AD 81-23-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Continental Motors | LTSIO-360-EB | TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines |
| engine | Continental Motors | LTSIO-360-KB | TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines |
| engine | Continental Motors | TSIO-360-EB | TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines |
| engine | Continental Motors | TSIO-360-GB | TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines |
| engine | Continental Motors | TSIO-360-KB | TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines |
Unsafe Condition
Failure of the oil filter adapter gasket due to possible intrusion of the machined alternator relief cutout into the shoulder of the oil filter adapter flange.
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Required Actions
Inspect the oil filter adapter flange at the machined alternator relief cutout per TCM Special Service Notice 10-81. Replace the adapter with a serviceable part meeting inspection criteria if the cutout intrudes into the shoulder. Record compliance in maintenance records.
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Compliance Time
prior to further flight after receipt of this letter
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Affected Aircraft
Teledyne Continental Motors Models TSIO-360-EB (S/N 311703 and 311704), LTSIO-360-EB (S/N 312685), TSIO-360-KB (S/N 315204, 315209-315259, 315262-315274, 315277, 315283, 315284, 315323), LTSIO-360-KB (S/N 314195, 314204, 314208-314274, 314276, 314277), and TSIO-360-GB (S/N 309600, 309601, 309603-309618, 309622-309627, 309629-309641, 309655)
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Oil Filter Adapter Gasket
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_81-23-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-23-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines Subject: Oil Filter Adapter Gasket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Continental Motors Model: LTSIO-360-EB | LTSIO-360-KB | TSIO-360-EB | TSIO-360-GB | TSIO-360-KB Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-23-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 81-23-02 SUBJECT HEADING: TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-23-02 TELEDYNE CONTINENTAL MOTORS: Letter issued October 30, 1981. Applies to Teledyne Continental Motors Models TSIO-360-EB, S/N 311703 and 311704; LTSIO-360-EB, S/N 312685; TSIO-360- KB, S/N 315204, 315209 through 315259, 315262 through 315274, 315277, 315283, 315284, and 315323; LTSIO-360-KB, S/N 314195, 314204, 314208 through 314274, 314276, and 314277; and TSIO-360-GB, S/N 309600, 309601, 309603 through 309618, 309622 through 309627, 309629 through 309641 and 309655 aircraft engines. Compliance required prior to further flight after receipt of this letter. To prevent possible failure of the oil filter adapter gasket, accomplish the following: (a) Inspect the oil filter adapter (TCM P/N 641576) flange at the machined alternator relief cutout in accordance with the inspection procedure described in TCM Special Service Notice 10-81, dated October 19, 1981. (b) If the machined alternator relief cutout intrudes into the shoulder (no matter how little), replace the adapter TCM P/N 641576 with a serviceable part which meets the inspection criteria of TCM Special Service Notice 10-81. (c) Make appropriate maintenance record entries indicating compliance with this AD. An equivalent method of compliance may be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region, P.O. Box 20636, Atlanta, Georgia 30320. Teledyne Continental Motors Special Service Notice 10-81, dated October 19, 1981, applies to this subject. This Airworthiness Directive becomes effective upon receipt. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_81-23-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-23-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines Subject: Oil Filter Adapter Gasket Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Continental Motors Model: LTSIO-360-EB | LTSIO-360-KB | TSIO-360-EB | TSIO-360-GB | TSIO-360-KB Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-23-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 81-23-02 SUBJECT HEADING: TELEDYNE CONTINENTAL MOTORS Models TSIO-360-EB, LTSIO-360-EB, TSIO-360-KB, LTSIO-360-KB, TSIO-360-GB Engines ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-23-02 TELEDYNE CONTINENTAL MOTORS: Letter issued October 30, 1981. Applies to Teledyne Continental Motors Models TSIO-360-EB, S/N 311703 and 311704; LTSIO-360-EB, S/N 312685; TSIO-360- KB, S/N 315204, 315209 through 315259, 315262 through 315274, 315277, 315283, 315284, and 315323; LTSIO-360-KB, S/N 314195, 314204, 314208 through 314274, 314276, and 314277; and TSIO-360-GB, S/N 309600, 309601, 309603 through 309618, 309622 through 309627, 309629 through 309641 and 309655 aircraft engines. Compliance required prior to further flight after receipt of this letter. To prevent possible failure of the oil filter adapter gasket, accomplish the following: (a) Inspect the oil filter adapter (TCM P/N 641576) flange at the machined alternator relief cutout in accordance with the inspection procedure described in TCM Special Service Notice 10-81, dated October 19, 1981. (b) If the machined alternator relief cutout intrudes into the shoulder (no matter how little), replace the adapter TCM P/N 641576 with a serviceable part which meets the inspection criteria of TCM Special Service Notice 10-81. (c) Make appropriate maintenance record entries indicating compliance with this AD. An equivalent method of compliance may be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region, P.O. Box 20636, Atlanta, Georgia 30320. Teledyne Continental Motors Special Service Notice 10-81, dated October 19, 1981, applies to this subject. This Airworthiness Directive becomes effective upon receipt. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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