- Effective
- August 28, 1964
- Models
- Lake LA-4, Lake LA-4A, Lake LA-4P
- Data sheet
- TCDS1A13
- Registered aircraft
- 15 matched by model
- Product
- Aircraft · Small airplane
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 | b1a94f33…0452c0d | FAA DRS (API key needed) |
On this page
The airworthiness directive
64-17-05 CONSOLIDATED AERONAUTICS: Amdt. 777 Part 507 Federal Register July 29, 1964. Applies to Models Lake LA-4, LA-4A and LA-4P Aircraft.
Compliance required prior to September 15, 1964.
To preclude the possibility of complete breather blockage and subsequent loss of engine oil due to icing, rework the uppermost (-37) elbow located on the oil breather separator container in accordance with Consolidated Aeronautics, Inc. Engineering Order No. 2-657, dated March 2, 1964. This rework consists of locating a 3/8 inch x 3/32 inch whistle slot 3/4 inch from top of breather container.
(Consolidated Aeronautics, Inc. Service Letter No. 8, Revision No. 1 dated March 7, 1964, covers this same subject.)
This directive effective August 28, 1964.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 15
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1964 | 1 |
|---|---|
| 1975 | 7 |
| 1977 | 1 |
6 with no year recorded