(d)  
The operator shall establish procedures to select the most appropriately qualified cabin crew member to act as senior cabin crew member if the nominated senior cabin crew member becomes unable to operate. Changes to these procedures shall be notified to the competent authority.

Subpart TC — Technical crew in HEMS, HHO or NVIS operations 

ORO.TC.100 Scope
This Subpart establishes the requirements to be met by the operator when operating an aircraft with technical crew members in commercial air transport helicopter emergency medical service (HEMS), night vision imaging system (NVIS) operations or helicopter hoist operations (HHO).

ORO.TC.105 Conditions for assignment to duties
(a)  
Technical crew members in commercial air transport HEMS, HHO or NVIS operations shall only be assigned duties if they:

(1)  
are at least 18 years of age;

(2)  
are physically and mentally fit to safely discharge assigned duties and responsibilities;

(3)  
have completed all applicable training required by this Subpart to perform the assigned duties; and

(4)  
have been checked as proficient to perform all assigned duties in accordance with the procedures specified in the operations manual.

(b)  
Before assigning to duties technical crew members who are self-employed and/or working on a freelance or part-time basis, the operator shall verify that all applicable requirements of this Subpart are complied with, taking into account all services rendered by the technical crew member to other operator(s) to determine in particular:

(1)  
the total number of aircraft types and variants operated; and

(2)  
the applicable flight and duty time limitations and rest requirements.

ORO.TC.110 Training and checking
(a)  
The operator shall establish a training programme in accordance with the applicable requirements of this Subpart to cover the duties and responsibilities to be performed by technical crew members.

(b)  
Following the completion of initial, operator conversion, differences and recurrent training, each technical crew member shall undergo a check to demonstrate their proficiency in carrying out normal and emergency procedures.

(c)  
Training and checking shall be conducted for each training course by personnel suitably qualified and experienced in the subject to be covered. The operator shall inform the competent authority about the personnel conducting the checks.

ORO.TC.115 Initial training
Before undertaking the operator conversion training, each technical crew member shall complete initial training, including:
(a)  
general theoretical knowledge on aviation and aviation regulations covering all elements relevant to the duties and responsibilities required of technical crew;
　
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本文鏈接地址：Annexes to the draft Commission Regulation on ‘Air Operations - OPS’(66)