Philippines Warnings – Sources
FSB Risk Level: Three – Caution
There have been a high volume of crew reports of GPS Interference in the Philippines, leading to GPS/ADS-B dropouts, especially in the vicinity of RPLL/Manila
Reference: Member Reports
Issued: October, 2016, valid until: Ongoing
Plain English Multiple reports from international crews of GPS outages inbound to RPLL. GPS and ADS-B failures, similar to the below:
I wish to highlight to your organisation a most unacceptable hazard in safety in the Manila Area. Special note needs to be taken and heeded by all arriving crew. 1) GA are slot controlled 2) Allow sufficient fuel for lots of low level vectoring and expect it. 3) Note the TMA radar is U/S and controllers need to use phone patch to area radar to confirm any situational issues they have procedurally controlling aircraft.- seriously affecting sequencing 4) EXPECT your GPS to be trashed 5) Only one ILS app therefore if you are expecting a GPS app- forget it. I recently flew our aircraft into Manila and when we were within 30 nm our GPS system failed. This affects ADS –B of course as well as ability to use GPS based systems. Eg synthetic vision. Apparently the issue is that North of the field the Military have set up some system that affects the GPS signals. ( unconfirmed that it is the case but the signals are corrupted) Expect GPS to return only when on the ground. On departure and early climb out you will experience loss of GPS. This will clear when you are 30 nm plus from RPLL.
Reference: Notam B1584/17
Issued: May 8, 2017, valid until: Aug 8, 2017
Plain English: Reports of GPS interference affecting RPLL/Manila Airport. This Notam has expired, no renewal has been issued.
B1584/17 - ALL ACFT ARRIVING AND DEPARTING AT NINOY AQUINO INTL AP (NAIA) ARE ADZ TO EXER EXTREME CTN DUE TO ACFT REPORTS OF GPS INTERFERENCE. RMK: ALL OTHER OCCURENCES OF GPS INTERFERENCE MUST BE REPORTED. 08 MAY 07:01 2017 UNTIL 08 AUG 08:00 2017 ESTIMATED. CREATED: 08 MAY 07:02 2017