A B737 crew on the atl WARRR1 RNAV STAR were descending slower than expected due to weather which ca...

Attributes
ACN	1282147
Time
Date	201507
Place
Locale Reference	ATL.Airport
State Reference	GA
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR WARRR1
Flight Plan	IFR
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 199
Person 2
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Deviation - Altitude Undershoot Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance Inflight Event / Encounter Weather / Turbulence

Narrative:

The final approach controller in atl was frustrated with our descent rate. We were inbound from the west on the WARRR1 RNAV arrival; landing runway 28. We were given the descent from 12;000 feet to 7;000 feet and did so in level (lvl) change (chg) at 210 knots. Then there were two large buildups that we had to fly through; generating a period of moderate turbulence. After passing through this area of weather; we extended flaps to two. When we were handed off to the final controller; we were given a descent to 3;000 feet; our cue to be ready for the approach; so we extended flaps to five; still in lvl chg at 210 knots. Shortly thereafter he called; frustrated with our descent rate. At 210 knots; the only thing left was to lower the landing gear; which we did while still on downwind. I know we need to descend quickly and I thought we were configuring appropriately. During the period of moderate turbulence; I believe our descent rate was reduced and situational awareness can be less in a cloud. I believe these were both contributing factors.

Original NASA ASRS Text

Title: A B737 crew on the ATL WARRR1 RNAV STAR were descending slower than expected due to weather which caused the TRACON Controller grief as it was conflicting with their outbound aircraft.

Narrative: The Final Approach Controller in ATL was frustrated with our descent rate. We were inbound from the west on the WARRR1 RNAV Arrival; landing Runway 28. We were given the descent from 12;000 feet to 7;000 feet and did so in level (LVL) change (CHG) at 210 knots. Then there were two large buildups that we had to fly through; generating a period of moderate turbulence. After passing through this area of weather; we extended flaps to two. When we were handed off to the Final Controller; we were given a descent to 3;000 feet; our cue to be ready for the approach; so we extended flaps to five; still in LVL CHG at 210 knots. Shortly thereafter he called; frustrated with our descent rate. At 210 knots; the only thing left was to lower the landing gear; which we did while still on downwind. I know we need to descend quickly and I thought we were configuring appropriately. During the period of moderate turbulence; I believe our descent rate was reduced and situational awareness can be less in a cloud. I believe these were both contributing factors.

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.

A B737 crew on the atl WARRR1 RNAV STAR were descending slower than expected due to weather which caused the TRACON controller grief as it was conflicting with their outbound aircraft.