109044001115

GEARBOX

OEM

Specifications

Part Number
109044001115
Manufacturer
ATA ChapterMaintenance system chapter
65 — Tail Rotor Drive
CapabilitySystem area (hydraulics, avionics, landing gear…)
Structures
Inventory ClassRotable, expendable, or consumable
Rotable
Certification
OEM
Aircraft Category
General-Aviation
Criticality
Critical

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

Component-change rate (FAA K-code)
low confidence
SDR reports
1
Replace events
0
Repair events
0
K-code events
0
Reporting window 2004-08-192004-08-19Dominant chapter ATA 65

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

2directives reference this part number — recurring compliance demand wherever it flies
Most recent
  • FAAAD 2021-22-10effective Dec 27, 2021Prohibition

    The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model A109E helicopters. This AD was prompted by reports that certain tail rotor gearbox assemblies were installed on Model A109E helicopters and those parts are not approved for installation on that helicopter model. Because those assemblies are not part of the type design for Model A109E helicopters, there are no overhaul or life limits included in the applicable maintenance manuals. This AD requires replacement of each affected tail rotor gearbox assembly with a serviceable part, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

  • EASAAD 2021-0031effective Feb 5, 2021Prohibition

    No summary available - see the EASA publication.

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(1)

Data Sources(1)

Quick Facts

Airframes1 applicable
AlternatesNone recorded
ClassRotable
CriticalityCritical
CategoryGeneral-Aviation

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