L535H2120301
FRAME
Specifications
- Part Number
- L535H2120301
- Manufacturer
- UROCOP
- ATA ChapterMaintenance system chapter
- 53 — Fuselage
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- unknown
- Inventory ClassRotable, expendable, or consumable
- Expendable
- Certification
- OEM
- Aircraft Category
- General-Aviation
- Criticality
- Standard
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
* 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
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 2026-03-02effective Feb 17, 2026ProhibitionNamed as replacement part
The FAA is superseding Airworthiness Directive (AD) 2014-13- 09, which applied to certain Airbus Helicopters Deutschland GmbH (AHD) helicopters Model EC135P1, EC135P2, EC135P2+, EC135T1, EC135T2, and EC135T2+ helicopters. AD 2014-13-09 required repetitive visual inspections of the ring frame X9227 for a crack, and if there is a crack, replacing the ring frame. Since the FAA issued AD 2014-13-09, AHD Helicopters determined that this unsafe condition also applies to AHD Model EC135P3 and EC135T3 helicopters. This AD continues to require some of the actions required by AD 2014-13-09 and expands the applicability by including AHD Model EC135P3 and EC135T3 helicopters and also reduces the compliance time for the repetitive inspections. This AD also allows the modification of the ring frame X9227 as terminating action for the repetitive visual inspections. The FAA is issuing this AD to address the unsafe condition on these products.
- EASAAD 2025-0174-R1effective Sep 29, 2025Mixed actionsNamed as replacement part
No summary available - see the EASA publication.
- EASAAD 2025-0174effective Sep 29, 2025Mixed actionsNamed as replacement part
No summary available - see the EASA publication.
- EASAAD 2013-0289-Eeffective Dec 10, 2013Mixed actionsNamed 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(1)
Data Sources(1)
- 2026-03-07
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