4G6410A00133
BLADE
Specifications
- Part Number
- 4G6410A00133
- Manufacturer
- —
- ATA ChapterMaintenance system chapter
- 64 — Tail Rotor
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Structures
- Inventory ClassRotable, expendable, or consumable
- Rotable
- Certification
- OEM
- Aircraft Category
- Unknown
- Criticality
- Critical & Life-Limited
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
- SDR reports
- 1
- Replace events
- 1
- Repair events
- 0
- K-code events
- 1
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
- FAAAD 2021-14-18effective Aug 24, 2021Prohibition
The FAA is superseding Airworthiness Directive (AD) 2011-18-52 for certain Agusta S.p.A. (now Leonardo S.p.a.) Model AB139 and AW139 helicopters. AD 2011-18-52 required revising the life limit for certain part-numbered tail rotor (T/R) blades, updating the helicopter's historical records, repetitively inspecting each T/R blade for a crack or damage, and depending on the results, replacing the T/R blade. This AD was prompted by the manufacturer developing improved T/R blades using different materials and establishing life limits for each improved blade. This AD retains certain requirements from AD 2011-18- 52, revises certain requirements from AD 2011-18-52, and expands the applicability to include the newly-designed T/R blades. The FAA is issuing this AD to address the unsafe condition on these products.
- EASAAD 2019-0073effective Apr 11, 2019Mixed actions
No summary available - see the EASA publication.
- EASAAD 2012-0076effective Feb 27, 2014ProhibitionNamed as replacement part
No summary available - see the EASA publication.
- EASAAD 2012-0076-R1effective Feb 27, 2014ProhibitionNamed as replacement part
No summary available - see the EASA publication.
- EASAAD 2012-0076-R2effective Feb 27, 2014ProhibitionNamed as replacement part
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(2)
Data Sources(1)
- 2026-03-07
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