LW12427
CYLINDER HEAD
Specifications
- Part Number
- LW12427
- Manufacturer
- LYC
- ATA ChapterMaintenance system chapter
- 85 — Reciprocating Engine
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Engine Accessories
- Inventory ClassRotable, expendable, or consumable
- Rotable
- Certification
- OEM
- Aircraft Category
- General-Aviation
- Criticality
- Critical
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
79%
Scrap Propensity (SDR-derived)
- SDR reports
- 33
- Replace events
- 15
- Repair events
- 4
- K-code events
- 14
Reporting window 1997-05-08 – 2024-08-02Dominant chapter ATA 85
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(4)
Alternate / Related Part Numbers(1)
AEL65102ST12.2, AEL65102SN12.2pma replacement
Data Sources(1)
- 2026-03-07
Quick Facts
Airframes4 applicable
Alternates1 found
ClassRotable
CriticalityCritical
CategoryGeneral-Aviation
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