(i)  
Civil aircraft arrival and departure marshalling, parking, pushing out, towing, wheel chocking, and fitting and removal of the protection devices;

(ii)  
Connect ground power and pneumatic supplies; water servicing (fill and drain); fuelling and de-fuelling; air and oxygen charging;

(iii) Necessary cleaning; de-icing and removal of snow and frost;
(iv) Other necessary servicing work.

(6)  
'Scheduled maintenance': Inspections and repairs of civil aircraft or aircraft component, which has been in service to a defined time limit, according to the airworthiness data. It applies to airframe and engine/APU, but doesn’t include “overhaul” defined herein for the purpose of this regulation.

(7)  
Other maintenance functions acceptable to the CAAC.

The CAAC Headquarter Office or the CAAC RA may impose necessary limitations on the above maintenance functions appropriately to the specific circumstance.

§145.19 Classification of Approved Maintenance Rating
Maintenance ratings, in the context of this regulation, are classified as follows:
(1)  Airframe; 
(2)  Power plant; 
(3)  Propeller; 
(4)  Component other than complete engine/APU or propeller.; 
(5)  Specialized services; 
(6)  Other maintenance ratings acceptable to the CAAC. 

The maintenance of airframe, engine/APU and propeller may include maintenance on its respective components which are fitted or removed according to the relevant applicable continuous airworthiness data. For such components which are removed and not bound for re-installation on the airframe, engine/APU and propeller that is under maintenance, the maintenance organization shall submit the application to the CAAC Headquarter Office or the CAAC RA to apply for the maintenance rating of component other than complete engine/APU or propeller.
The CAAC Headquarter Office or the CAAC RA may impose necessary limitations on the maintenance rating(s) as appropriate under the specific circumstances, including those limitations in terms of manufacturer, type, designation, etc listed in Attachment 6 – “Maintenance Function and Maintenance Rating(s) Classification Table”, or any other limitations if the CAAC feels necessary. For the maintenance rating of component other than complete engine/APU or propeller, the company maintenance capability list (Form F145-2) prescribed in the attachment 2 of this regulation shall be provided.
Chapter 4 Requirements for Certification of Maintenance

Organization
§145.20 Facility Requirements
The maintenance organization shall be provided with the appropriate working environment and maintenance facilities, office, training and storage facilities that comply with the following requirements:
(1)  
The maintenance facilities shall fulfill the needs of performing the maintenance work, which is within the approved scope of work as specified in the CAAC MOC, as well as protecting the maintenance work from being affected by all weather elements. The facilities so required shall also meet the following requirements:

i.  With the exception of line maintenance, the hangar of the maintenance organization with the approval of airframe rating shall be large enough to accommodate the approved maintenance rating(s)/item(s). Where the aircraft hangar is rented, the maintenance organization shall provide valid proof of tenancy. For other approved maintenance rating(s)/item(s), workshops with enough room appropriate for the maintenance work shall be available. The aircraft hangar and workshop shall be equipped with hoisting and access equipment appropriate for the intended maintenance work.
ii.  The maintenance organization shall ensure that the aircraft hangar and workshop can effectively protect the maintenance work from being affected by local weather elements, such as rain, snow, ice, hail, wind and dust etc., foreseen throughout the year. Although an aircraft hangar is not necessary for some maintenance work of the approved airframe rating(s), the maintenance organization shall also ensure that such maintenance work can be protected from being affected by all weather elements.
　
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本文鏈接地址：CCAR Part 145- Civil Aircraft Maintenance Organization Certi(8)