Bad propeller vibrations after leaving the Sound.
Returned to Sound and escorted to anchorage at Knowles Head.
Divers checked prop and found nothing.
When engine restarted, vibrations were gone.
Probably fouled fishing net.
PWS, Regional Citizens Council
Exxon North Slope suffers propulsion problem,
upon entering the Sound is escorted to Knowles Head anchorage.
Same ship as S R North Slope.
Guessing Anchorage Daily News is more accurate.