jdwatson said:
If a pilot that holds a Commercial certificate as ASEL, then added AMEL would they have to also fly the X-C (solo & dual) again in the multi-engine plane ?
In this example the pilot would need to comply with 61.63(c):
§ 61.63 Additional aircraft ratings (other than on an airline transport pilot certificate).
(a)
General. To be eligible for an additional aircraft rating to a pilot certificate, for other than an airline transport pilot certificate, an applicant must meet the appropriate requirements of this section for the additional aircraft rating sought.
...
(c)
Additional class rating. Any person who applies for an additional class rating to be added on a pilot certificate:
(1) Must have an endorsement in his or her logbook or training record from an authorized instructor and that endorsement must attest that the applicant has been found competent in the aeronautical knowledge areas appropriate to the pilot certificate for the aircraft class rating sought;
(2) Must have an endorsement in his or her logbook or training record from an authorized instructor, and that endorsement must attest that the applicant has been found proficient in the areas of operation appropriate to the pilot certificate for the aircraft class rating sought;
(3) Must pass the required practical test that is appropriate to the pilot certificate for the aircraft class rating sought;
(4) Need not meet the specified training time requirements prescribed by this part that apply to the pilot certificate for the aircraft class rating sought unless the person holds a a lighter-than-air category rating with a balloon class rating and is seeking an airship class rating and
(5) Need not take an additional knowledge test, provided the applicant holds an airplane, rotorcraft, powered-lift, or airship rating at that pilot certificate level.
I guess the question this time is, does ASEL or AMEL X-C time count for each other ?
For the initial commercial certificate? No. Each section of the FAR requires that the x-country dual be in the category/class of aircraft for which the initial commercial certificate is sought. For example, for a COM/ASEL certificate, the regulations pertaining to x-country dual include the phrase "in a single-engine airplane".