406040500123
FREEWHEEL UNIT
Specifications
- Part Number
- 406040500123
- Manufacturer
- —
- ATA ChapterMaintenance system chapter
- 63 — Main Rotor Drive(s)Field reports: 63 (100%) — 11 reports
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Electromechanical
- Inventory ClassRotable, expendable, or consumable
- Rotable
- Certification
- unknown
- Aircraft Category
- General-Aviation
- Criticality
- Critical
- Life & ShelfTypical service/shelf life — verify against OEM data
- —
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
100%
Scrap Propensity (SDR-derived)
- SDR reports
- 11
- Replace events
- 11
- Repair events
- 0
- K-code events
- 11
Reporting window 1998-04-06 – 1999-10-20Dominant chapter ATA 63
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(1)
Data Sources(1)
- 2026-03-07
Quick Facts
Airframes1 applicable
AlternatesNone recorded
ClassRotable
CriticalityCritical
CategoryGeneral-Aviation
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