Widebody Transport
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Workload
ATC Issue All Types; Deviation - Speed All Types; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter Unstabilized Approach
General None Reported / Taken
Procedure; Human Factors; Aircraft
Cleared to descend via the Seavu2 Arrival; Cleared ILS to runway 24R. Speeds assigned (up and down) from 250 to 180 knots. Approach clearance cancelled. Descend to 2;600 feet; maintain 190 knots until glide slope; cleared to intercept the glideslope from that altitude.Due to higher speeds and late clearance for the approach; horizontal mode left in 'NAV.' FMS NAV was verified as coinciding with localizer (note: not cleared to intercept the localizer). Once cleared the approach; the FMA initially indicated localizer capture; but subsequently reverted to heading with no pilot input. Without the localizer capture; the glideslope did not capture. I disconnected autopilot which resulted in a slight climb above assigned altitude (<300 feet). Repeated attempts to arm the approach failed so manual control to intercept and track the localizer and glideslope without flight director guidance. High speed until approaching glideslope along with failure of localizer and glideslope capture resulted in higher than normal rate of descent. Approaching 1;200 feet acquired runway 24R visually. Approaching 1;000 feet Pilot Monitoring announced high airspeed but we continued approach due to VMC conditions and achieved stable criteria by 500 feet.
On the approach to LAX; the First Officer was high and fast; but was stable by 500 feet.