B777 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 176; Flight Crew Total 22000; Flight Crew Type 8499
Situational Awareness
Aircraft Equipment Problem Less Severe
Flight Crew Overcame Equipment Problem
Procedure; Company Policy; Aircraft
I was surprised to read the TLV GPS Ops Alert (rescinding the 'GPS Updating OFF Procedures' Ops Alert) saying; 'TLV authorities have reported that GPS signals are no longer compromised' prior to departing for TLV. On the numerous trips I have flown there since last year; the GPS has been jammed on EVERY trip. As we approached the TLV FIR; we got the ADS-B EICAS; STATUS; and ADS-B checklist prompt. At the same time; at the bottom of the ND; we went from GPS to inertial--exactly as it has happened on all the other TLV arrivals I've flown since last year. After completing the checklist; (switching transponder from L to R); we were no longer jammed and the EICAS message went away and the airplane switched back to GPS updating. A few minutes later; the exact same scenario happened again. Finally; as we approached the shoreline; it happened for a third time.
B-777 Captain reported experiencing GPS jamming multiple times during approach to Tel Aviv airport.