21SN04226A
PRESSURE SWITCH
Specifications
- Part Number
- 21SN04226A
- Manufacturer
- —
- ATA ChapterMaintenance system chapter
- 79 — OilField reports: 79 (100%) — 4 reports
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Environmental / Cabin
- Inventory ClassRotable, expendable, or consumable
- Rotable
- Certification
- PMA
- Aircraft Category
- Unknown
- Criticality
- Standard
- Life & ShelfTypical service/shelf life — verify against OEM data
- —
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 1996-12-02 – 2006-10-16Dominant 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(5)
Data Sources(1)
- 2026-03-07
Quick Facts
Airframes5 applicable
AlternatesNone recorded
ClassRotable
CriticalityStandard
CategoryUnknown
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