Captain reported failing to meet altitude and speed restrictions on an RNAV arrival into den. Late c...

Attributes
ACN	1543540
Time
Date	201805
Local Time Of Day	1801-2400
Place
Locale Reference	D01.TRACON
State Reference	CO
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Widebody Transport
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 3248.63 Flight Crew Type 388.35
Events
Anomaly	ATC Issue All Types Deviation - Altitude Crossing Restriction Not Met Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Speed All Types

Narrative:

[We were flying the] kohoe 3 RNAV planning ILS 35C. ATC changed to RNAV (rnp) Z runway 35R with short notice. Surface winds from north at 17 kts. Winds aloft were probably 35 kts tailwind. At 250 kts the aircraft is near max l/d speed. With tailwind FMC reverted to 'VNAV speed' [and] missed both altitude and speed restrictions. Disconnected autopilot to make the altitude and extended speed brakes. May have overshot the 11;000 ft altitude restriction. Attempted to re-engage autopilot 4 times with no pressure on the yoke. This was happening as we begun a curved tracked approach. I don't recall the speed at doggg intersection. Eventually I was able to engage the autopilot and complete the steps necessary to complete the radius approach. Suggest that the kohoe 3 approach be re-evaluated with strong winds from the north and crossing restrictions with high efficiency aircraft like our aircraft. We don't extend the first flap setting until 240 knots on our aircraft. Late approach assignment was a major factor in workload and required briefings. On the ground during taxi in; we had a flight control EICAS message. This is a significant failure message in flight. Perhaps this contributed to the autopilot issue?

Original NASA ASRS Text

Title: Captain reported failing to meet altitude and speed restrictions on an RNAV arrival into DEN. Late clearance change and aircraft flight characteristics were cited as contributing.

Narrative: [We were flying the] KOHOE 3 RNAV planning ILS 35C. ATC changed to RNAV (RNP) Z RWY 35R with short notice. Surface winds from north at 17 kts. Winds aloft were probably 35 kts tailwind. At 250 kts the aircraft is near max l/d speed. With tailwind FMC reverted to 'VNAV Speed' [and] missed both altitude and speed restrictions. Disconnected autopilot to make the altitude and extended speed brakes. May have overshot the 11;000 ft altitude restriction. Attempted to re-engage autopilot 4 times with no pressure on the yoke. This was happening as we begun a curved tracked approach. I don't recall the speed at DOGGG intersection. Eventually I was able to engage the autopilot and complete the steps necessary to complete the radius approach. Suggest that the KOHOE 3 approach be re-evaluated with strong winds from the north and crossing restrictions with high efficiency aircraft like our aircraft. We don't extend the first flap setting until 240 knots on our aircraft. Late approach assignment was a major factor in workload and required briefings. On the ground during taxi in; we had a flight control EICAS message. This is a significant failure message in flight. Perhaps this contributed to the autopilot issue?

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.

Captain reported failing to meet altitude and speed restrictions on an RNAV arrival into den. Late clearance change and aircraft flight characteristics were cited as contributing.