- Effective
- July 29, 1975
- Model
- SZD-24-4A Foka-4
- Data sheet
- TCDSG10EU
- Registered aircraft
- 1 matched by model
- Product
- Aircraft · Glider
- Amendment
- 39-2291
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 | 1699c108…6f11dc9 | FAA DRS (API key needed) |
On this page
The airworthiness directive
75-16-17 SZYBOWCOWY ZAKLAD DOSWIADCZALNY: Amendment 39-2291. Applies to SZD-24-4A FOKA 4 gliders, all serial numbers, certificated in all categories.
Compliance is required within the next 10 hours time in service after the effective date of this AD, unless already accomplished, and thereafter at intervals of 50 hours time in service from the last inspection.
To prevent structural failure of wing, fuselage, and tailplane, accomplish the following:
1. Inspect the wing, fuselage, tailplane and associated components or parts in accordance with "Detailed Range of the Glider Inspection", paragraphs 2.1 thru 2.4.5 of Annex Nr. 1 of SZD-24-4A Service Manual Edition II, dated 1967, or an FAA approved equivalent.
2. Repair or replace parts, components, or structure found to be unserviceable in accordance with "Removing of the Faults", paragraphs 3.1 thru 3.6 of Annex Nr. 1 of SZD-24-4A Service Manual Edition II, dated 1967, or an FAA-approved equivalent.
This amendment becomes effective July 29, 1975.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 1
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.