| AD Number | 70-21-03 | Status | Active |
| Effective Date | November 05, 1970 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-1088 |
| Product Type | ["Aircraft"] | Product Subtype | ["Glider"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Entwicklungsgemeinschaft Sport- und Segelflug |
| Model(s) | Phoebus A1 Phoebus B1 Phoebus C |
70-21-03 ENTWICKLUNGSGEMEINSCHAFT: Amendment 39-1088. Applies to Model "PHOEBUS" A1, B1, and C Sailplanes up to and including S.N 934 which have a brake chute installed.
To prevent the rudder from becoming blocked by the back-slipping chute coupling, within the next 100 hours' time in service after the effective date of this AD, unless already accomplished, replace the chute coupling with a modified coupling in accordance with Messerschmitt - Bolkow - Blohm Service Bulletin No. Phoebus-1/70 dated April 1970, or later LBA-approved issue or an FAA-approved equivalent.
This amendment becomes effective November 5, 1970.