Wiki·reference·reference/glossary.md

Glossary

Aviation + Ramco-specific terms used throughout this Brain. Entries are terse; descend into the wikilinked page for depth.

Aviation terms

  • Aircraft — a registered airframe. Identified by registration number. See Aircraft.
  • Airworthy — the aircraft is legally cleared to fly. Loses airworthiness when open unresolved discrepancies exist or the CertificateOfMaintenance is expired.
  • AME — Aircraft Maintenance Execution. A maintenance work package on an aircraft, also called a "tech log". See AMEPackage.
  • AOG — Aircraft on Ground. An aircraft that cannot fly until maintenance is completed. Highest operational priority.
  • ATA — Air Transport Association. Defines the 100 standard chapters that every aircraft-component code rolls up to.
  • A-check / C-check / D-check — increasing depths of scheduled base maintenance. See Visit Planning.
  • AD — Airworthiness Directive. Mandatory action issued by the regulator.
  • BER — Beyond Economic Repair. A component declared unfixable at the shop. Written off.
  • CDL — Configuration Deviation List. A variant of the MEL for structural items.
  • Certificate of Conformity — shop-issued tag stating the part meets its design spec.
  • Certificate of Maintenance / CRS — Release to Service. The legal release document for an aircraft. See CertificateOfMaintenance.
  • CMM — Component Maintenance Manual. The OEM document telling the shop how to repair a part.
  • Component — any serialised, part-numbered assembly installed on an aircraft. See ComponentID.
  • Core — in shop parlance, the main component a SWO is repairing. See SWOCore.
  • Deferral — time/usage-limited continuation of flight with an open defect. See DeferralRecord, MEL Deferral Rules.
  • Discrepancy / snag / squawk — a reported defect. See Discrepancy.
  • DGCA — India's civil aviation regulator.
  • EASA — European Union Aviation Safety Agency.
  • EO — Engineering Order. A mandated work instruction (covers ADs, SBs, internal mods).
  • FAA — US Federal Aviation Administration.
  • FC — Flight Cycle. One takeoff + landing.
  • FH — Flight Hour. Wheels-up to wheels-down elapsed time.
  • LLP — Life Limited Part. A part with a mandatory max service life. See VisitLLP.
  • Line Maintenance — gate-side, between-flights work. See AME Package Flow.
  • MEL — Minimum Equipment List. See MEL Deferral Rules.
  • MRO — Maintenance, Repair, and Overhaul. The industry. See Aviation MRO Overview.
  • NFF — No Fault Found. Component tested at shop, worked fine. Reinstall.
  • OEM — Original Equipment Manufacturer.
  • Release to Service — same as Certificate of Maintenance.
  • SB — Service Bulletin. OEM-issued advisory work (may be mandatory via an AD).
  • Serial number — globally unique per airframe or per component.
  • Shop Work Order / SWO — component repair order. See ShopWorkOrder, Shop Work Order Flow.
  • Snag — pilot's term for discrepancy.
  • Tail number — the registration number stencilled on the aircraft's tail.
  • Tech log — same as AME package.
  • Visit — a scheduled multi-day base maintenance event. See VisitPackage, Visit Planning.

Ramco-specific terms

  • OU — Organization Unit. Logical partition in the ERP. Appears as _OUINSTANCE on most tables. See OrganizationUnit.
  • TECHLOG_NO — AME package number. Looks like LC-000056-2020 or VP-000485-2014.
  • MAINT_REPORT_NO — discrepancy's parent report number. Looks like MREP-000140-2019.
  • swo_no — shop work order number. Looks like AWO-000121-2022, CWO-008726-2018, CSO000490-2019.
  • task_track_id — unique identifier for a task within a shop work order. Integer.
  • REG_NO — aircraft registration number. Variable format.
  • AWO / CWO / CSO — shop WO type prefixes: Annual Work Order / Component WO / Customer Service Order.
  • MIREP — Maintenance Report — discrepancy type.
  • QC-xx / FF-xx / ATTRI-xx — operator-specific discrepancy categories.
  • Baseline — locked-in plan version. A visit is "baselined" when planners commit.
  • Amendment — a post-baseline change to a visit plan.
  • Kit — a bundled set of parts for a task. See KitRefDetail.

Process prefixes in the data model

  • AC_* — Aircraft master + part/component master
  • BAS_* — Base/common master (tasks, work centers, facilities, etc.)
  • BAS_CM_* — Common masters (priority, document classification)
  • BAS_TSK_* — Task master family
  • BAS_WC_* — Work-center family
  • CFG_* — Configuration (MEL)
  • CM_* — Common master (stations, removal reasons, timezones)
  • Cu_* — Customer master
  • DP_* — Discrepancy + Deferral tables
  • FLOG_* — Flight log / AME package tables
  • SWO_* / swo_* — Shop Work Order tables (case varies across table names)
  • SA_* — Stock administration (warehouse master)
  • PRT_* — Part reference list
  • fl_* / flog_* — Additional flight-log / tech-log tables

See also