I think the wording is "there is a potential", not "can". So what else is require to achieve the potential outcome??
legalese hoping to avoid responsibility- IMHO wording really should be " WILL repeat nose down trim for 10 seconds, followed by a 5 second pause, then repeat . . "
as in page 51 of the report
Boeing FlightFlight Crew Operations Manual Bulletin Crew Operations Manual Bulletin number number TBC TBC-19-19
THE FOLLOWING PROCEDURE AND/OR INFORMATION IS EFFECTIVE UPON RECEIPT
Background Information
The Indonesian National Transportation Safety Committee has indicated that
Lion Air flight 610 experienced erroneous AOA data. Boeing would like to call
attention to an AOA failure condition that can occur during manual flight only.
This bulletin directs flight crews to existing procedures to address this condition.
I
n the event of erroneous AOA data, the pitch trim system can trim the stabilizer
nose down in increments lasting up to 10 seconds. The nose down stabilizer trim
movement can be stopped and reversed with the use of the electric stabilizer trim
switches but may restart 5 seconds after the electric stabilizer trim switches are
released. Repetitive cycles of uncommanded nose down stabilizer continue to
occur unless the stabilizer trim system is deactivated through use of both STAB
TRIM CUTOUT switches in accordance with the existing procedures in the
Runaway Stabilizer NNC. It is possible for the stabilizer to reach the nose down
limit unless the system inputs are counteracted completely by pilot trim inputs
and both STAB TRIM CUTOUT switches are moved to CUTOUT.