B4301
CIRCUIT BREAKER
Specifications
- Part Number
- B4301
- Manufacturer
- HARTMAN
- ATA ChapterMaintenance system chapter
- 24 — Electrical Power
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Electromechanical
- Inventory ClassRotable, expendable, or consumable
- Expendable
- Certification
- OEM
- Aircraft Category
- Unknown
- Criticality
- Standard
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
94%
Scrap Propensity (SDR-derived)
- SDR reports
- 19
- Replace events
- 17
- Repair events
- 1
- K-code events
- 4
Reporting window 1996-04-26 – 2024-10-02Dominant chapter ATA 24
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
ClassExpendable
CriticalityStandard
CategoryUnknown
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