A319 flight crew reported fumes at departure gate which dissipated and returned during descent at de...

Attributes
ACN	1683705
Time
Date	201909
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Taxi Descent
Flight Plan	IFR
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Total 2
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

Fumes smelled prior to gate departure after high pressure air was applied to aircraft with packs on. Smell dissipated after air was removed. Smell came back strongly on descent. The entire crew was aware of the odor. Don't know the source of the odor or why it occurred. Ground crew may need to wait to be told to apply high pressure air to ducts so flight crew can turn off packs prior per checklist.

Original NASA ASRS Text

Title: A319 flight crew reported fumes at departure gate which dissipated and returned during descent at destination.

Narrative: Fumes smelled prior to gate departure after high pressure air was applied to aircraft with Packs on. Smell dissipated after air was removed. Smell came back strongly on descent. The entire crew was aware of the odor. Don't know the source of the odor or why it occurred. Ground crew may need to wait to be told to apply high pressure air to ducts so flight crew can turn off packs prior per checklist.

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.