A0051/26 NOTAMN Q) KICZ/QWMLW/IV/BO/W/000/999/0053N08625W A) KICZ B) 2609101436 C) 2703130500 E) SECURITY ...UNITED STATES OF AMERICA ADVISORY FOR POTENTIALLY HAZARDOUS SITUATION IN THE OVERWATER AREAS OF THE GUAYAQUIL FLIGHT INFORMATION REGION (SEFG)  U.S. OPERATORS ARE ADVISED TO EXERCISE CAUTION WHEN OPERATING IN THE OVERWATER AREAS OF THE GUAYAQUIL FLIGHT INFORMATION REGION (SEFG) DUE TO MILITARY ACTIVITIES AND GNSS INTERFERENCE. POTENTIAL RISKS EXIST FOR AIRCRAFT AT ALL ALTITUDES, INCLUDING DURING OVERFLIGHT AND THE ARRIVAL AND DEPARTURE PHASES OF FLIGHT.  THIS NOTAM APPLIES TO ALL U.S. AIR CARRIERS AND COMMERCIAL OPERATORS; ALL PERSONS EXERCISING THE PRIVILEGES OF AN AIRMAN CERTIFICATE ISSUED BY THE FAA, EXCEPT SUCH PERSONS OPERATING U.S.-REGISTERED AIRCRAFT FOR A FOREIGN AIR CARRIER; AND ALL OPERATORS OF CIVIL AIRCRAFT REGISTERED IN THE UNITED STATES, EXCEPT WHEN THE OPERATOR OF SUCH AIRCRAFT IS A FOREIGN AIR CARRIER.  REFER TO THE BACKGROUND INFORMATION NOTICE FOR ADDITIONAL INFORMATION FOR U.S. CIVIL AVIATION OPERATIONS IN THE AFFECTED AIRSPACE AT HTTPS:// WWW.FAA.GOV/AIR_TRAFFIC/PUBLICATIONS/US_RESTRICTIONS.  REPORT ANY SAFETY/SECURITY INCIDENTS OBSERVED/EXPERIENCED WHILE OPERATING IN THE AFFECTED AIRSPACE TO THE FAA'S WASHINGTON OPERATIONS CENTER AT 1-202-267-3333. F) SFC G) UNL