# AD 63-15-01: Exhaust Valves - Type: Airworthiness directive - Status: Current - Products: Continental Motors E165-2, E165-3, E165-4, E185-1, E185-10, E185-11, E185-2, E185-3, E185-5, E185-8, E185-9, E225-2 and 32 more - Effective: December 31, 1969 - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-903 - Registered aircraft: 15,141 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CF75C01A2069D71286256CE50070CC79.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/63-15-01 ## The airworthiness directive 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. ## Affected data sheets (5) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS E-273](https://openairdocs.org/tcds/E-273): Continental Aerospace Technologies, Inc.; names 19 of 21 models: O-470-G-CI, O-470-T, O-470-B-CI, O-470-N, O-470-R, O-470-H, O-470-A, O-470-E… - [TCDS E-246](https://openairdocs.org/tcds/E-246): Continental Aerospace Technologies, Inc.; names 11 of 11 models: E185-3, E185-1, E185-2, E165-2, E165-3, E185-11, E185-9, E185-10… - [TCDS E-269](https://openairdocs.org/tcds/E-269): Continental Aerospace Technologies, Inc.; names 8 of 8 models: O-470-11, O-470-15, O-470-11B-CI, O-470-13, O-470-11-CI, O-470-11B, O-470-4, O-470-13A - [TCDS E-267](https://openairdocs.org/tcds/E-267): Continental Aerospace Technologies, Inc.; names 4 of 4 models: E225-8, E225-9, E225-4, E225-2 - [TCDS E-281](https://openairdocs.org/tcds/E-281): Continental Aerospace Technologies, Inc.; names 1 of 2 models: O-470-2 ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 15,141 (0 by airframe model, 15,141 by engine model) - Makers: Cessna 12,354, Beech 1,973, Ryan 263, North American 226, Navion 100, Bellanca 49, Luscombe 23, Stinson 15, Cessna Ector 14, Downer 14 Models with the most aircraft: - [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series): 12,779 aircraft (engine model) - [Continental E185 series](https://openairdocs.org/engine/continental-e185-series): 1,108 aircraft (engine model) - [Continental E225 series](https://openairdocs.org/engine/continental-e225-series): 979 aircraft (engine model) - [Continental O-470R](https://openairdocs.org/engine/continental-o-470r): 107 aircraft (engine model) - [Continental O-470-U](https://openairdocs.org/engine/continental-o-470-u): 56 aircraft (engine model) - [Continental O-470-S](https://openairdocs.org/engine/continental-o-470-s): 22 aircraft (engine model) - [Continental O-470-L](https://openairdocs.org/engine/continental-o-470-l): 19 aircraft (engine model) - [Continental O-470-K](https://openairdocs.org/engine/continental-o-470-k): 13 aircraft (engine model) - [Continental E165 series](https://openairdocs.org/engine/continental-e165-series): 8 aircraft (engine model) - [Continental E225-4](https://openairdocs.org/engine/continental-e225-4): 7 aircraft (engine model) - [Continental E225-8](https://openairdocs.org/engine/continental-e225-8): 7 aircraft (engine model) - [Continental O-470-J](https://openairdocs.org/engine/continental-o-470-j): 6 aircraft (engine model) - [Continental O-470-A](https://openairdocs.org/engine/continental-o-470-a): 5 aircraft (engine model) - [Continental 0-470-11](https://openairdocs.org/engine/continental-0-470-11): 4 aircraft (engine model) - [Continental O-470-M](https://openairdocs.org/engine/continental-o-470-m): 4 aircraft (engine model) - [Continental E185-1](https://openairdocs.org/engine/continental-e185-1): 3 aircraft (engine model) - [Continental O-470-G](https://openairdocs.org/engine/continental-o-470-g): 3 aircraft (engine model) - [Continental O-470-13A](https://openairdocs.org/engine/continental-o-470-13a): 3 aircraft (engine model) - [Continental 0-470-4](https://openairdocs.org/engine/continental-0-470-4): 2 aircraft (engine model) - [Continental 0-470-15](https://openairdocs.org/engine/continental-0-470-15): 2 aircraft (engine model) All 24 models: https://openairdocs.org/ad/63-15-01/models.md Every aircraft: https://openairdocs.org/ad/63-15-01/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.