1626601

PRESSURE SWITCH

OEM

Specifications

Part Number
1626601
Manufacturer
ATA ChapterMaintenance system chapter
27 — Flight ControlsField reports: 27 (50%) · 29 (50%) — 2 reports
CapabilitySystem area (hydraulics, avionics, landing gear…)
unknown
Inventory ClassRotable, expendable, or consumable
Expendable
Certification
OEM
Aircraft Category
Unknown
Criticality
Standard
Life & ShelfTypical service/shelf life — verify against OEM data

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

Component-change rate (FAA K-code)
low confidence
SDR reports
2
Replace events
2
Repair events
0
K-code events
0
Reporting window 2019-08-022021-10-21Dominant chapter ATA 27

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 2023-05-01effective Apr 18, 2023Prohibition

    The FAA is adopting a new airworthiness directive (AD) for certain De Havilland Aircraft of Canada Limited Model DHC-8-400 series airplanes. This AD was prompted by reports of flap power unit (FPU) pressure switch failures resulting in flap inoperative events. This AD requires replacing the FPU or replacing the FPU pressure switch and reidentifying the FPU. This AD also prohibits the installation of affected parts. 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.

Airframe Applicability(2)

Data Sources(1)

Quick Facts

Airframes2 applicable
AlternatesNone recorded
ClassExpendable
CriticalityStandard
CategoryTurboprop

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