- Effective
- January 17, 1975
- Model
- T5313B
- Data sheet
- TCDSE17EA
- Registered aircraft
- 108 matched by model
- Product
- Engine
- Amendment
- 39-2063
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 | 19 KB | 34dbef9b…cb51e8f | FAA DRS (API key needed) |
On this page
The airworthiness directive
75-01-05 AVCO LYCOMING: Amendment 39-2063. Applies to all Avco Lycoming T5313B turboshaft engines. Compliance required, unless already accomplished, prior to the accumulation of 100 hours time in service after the effective date of this AD. To prevent possible centrifugal compressor impeller assembly vane failures leading to performance deterioration and partial or complete power loss, remove centrifugal compressor impeller assemblies, part numbers 1-100-078-03, 1-100-078-04, and 1-100-078-10 and replace with centrifugal compressor impeller assembly, part number 1-100-078-08. Equivalent methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. NOTE: (Avco Lycoming Service Bulletin Number 0042 pertains to this subject.) This amendment becomes effective January 17, 1975
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 108
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1944 | 1 |
|---|---|
| 1960 | 1 |
| 1961 | 2 |
| 1962 | 12 |
| 1963 | 6 |
| 1964 | 7 |
| 1965 | 7 |
| 1966 | 8 |
| 1967 | 3 |
| 1968 | 9 |
| 1969 | 5 |
| 1970 | 4 |
| 1971 | 5 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 3 |
| 1975 | 1 |
| 1976 | 4 |
| 1977 | 1 |
| 1978 | 1 |
| 1979 | 1 |
| 1980 | 1 |
| 1988 | 1 |
| 1994 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1999 | 1 |
| 2012 | 1 |
17 with no year recorded