Air carrier first officer reported slowing below their assigned speed on the approach due to distrac...

Attributes
ACN	1533564
Time
Date	201804
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 49 Flight Crew Total 9842 Flight Crew Type 357
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Deviation - Speed All Types

Narrative:

On vectors to approach the approach controller cleared us a heading to join the localizer; clearance for the ILS; 4000 ft until established; contact tower at zzzzz; and 170 knots until ZZZZZ1. All of those instructions came at one time. We intercepted the glideslope at 4;000 ft and the captain continued calling for configuring for landing. Because I was performing landing flows; checking in with the tower; and the landing checklist all in succession; I didn't notice that he had begun to slow to the final approach speed prematurely. I pointed out the speed as soon as I became aware; but we were already nearing to ZZZZZ1 at this point. The captain thought we were given 170 knots until zzzzz. I think the confusion came about as there was a restriction at ZZZZZ1 and to call tower at zzzzz in the same clearance. Our final approach speed was about 140 knots and we were slowed maybe as much as 3 miles before ZZZZZ1.

Original NASA ASRS Text

Title: Air Carrier First Officer reported slowing below their assigned speed on the approach due to distraction and confusion.

Narrative: On vectors to approach the approach controller cleared us a heading to join the LOC; clearance for the ILS; 4000 ft until established; contact tower at ZZZZZ; and 170 knots until ZZZZZ1. All of those instructions came at one time. We intercepted the glideslope at 4;000 ft and the captain continued calling for configuring for landing. Because I was performing landing flows; checking in with the tower; and the landing checklist all in succession; I didn't notice that he had begun to slow to the final approach speed prematurely. I pointed out the speed as soon as I became aware; but we were already nearing to ZZZZZ1 at this point. The Captain thought we were given 170 knots until ZZZZZ. I think the confusion came about as there was a restriction at ZZZZZ1 and to call tower at ZZZZZ in the same clearance. Our final approach speed was about 140 knots and we were slowed maybe as much as 3 miles before ZZZZZ1.

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.

Air carrier first officer reported slowing below their assigned speed on the approach due to distraction and confusion.