- Effective
- December 31, 1969
- Models
- E165-2, E165-3, E165-4, E185-1, E185-10, E185-11 and 38 more
- Registered aircraft
- 15,141 matched by model
- Product
- Engine
- Amendment
- 39-903
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 20 KB | bfb53e10…c7cae91 | FAA DRS (API key needed) |
On this page
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 TCDS · 5
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 15,141
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1932 | 1 |
|---|---|
| 1943 | 2 |
| 1945 | 1 |
| 1946 | 102 |
| 1947 | 305 |
| 1948 | 269 |
| 1949 | 120 |
| 1950 | 136 |
| 1951 | 172 |
| 1952 | 122 |
| 1953 | 389 |
| 1954 | 344 |
| 1955 | 596 |
| 1956 | 747 |
| 1957 | 638 |
| 1958 | 485 |
| 1959 | 425 |
| 1960 | 322 |
| 1961 | 260 |
| 1962 | 363 |
| 1963 | 308 |
| 1964 | 391 |
| 1965 | 476 |
| 1966 | 515 |
| 1967 | 406 |
| 1968 | 400 |
| 1969 | 387 |
| 1970 | 140 |
| 1971 | 186 |
| 1972 | 326 |
| 1973 | 475 |
| 1974 | 300 |
| 1975 | 545 |
| 1976 | 520 |
| 1977 | 500 |
| 1978 | 343 |
| 1979 | 450 |
| 1980 | 169 |
| 1981 | 176 |
| 1982 | 69 |
| 1983 | 38 |
| 1984 | 42 |
| 1985 | 63 |
| 1986 | 26 |
| 1987 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1999 | 4 |
| 2000 | 1 |
| 2001 | 5 |
| 2002 | 2 |
| 2003 | 1 |
| 2004 | 1 |
| 2009 | 2 |
| 2010 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2023 | 1 |
| 2025 | 1 |
2,064 with no year recorded