MS948906

Name: MS948906
SKU: MS948906

BOLT

OEM

Specifications

Part Number: MS948906
Manufacturer: —
ATA ChapterMaintenance system chapter: 77 — Engine Indicating
CapabilitySystem area (hydraulics, avionics, landing gear…): Consumables / Hardware
Inventory ClassRotable, expendable, or consumable: Consumable
Certification: OEM
Aircraft Category: Multi-Category
Criticality: Standard

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: 1

Reporting window 1995-03-20 – 2021-06-01Dominant chapter ATA 77

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 2025-05-13effective Apr 23, 2025Mixed actions
The FAA is adopting a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. (P&WC) Model PW535E and PW535E1 engines. This AD was prompted by a manufacturer design review that indicated certain flange bolts securing the gas generator case and turbine support case are susceptible to cracking at their current low- cycle fatigue (LCF) life. This AD requires repetitive borescope inspections (BSI) of the gas generator case to turbine support case retaining bolts for evidence of bolt cracks, bolt fracture, missing bolts, or loose bolts and replacement, if necessary, as specified in a Transport Canada AD, which is incorporated by reference. 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.