350A33203000

Name: 350A33203000
SKU: 350A33203000

SPIDER

OEM

Specifications

Part Number: 350A33203000
Manufacturer: Airbus
ATA ChapterMaintenance system chapter: 65 — Tail Rotor Drive
CapabilitySystem area (hydraulics, avionics, landing gear…): Structures
Inventory ClassRotable, expendable, or consumable: Expendable
Certification: OEM
Aircraft Category: Wide-Body
Criticality: Standard

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

—

Component-change rate (FAA K-code)

low confidence

SDR reports: 2
Replace events: 1
Repair events: 0
K-code events: 1

Reporting window 2015-03-13 – 2015-06-13Dominant 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

4directives reference this part number — recurring compliance demand wherever it flies

Most recent

FAAAD 2026-09-15effective Jul 21, 2026Prohibition
The FAA is superseding Airworthiness Directive (AD) 2023-01-04 for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2023-01-04 required, for helicopters with certain part- numbered tail rotor head (TRH) spider pitch change units installed, inspecting the pitch change spider nut (nut) for correct installation; marking a 2 to 5 mm wide black paint index mark and repetitively inspecting the alignment of the marking; and performing additional inspections and corrective actions if necessary. Since the FAA issued AD 2023-01-04, new or more restrictive airworthiness limitations were issued, which terminated the requirement for the repetitive inspections of the black paint index marking. This AD requires the same actions as AD 2023-01-04, except for the repetitive black paint index marking inspections and prohibits installing certain parts unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.
EASAAD 2021-0282effective Jul 17, 2024Mixed actions
No summary available - see the EASA publication.
EASAAD 2021-0282-R1effective Jul 17, 2024Mixed actions
No summary available - see the EASA publication.
FAAAD 2023-01-04effective Mar 8, 2023ProhibitionNamed as replacement part
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. This AD was prompted by an occurrence reported where during an inspection of a tail rotor head (TRH) pitch change spider, excessive play and excessive wear were detected, due to an unwanted rotating motion. This AD requires for helicopters with certain part- numbered TRH spider pitch change units installed, inspecting for correct installation of the spider pitch change nut (nut); marking a 2 to 5 mm wide black paint index mark and repetitively inspecting the alignment of the marking; and additional inspections and corrective actions if necessary. This AD also allows an affected part to be installed on a helicopter if certain requirements of this AD are met. 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.