ZLIN AIRCRAFT A.S. Z 50 M: certification basis

Basis entries as written on the TCDS

1. REG

   14 CFR Part 23, incl. Amdt. 23-1 through 23-14

   Not linked to provisions yet: the line is not interpreted, or its document is not in the dataset.

2. ◆ SPECIAL

   None None

3. ELOS

   § 23.177(a)(3) – Requirement upon the control force characteristic in relation to the aileron angle is not completely met. In steady, right slips at 1.2

4. ELOS

   VS1, the aileron control force and corresponding aileron movement in relation to the angle of skid has not a stable characteristic. It is admitted under the proviso that the special aerobatic airplane is concerned; the rate of unstability is outweighed by a good controllability; neither dangerous tendency nor exceptional requirements upon piloting skill occur.

5. ELOS

   § 23.207(c) – The difference between the stalling speed and the stall warning speed is lesser than the value required in the Regulation. It is admitted under the proviso that the special aerobatic airplane is concerned where the later warning enables the pilot to use a wider range of speed polar.

6. ELOS

   § 23.613(c) – Materials and design values used for aircraft design and construction comply with the Czechoslovak State Standard and specifications valid for the Czechoslovak aviation industry. It is admitted with regard to the fact that the requirement sense is met.

7. ELOS

   § 23.967(d) – The fuel tank is located in the pilot´s compartment and is not isolated by an impermeable partition. It is admitted under the proviso that the instructions for tank tightness test are included in the Flight Manual.

8. ELOS

   § 23.971 – In the normal ground attitude, fuel tank sump cannot be completely discharged. It is admitted because the fuel system construction arrangement avoids water entry into the power plant fuel system.

9. ELOS

   § 23.993(d), (e) – Of the fire resistance of hoses is not complied with. It is admitted with regard to operating experiences.

10. ELOS

    § 23.1093(a)(4) – Requirement upon temperature of air inducted by the alternate air intake system is not completely met. Induction air temperature is lesser than temperature of cooling air at engine outlet. It is admitted under the proviso that flying in icing conditions is prohibited.

11. ELOS

    § 23.1351(d) – For the electrical power supply to be

12. ELOS

    checked, the airplane is equipped with a check light signalling the alternator is out of operation. It is admitted under the proviso that the airplane is equipped with a storage battery securing the electrical power supply for necessary time.

13. ELOS

    § 23.1381 – 1401 The airplane is not equipped with light system for night operation. Night flight and IFR flight are not permitted.

14. OTHER

    ICAO Annex 16/I, Chapter 10

15. Exemptions: none recorded.