9551A

INDICATOR

PMA

Specifications

Part Number
9551A
Manufacturer
ATA ChapterMaintenance system chapter
34 — NavigationField reports: 34 (100%) — 2 reports
CapabilitySystem area (hydraulics, avionics, landing gear…)
Instruments
Inventory ClassRotable, expendable, or consumable
Rotable
Certification
PMA
Aircraft Category
Unknown
Criticality
Standard
Life & ShelfTypical service/shelf life — verify against OEM data

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

Component-change rate (FAA K-code)
low confidence
SDR reports
2
Replace events
0
Repair events
2
K-code events
1
Reporting window 1997-10-022002-12-11Dominant chapter ATA 34

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
CriticalityStandard
CategoryRotorcraft

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