8543
PRESSURE SWITCH
Specifications
- Part Number
- 8543
- Manufacturer
- Saab
- ATA ChapterMaintenance system chapter
- 38 — Water / Waste
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Electromechanical
- Inventory ClassRotable, expendable, or consumable
- Expendable
- Certification
- OEM
- Aircraft Category
- Regional
- Criticality
- Standard
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
100%
Scrap Propensity (SDR-derived)
- SDR reports
- 4
- Replace events
- 4
- Repair events
- 0
- K-code events
- 0
Reporting window 1998-02-27 – 2007-04-20Dominant chapter ATA 79
Directional indicator only. Reflects what operators reported to the FAA when a difficulty was logged — not a fleet-normalized failure rate or a cost-based BER. Use alongside operator-specific data.
Airframe Applicability(8)
Data Sources(1)
- 2026-03-07
Quick Facts
Airframes8 applicable
AlternatesNone recorded
ClassExpendable
CriticalityStandard
CategoryRegional
Know your business mix?
Upload your part numbers and get instant analytics — airframe breakdown, ATA depth, PMA concentration, and more.
Coming SoonSimilar Parts(8)
-018
Lavatory Service Shutoff Valve
ATA 38OEM
-018
Lavatory Service Shutoff Valve
ATA 38OEM
-101 and Adams Rite Aerospace Part Number AR9030-3D11D492
Faucet Assembly
ATA 38OEM
-101 and Adams Rite Aerospace Part Number AR9030-3D11D492
Faucet Assembly
ATA 38OEM
-111AA
LAVATORY ASSY, TOP
ATA 38OEM
-111AA
LAVATORY ASSY, TOP
ATA 38OEM
-113AA
LAVATORY ASSY, TOP
ATA 38OEM
-113AA
LAVATORY ASSY, TOP
ATA 38OEM