Part catalog
978840-4
VALVE # PACK A/I VALVE
ATA 21 · Air Conditioning
Catalog record
- Part number
- 978840-4
- ATA chapter
- ATA 21 · Air Conditioning
- Source observations
- 6
- Last observed
- 2026-04-20
Catalog data is source-backed reference information. It does not establish availability, repair capability, certification, traceability, ownership, or airworthiness.