| AD Number | 75-17-12 | Status | Active |
| Effective Date | August 18, 1975 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-2314 |
| Product Type | ["Aircraft"] | Product Subtype | ["Glider"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Slingsby Aviation Ltd. |
| Model(s) | T.59.D Kestrel |
75-17-12 SLINGSBY SAILPLANES: Amendment 39-2314. Applies to Slingsby T59D Kestrel gliders certificated in all categories.
Compliance is required as indicated, unless already accomplished.
To prevent dive brake retraction failure, accomplish the following:
(a) Within the next 10 hours' time in service after the effective date of this AD, install a placard on the instrument panel in full view of the pilot reading:
"AIR BRAKE EXTENSION LIMITATION
FINAL APPROACH 50%
FLAREOUT ON LANDING 100%
CRUISE NONE (0%)"
(b) Within the next 50 hours' time in service after the effective date of this AD, replace the dive brake control mechanism with the linear type dive brake control mechanism, P/N 59A-45-717, in accordance with Slingsby Sailplanes Technical Instruction No. 75 dated May 21, 1975, or an FAA approved equivalent.
(c) The placard required by paragraph (a) of this AD may be removed after the work specified in paragraph (b) of this AD has been accomplished.
This amendment becomes effective August 18, 1975.