Hawker 800 captain reported encountering wake turbulence four miles in trail of a B737 on approach t...

Attributes
ACN	1480449
Time
Date	201709
Local Time Of Day	0601-1200
Place
Locale Reference	LAX.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	BAe 125 Series 800
Operating Under FAR Part	Part 135
Flight Phase	Final Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 5600 Flight Crew Type 2000
Events
Anomaly	Inflight Event / Encounter Wake Vortex Encounter

Narrative:

We experienced moderate wake turbulence from a B737 4 miles in front of us. We were flying the ILS runway 25L with the localizer and GS captured by the autopilot; 8 NM out; when suddenly the aircraft started to shake and the autopilot started compensating strong roll movements. Suspecting wake turbulence I decided to disconnect the autopilot; apply power; and climb to get out of the wake. Once out of the turbulence we reported the incident to lax tower and flew most of the approach one dot above the GS. The turbulence continued through the whole approach phase almost down to the runway. I can tell that because I tried to recapture the GS about 1 NM from the runway and I felt a light roll force as I tried to descend to the GS; so I decided to land beyond the 1500 aiming marks.

Original NASA ASRS Text

Title: Hawker 800 Captain reported encountering wake turbulence four miles in trail of a B737 on approach to LAX.

Narrative: We experienced moderate wake turbulence from a B737 4 miles in front of us. We were flying the ILS Runway 25L with the LOC and GS captured by the autopilot; 8 NM out; when suddenly the aircraft started to shake and the autopilot started compensating strong roll movements. Suspecting wake turbulence I decided to disconnect the autopilot; apply power; and climb to get out of the wake. Once out of the turbulence we reported the incident to LAX Tower and flew most of the approach one dot above the GS. The turbulence continued through the whole approach phase almost down to the runway. I can tell that because I tried to recapture the GS about 1 NM from the runway and I felt a light roll force as I tried to descend to the GS; so I decided to land beyond the 1500 aiming marks.

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.

Hawker 800 captain reported encountering wake turbulence four miles in trail of a B737 on approach to lax.