6550820

SEAL DEPRESSOR

Specifications

Part Number: 6550820
Manufacturer: Boeing
ATA ChapterMaintenance system chapter: 57 — WingsField reports: 57 (59%) · 53 (26%) · 55 (8%) — 145 reports
CapabilitySystem area (hydraulics, avionics, landing gear…): Consumables / Hardware
Inventory ClassRotable, expendable, or consumable: —
Certification: —
Aircraft Category: Unknown
Criticality: Standard
Life & ShelfTypical service/shelf life — verify against OEM data: —

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

99%

Component-change rate (FAA K-code)*

high confidence

* Structural ATA chapter (57). 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: 145
Replace events: 80
Repair events: 62
K-code events: 143

Reporting window 2004-01-01 – 2016-11-01Dominant chapter ATA 57

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.