Air carrier captain reported temporary loss of ads-B and GPS likely due to jamming. Captain recommen...

Attributes
ACN	1607839
Time
Date	201901
Local Time Of Day	1201-1800
Place
Locale Reference	LTAA.ARTCC
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Widebody Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Route In Use	Airway UM860
Flight Plan	IFR
Component
Aircraft Component	Data Transmission and Automatic Calling
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Events
Anomaly	Aircraft Equipment Problem Less Severe Inflight Event / Encounter Other / Unknown

Narrative:

EICAS alert ads-B out right then ads-B out left and GPS data lost. Jamming likely due to proximity to syrian airspace. After 12 minutes; alerts went away and GPS data was restored. Location ninva [iraq-sryia] waypoint on UM860 to 15 nm before srt VOR [turkey]. GPS jamming hot topics in secure content locker provided sufficient guidance to understand and evaluate what action was necessary. After contacting operations; we were informed this had occurred the day prior to another aircraft. It would have been helpful to know that prior to this event. We would have read the before mentioned information prior to this airspace. We knew where to find it and I had read it before. I think something in the remarks of the flight plan for this route about the possibility of jamming and where to find guidance would help.

Original NASA ASRS Text

Title: Air carrier Captain reported temporary loss of ADS-B and GPS likely due to jamming. Captain recommended disseminating information to all flight crews.

Narrative: EICAS alert ADS-B OUT R then ADS-B OUT L and GPS data lost. Jamming likely due to proximity to Syrian airspace. After 12 minutes; alerts went away and GPS data was restored. Location NINVA [IRAQ-SRYIA] waypoint on UM860 to 15 nm before SRT VOR [TURKEY]. GPS Jamming Hot Topics in secure content locker provided sufficient guidance to understand and evaluate what action was necessary. After contacting Operations; we were informed this had occurred the day prior to another aircraft. It would have been helpful to know that prior to this event. We would have read the before mentioned information prior to this airspace. We knew where to find it and I had read it before. I think something in the remarks of the flight plan for this route about the possibility of jamming and where to find guidance would help.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Air carrier captain reported temporary loss of ads-B and GPS likely due to jamming. Captain recommended disseminating information to all flight crews.