LW12993
CYLINDER HEAD
Specifications
- Part Number
- LW12993
- 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)
100%
Scrap Propensity (SDR-derived)
- SDR reports
- 11
- Replace events
- 7
- Repair events
- 0
- K-code events
- 7
Reporting window 1996-06-18 – 2020-05-24Dominant 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(3)
Alternate / Related Part Numbers(1)
AEL10927ST13.0, AEL10927SN13.0pma replacement
Data Sources(1)
- 2026-03-07
Quick Facts
Airframes3 applicable
Alternates1 found
ClassRotable
CriticalityCritical
CategoryGeneral-Aviation
Know your business mix?
Upload your part numbers and get instant analytics — airframe breakdown, ATA depth, PMA concentration, and more.
Coming Soon