AD 70-13-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Continental Motors | TSIO-520-C | CONTINENTAL Model TSIO-520-C Engines |
Unsafe Condition
Hydraulic lock and resulting engine damage and power loss
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the Teledyne Continental Motors Part Number 633125 balance tube assembly with Part Number 635645 and install associated aircraft installation drainage provisions per Cessna Service Kit SK206-10 or an equivalent method approved by the FAA.
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Compliance Time
within the next 12 months after the effective date of this AD
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Affected Aircraft
Continental Motors TSIO-520-C engines (Serial Numbers 140001 through 140678) installed in Cessna Model TU206, TP206, and T210 airplanes
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Federal Register Abstract
Hydraulic Lock
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-13-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-13-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: CONTINENTAL Model TSIO-520-C Engines Subject: Hydraulic Lock Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/02/1970 Make: Continental Motors Model: TSIO-520-C Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 70-13-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1017 AD NUMBER: 70-13-03 SUBJECT HEADING: CONTINENTAL Model TSIO-520-C Engines ACTION: SUMMARY: DATES: Effective July 2, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-13-03 CONTINENTAL: Amendment 39-1017. Applies to Continental Model TSIO-520-C (Serial Numbers 140001 through 140678) engines installed in Cessna Model TU206, TP206 and T210 airplanes. Compliance: Unless already accomplished, within the next 12 months after the effective date of this AD, accomplish the following: To prevent hydraulic lock and resulting engine damage and power loss: Replace the presently installed Teledyne Continental Motors Part Number 633125 balance tube assembly with new Teledyne Continental Motors Part Number 635645 balance tube assembly and install associated aircraft installation drainage provisions in accordance with Cessna Service Kit SK206-10, or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region, Kansas City, Missouri. Teledyne Continental Motors Service Bulletin M70-5 dated May 6, 1970, also pertains to this subject. This amendment becomes effective July 2, 1970. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_70-13-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-13-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: CONTINENTAL Model TSIO-520-C Engines Subject: Hydraulic Lock Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/02/1970 Make: Continental Motors Model: TSIO-520-C 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: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 70-13-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1017 AD NUMBER: 70-13-03 SUBJECT HEADING: CONTINENTAL Model TSIO-520-C Engines ACTION: SUMMARY: DATES: Effective July 2, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-13-03 CONTINENTAL: Amendment 39-1017. Applies to Continental Model TSIO-520-C (Serial Numbers 140001 through 140678) engines installed in Cessna Model TU206, TP206 and T210 airplanes. Compliance: Unless already accomplished, within the next 12 months after the effective date of this AD, accomplish the following: To prevent hydraulic lock and resulting engine damage and power loss: Replace the presently installed Teledyne Continental Motors Part Number 633125 balance tube assembly with new Teledyne Continental Motors Part Number 635645 balance tube assembly and install associated aircraft installation drainage provisions in accordance with Cessna Service Kit SK206-10, or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region, Kansas City, Missouri. Teledyne Continental Motors Service Bulletin M70-5 dated May 6, 1970, also pertains to this subject. This amendment becomes effective July 2, 1970. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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