HC537L0002006

Name: HC537L0002006
SKU: HC537L0002006

DIAPHRAGM

OEM

Specifications

Part Number: HC537L0002006
Manufacturer: BAC
ATA ChapterMaintenance system chapter: 53 — Fuselage
CapabilitySystem area (hydraulics, avionics, landing gear…): Pneumatics
Inventory ClassRotable, expendable, or consumable: Expendable
Certification: OEM
Aircraft Category: Unknown
Criticality: Unknown

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: 2
Replace events: 2
Repair events: 0
K-code events: 2

Reporting window 2004-03-17 – 2016-03-20Dominant 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 2023-02-10effective Mar 17, 2023Mixed actionsNamed as replacement part
The FAA is superseding Airworthiness Directive (AD) 99-25-11 for certain BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ series airplanes. AD 99-25-11 required repetitive inspections for cracks along the face of the retraction attachment boss in the nose landing gear (NLG) sidewall; and corrective action, if necessary. This AD was prompted by a report of a crack found on the left-hand sidewall well on the NLG, and by the determination that additional airplanes are subject to the identified unsafe condition. This AD continues to require the actions in AD 99-25-11, and expands the applicability. 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.