CM358920

CIRCUIT BREAKER

OEM

Specifications

Part Number
CM358920
Manufacturer
ATA ChapterMaintenance system chapter
24 — Electrical PowerField reports: 24 (100%) — 4 reports
CapabilitySystem area (hydraulics, avionics, landing gear…)
Electromechanical
Inventory ClassRotable, expendable, or consumable
Expendable
Certification
OEM
Aircraft Category
Criticality
Life & ShelfTypical service/shelf life — verify against OEM data

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

100%
Scrap Propensity (SDR-derived)
low confidence
SDR reports
4
Replace events
3
Repair events
0
K-code events
0
Reporting window 2007-12-232019-07-22Dominant chapter ATA 24

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.

Airworthiness Directive coverage

FAA / EASA public regulatory data

1directive references this part number — recurring compliance demand wherever it flies
Most recent
  • FAAAD 2021-22-21effective Jan 3, 2022Prohibition

    The FAA is adopting a new airworthiness directive (AD) for all ASI Aviation (type certificate previously held by Reims Aviation S.A.) Model F406 airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as failure of a circuit breaker (CB) switch. This AD requires replacing certain CB switches and establishing a life limit for the CB switches. The FAA is issuing this AD to address the unsafe condition on these products.

Directives citing this part number in the FAA / EASA regulatory corpus we have processed — not a complete historical AD list. An AD is a compliance requirement that drives scheduled work (inspections, replacements, modifications) on the fleets that carry the part; a directive naming this PN as the replacement part is install demand, not an action against it — and none of this is a prediction that the part will fail.

Airframe Applicability(2)

Data Sources(1)

Quick Facts

Airframes2 applicable
AlternatesNone recorded
ClassExpendable
CriticalityUnknown
CategoryUnknown

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