AD 80-22-05

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AD Number:
80-22-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
TELEDYNE CONTINENTAL MOTORS ModelsTSIO-520-M, TSIO-520-P, TSIO-520-R Engines
Subject:
Crankshaft Front Oil Seal
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/24/1980
Make:
Continental Motors
Model:
TSIO-520-M | TSIO-520-P | TSIO-520-R
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Superseded AD: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Superseded By: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: 80-22-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3948

AD NUMBER:   80-22-05

SUBJECT HEADING:   TELEDYNE CONTINENTAL MOTORS ModelsTSIO-520-M, TSIO-520-P, TSIO-520-R Engines

ACTION:  

SUMMARY:  

DATES:   Effective October 24, 1980.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   80-22-05 TELEDYNE CONTINENTAL MOTORS: Amendment 39-3948. Applies to engine models as follows:
TSIO-520-M, serial numbers 511000 through 520187, 230126R through 230129R, 230131R through 230142R, and 230144R through 230146R, installed in, but not limited to, certain Cessna Models TU206G and T207A airplanes certificated in all categories; TSIO-520-P, serial numbers 513000 through 513620, and 236401R, installed in, but not limited to, certain Cessna Model P210N airplanes certificated in all categories; TSIO-520-R, serial numbers 512000 through 517961, 230226R, 230228R, 230230R through 230233R, 230235R through 230246R, and 230248R, installed in, but not limited to, certain Cessna Models T210M and T210N airplanes certificated in all categories.
Compliance is required within the next 25 hours time in service after effective date of this AD, unless already accomplished.
To prevent the crankshaft front oil seal being dislodged from the engine crankcase, accomplish the following:
(a) Remove engine top cowl panel and left and right nose cowl sections.
(b) Inspect the crankshaft front oil seal which is located on the crankshaft where it passes through the front engine case. If the seal is displaced or there is evidence of oil leakage, replace the oil seal in accordance with the appropriate maintenance manual.
(c) Install two (2) seal half plates, TCM Part No. 641361, on the forward face of the crankcase with four (4) TCM Part No. 628321-.38 bolts. Torque bolts to 21-25 in-lbs.
(d) Reinstall left and right nose cowl sections and engine top cowl panel, ensuring that baffle seals are fitted and turned in the correct direction.
(e) Run the engine until normal operating temperature is reached and inspect crankshaft front oil seal for leaks.
(f) Make an appropriate maintenance record entry.
NOTE: Teledyne Continental Service Bulletin No. M80-20, dated September 12, 1980, pertains to this subject.
An equivalent method of compliance may be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region.
This amendment is effective October 24, 1980.

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