556517531

GEARBOX

PMA

Specifications

Part Number
556517531
Manufacturer
ATA ChapterMaintenance system chapter
27 — Flight Controls
CapabilitySystem area (hydraulics, avionics, landing gear…)
Engine Accessories
Inventory ClassRotable, expendable, or consumable
Rotable
Certification
PMA
Aircraft Category
Unknown
Criticality
Unknown

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

75%
Scrap Propensity (SDR-derived)
low confidence
SDR reports
8
Replace events
6
Repair events
2
K-code events
7
Reporting window 1995-09-211997-11-12Dominant chapter ATA 27

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(2)

Data Sources(1)

Quick Facts

Airframes2 applicable
AlternatesNone recorded
ClassRotable
CriticalityUnknown
CategoryUnknown

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