AS350

STRUCTURE

PMA

Specifications

Part Number
AS350
Manufacturer
ATA ChapterMaintenance system chapter
53 — Fuselage
CapabilitySystem area (hydraulics, avionics, landing gear…)
Structures
Inventory ClassRotable, expendable, or consumable
Expendable
Certification
PMA
Aircraft Category
Criticality

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

Component-change rate (FAA K-code)*
low confidence

* Structural ATA chapter (53). Verb-based propensity is suppressed because "REPAIRED" in the SDR text typically refers to the airframe being repaired around the part, not the part itself. FAA K-code component-change rate is the honest signal.

SDR reports
1
Replace events
0
Repair events
1
K-code events
1
Reporting window 2002-10-142002-10-14Dominant chapter ATA 53

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 2021-16-16effective Oct 13, 2021Prohibition

    The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, and AS350D helicopters; and Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. This AD was prompted by reports that the lanyards (bead chain tethers), which hold the quick release pins to the forward bracket assembly of certain litter kits, can loop around the directional control pedal stubs, limiting the movement of the pedals. This AD requires modification of the lanyard attachment location for certain litter kit installations. 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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