B737 flight crew reported being notified post flight of possible flap track damage.

Attributes
ACN	1521744
Time
Date	201802
Local Time Of Day	1801-2400
Place
Locale Reference	BWI.Airport
State Reference	MD
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Make Model Name	B737 Next Generation Undifferentiated
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 200 Flight Crew Type 9000
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter Weather / Turbulence

Narrative:

We departed late on the last leg of a three-day pairing. There was a light snow storm falling on bwi upon our arrival. We didn't think the snow cover on the ground was going to be significant during our briefings so we failed to talk about leaving the flaps at 15 during taxi in for contamination removal. Upon landing; I selected the flaps up and we taxied to the gate where we finished our trip. We were alerted by the chief pilot's office that there may have been some flap track damage due to the re-freezing of contaminates. I was notified of this potential problem [a few days later] and don't remember much about it other than what I have said.

Original NASA ASRS Text

Title: B737 flight crew reported being notified post flight of possible flap track damage.

Narrative: We departed late on the last leg of a three-day pairing. There was a light snow storm falling on BWI upon our arrival. We didn't think the snow cover on the ground was going to be significant during our briefings so we failed to talk about leaving the flaps at 15 during taxi in for contamination removal. Upon landing; I selected the flaps up and we taxied to the gate where we finished our trip. We were alerted by the Chief Pilot's Office that there may have been some flap track damage due to the re-freezing of contaminates. I was notified of this potential problem [a few days later] and don't remember much about it other than what I have said.

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.