AD 79-03-03

final rule

Airworthiness Directives; CESSNA Models TU206G, T207A and T210M Airplanes

AD Number
79-03-03
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft turbine engine assembly
Problem area Engine

Applicability

TypeManufacturerModelDetails
aircraft Cessna Aircraft Company T207A Airworthiness Directives; CESSNA Models TU206G, T207A and T210M Airplanes
aircraft Cessna Aircraft Company T210M Airworthiness Directives; CESSNA Models TU206G, T207A and T210M Airplanes
aircraft Cessna Aircraft Company TU206G Airworthiness Directives; CESSNA Models TU206G, T207A and T210M Airplanes

Unsafe Condition

Failure of the engine oil pressure and scavenge pump drive shaft and resulting oil pressure loss caused by turbocharger oil scavenge pump ingestion of failed turbocharger thrust bearing anti-rotation pins.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Check the turbocharger nameplate for serial numbers HE0101 through HE0160. If within the range, replace the turbocharger or its center housing per Cessna or AiResearch service instructions. Otherwise, record compliance in maintenance records.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within the next 10 hours' time-in-service after the effective date of this AD

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Cessna Models TU206G (S/Ns U20604459, U20604465, U20604473, U20604474, U20604480, U20604482 thru U20604484, U20604486, U20604487, U20604491, U20604493, U21062715, U21062717 thru U21062722, U21062724, U21062726, U21062728 thru U21062730, U21062732, U21062734 thru U21062736, U21062738 thru U21062741, U21062746, U21062747 thru U21062752, U21062766, U21062767, U21062818), T207A (S/Ns 20700453, 20700455, 20700456), and T210M (S/Ns 21062673, 21062699 thru 21062702, 21062704 thru 21062708, 21062711, 21062712, 21062715, 21062717 thru U21062722, 21062724, 21062726, 21062728 thru 21062730, 21062732, 21062734 thru 21062736, 21062738 thru 21062741, 21062746, 21062747 thru 21062752, 21062766, 21062767, 21062818) certificated in all categories.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Engine Oil Pressure

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_79-03-03.html
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AD Number:
79-03-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; CESSNA Models TU206G, T207A and T210M Airplanes
Subject:
Engine Oil Pressure
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/12/1979
Make:
Cessna Aircraft Company
Model:
T207A | T210M | TU206G
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: 79-03-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3406

AD NUMBER:   79-03-03

SUBJECT HEADING:   Airworthiness Directives; CESSNA Models TU206G, T207A and T210M Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective February 12, 1979.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
79-03-03 CESSNA: Amendment 39-3406. Applies to Model TU206G (S/Ns U20604459, U20604465, U20604473, U20604474, U20604480, U20604482 thru U20604484, U20604486, U20604487, U20604491, U20604493, U20604507, U20604567), Model T207A (S/Ns 20700453, 20700455, 20700456), and Model T210M (S/Ns 21062673, 21062699 thru 21062702, 21062704 thru 21062708, 21062711, 21062712, 21062715, 21062717 thru 21062722, 21062724, 21062726, 21062728 thru 21062730, 21062732, 21062734 thru 21062736, 21062738 thru 21062741, 21062746, 21062747 thru 21062752, 21062766, 21062767, 21062818) airplanes certificated in all categories.

COMPLIANCE: Required as indicated unless already accomplished.

To preclude failure of the engine oil pressure and scavenge pump drive shaft and resulting oil pressure loss caused by turbocharger oil scavenge pump ingestion of failed turbocharger thrust bearing anti-rotation pins, within the next 10 hours' time-in-service after the effective date of this AD, accomplish the following:

A) Check the Cessna P/N C295001-0101 (AiResearch P/N 406610-5) turbocharger nameplate to determine if the serial number is HE0101 through HE0160.

B) If the serial number on the turbocharger nameplate is not one of those specified in Paragraph A), make an entry in the aircraft maintenance records indicating compliance with this AD and no further action is required.

C) If the serial number on the turbocharger nameplate is one of those specified in Paragraph A), replace the turbocharger or replace the turbocharger center housing in accordance with applicable Cessna or AiResearch service instructions.

D) Airplanes may be flown in accordance with FAR 21.197 to a location where replacement required by Paragraph C) may be accomplished.

E) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

This amendment becomes effective on February 12, 1979 to all persons except those to whom it has already been made effective by an airmail letter from the FAA dated December 21, 1978.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_79-03-03.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
79-03-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; CESSNA Models TU206G, T207A and T210M Airplanes
Subject:
Engine Oil Pressure
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/12/1979
Make:
Cessna Aircraft Company
Model:
T207A | T210M | TU206G
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: 79-03-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3406

AD NUMBER:   79-03-03

SUBJECT HEADING:   Airworthiness Directives; CESSNA Models TU206G, T207A and T210M Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective February 12, 1979.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
79-03-03 CESSNA: Amendment 39-3406. Applies to Model TU206G (S/Ns U20604459, U20604465, U20604473, U20604474, U20604480, U20604482 thru U20604484, U20604486, U20604487, U20604491, U20604493, U20604507, U20604567), Model T207A (S/Ns 20700453, 20700455, 20700456), and Model T210M (S/Ns 21062673, 21062699 thru 21062702, 21062704 thru 21062708, 21062711, 21062712, 21062715, 21062717 thru 21062722, 21062724, 21062726, 21062728 thru 21062730, 21062732, 21062734 thru 21062736, 21062738 thru 21062741, 21062746, 21062747 thru 21062752, 21062766, 21062767, 21062818) airplanes certificated in all categories.

COMPLIANCE: Required as indicated unless already accomplished.

To preclude failure of the engine oil pressure and scavenge pump drive shaft and resulting oil pressure loss caused by turbocharger oil scavenge pump ingestion of failed turbocharger thrust bearing anti-rotation pins, within the next 10 hours' time-in-service after the effective date of this AD, accomplish the following:

A) Check the Cessna P/N C295001-0101 (AiResearch P/N 406610-5) turbocharger nameplate to determine if the serial number is HE0101 through HE0160.

B) If the serial number on the turbocharger nameplate is not one of those specified in Paragraph A), make an entry in the aircraft maintenance records indicating compliance with this AD and no further action is required.

C) If the serial number on the turbocharger nameplate is one of those specified in Paragraph A), replace the turbocharger or replace the turbocharger center housing in accordance with applicable Cessna or AiResearch service instructions.

D) Airplanes may be flown in accordance with FAR 21.197 to a location where replacement required by Paragraph C) may be accomplished.

E) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

This amendment becomes effective on February 12, 1979 to all persons except those to whom it has already been made effective by an airmail letter from the FAA dated December 21, 1978.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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