<< >> NASA ASRS Report 357731, January 1997

Medium large transport crew missed a vector from base leg to final approach at lax. They were then vectored through the final and then left to a downwind for eventual setup on runway 25L. A subsequent runway change without warning caused the crew some consternation. Flight crew was lacking in situational awareness.

Attributes
ACN	357731
Time
Date	199701
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax tower : cos
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 160 flight time total : 18000 flight time type : 350
ASRS Report	357731
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : instrument
Experience	flight time last 90 days : 30 flight time total : 3500 flight time type : 30
ASRS Report	357730
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flying into lax on sadde 6 cleared to fly 070 degrees after smo. Several vectors after smo cleared to 2500 ft turned base. We missed a turn given by ATC then were told to turn to another heading and we would be vectored eastbound to a downwind. Were not told of runway change. We were later cleared to turn to intercept runway 25L localizer at 2500 ft. We had to change frequency, etc, were told we were 1 mi north of runway 25L localizer. Told to call ATC approach control. Supplemental information from acn 357730: I apparently missed a subsequent heading to turn base. There was a speed restr and altitude change that we read back, but ATC said we missed heading.

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Original NASA ASRS Text

Title: MLG CREW MISSED A VECTOR FROM BASE LEG TO FINAL APCH AT LAX. THEY WERE THEN VECTORED THROUGH THE FINAL AND THEN LEFT TO A DOWNWIND FOR EVENTUAL SETUP ON RWY 25L. A SUBSEQUENT RWY CHANGE WITHOUT WARNING CAUSED THE CREW SOME CONSTERNATION. FLC WAS LACKING IN SITUATIONAL AWARENESS.

Narrative: FLYING INTO LAX ON SADDE 6 CLRED TO FLY 070 DEGS AFTER SMO. SEVERAL VECTORS AFTER SMO CLRED TO 2500 FT TURNED BASE. WE MISSED A TURN GIVEN BY ATC THEN WERE TOLD TO TURN TO ANOTHER HEADING AND WE WOULD BE VECTORED EBOUND TO A DOWNWIND. WERE NOT TOLD OF RWY CHANGE. WE WERE LATER CLRED TO TURN TO INTERCEPT RWY 25L LOC AT 2500 FT. WE HAD TO CHANGE FREQ, ETC, WERE TOLD WE WERE 1 MI N OF RWY 25L LOC. TOLD TO CALL ATC APCH CTL. SUPPLEMENTAL INFO FROM ACN 357730: I APPARENTLY MISSED A SUBSEQUENT HEADING TO TURN BASE. THERE WAS A SPD RESTR AND ALT CHANGE THAT WE READ BACK, BUT ATC SAID WE MISSED HEADING.

Data retrieved from NASA's ASRS site as of July 2007 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.