AD 70-10-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 172I | Airworthiness Directives; CESSNA Model 172I and 172K Airplanes |
| aircraft | Cessna Aircraft Company | 172K | Airworthiness Directives; CESSNA Model 172I and 172K Airplanes |
Unsafe Condition
Failure of the metal oil pressure instrument line between the engine and the firewall can cause loss of engine oil.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the metal oil pressure instrument line with a flexible hose assembly following Cessna Service Letter No. SE70-10 or Supplement No. 1, or an approved method.
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Compliance Time
Within 50 hours' time in service from June 1, 1970, but by no later than June 30, 1970
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Affected Aircraft
Cessna Model 172I (Serial Numbers 17256513 through 17257161) and 172K (Serial Numbers 17256493, and 17257162 through 17259043)
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Federal Register Abstract
Oil Pressure Instrument Line
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-10-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-10-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 172I and 172K Airplanes Subject: Oil Pressure Instrument Line Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Cessna Aircraft Company Model: 172I | 172K Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 70-10-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1008 AD NUMBER: 70-10-06 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 172I and 172K Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-10-06 CESSNA: Amendment 39-990 as amended by Amendment 39-1008. Applies to Models 172I (Serial Numbers 17256513 through 17257161) and 172K (Serial Numbers 17256493, and 17257162 through 17259043) Airplanes. Compliance: Required as indicated, unless already accomplished. To prevent the loss of engine oil caused by failure of the metal oil pressure instrument line, accomplish the following: Within 50 hours' time in service from June 1, 1970, but by no later than June 30, 1970, replace the metal oil pressure instrument line between the engine and the firewall with a flexible hose assembly in accordance with the instructions contained in Cessna Service Letter No. SE70-10, dated May 5, 1970, or Cessna Service Letter No. SE70-10, Supplement No. 1, dated June 9, 1970, or any other method approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. Amendment 39-990 effective May 19, 1970. This amendment becomes effective upon publication in the FEDERAL REGISTER. FOOTER:
Document Text
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AD Final Rules - DRS_70-10-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-10-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CESSNA Model 172I and 172K Airplanes Subject: Oil Pressure Instrument Line Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Cessna Aircraft Company Model: 172I | 172K Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 70-10-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1008 AD NUMBER: 70-10-06 SUBJECT HEADING: Airworthiness Directives; CESSNA Model 172I and 172K Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-10-06 CESSNA: Amendment 39-990 as amended by Amendment 39-1008. Applies to Models 172I (Serial Numbers 17256513 through 17257161) and 172K (Serial Numbers 17256493, and 17257162 through 17259043) Airplanes. Compliance: Required as indicated, unless already accomplished. To prevent the loss of engine oil caused by failure of the metal oil pressure instrument line, accomplish the following: Within 50 hours' time in service from June 1, 1970, but by no later than June 30, 1970, replace the metal oil pressure instrument line between the engine and the firewall with a flexible hose assembly in accordance with the instructions contained in Cessna Service Letter No. SE70-10, dated May 5, 1970, or Cessna Service Letter No. SE70-10, Supplement No. 1, dated June 9, 1970, or any other method approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. Amendment 39-990 effective May 19, 1970. This amendment becomes effective upon publication in the FEDERAL REGISTER. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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