A319 captain reported a fume event during descent to destination.

Attributes
ACN	1726923
Time
Date	202002
Local Time Of Day	1201-1800
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	Descent
Flight Plan	IFR
Component
Aircraft Component	Pneumatic System
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 10000
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

Musty odor smell in cockpit. Cause: flight crew noticed a musty odor in cockpit during descent. Landed without incident. Made a write up in maintenance log. Suggestion: bleed air valve seals should be [checked] more often to prevent leaks.

Original NASA ASRS Text

Title: A319 Captain reported a fume event during descent to destination.

Narrative: Musty odor smell in cockpit. Cause: Flight crew noticed a musty odor in cockpit during descent. Landed without incident. Made a write up in Maintenance log. Suggestion: Bleed air valve seals should be [checked] more often to prevent leaks.

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.