<< >> NASA ASRS Report 1181210, June 2014

B737-800 flight crew reported difficulty adhering to charted altitudes on arrival into lax when wake turbulence from preceding B777 distracted them.

Attributes
ACN	1181210
Time
Date	201406
Local Time Of Day	1201-1800
Place
Locale Reference	LAX.Airport
State Reference	CA
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR SEAVU2
Flight Plan	IFR
Aircraft 2
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Person 2
Function	Pilot Not Flying First Officer
Events
Anomaly	Deviation - Altitude Overshoot Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Clearance Inflight Event / Encounter Wake Vortex Encounter

Narrative:

Descending into lax via the SEAVU2 arrival and cleared for the visual to [runway] 25L around pauma ATC asked us to cross konzl at 16;000 ft. In a VNAV speed and following a 777 we were experiencing quite a bit of wake turbulence. Made the restriction at konzl for traffic but were briefly below the path at engli. Back in VNAV path the rest of the descent and landing. No comment from ATC. Just got busy and a little distracted with the wake turbulence and looking for crossing traffic.

Related reports:

• B737 first officer reported the difficulty the aircraft has ...

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Original NASA ASRS Text

Title: B737-800 flight crew reported difficulty adhering to charted altitudes on arrival into LAX when wake turbulence from preceding B777 distracted them.

Narrative: Descending into LAX via the SEAVU2 arrival and cleared for the visual to [Runway] 25L around PAUMA ATC asked us to cross KONZL at 16;000 FT. In a VNAV speed and following a 777 we were experiencing quite a bit of wake turbulence. Made the restriction at KONZL for traffic but were briefly below the path at ENGLI. Back in VNAV path the rest of the descent and landing. No comment from ATC. Just got busy and a little distracted with the wake turbulence and looking for crossing traffic.

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.