AMC
25.809(c) and (e) Testing of the opening of passenger‑operated exits
For emergency exits intended to be operated by passengers, such as non-floor-level overwing exits (e.g. Type III and IV exits), testing with naïve subjects should be performed in order to demonstrate that opening the emergency exits is simple and obvious and does not require exceptional effort.
The demonstration may be conducted either on the aeroplane or on a representative mock-up, and it should include all the relevant safety markings and exit opening instructions.
The opening of the emergency exit should be demonstrated by a sufficient number of naïve test subjects selected to be representative of the passenger population with respect to gender, age, size and handedness. Meeting the criteria of paragraph (h) of Appendix J to CS-25 is an acceptable means to achieve a representative age and gender distribution of the participants in the test.
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