AD 63-15-01
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Continental Motors | E165-2 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E165-3 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E165-4 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E185-1 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E185-10 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E185-11 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E185-2 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E185-3 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E185-5 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E185-8 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E185-9 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E225-2 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E225-4 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E225-8 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | E225-9 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-11 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-11-CI | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-11B | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-11B-CI | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-13 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-13A | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-15 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-2 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-4 | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-A | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-B | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-B-CI | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-E | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-G | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-G-CI | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-H | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-J | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-K | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-K-CI | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-L | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-L-CI | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-M | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-M-CI | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-N | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-P | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-R | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-S | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-T | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
| engine | Continental Motors | O-470-U | CONTINENTAL Models E165, E185, E225, and O-470 Series Engines |
Unsafe Condition
Exhaust valves with part numbers 40651, 537844, 538997, or 539449 may fail due to improper material composition or manufacturing defects, leading to engine failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove all exhaust valves with specified part numbers and replace them with part number 626540. Compliance must be completed at the next engine top overhaul or overhaul, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
next engine top overhaul, or overhaul, which occurs first
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Continental Motors E165, E185, E225, and O-470 Series Engines, as listed in the AD, installed in aircraft such as Beech 35 Series, Cessna 180, 182, 310, and Navion.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Exhaust Valves
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_63-15-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 63-15-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: CONTINENTAL Models E165, E185, E225, and O-470 Series Engines Subject: Exhaust Valves Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/31/1969 Make: Continental Motors Model: E165-2 | E165-3 | E165-4 | E185-1 | E185-10 | E185-11 | E185-2 | E185-3 | E185-5 | E185-8 | E185-9 |...Show more 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: 63-15-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-903 AD NUMBER: 63-15-01 SUBJECT HEADING: CONTINENTAL Models E165, E185, E225, and O-470 Series Engines ACTION: SUMMARY: DATES: Effective December 31, 1969. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 63-15-01 CONTINENTAL: Amdt. 592, as amended by Amendment 39-903. Applies to all E165, E185, E225, and O-470 Series Engines. (These engines may be installed in such aircraft as Beech 35 Series, Cessna 180, 182, 310 and Navion.) Compliance required at next engine top overhaul, or overhaul, which occurs first. Unless already accomplished in accordance with Continental Motors Corporation Service Bulletin No. M60-1 or AD 61-03-02, remove all exhaust valves CMC P/N 40651, 537844, 538997, or 539449, with or without revision letter suffix, and replace with exhaust valve P/N 626540. Part Number 626540 may be identified by the following: (a) The basic part number with or without revision letter suffix on the combustion surface of the head, or (b) The letter "H" or a triangle stamped or etched 0.06 high on the valve stem between the keeper groove and the end of valve on valves manufactured prior to July 1967. This supersedes AD 61-03-02. Effective July 25, 1963. Revised December 31, 1969. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_63-15-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 63-15-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: CONTINENTAL Models E165, E185, E225, and O-470 Series Engines Subject: Exhaust Valves Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/31/1969 Make: Continental Motors Model: E165-2 | E165-3 | E165-4 | E185-1 | E185-10 | E185-11 | E185-2 | E185-3 | E185-5 | E185-8 | E185-9 |...Show more 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: 63-15-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-903 AD NUMBER: 63-15-01 SUBJECT HEADING: CONTINENTAL Models E165, E185, E225, and O-470 Series Engines ACTION: SUMMARY: DATES: Effective December 31, 1969. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 63-15-01 CONTINENTAL: Amdt. 592, as amended by Amendment 39-903. Applies to all E165, E185, E225, and O-470 Series Engines. (These engines may be installed in such aircraft as Beech 35 Series, Cessna 180, 182, 310 and Navion.) Compliance required at next engine top overhaul, or overhaul, which occurs first. Unless already accomplished in accordance with Continental Motors Corporation Service Bulletin No. M60-1 or AD 61-03-02, remove all exhaust valves CMC P/N 40651, 537844, 538997, or 539449, with or without revision letter suffix, and replace with exhaust valve P/N 626540. Part Number 626540 may be identified by the following: (a) The basic part number with or without revision letter suffix on the combustion surface of the head, or (b) The letter "H" or a triangle stamped or etched 0.06 high on the valve stem between the keeper groove and the end of valve on valves manufactured prior to July 1967. This supersedes AD 61-03-02. Effective July 25, 1963. Revised December 31, 1969. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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