Emb-175 captain reported odor of smelly socks on takeoff.

Attributes
ACN	1627396
Time
Date	201903
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	EMB ERJ 170/175 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

Dirty sock smell on takeoff. Donned O2 mask. Asked flight attendants if they smelled it as well; they said no. After ten minutes the smell went away. It wasn't extreme; I've smelled worse. It was also first flight of day. Notified maintenance and made a logbook entry. Figure out what is causing smell. Is it oil or is it something that is getting into system via ram air intake?

Original NASA ASRS Text

Title: EMB-175 Captain reported odor of smelly socks on takeoff.

Narrative: Dirty sock smell on takeoff. Donned O2 mask. Asked flight attendants if they smelled it as well; they said no. After ten minutes the smell went away. It wasn't extreme; I've smelled worse. It was also first flight of day. Notified Maintenance and made a logbook entry. Figure out what is causing smell. Is it oil or is it something that is getting into system via ram air intake?

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.