Late descent clearances and an unexpected runway change inbound to lax on the RIIVR2 STAR overtaxed ...

Attributes
ACN	1042772
Time
Date	201210
Local Time Of Day	1201-1800
Place
Locale Reference	SCT.TRACON
State Reference	CA
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Route In Use	Vectors STAR RIIVR2
Flight Plan	IFR
Component
Aircraft Component	FMS/FMC
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Flying
Events
Anomaly	ATC Issue All Types Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Clearance Deviation - Track / Heading All Types

Narrative:

We had briefed the RIIVR2 arrival and ILS 25L approach. Passing gramm we still had not been handed off to socal approach. Approaching rustt we were handed off to approach and cleared for RIIVR2 arrival and ILS 24R approach. This left us high and briefed for the wrong runway. Because we would not be able to satisfy riivr crossing restriction; we requested and received relief. While setting up and briefing ILS 24R we passed riivr and realized we were navigating to luvyn still on the ILS 25L approach track. We had insufficient time to enter the ILS 24R procedure in to the FMS and complete the approach briefing for the new runway prior to the IAF due to the late ATC clearance. We requested and received a heading to intercept the ILS 24R approach and were then cleared for the approach. The approach and landing were uneventful. Approach control did not advise of any loss of separation.

Original NASA ASRS Text

Title: Late descent clearances and an unexpected runway change inbound to LAX on the RIIVR2 STAR overtaxed the flight crew of a B737-800 and required Approach Control vectors while the newly assigned ILS was programmed and activated.

Narrative: We had briefed the RIIVR2 Arrival and ILS 25L approach. Passing GRAMM we still had not been handed off to SoCal Approach. Approaching RUSTT we were handed off to Approach and cleared for RIIVR2 Arrival and ILS 24R approach. This left us high and briefed for the wrong runway. Because we would not be able to satisfy RIIVR crossing restriction; we requested and received relief. While setting up and briefing ILS 24R we passed RIIVR and realized we were navigating to LUVYN still on the ILS 25L approach track. We had insufficient time to enter the ILS 24R procedure in to the FMS and complete the approach briefing for the new runway prior to the IAF due to the late ATC clearance. We requested and received a heading to intercept the ILS 24R approach and were then cleared for the approach. The approach and landing were uneventful. Approach Control did not advise of any loss of separation.

Data retrieved from NASA's ASRS site as of July 2013 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.

Late descent clearances and an unexpected runway change inbound to lax on the RIIVR2 STAR overtaxed the flight crew of a B737-800 and required approach control vectors while the newly assigned ILS was programmed and activated.