<< >> NASA ASRS Report 1695169, October 2019

Crj-200 first officer reported a 'wet socks' odor and faint smoke after transferring bleeds to APU during taxi to arrival gate.

Attributes
ACN	1695169
Time
Date	201910
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Component
Aircraft Component	APU
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

When we taxi close to the gate; I transferred the bleeds to the APU from the engine. After doing that; I noticed some smoke and wet socks smell coming out of the vents in the cockpit. We continued taxied to the gate since we were so close to it. After determining that it was a fume event; we called maintenance and they deferred the APU. No further actions taken. Cause: transferring bleeds from engines to APU.

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Original NASA ASRS Text

Title: CRJ-200 First Officer reported a 'wet socks' odor and faint smoke after transferring bleeds to APU during taxi to arrival gate.

Narrative: When we taxi close to the gate; I transferred the bleeds to the APU from the engine. After doing that; I noticed some smoke and wet socks smell coming out of the vents in the cockpit. We continued taxied to the gate since we were so close to it. After determining that it was a fume event; we called Maintenance and they deferred the APU. No further actions taken. Cause: Transferring bleeds from engines to APU.

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.