# AD 2002-19-03: Crankshaft - Type: Airworthiness directive - Status: Current - Products: Lycoming Engines IO-540-A1A5, IO-540-AA1A5, IO-540-AA1B5, IO-540-AB1A5, IO-540-AC1A5, IO-540-AE1A5, IO-540-B1A5, IO-540-B1B5, IO-540-B1C5, IO-540-C1B5, IO-540-C1C5, IO-540-C2C and 72 more - Effective: September 20, 2002 - Published: September 20, 2002, 67 FR 59139–59156 - Issued: September 16, 2002 - Issued as: Final rule, request for comments - Supersedes: [AD 2002-17-53](https://openairdocs.org/ad/2002-17-53) - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-12883 - Docket: 2002-NE-03-AD - Registered aircraft: 12,714 may be affected, by airframe or engine model (OpenAirDocs) - Official PDF: https://openairdocs.org/files/sha256/e8/99/e899b9ef33d0844e304e3e15d5fc5595878ed02653581fde7e5c3ef6c45b2dbf (from https://www.govinfo.gov/content/pkg/FR-2002-09-20/pdf/02-24030.pdf) - Federal Register: https://www.federalregister.gov/documents/2002/09/20/02-24030/airworthiness-directives-textron-lycoming-io-540-ltio-540-and-tio-540-series-reciprocating-engines - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0E6E28095FBF913F86256C3A0055AE3F.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/2002-19-03 ## Summary This amendment supersedes emergency airworthiness directive (AD) 2002-17-53 that was sent previously to all known U.S. owners and operators of Textron Lycoming LTIO-540 and TIO-540 series engines, rated at 300 horsepower (HP) or higher. That action requires, before further flight, replacing certain serial-numbered crankshafts that were hammer forged with crankshafts that were press forged. That AD was prompted by reports of crankshaft failures in LTIO-540 and TIO-540 engines, rated at 300 HP or higher. This amendment expands the suspect population of engines to include engines with crankshafts that were manufactured between March 1997 and the present and all IO-540 engines with crankshafts that were manufactured between March 1997 and the present that have been modified by supplemental type certificate (STC) by installing a turbocharger system. The actions specified by this AD are intended to prevent failure of the crankshaft, which could result in total engine power loss, in-flight engine failure and possible forced landing. ## The airworthiness directive 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: 1. The authority citation for part 39 continues to read as follows: 2. Section 39.13 is amended by adding the following new airworthiness directive: 2002-19-03 Textron Lycoming: Amendment 39-12883. Docket No. 2002-NE-03-AD. Supersedes Emergency AD 2002-17-53. ### Applicability This AD is applicable to all Textron Lycoming LTIO-540 and TIO-540 engines, rated at 300 horsepower (HP) or greater and all IO-540 engines, rated at any HP, that have been modified by supplemental type certificate (STC) listed in Table 1 of this AD, by installing a turbocharger system. These engines are used on, but not limited to Piper Navajo (PA 31, PA 31-350, and PA 31-325), Piper Saratoga (PA 32-301T, PA 32R-301T), Piper Aerostar (PA 60-700P), Piper Malibu Mirage (PA 46-350P), Piper Mojave (PA 31P-350) Appalachian Aircraft Corporation Gavilan (EL-1), and Cessna T-206 airplanes.Table 1 follows: *Table 1.—List of STC Numbers* | | | | | | --- | --- | --- | --- | | SA000214DE | SA00356DE | SA01925AT | SA09650SC | | SA469NE | SA2062WE | SA2118NM | SE2122WE | | SA2123NM | SA257CE | SA2657WE | SA2082WE | | SA305SO | SA3513WE | SA3719SW | SA385WE | | SA4942NM | SA529WE | SA530WE | SA539WE | | SA5699NM | SA811WE | SA840WE | SA909WE | | SA978WE | SE00357DE | SE01949AT | SE1657NM | | SE978NM | SE17WE | SE21WE | SE22WE | | SE4157NM | SE5869SW | SE40WE | SE60WE | | SE6WE | SE7734SW | SE81WE | SA01925AT | | SA1648NM | SA4156NM | SA1747CE | SE4941NM | | SA2656WE | SA000214DE | | | Note 1: This AD applies to each engine 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 engines 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 (g) 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 Compliance with this AD is required as indicated unless already done. To prevent crankshaft failure, which could result in total engine power loss, in-flight engine failure and possible forced landing, do the following: ### (a) LTIO-540 Engines, TIO-540 Engines, Rated at 300 HP or Greater (a) If your engine SN is listed in Table 1 of Lycoming Mandatory Service Bulletin (MSB) No. 552, dated August 16, 2002, remove the crankshaft before further flight. (b) If your engine SN is listed in Table 2 of this AD, do the following; Table 2 follows: [graphic omitted; see the official PDF] (1) Contact Lycoming, 652 Oliver Street, Williamsport, PA 17701, U.S.A.; telephone (570) 323-6181, within 10 hours time-in-service (TIS) to arrange for a crankshaft material test. (2) Operation of the engine beyond 10 hours TIS after the effective date of this AD or while the material is being tested is not permitted. (3) If your crankshaft fails the material testing, remove the crankshaft before further flight. (4) If your crankshaft passes the material testing, the crankshaft may be returned to service. (c) If your engine SN is listed in Table 3 of this AD, do the following; Table 3 follows: [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] (1) Contact Lycoming, 652 Oliver Street, Williamsport, PA 17701, U.S.A.; telephone (570) 323-6181, contact Lycoming, 652 Oliver Street, Williamsport, PA 17701, U.S.A.; telephone (570) 323-6181 within 50 hours time-in-service (TIS) or 6 months after the effective date of this AD, whichever occurs earlier, to arrange for a crankshaft material test. (2) Operation of the engine beyond 50 hours TIS or 6 months after the effective date of this AD, whichever occurs earlier, or while the material is being tested is not permitted. (3) If your crankshaft fails the material testing, remove the crankshaft before further flight. (4) If your crankshaft passes the material testing, the crankshaft may be returned to service. ### (d) IO-540 Engines Modified by STC by Installing a Turbocharger System and All Engines That Have Been Overhauled (d) If your engine was manufactured, overhauled or had the crankshaft replaced after March 1, 1997, and your engine SN is not covered in paragraphs (a), (b), or (c) of this AD, do the following: (1) Determine the SN of your crankshaft. (2) If your crankshaft SN is listed in Table 2 of Lycoming MSB 552, dated August 16, 2002, remove the crankshaft before further flight. (3) If your crankshaft SN is listed in Table 4 of this AD, do the following; Table 4 follows: [graphic omitted; see the official PDF] (i) Contact Lycoming, 652 Oliver Street, Williamsport, PA 17701, U.S.A.; telephone (570) 323-6181, within 10 hours time-in-service (TIS) to arrange for a crankshaft material test. (ii) Operation of the engine beyond 10 hours TIS after the effective date of this AD or while the material is being tested is not permitted. (iii) If your crankshaft fails the material testing, remove the crankshaft before further flight. (iv) If your crankshaft passes the material testing, the crankshaft may be returned to service. (4) If your crankshaft SN is listed in Table 5 of this AD, do the following; Table 5 follows: [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] [graphic omitted; see the official PDF] (i) Contact Lycoming, 652 Oliver Street, Williamsport, PA 17701, U.S.A.; telephone (570) 323-6181, contact Lycoming, 652 Oliver Street, Williamsport, PA 17701, U.S.A.; telephone (570) 323-6181 within 50 hours time-in-service (TIS) or 6 months after the effective date of this AD, whichever occurs earlier, to arrange for a crankshaft material test. (ii) Operation of the engine beyond 50 hours TIS or 6 months after the effective date of this AD, whichever occurs earlier, or while the material is being tested is not permitted. (iii) If your crankshaft fails the material testing, remove the crankshaft before further flight. (iv) If your crankshaft passes the material testing, the crankshaft may be returned to service. ### (e) Disposition of Crankshafts That Have Passed the Material Test (e) A crankshaft that has passed the Lycoming material testing may be returned to service. ### (f) Disposition of Crankshafts That Have Failed the Material Test (f) After the effective date of this AD, do not install in any engine, any crankshaft that has failed the material test. ### (g) Denial of Alternative Methods of Compliance (g) An alternative method of compliance to perform material testing on crankshafts listed by SN in Table 2 of Lycoming MSB 552, dated August 16, 2002, will not be approved. ### (h) Special Flight Permits (h) Special flight permits may be issued in accordance with §§ 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 done. ### (i) Documents That Have Been Incorporated By Reference (i) The actions must be done in accordance with the following Lycoming Mandatory Service Bulletin No. 552, dated August 16, 2002. 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 Lycoming, 652 Oliver Street, Williamsport, PA 17701, U.S.A. Copies may be inspected at the FAA, New England Region, Office of the Regional 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. ### (j) Effective Date (j) This amendment becomes effective September 20, 2002. ## Rule preamble ### Dates Effective September 20, 2002. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of September 20, 2002. Comments for inclusion in the Rules Docket must be received on or before November 19, 2002. ### Addresses Submit comments in triplicate to the Federal Aviation Administration (FAA), New England Region, Office of the Regional Counsel, Attention: Rules Docket No. 2002-NE- 03-AD, 12 New England Executive Park, Burlington, MA 01803-5299. Comments may be inspected at this location, by appointment, between 8 a.m. and 4:30 p.m., Monday through Friday, except Federal holidays. Comments may also be sent via the Internet using the following address: “ 9-ane-adcomment@faa.gov ”. Comments sent via the Internet must contain the docket number in the subject line. ### For further information contact Rocco Viselli or Norm Perenson, Aerospace Engineer, New York Aircraft Certification Office, FAA, Engine and Propeller Directorate, 10 Fifth Street, Third Floor, Valley Stream, NY 11581-1200; telephone (516) 256-7531 or (516) 256-7537; fax (516) 568-2716. ### SUPPLEMENTARY INFORMATION On August 16, 2002, the FAA issued emergency AD 2002-17-53, applicable to Textron Lycoming LTIO-540 and TIO-540 series engines, rated at 300 HP or higher, to supersede emergency AD 2002-04-51 issued on February 11, 2002. AD 2002-17-53 requires replacing certain crankshafts that were manufactured using a hammer-forged process with crankshafts that were manufactured using a press-forged process. That action was prompted by reports of 17 crankshaft failures in LTIO-540 and TIO-540 engines, rated at 300 HP or higher, which were assembled with certain crankshafts that were manufactured using a hammer-forged process. The FAA is continuing the investigation into the cause of the crankshaft failures, and further regulatory action may follow. This action is prompted by an additional crankshaft failure that was outside the population of crankshafts covered by AD 2002-17-53. This AD requires the same replacement of certain crankshafts before further flight, and includes material testing of certain crankshafts manufactured between March 1997 and the present. This AD also expands the applicability to include all IO-540 engines with crankshafts that were manufactured between March 1997 and the present that have been modified by STC by installing a turbocharger system. This condition, if not corrected, could result in crankshaft failure, which could result in total engine power loss, in-flight engine failure and possible forced landing. ### Manufacturer's Service Information The FAA has reviewed the technical contents of Lycoming Mandatory Service Bulletin (MSB) No. 552, dated August 16, 2002, that provide tables of the affected engine and crankshaft serial numbers (SN's). ### FAA's Determination of an Unsafe Condition and Required Actions Since an unsafe condition has been identified that is likely to exist or develop on other Textron Lycoming LTIO-540 and TIO-540 engines, rated at 300 HP or higher, and on IO-540 engines that have been modified by STC by installing a turbocharger system with certain crankshafts installed, this AD requires removal of certain crankshafts before further flight and material testing of certain other crankshafts. ### Immediate Adoption of This AD Since it was found that immediate corrective action was required, notice and opportunity for prior public comment thereon were impracticable and contrary to the public interest, and good cause existed to make the AD effective immediately on August 16, 2002, to all known U.S. owners and operators of Textron Lycoming LTIO-540 and TIO-540 engines, rated at 300 HP or higher. These conditions still exist, and the AD is hereby published in the Federal Register as an amendment to Section 39.13 of part 39 of the Federal Aviation Regulations (14 CFR part 39) to make it effective to all persons. ### 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 No. 2002-NE-03-AD.” The postcard will be date stamped and returned to the commenter. ### Regulatory Analysis This final rule does not have federalism implications, as defined in Executive Order 13132, because it 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. Accordingly, the FAA has not consulted with state authorities prior to publication of this final rule. 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. ## Affected data sheets (2) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 1E4](https://openairdocs.org/tcds/1E4): Lycoming Engines; names 71 of 81 models: IO-540-L1A5D, IO-540-L1C5, IO-540-M2A5D, IO-540-A1A5, IO-540-W1A5, IO-540-AA1B5, IO-540-B1C5, IO-540-K1J5D… - [TCDS E14EA](https://openairdocs.org/tcds/E14EA): Lycoming Engines; names 13 of 40 models: LTIO-540-F2BD, TIO-540-J2BD, TIO-540-J2B, TIO-540-A2C, TIO-540-F2BD, TIO-540-AH1A, TIO-540-S1AD, TIO-540-U2A… ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 12,714 (0 by airframe model, 12,714 by engine model) - Makers: Piper 5,861, Cessna 2,238, Robinson Helicopter 1,340, Textron 337, Maule 293, Socata 238, Mooney 224, Rockwell International 190, Aero Commander 142, Smith 140 Models with the most aircraft: - [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series): 4,886 aircraft (engine model) - [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series): 4,219 aircraft (engine model) - [Lycoming IO-540-AE1A5](https://openairdocs.org/engine/lycoming-io-540-ae1a5): 1,040 aircraft (engine model) - [Lycoming IO-540-AB1A5](https://openairdocs.org/engine/lycoming-io-540-ab1a5): 773 aircraft (engine model) - [Lycoming TIO-540-AE2A](https://openairdocs.org/engine/lycoming-tio-540-ae2a): 488 aircraft (engine model) - [Lycoming IO-540-D4A5](https://openairdocs.org/engine/lycoming-io-540-d4a5): 237 aircraft (engine model) - [Lycoming TIO-540 series](https://openairdocs.org/engine/lycoming-tio-540-series): 190 aircraft (engine model) - [Lycoming IO-540-C4B5](https://openairdocs.org/engine/lycoming-io-540-c4b5): 179 aircraft (engine model) - [Lycoming TIO-540-AH1A](https://openairdocs.org/engine/lycoming-tio-540-ah1a): 90 aircraft (engine model) - [Lycoming IO-540-K1G5D](https://openairdocs.org/engine/lycoming-io-540-k1g5d): 52 aircraft (engine model) - [Lycoming IO-540-AC1A5](https://openairdocs.org/engine/lycoming-io-540-ac1a5): 50 aircraft (engine model) - [Lycoming IO-540-K1G5](https://openairdocs.org/engine/lycoming-io-540-k1g5): 48 aircraft (engine model) - [Lycoming IO-540-K1A5](https://openairdocs.org/engine/lycoming-io-540-k1a5): 44 aircraft (engine model) - [Lycoming IO-540-V4A5D](https://openairdocs.org/engine/lycoming-io-540-v4a5d): 39 aircraft (engine model) - [Lycoming IO-540-C4D5D](https://openairdocs.org/engine/lycoming-io-540-c4d5d): 31 aircraft (engine model) - [Lycoming IO-540-W1A5](https://openairdocs.org/engine/lycoming-io-540-w1a5): 31 aircraft (engine model) - [Lycoming IO-540-G1D5](https://openairdocs.org/engine/lycoming-io-540-g1d5): 26 aircraft (engine model) - [Aerosport IO-540-D4A5](https://openairdocs.org/engine/aerosport-io-540-d4a5): 25 aircraft (engine model) - [Lycoming TIO-540-J2BD](https://openairdocs.org/engine/lycoming-tio-540-j2bd): 24 aircraft (engine model) - [Lycoming IO-540-L1C5](https://openairdocs.org/engine/lycoming-io-540-l1c5): 18 aircraft (engine model) All 62 models: https://openairdocs.org/ad/2002-19-03/models.md Every aircraft: https://openairdocs.org/ad/2002-19-03/aircraft.md ## Related documents - [AD 2002-17-53](https://openairdocs.org/ad/2002-17-53) (historical): Crankshaft · Lycoming Engines LTIO-540-F2BD, LTIO-540-J2B, LTIO-540-J2BD and 36 more. Replaced by this AD - [STC SA00356DE](https://openairdocs.org/stc/SA00356DE): Installation of modified Textron Lycoming engine equipped with turbo normalizing system.. Fly In Vacations, Named in the applicability - [STC SA01925AT](https://openairdocs.org/stc/SA01925AT): Data pertaining to this modification is considered inadequate for duplication in other aircraft. Limited to installation made on model F260, serial number 105. Installation of Lycoming model IO-540-D4A5 engine with turbonormalization system installed with STC SE01949AT.. Mechanical Systems Inc, Named in the applicability - [STC SA09650SC](https://openairdocs.org/stc/SA09650SC): Installation of Textron Lycoming IO-540 engine modified by STC SE7734SW.. Shauck Dr Maxwell E Jr., Named in the applicability - [STC SA1648NM](https://openairdocs.org/stc/SA1648NM): Installation of Lycoming engine O-320-H2AD S/N L-1455-76 and other related systems. James A Lehman, Named in the applicability - [STC SA1747CE](https://openairdocs.org/stc/SA1747CE): Installation of 300 hp. Lycoming IO-540-K1G5 engine and Hartzell HC-C3YR-1()F/8468A or HC-C2YK-( )F/F8475R propeller.. Anderson Clinton, Named in the applicability - [STC SA2062WE](https://openairdocs.org/stc/SA2062WE): Installation of Lycoming IO-540-R1A5 engine and Rajay turbosuperchargers.. Piper Aircraft Corporation, Named in the applicability - [STC SA2082WE](https://openairdocs.org/stc/SA2082WE): Installation of two Lycoming TIO-540-A2B, or N2BD turbocharged engines and two Hartzell HC-E3YR-2/C8468-6R or -8R or 2ALF propellers. Javelin Conversions Inc., Named in the applicability - [STC SA2118NM](https://openairdocs.org/stc/SA2118NM): Installation of a Lycoming TIO-540- J2BD or 72B engine, AiResearch Model THO8A60 turbocharger, Hartzell HC-C3YR-1RF/F7854 (three blade) propeller, Hartzell Model F4-13 governor and associated systems. (185, 185A, 185B, 185C, 185D, 185E, A185E, A185F LAND PLANE; FLOATPLANE; AMPHIBIAN). Turbotech Inc, Named in the applicability - [STC SA2123NM](https://openairdocs.org/stc/SA2123NM): Installation of Lycoming TIO-540-J2BD engine AiResearch Model THO8A60 Turbocharger, Hartzell HC-C3YR-1RF/F7854 (Three-Blade) propeller, Hartzell Model F4-13 Governor and associated Systems. NOTE: This approval is also extended to airplanes of these models that have incorporated the aileron droop system per STC SA1513WE and Flint Aero Wing Tip Tanks per STC SA43689WE.. PSA Commerce & Services LLC, Named in the applicability - [STC SA257CE](https://openairdocs.org/stc/SA257CE): Installation of turbocharged Lycoming engines, Model IO-540-A1A5 with Hartzell HC-A3VK-2/V7636D propellers.. TALCO Aviation, Named in the applicability - [STC SA2657WE](https://openairdocs.org/stc/SA2657WE): Installation of turbocharged Lycoming 1O-540-K1B5 engines. TALCO Aviation Corp. dba RAJAY Turbo Products, Named in the applicability - [STC SA305SO](https://openairdocs.org/stc/SA305SO): Installation of Lycoming IO-540-C2C engines, 31A10 Rajay turbochargers, and modified fuel system. TALCO Aviation, Named in the applicability - [STC SA3513WE](https://openairdocs.org/stc/SA3513WE): Installation of Roto-Master (Rajay) turbocharged Lycoming IO-540-K1G5D engine.. TALCO Aviation, Named in the applicability - [STC SA3719SW](https://openairdocs.org/stc/SA3719SW): Installation of Lycoming IO-540-AA1A5 engines, Hartzell HC-CY-2UF/FC-8468/8R propellers and two Ray-Jay 103599-02 turbochargers on each engine to maintain maximum continuous cruise power. (PA-60-601 (AEROSTAR 601) B). Mexia Systems, Inc, Named in the applicability - [STC SA385WE](https://openairdocs.org/stc/SA385WE): Installation of turbocharged Lycoming IO-540-A1A5 engines. TALCO Aviation, Named in the applicability - [STC SA4156NM](https://openairdocs.org/stc/SA4156NM): Installation of Meryln Products, Inc. Induction Air Intercooler System(STC No. SA4009NM), new Rotomaster ME60 turbochargers and Hartzell HC-C3YR-2UF/FC6660 or HC-C3YR-2UF/ FC8468(D)-8 propeller.. Merlyn Products Inc., Named in the applicability - [STC SA469NE](https://openairdocs.org/stc/SA469NE): Installation of Lycoming turbocharged engine model TIO-540-AA1AD in accordance with Lake Aircraft Drawing List 250T, Revision E or later Federal Aviation Administration (FAA) approved revision.. Revo Inc, Named in the applicability - [STC SA4942NM](https://openairdocs.org/stc/SA4942NM): Install Lycoming IO-540-AA1A5 or IO-540-S1A5(AE) engine as modified by STC SE4941NM with Rotormaster 600846-01/-02 or600803-01/-02 turbochargers.. Merlyn Products Inc., Named in the applicability - [STC SA529WE](https://openairdocs.org/stc/SA529WE): Installation of turbosupercharged Lycoming IO-540 series engines.. RPM Commander LLC, Named in the applicability - [STC SA530WE](https://openairdocs.org/stc/SA530WE): Installation of Rajay turbosuper- charged Lycoming IO-540-C1B5 or C1C5 engines.. Rajay Industries Inc, Named in the applicability - [STC SA539WE](https://openairdocs.org/stc/SA539WE): Installation of Turbocharged Lycoming IO-540-C1B5 or IO-540- C1C5 engines. TALCO Aviation, Named in the applicability - [STC SA5699NM](https://openairdocs.org/stc/SA5699NM): nstallation of a II Morrow Navigation Management System (NMS) consisting of two Apollo Model 2001 Navigation Management Computers, two Apollo Model 2010 Multi-Chain Loran-C Sensors, one Apollo Model 2020 Global Positioning System (GPS) Sensor, one Apollo Model 2030 Fuel/Air Data Sensor, and one Apollo Altitude Encoder, in accordance with II Morrow Apollo NMS Document PD0433, Revision B, dated March 20, 1992, Revision C, dated May 22, 1992, or later FAA approved revision.. Garmin AT Inc., Named in the applicability - [STC SA811WE](https://openairdocs.org/stc/SA811WE): Installation of turbocharged Lycoming IO-540-C1B5 or -C1C5 engine.. TALCO Aviation, Named in the applicability - [STC SA840WE](https://openairdocs.org/stc/SA840WE): Installation of Roto-Master (Rajay) Turbo-charged Lycoming IO-540-C4B5 or -C4C5 engines. (PA-E23-250 SN 27-2505 and up). TALCO Aviation, Named in the applicability - [STC SA909WE](https://openairdocs.org/stc/SA909WE): Installation of turbosupercharged Lycoming IO-540-J4A5 engines. (PA-E23-250 SN 27-2505 and up). GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services, Named in the applicability - [STC SA978WE](https://openairdocs.org/stc/SA978WE): Installation of turbosupercharged Lycoming O-540-C4B5 engines. Approved for serial numbers 27-2505 and subsequent.. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services, Named in the applicability - [STC SE00357DE](https://openairdocs.org/stc/SE00357DE): Modification to Textron Lycoming engine for the installation of turbonormalizing system.. Fly In Vacations, Named in the applicability - [STC SE01949AT](https://openairdocs.org/stc/SE01949AT): Engine modification to convert Lycoming model O-540-D4A5 and install engine turbonormalization systme which includes 2 ea. Rotomaster model 30T5FF10J2 turbochargers (part number 600572-00) and 1 ea. Harrison Intercooler (part number KA-128).. K-Aero, Named in the applicability - [STC SE1657NM](https://openairdocs.org/stc/SE1657NM): Installation of Rotomaster3AU2ME60H3 (or H2) and3AV2ME60H3 (or H2), turbo- chargers, optional intercooler and associated systems.. Machen Inc, Named in the applicability - [STC SE17WE](https://openairdocs.org/stc/SE17WE): Installation of AiResearch Turbosupercharger 406330.. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services, Named in the applicability - [STC SE21WE](https://openairdocs.org/stc/SE21WE): Installation of Turbosupercharger 406610-3.. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services, Named in the applicability - [STC SE22WE](https://openairdocs.org/stc/SE22WE): Installation of AiResearch Turbosupercharger 406610-3. Approved for IO-540-J4A5 model.. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services, Named in the applicability - [STC SE40WE](https://openairdocs.org/stc/SE40WE): Installation of two Roto-Master Turbochargers Model No. 3DT5FF10J2, P/N 600572-00 (formerly Rayjay Model No. 315F10 P/N RJ0080-100, -101, or - 102). TALCO Aviation, Named in the applicability - [STC SE4157NM](https://openairdocs.org/stc/SE4157NM): Installation of modified turbochargers, controller, wastegate actuator and link, scavenge pump and manifold pressure relief valves.. Merlyn Products Inc., Named in the applicability - [STC SE4941NM](https://openairdocs.org/stc/SE4941NM): Install low-compression pistons, new fuel servo and new fuel pump.. Merlyn Products Inc., Named in the applicability - [STC SE5869SW](https://openairdocs.org/stc/SE5869SW): Install turbosupercharger.. Desert Wind Air Service, Named in the applicability - [STC SE60WE](https://openairdocs.org/stc/SE60WE): Installation of two Rajay Turbochargers P/N RJ 0327-1 or -2 and 9 lb. Sonic nozzle.. TALCO Aviation, Named in the applicability - [STC SE6WE](https://openairdocs.org/stc/SE6WE): Installation of two Roto-Master Turbochargers Model No. 3DT5FF10J2, P/N 600572-00 (formerly Rajay Model 315F10, P/N RJ0080-100, or 102). TALCO Aviation, Named in the applicability - [STC SE7734SW](https://openairdocs.org/stc/SE7734SW): Modification of engine for operation with ethanol fuel.. Shauck Dr Maxwell E Jr., Named in the applicability - [STC SE81WE](https://openairdocs.org/stc/SE81WE): Installation of two Rajay turbo- chargers, Model 325EF80, P/N 0330-1 and -2, and 9 lb. +- 1 lb. sonic nozzle on Lycoming engine Model IO-540-S1A5.. Aerostar Aircraft Corporation, Named in the applicability No proposed rule in this release led to it. ## NTSB investigations that cite this AD (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB LAX04LA039](https://openairdocs.org/ntsb/LAX04LA039), Nov 11, 2003: Zivko Edge 540-T (N540RC), King City, CA, substantial damage. Probable cause: The after market manufacturer's improper application of a crankshaft , which exceeded the original manufacturer's intended use. A factor in the accident was the oil covering the windscreen, which… --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.