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2 The AMO may also wish to provide a list of those maintenance functions for which it has the housing, facilities, equipment, and materials “in-house,” but
may need to contract to another facility because of workload or emergency situations. For example, an airframe rated AMO may have the capability to
perform maintenance or alteration on landing gear, but if the in-house facility cannot accomplish the work scope within a specified time, it may want to
contract that work to another facility. It would not be able to contract the work unless the maintenance function of landing gear maintenance was on its
DAAO-approved list.
3 Additionally, the AMO may wish to provide a method for which a maintenance function can be added to its DAAO approved function list on an emergency
basis. This would be accomplished by explaining how the maintenance function would be added and how the DAAO approval would be obtained in a
short period of time. The AMO should coordinate closely with its principal inspector and its local DAAO regarding these emergency procedures.
e. Establish Procedures.
Before contracting out a function, the AMO should establish:
1 Procedures to obtain approval for the maintenance function. 2 Procedures to qualify the contractor.
3 Procedures to survey the contractor if the contractor does not perform approval for return to service.
4 A list of contractors and procedures to properly maintain that list. 5 Technical training on contracted functions for receiving inspection
personnel. 6 Procedures for receiving inspections that provide enough technical
detail to determine acceptability of an article. 7 Procedures for complying with the test andor inspection requirement of
CASR Part 145.217b3 when contracting to a noncertificated person.
f. Contracting to DAAO-Certificated Facilities . A certificated AMO may not
provide only approval for return to service of a complete type-certificated product following contract maintenance, preventive maintenance or
alterations. If the AMO chooses to exercise the privileges of its certificate by issuing an approval for return to service for a maintenance function
contracted to the DAAO-certificated AMO, the AMO must determine that the contracted AMO is properly rated to perform the maintenance. An AMO
may issue an additional approval for return to service under its privileges, such as tagging a previously maintained or altered article as inspected,
provided the AMO:
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40 1 Has the appropriate rating for the article,
2 Is approved to contract out the maintenance function, and 3 Conducts the maintenance, preventive maintenance or alteration,
including inspection in accordance with CASR Part 43.13 and CASR part 145.
g. Contracting Maintenance Functions to Noncertificated Persons.
1 If the AMO contracts to noncertificated persons, the AMO must ensure that: a The noncertificated person follows a quality control program equivalent to
the DAAO-certificated AMO’s system with respect to the work being performed for the certificated AMO;
b The AMO remains directly in charge of the work performed; c The AMO verifies by inspection or test that the work was performed
satisfactorily; and d The article is airworthy with respect to the work performed by the
noncertificated person. 2 The AMO must verify by test or inspection that the work has been performed
satisfactorily and that the article is airworthy before approving it for return to service.
h. Procedures. Procedures in the AMO manual should include the title of the
person responsible for the contract maintenance program. The procedures must also include provisions for maintaining the contracting information in a format
acceptable to the DAAO. The information is not required to be in the manual, but if included, it must identify:
1 The name of each outside contracted source, 2 The maintenance functions contracted to each source, and
3 The type of certificate and ratings, if any, held by each source.
i. Initial Qualification. The procedures in the AMO manual must describe how the
noncertificated person is initially qualified. It also should describe how the AMO ensures that the noncertificated person continues to follow the quality control
program equal to the AMO’s for the work being performed on the AMO’s behalf.
j. Coordinating Communications. Procedures for coordinating communications
between the AMO and the contracted source should be established. If the AMO performs any maintenance for an air carrier, the procedures should explain any
special requirements such as performing the work in accordance with the air
