Emb-175 first officer reported encountering wake turbulence on arrival to lax in trail of a B747.

Attributes
ACN	1548527
Time
Date	201806
Local Time Of Day	0001-0600
Place
Locale Reference	LAX.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 170/175 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	Vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	B747 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Multiengine Flight Crew Commercial Flight Crew Instrument
Experience	Flight Crew Type 104
Events
Anomaly	Inflight Event / Encounter Wake Vortex Encounter

Narrative:

We were getting vectors to intercept the ILS localizer runway 25L at lax. ATC alerted us of a heavy 747 traffic five to six miles in front of us; we acknowledged ATC of the traffic in sight. Seconds after; we experienced heavy wake turbulence that made the PIC (captain) disconnect the autopilot and recover from the unexpected flight attitude; nose down and left and right banking about 30 to 35 degrees. We contacted ATC immediately and requested vectors to avoid the heavy wake turbulence. ATC gave us 15 degrees off to the right; which we experienced a second wake turbulence ripple. We notified ATC of the second heavy wake turbulence; ATC asked us if we wanted to be vectored to re-enter the ILS localizer runway 25L. We accepted; and we performed a 360 to re-enter vectors for the approach. I would suggest more distance between traffic especially in the approach configuration; slow and heavy.

Original NASA ASRS Text

Title: EMB-175 First Officer reported encountering wake turbulence on arrival to LAX in trail of a B747.

Narrative: We were getting vectors to intercept the ILS LOC runway 25L at LAX. ATC alerted us of a heavy 747 traffic five to six miles in front of us; we acknowledged ATC of the traffic in sight. Seconds after; we experienced heavy wake turbulence that made the PIC (Captain) disconnect the autopilot and recover from the unexpected flight attitude; nose down and left and right banking about 30 to 35 degrees. We contacted ATC immediately and requested vectors to avoid the heavy wake turbulence. ATC gave us 15 degrees off to the right; which we experienced a second wake turbulence ripple. We notified ATC of the second heavy wake turbulence; ATC asked us if we wanted to be vectored to re-enter the ILS LOC runway 25L. We accepted; and we performed a 360 to re-enter vectors for the approach. I would suggest more distance between traffic especially in the approach configuration; slow and heavy.

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.