Originally Posted by
utedrummer
(b) Notwithstanding the provisions of paragraphs (a)(1) and (2) of this section, an applicant for an airline transport pilot certificate or an additional rating to an airline transport certificate may take the practical test for that certificate or rating with an expired knowledge test report, provided that the applicant:
(1) Is employed as a flight crewmember by a certificate holder under part 121, 125, or 135 of this chapter at the time of the practical test and has satisfactorily accomplished that operator's approved--
(i) Pilot in command aircraft qualification training program that is appropriate to the certificate and rating sought; and
(ii) Qualification training requirements appropriate to the certificate and rating sought;
This is the legal requirement. There are no caveats or exclusions, you can use an expired written, regardless as to how long ago it was taken or what your employment history was along the way. You just need to be employed in 121/125/135 at the time of the practical test and posses a passed written.
Company policies may differ, ask your training dept.