Distress signal received on 406 mhz from helicopter in 05-52.2N 126-37.2W at 280703Z jul

Original warning text

EASTERN NORTH PACIFIC.
DNC 13.
1. DISTRESS SIGNAL RECEIVED ON 406 MHZ FROM HELICOPTER
   IN 05-52.2N 126-37.2W AT 280703Z JUL.
   VESSELS IN VICINITY REQUESTED TO
   KEEP A SHARP LOOKOUT, ASSIST IF POSSIBLE.
   REPORTS TO JRCC HONOLULU, TELEX: 392401,
   PHONE: 808 535 3333, FAX: 808 535 3338,
   E-MAIL: [email protected].
2. CANCEL HYDROPAC 2260/16.