—F1A.TIO-360—AA1AD, AB1AD, C1A, C1AD, AF1A, K1AD.LTIO-540—K1AD.AEL65102-NST38
O-540—J1A5D, J1B5D, J1C5D, J1D5D, J2A5D, J2B5D, J2C5D, J3A5, J3A5D, J3C5D.IO-540—L3C5D, W1A5D, W3A5D.AEL65102-NST44
O-540—L3C5D.
 For information, the subject engines are installed on, but not limited to, the aircraft listed in the following Table 2: Table 2.—Engines Installed On, But Not Limited To
O-320-A1A
Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Apache (PA-23), Pawnee (PA-25).Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).Mooney Aircraft: Mark (20A).Dinfia: Ranquel (1A-46).Simmering-Graz Pauker: Flamingo (SGP-M-222).Aviamilano: Scricciolo (P-19).Vos Helicopter Co.: Spring Bok.O-320-A1B
Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Apache (PA-23).Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).S.O.C.A.T.A.: Horizon (Gardan).O-320-A2A
Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Agriculture (PA-18A “150”) Super Cub (PA-18 “150”), Caribbean (PA-22 “150”), Pawnee (PA-25).Intermountain Mfg. Co.: Call Air Texas (A-5, A-5T).Lake Aircraft: Colonial (C-1).Rawdon Bros.: Rawdon (T-1, T-15, T-15D).Shinn Engineering: Shinn (2150-A).Dinfia: Ranquel (1A-46).Neiva: (1PD-5802).Sud: Gardan-Horizon (GY-80).LaVerda: Falco (F8L Series II, America).Malmo: Vipan (MF1-10).Kingsford Smith: Autocrat (SCRM-153).Aero Commander: 100.O-320-A2B
Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Cherokee (PA-28 “150”), Super Cub (PA-18 “150”).Champion Aircraft: Challenger (7GCA, 7GCB, 7KC), Citabria (7GCAA, 7GCRC), Agriculture (7GCBA).Beagle: Pup (150).Artic: Interstate S1B2.Robinson: R-22.Varga: Kachina 2150A.O-320-A2C
Robinson: R-22.Cicare: Cicare AG.Bellanca Aircraft: Citabria 150 (7GCAA), Citabria 150S (7GCBC).O-320-A2D
Piper Aircraft: Apache (PA-23).O-320-A3A
Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).Corben-Fettes: Globe Special (Globe GC-1B).O-320-A3B
Piper Aircraft: Apache (PA-23).Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).Teal II: TSC (1A2).O-320-B1A
Piper Aircraft: Apache (PA-23 “160”).Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).Malmo: Vipan (MF1-10).O-320-B1B
Piper Aircraft: Apache (PA-23 “160”).Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).O-320-B2A
Piper Aircraft: Tri-Pacer (PA-22 “160”, PA-22S “160”).O-320-B2B
Piper Aircraft: Tri-Pacer (PA-22 “160”, PA-22S “160”).Beagle: Airedale (D5-160).Fuji-Heavy Industries: Fuji (F-200).Uirapuru: Aerotec 122.O-320-B2C
Robinson: R-22.O-320-B2D
Maule: MX-7-160.O-320-B2E
Lycon.O-320-B3A
Piper Aircraft: Apache (PA-23 “160”).Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).O-320-B3B
Piper Aircraft: Apache (PA-23 “160”).Doyn Aircraft: Doyn-Cessna (170, 170A, 170B).Sud: Gardan (GY80-160).( print page 53590)O-320-C1A
Piper Aircraft: Apache (PA-23 “160”).Riley Aircraft: Rayjay (Apache).O-320-C1B
Piper Aircraft: Apache (PA-23 “160”).O-320-C3A
Piper Aircraft: Apache (PA-23 “160”).O-320-C3B
Piper Aircraft: Apache (PA-23 “160”).O-320-D1A
Sud: Gardan (GY-80).Gyroflug: Speed Cancard.Grob: G115.O-320-D1F
Slingsby: T67 Firefly.O-320-D2A
Piper Aircraft: Cherokee (PA-28S “160”).Robin: Major (DR400-140B), Chevalier(DR-360), (R-3140).S.O.C.A.T.A.: Tampico TB9.Slingsby: T67C Firefly.Daetwyler: MD-3-160.Nash Aircraft Ltd.: PetrelAviolight: P66D DeltaGeneral Avia: Pinguino.O-320-D2B
Beech Aircraft: Musketeer (M-23).Piper Aircraft: Cherokee (PA-28 “160”).O-320-D2J
Cessna Aircraft: Skyhawk 172O-320-D3G
Piper Aircraft: Warrior II, Cadet (PA-28-161).O-320-E1A
Grob: G115O-320-E1C
M.B.B. (Messerschmitt-Boelkow-Blohm): Monsun (BO-209-B).O-320-E1F
M.B.B.: Monsun (BO-209-B).O-320-E2A
Piper Aircraft: Cherokee (PA-28 “140”, PA-28 “150”).Robin: Major (DR-340), Sitar, Bagheera (GY-100-135).S.O.C.A.T.A.: Super Rallye (MS-886), Rallye Commodore (MS-892).Siai-Marchetti: (S-202).F.F.A.: Bravo (AS-202/15).Partenavia: Oscar (P66B), Bucker (131 APM).Aeromot: Paulistina P-56.Pezetel: Koliber 150.O-320-E2C
Beech Aircraft: Musketeer III (M-23III).M.B.B.: Monsun (B-209-B).O-320-E2D
Cessna Aircraft: Cardinal (172-I, 177).O-320-E2F
M.B.B.: Monsun (BO-209-B).O-320-E2G
American Aviation Corp.: TravelerO-320-E3D
Piper Aircraft: Cherokee (140).Beech Aircraft: Sport.O-320-H2AD
Cessna Aircraft: Skyhawk 172.Partenavia: P-66C.IO-320-B2A
Piper Aircraft: Twin Comanche (PA-30).IO-320-B1C
Hi. Shear: Wing.IO-320-B1D
Ted Smith Aircraft: Aerostar.IO-320-C1A
Piper Aircraft: Twin Comanche (PA-30 Turbo).IO-320-D1A
M.B.B.: Monsun (BO-209-C).IO-320-D1B
M.B.B.: Monsun (BO-209-C).IO-320-E1A
M.B.B.: Monsun (BO-209-C).IO-320-E1B
Bellanca Aircraft.IO-320-E2A
Champion Aircraft: Citabria.IO-320-E2B
Bellanca Aircraft.IO-320-F1A
CAAR Engineering: Carr Midget.LIO-320-B1A
Piper Aircraft: Twin Comanche (PA-39).LIO-320-C1A
Piper Aircraft: Twin Comanche (PA-39).AIO-320-B1B
M.B.B.: Monsun (BO-209-C).AEIO-320-D1B
Slingsby: T67M Firefly.AEIO-320-D2B
Hundustan Aeronautics Ltd.: HT-2AEIO-320-E1A
Bellanca Aircraft.Champion Aircraft.AEIO-320-E1B
Bellanca Aircraft.Champion Aircraft: Decathalon (8KCAB-CS).AEIO-320-E2B
Bellanca Aircraft.Champion Aircraft: Decathalon (8KCAB).O-320-A1A
Riley Aircraft: Riley Twin.O-360-A1A
Beech Aircraft: Travel Air (95, B-95).Piper Aircraft: Comanche (PA-24).Intermountain Mfg. Co.: Call Air (A-6).Lake Aircraft: Colonial (C-2, LA -4, 4A or 4P).Doyn Aircraft: Doyn-Cessna (170B, 172, 172A, 172B).Mooney Aircraft: Mark “20B” (M-20B).Earl Horton: Pawnee (Piper PA-25).Dinfia: Ranquel (1A-51).Neiva: (1PD-5901).( print page 53591)Regente: (N-591).Wassmer: Super 4 (WA-50A), Sancy (WA-40), Baladou (WA-40), Pariou (WA-40).Sud: Gardan (GY-180).Bolkow: (207).Partenavia: Oscar (P-66).Siai-Marchetti: (S-205).Procaer: Picchio (F-15-A).S.A.A.B.: Safir (91-D).Malmo: Vipan (MF-10B).Aero Boero: AB-180.Beagle: Airedale (A-109).DeHavilland: Drover (DHA-3MK3).Kingsford-Smith: Bushmaster (J5-6).Aero Engine Service Ltd.: Victa (R-2).O-360-A1AD
S.O.C.A.T.A.: Tabago TB-10.O-360-A1D
Piper Aircraft: Comanche (PA-24).Lake Aircraft: Colonial (LA-4, 4A or 4P).Doyn Aircraft: Doyn-Beech (Beech 95).Mooney Aircraft: Master “21” (M-20E),Mark “20B”, “20D”, (M20B, M20C),Mooney Statesman (M-20G).Dinfia: Querandi (1A-45).Wassmer: (WA-50).Malmo: Vipan (MF1-10).Cessna Aircraft: Skyhawk.Doyn Aircraft: Doyn-Piper (PA-23 “160”).O-360-A1F6
Cessna Aircraft: Cardinal.O-360-A1F6D
Cessna Aircraft: Cardinal 177.Teal III: TSC (1A3).O-360-A1G6
Aero Commander.O-360-A1G6D
Beech Aircraft: Duchess 76.O-360-A1H6
Piper Aircraft: Seminole (PA-44).O-360-A1LD
Wassmer: Europa WA-52.O-360-A1P
Aviat: Husky.O-360-A2A
Center Est Aeronautique: Regente (DR-253).S.O.C.A.T.A.: Rallye Commodore (MS-893).Societe Aeronautique Normande: Mousquetaire (D-140).Bolkow: Klemm (K1-107C).Partenavia: Oscar (P-66).Beagle: Husky (D5-180) (J1-U).O-360-A2D
Piper Aircraft: Comanche (PA-24), Cherokee “C” (PA-28 “180”).Mooney Aircraft: Master “21” (M-20D), Mark “21” (M-20E).O-360-A2E
Std. Helicopter.O-360-A2F
Aero Commander: Lark (100).Cessna Aircraft: Cardinal.O-360-A2G
Beech Aircraft: Sport.O-360-A3A
C.A.A.R.P.S.A.N.: (M-23III).Societe Aeronautique Normande: Jodel (D-140C).Robin: Regent (DR400/180), Remorqueur (DR400/180R). R-3170.S.O.C.A.T.A.: Rallye 180GT, Sportavia Sportsman (RS-180).Norman Aeroplace Co.: NAC-1 Freelance.Nash Aircraft Ltd.: Petrel.O-360-A3AD
S.O.C.A.T.A.: TB-10.Robin: Aiglon (R-1180T)O-360-A4A
Piper Aircraft: Cherokee “D” (PA-28 “180”).O-360-A4D
Varga: Kachina.O-360-A4G
Beech Aircraft: Musketeer Custom III.O-360-A4K
Grumman American: Tiger.Beech Aircraft: Sundowner 180.O-360-A4M
Piper Aircraft: Archer II (PA-28 “18”).Valmet: PIK-23.O-360-A4N
Cessna Aircraft: 172 (Optional).O-360-A4P
Penn Yan: Super Cub Conversion.O-360-A5AD
C. Itoh and Co.: Fuji FA -200.O-360-B2C
Seabird Aviation: SB7L.O-360-C1A
Intermountain Mfg. Co.: Call Air (A-6).O-360-C1E
Bellanca Aircraft: Scout (8GCBC-CS).O-360-C1F
Maule: Star Rocket MX-7-180.O-360-C1G
Christen: Husky (A-1).O-360-C2B
Hughes Tool Co.: (269A).O-360-C2D
Hughes Tool Co.: (269A).O-360-C2E
Hughes Tool Co.: (YHO-2HU) Military.Bellanca Aircraft: Scout (8GCBC FP).O-360-C4F
Maule: MX-7-180A.( print page 53592)O-360-C4P
Penn Yan: Super Cub Conversion.O-360-E1A6D
Piper Aircraft: Seminole (PA-44 “180”).O-360-F1A6
Cessna Aircraft: Cutlass RG.O-360-J2A
Robinson: R22.IO-360-B1A
Beech Aircraft: Travel-Air (B-95A).Doyn Aircraft: Doyn-Piper (PA-23 “200”).IO-360-B1B
Beech Aircraft: Travel-Air (B-95B).Doyn Aircraft: Doyn-Piper (PA-23 “200”).Fuji: (FA-200).IO-360-B1D
United Consultants: See-Bee.IO-360-B1E
Piper Aircraft: Arrow (PA-28 “180R”).IO-360-B1F
Utva: 75.IO-360-B2E
C.A.A.R.P. C.A.P. (10).IO-360-B1F6
Great Lakes: Trainer.IO-360-B1G6
American Blimp: Spector 42.IO-360-B2F6
Great Lakes: Trainer.LO-360-A1G6D
Beech Aircraft: Duchess.LO-360-A1H6
Piper Aircraft: Seminole (PA-44).IO-360-E1A
T.R. Smith Aircraft: Aerostar.IO-360-L2A
Cessna Aircraft: Skyhawk C-172.IO-360-M1A
Diamond Aircraft: DA-40.IO-360-M1B
Vans Aircraft: RV6, RV7, RV8.Lancair: 360.AIO-360-B1B
Moravan: Zlin (Z-526-L).AEIO-360-B1F
F.F.A.: Bravo (200).Grob: G115/Sport-Acro.AEIO-360-B1G6
Great Lakes.AEIO-360-B2F
Mundry: CAP-10.AEIO-360-B4A
Pitts: S-1S.AEIO-360-H1A
Bellanca Aircraft: Super Decathalon (8KCAB-180).AEIO-360-H1B
American Champion: Super Decathalon.TO-360-C1A6D
Avions Pierre Robin.Partenavia.Rockwell: 112TC.TO-360-F1A6D
Maule: Star Rocket (M-5-210TC).TIO-360-C1A6D
Partenavia: P68C-TC.VO-360-A1A
Brantly Hynes Helicopter: (B-2).VO-360-A1B
Brantly Hynes Helicopter: (B-2, B2-A).Military (YHO-3BR).VO-360-B1A
Brantly Hynes Helicopter: (B-2, B2-A).IVO-360-A1A
Brantly Hynes Helicopter: (B2-B).HO-360-B1A
Hughes Tool Co.: (269A).HO-360-B1B
Hughes Tool Co.: (269A).HO-360-C1A
Schweizer: (300C).HIO-360-B1A
Hughes Tool Co.: Military (269-A-1). (TH-55A).HIO-360-B1B
Hughes Tool Co.: (269A).HIO-360-G1A
Schweizer: (CB).O-540-A1A
Rhein-Flugzeugbau: (RF-1).O-540-A1A5
Piper Aircraft: Comanche (PA-24 “150”).Helio: Military (H-250).Yoeman Aviation: (YA-1).O-540-A1B5
Piper Aircraft: Aztec (PA-23 “250”), Comanche (PA-24 “250”).O-540-A1C5
Piper Aircraft: Comanche (PA-24 “250”).O-540-A1D
Found Bros.: (FBA-2C).Dornier: (DO-28-B1).O-540-A1D5
Piper Aircraft: Aztec (PA-23 “250”), Comanche (PA-24 “250”), Military Aztec.(U-11A).Dornier: (DO-28).O-540-A2B
Aero Commander: (500).Mid-States Mfg. Co.: Twin Courier (H-500), (U-5).O-540-A3D5
Piper Aircraft: Navy Aztec (PA-23 “250”).O-540-B1A5
Piper Aircraft: Apache (PA-23 “235”).O-540-B1B5
Piper Aircraft: Cherokee (PA-24 “250”).Doyn Aircraft: Doyn-Piper (PA-24 “250”).O-540-B1D5
Wassmer: (WA-421).O-540-B2B5
Piper Aircraft: Pawnee (PA-24 “235”), Cherokee (PA-28 “235”), Aztec (PA -23 “235”).Intermountain Mfg. Co.: Call Air (A-9).Rawdon Bros.: Rawdon (T-1).S.O.C.A.T.A.: Rallye 235CA.O-540-B2C5
Piper Aircraft: Pawnee (PA-24 “235”).O-540-B4B5
Piper Aircraft: Cherokee (PA-28 “235”).Embraer: Corioca (EMB-710).S.O.C.A.T.A.: Rallye 235GT, Rallye 235C.Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).( print page 53593)O-540-E4A5
Piper Aircraft: Comanche (PA-24 “260”).Aviamilano: Flamingo (F-250).Siai-Marchetti: (SF-260), (SF-208).O-540-E4B5
Britten-Norman: (BN-2).Piper Aircraft: Cherokee Six (PA-32 “260”).O-540-E4C5
Pilatus Britten-Norman: Islander (BN-2A-26), Islander (BN-2A-27), Islander II (BN-2B-26), Islander (BN-2A-21), Trislander (BN-2A-Mark III-2).O-540-F1B5
Omega Aircraft: (BS-12D1).Robinson: (R-44).O-540-G1A5
Piper Aircraft: Pawnee (PA-25 “260”).O-540-H1B5D
Aero Boero: 260.O-540-H2A5
Embraer: Impanema “AG”.Gippsland: GA-200.O-540-H2B5D
Aero Boero: 260.O-540-J1A5D
Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).O-540-J3A5
Robin: R-3000/235.O-540-J3A5D
Piper Aircraft: Dakota (PA-28-236).O-540-J3C5D
Cessna Aircraft: Skylane RG.O-540-L3C5D
Cessna Aircraft: TR-182, Turbo Skylane RG.IO-540-C1B5
Piper Aircraft: Aztec B (PA-23 “250”), Comanche (PA-24 “250”).IO-540-C1C5
Riley Aircraft: Turbo-Rocket.IO-540-C4B5
Piper Aircraft: Aztec C (PA-23 “250”), Aztec F.Wassmer: (WA4-21).Avions Pierre Robin: (HR100/250).Bellanca Aircraft: Aries T-250.Aerofab: Renegade 250.IO-540-C4D5
S.O.C.A.T.A.: TB-20.IO-540-C4D5D
S.O.C.A.T.A.: Trinidad TB-20.IO-540-D4A5
Piper Aircraft: Comanche (PA-24 “260”).Siai-Marchetti: (SF-260).IO-540-D4B5
Cerva: (CE-43 Guepard).IO-540-J4A5
Piper Aircraft: Aztec (PA-23 “250”).IO-540-R1A5
Piper Aircraft: Comanche (PA-24).IO-540-T4A5D
General Aviation: Model 114.IO-540-T4B5
Commander: 114B.IO-540-T4B5D
Rockwell: 114.IO-540-T4C5D
Lake Aircraft: Seawolf.IO-540-V4A5
Maule: MT-7-260, M-7-260.Aircraft Manufacturing Factory.IO-540-V4A5D
Brooklands: Scoutmaster.IO-540-W1A5
Maule: MX-7-235, MT-7-235, M7-235.IO-540-W1A5D
Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235).IO-540-W3A5D
Schweizer: Power Glider.AEIO-540-D4A5
Christen: Pitts (S-2S), S-2B).Siai-Marchetti: SF-260.H.A.L.: HPT-32.Slingsby: Firefly T3A.AEIO-540-D4B5
Moravan: Zlin-50L.H.A.L.: HPT-32.AEIO-540-D4D5
Burkhart Grob: Grob G, 115T Aero.TIO-540-C1A
Piper Aircraft: Turbo Aztec (PA-23-250).TIO-540-K1AD
Piper Aircraft.TIO-540-AA1AD
Aerofab Inc.: Turbo Renegade (270).TIO-540-AB1AD
S.O.C.A.T.A.: Trinidad TC TB-21.TIO-540-AB1BD
Schweizer.TIO-540-AF1A
Mooney Aircraft: “TLS” M20M.TIO-540-AF1B
Mooney Aircraft: “TLS” M20M.TIO-540-AG1A
Commander Aircraft: 114TC.TIO-540-AK1A
Cessna Aircraft: Turbo Skylane T182T.LTIO-540-K1AD
Piper Aircraft.
 Unsafe Condition (d) This AD results from reports of approximately 30 failures of the subject cylinder assemblies marketed by ECi. We are issuing this AD to prevent loss of engine power due to cracks in the cylinder assemblies and possible engine failure caused by separation of a cylinder head. 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. Engines Not Repaired or Overhauled since New (f) If your engine has not been overhauled or had any major repair since new, no further action is required. Engines Overhauled or Repaired since New (g) If your engine was overhauled or repaired since new, do the following: (1) Determine if ECi cylinder assemblies, P/N AEL65102 series “Classic Cast,” with casting P/N AEL65099 and SNs 1 through 9879 are installed on your engine, as follows: (i) Inspect the engine log books and maintenance records for reference to the subject ECi cylinder assemblies.
                                ( print page 53594) (ii) If the engine log books and maintenance records did not record the P/N and SN of the cylinder assemblies, visually inspect the cylinder assemblies and verify the P/N and SN of the cylinder assemblies. (2) If the cylinder assemblies are not ECi, P/N AEL65102 series “Classic Cast”, with casting P/N AEL65099, no further action is required. (3) If any cylinder assembly is an ECi P/N AEL65102 series “Classic Cast,” with casting P/N AEL65099 and a SN 1 through 9879, do the following: (i) If the cylinder assembly has fewer than 800 operating hours-in-service (HIS) on the effective date of this AD, replace the cylinder assembly at no later than 800 operating HIS. No action is required until the operating HIS reaches 800 hours. (ii) If the cylinder assembly has 800 operating HIS or more on the effective date of this AD, replace the cylinder assembly within 60 operating HIS after the effective date of this AD. Definition of a Replacement Cylinder Assembly (h) For the purpose of this AD, a replacement cylinder assembly is defined as follows: (1) A serviceable cylinder assembly made by Lycoming Engines. (2) A serviceable FAA-approved, Parts Manufacturer Approval cylinder assembly from another manufacturer. (3) A serviceable ECi cylinder assembly, P/N AEL65102 series, “Titan,” with casting P/N AEL85009. (4) A serviceable ECi cylinder assembly, P/N AEL65102 series, with casting, P/N AEL65099, that has a SN 9880 or higher. Prohibition of Cylinder Assemblies, P/N AEL65102 Series “Classic Cast,” With Casting P/N AEL65099 and SNs 1 Through 9879 (i) After the effective date of this AD, do not install any ECi cylinder assembly, P/N AEL65102, with casting P/N AEL65099 that has a SN 1 through 9879, onto any engine. Alternative Methods of Compliance (j) The Manager, Special Certification Office, has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19.
 Issued in Burlington, Massachusetts, on September 2, 2005. Ann C. Mollica, Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service.


[FR Doc. 05-17893 Filed 9-8-05; 8:45 am] BILLING CODE 4910-13-P