ADIRS-1 hỏng
Primary ADIRS channel 1 failed; aircraft relying on remaining or standby navigation sources in accordance with MEL.
View termCategories
MEL and CDL MEL and CDL
Browse MEL and CDL MEL and CDL terms for pilots, air traffic controllers, cabin crew and aviation learners.
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ADIRU dự phòng
Independent backup ADIRU providing attitude, heading, and air-data when primary systems are degraded or failed.
View termbiện pháp khắc phục
The specific maintenance or operational step taken to resolve a defect, discrepancy, or deferred item as documented in the logbook or MEL.
View termbáo cáo lỗi hoãn sửa
A formal record noting a defect which has been deferred under MEL/CDL procedures, including details of rectification plan and interval.
View termBáo cáo sự cố khai thác
Official report filed to aviation authority documenting significant aircraft/system in-service malfunction, defect, or repeated failure.
View termBáo cáo sự cố tổ lái
Written logbook entry by flight crew describing observed technical defect or malfunction requiring maintenance action.
View termBản tin bảo dưỡng đang chờ
Manufacturer’s recommended modification or inspection not yet incorporated; outstanding action listed in maintenance records.
View termbảng cảnh báo
An official sign or label installed in the cockpit or cabin to indicate equipment limitations, status, or required procedures per MEL or CDL.
View termBộ điều khiển áp suất cabin số 1 hỏng
Primary automatic pressurization channel failed; crew managing cabin differential in manual mode per QRH procedures.
View termBộ Đảo Lực Đẩy Không Hoạt Động
The thrust reverser mechanism cannot be deployed, requiring alternative braking methods and possibly affecting landing performance.
View termChuyến bay kiểm tra bảo dưỡng
Post-maintenance air test conducted to verify aircraft performance and systems before return to commercial service.
View termchuyến bay liên tục
A sequence of successive flights where certain MEL/CDL items may remain deferred or require repeated checks as specified.
View termChỉ thị chiến dịch đội bay
Mandatory maintenance or modification order issued by the operator or manufacturer, applicable to an entire fleet.
View termChỉ thị đủ điều kiện bay đã ghi nhận
Mandatory compliance record entered in technical log documenting completion of authority-issued safety directive.
View termChứng nhận đưa vào khai thác
Formal written declaration by licensed engineer that aircraft or component is airworthy and fit for return to operation.
View termCánh Lật Không Kích Hoạt
A system status where one or more spoiler panels are intentionally or automatically rendered inoperative for the flight.
View termCông tắc hoãn xử lý
Cockpit switch or placard indicating an MEL-approved deferred maintenance item that must not be activated in flight.
View termCất cánh Bleed-Off
A take-off performed with engine bleed air turned off to optimize thrust, typically when performance-limited.
View termCần kiểm tra chức năng
Indicates requirement for an operational or systems test to confirm correct function of a repaired or replaced item.
View termCần kiểm tra sự cố
Further diagnostic action needed to isolate cause of technical fault or failure not resolved by initial inspection.
View termCần thủ tục thay thế
Standard operating sequence unavailable; crew must follow officially published alternate or contingency checklist.
View termCụm điều hòa không hoạt động
Indicates a failure of an air-conditioning pack, possibly affecting cabin pressurization and requiring MEL compliance before dispatch.
View termdanh sách sai lệch cấu hình
An official document specifying permissible aircraft configuration deviations that do not affect safe flight, used for dispatch with non-standard configurations.
View termDanh sách Trang bị Tối thiểu
An approved document listing the minimum equipment required for safe operation of an aircraft, permitting specified inoperative items under controlled conditions.
View termDanh sách Trang bị Tối thiểu của Hãng
The MEL approved by the state of the operator, tailored to specific airline operations, listing minimum equipment required for dispatch.
View termDanh sách Trang bị Tối thiểu ETOPS
The Minimum Equipment List applicable to extended-range (ETOPS) flights, specifying the minimum required equipment for oceanic and remote area operations.
View termDispatch với thiết bị phụ trợ APU
Authorization for a flight to dispatch with the Auxiliary Power Unit (APU) operating or required, usually due to ground power limitations or MEL stipulations.
View termGhi Chép Công Việc Phi Thường
A maintenance log entry documenting unscheduled or unexpected technical issues or discrepancies detected during aircraft operations, requiring attention beyond regular or planned maintenance.
View termGhi chú tác động khai thác
Written record in technical log noting operational effects or limitations resulting from an aircraft defect, MEL, or deferred item.
View termGhế tổ lái hỏng
Flight-deck seat fails to lock, adjust, or retract, potentially compromising crew safety and requiring MEL evaluation.
View termGia hạn khoảng sửa chữa
Formal approval to extend the allowable period for repair of a deferred defect beyond original MEL interval.
View termGiám sát tình trạng
Ongoing process of assessing system or component health through data and trend analysis to guide maintenance decisions.
View termGiấy phép bay ferry
Authority granted to reposition an aircraft without revenue passengers, often under MEL limitations, to maintenance or delivery point.
View termGiới hạn dispatch
Restrictive condition under which an aircraft may be dispatched due to system defect or MEL, affecting allowable operation.
View termHoàn thành thẻ nhiệm vụ
Documented evidence that all steps of an assigned maintenance task card have been performed and signed off.
View termhoãn sửa chữa
A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.
View termHình phạt hiệu suất
A reduction in aircraft performance, such as climb, takeoff, or landing, resulting from inoperative systems or configuration deviations.
View termHình phạt trọng lượng
An increase in operational weight or a reduction in allowable weight imposed due to specific inoperative equipment or configuration deviations.
View termhạng mục A
A Minimum Equipment List category requiring rectification of an inoperative item within a time period specified in the MEL, usually before next flight.
View termhạng mục B
A Minimum Equipment List category requiring rectification of an inoperative item within three consecutive calendar days, excluding the day of discovery.
View termhạng mục C
A Minimum Equipment List category requiring rectification of an inoperative item within ten consecutive calendar days, excluding the day of discovery.
View termhạng mục D
A Minimum Equipment List category requiring rectification of an inoperative item within 120 consecutive calendar days, excluding the day of discovery.
View termhạng mục không cho phép bay
An inoperative or missing item which, according to MEL or regulatory requirements, prevents the aircraft from being legally dispatched.
View termhạng mục lặp lại
A recurring defect or observation required to be checked, recorded, or repeated at intervals specified in the MEL or logbook.
View termHệ thống chống trượt không hoạt động
A condition where the antiskid braking system is not operational, requiring alternate braking procedures and possible performance penalties.
View termHệ thống interphone hỏng
Internal crew communication system not functioning, affecting cockpit-cabin coordination and triggering MEL action.
View termHỏng Bộ Phát Đáp
The aircraft’s transponder is not transmitting, impacting radar identification and requiring ATC notification and alternate procedures.
View termHỏng van chống băng
Malfunction of wing or engine anti-ice valve preventing hot-air flow, compromising ice protection and requiring flight profile adjustment.
View termkhoảng thời gian sửa chữa
The maximum period permitted by the MEL for rectifying an inoperative item before mandatory maintenance is required.
View termKhởi động động cơ trên không
The procedure of starting an engine during flight, often due to engine flameout or following maintenance.
View termKiểm tra ngoài chu kỳ
Maintenance inspection not aligned with normal cycle, scheduled according to special interval or condition.
View termLinh kiện đang chờ cung ứng
Maintenance action deferred because required replacement part is not yet available in inventory or supply chain.
View termLệnh kỹ thuật đã áp dụng
Formal modification or repair directive implemented and documented by engineering, referenced in aircraft technical records.
View termLỗi Được Ghi Vào Nhật Ký Khoang Hành Khách
A discrepancy, malfunction, or abnormality reported by crew and recorded in the aircraft cabin log for maintenance attention, typically affecting passenger or crew services and requiring rectification before or after flight.
View termMáy phát phụ không hoạt động
Aircraft auxiliary power unit (APU) generator not providing electrical power, requiring external source for ground operations and start.
View termMòn Phanh
The condition in which the aircraft’s brake components have undergone material loss due to repeated use, requiring monitoring and possible replacement if limits are exceeded.
View termMục Danh sách Sai lệch Cấu hình
An entry in the Configuration Deviation List authorizing dispatch with specific external or configuration deviations, within specified limitations.
View termMục Danh sách Sai lệch Cấu hình
An authorized deviation from aircraft configuration detailed in the Configuration Deviation List, permitting dispatch with specific missing or inoperative external parts.
View termmục ghi sổ nhật ký
A formal record in the aircraft technical log documenting the status, action, or deferral of an MEL/CDL item for legal and maintenance tracking.
View termNắp pitot còn gắn
Protective pitot-tube cover still fitted, blocking dynamic-pressure input and rendering airspeed indications unreliable.
View termPhao trượt thoát hiểm không hoạt động
Inflatable escape slide at an aircraft door unserviceable, precluding passenger carriage until rectified or deferred per MEL.
View termPhiếu Kỹ Thuật Giao Nhiệm Vụ
A formal document or electronic record certifying an aircraft’s airworthiness and readiness for flight after maintenance actions or inspections, required to be completed and signed by authorized personnel before each departure.
View termRadio VHF 1 Không Hoạt Động
Primary VHF radio channel 1 is not functional, requiring use of alternate radio or backup for ATC communications.
View termSai lệch Cấu hình
A formally approved variation from the aircraft’s standard configuration as specified in the Configuration Deviation List (CDL), which may permit flight with certain external parts missing or inoperative.
View termsai lệch phái lệnh
An authorized variation from standard aircraft configuration or equipment status, documented for legal dispatch of a flight.
View termSắp đến hạn kiểm tra
Notification that a scheduled inspection interval will be reached within a short time frame, requiring planning.
View termsố kiểm soát
A unique identifier assigned to a deferred defect, MEL/CDL item, or maintenance entry for tracking and compliance.
View termSố Lượng Thủy Lực Thấp
Indicates that the fluid level in a hydraulic reservoir is below the specified minimum for safe system operation.
View termSửa Đổi Quy Trình Tạm Thời
A temporary update to operational or maintenance procedures, issued before the next official revision, to address urgent safety, regulatory, or operational requirements. Used in documentation and flight operations until formal revision is published.
View termTham chiếu chương ATA
Standardized reference number identifying aircraft system/component according to the ATA 100/2200 maintenance coding system.
View termTham chiếu thẻ công việc
Unique identifier of a maintenance work card specifying approved procedures for inspection, repair, or modification.
View termThay thế linh kiện định kỳ
Pre-planned replacement of a part or system component at a specified interval or due time according to maintenance schedule.
View termThay thế linh kiện định kỳ
Pre-planned replacement of an aircraft component at specific intervals in accordance with the maintenance schedule.
View termthiết bị tối thiểu
The essential items that must be serviceable for an aircraft to be dispatched under the MEL; if not available, flight is not permitted.
View termthiết bị và vật dụng không cần thiết
Equipment or furnishings that are not essential for the airworthiness or safety of the flight and may be deferred.
View termThiếu static wick
Static electricity discharge wick absent from wing or control surface, potentially increasing radio interference until replaced.
View termThiếu thiết bị thở bảo vệ
Required PBE smoke-hood absent from crew station or galley, violating safety regulations until replaced.
View termThiếu áo phao
Required passenger flotation device absent from its assigned seat location, rendering that position unserviceable until replaced in accordance with the MEL.
View termthủ tục bảo trì
A required action by maintenance personnel to address an MEL/CDL item, often prerequisite for dispatch or rectification.
View termthủ tục khai thác
A mandatory action or set of actions required by flight crew to safely operate an aircraft system, especially with an MEL/CDL item.
View termTiêu hao đã bổ sung
A maintenance log entry confirming replenishment of expendable items such as oil, hydraulic fluid, or oxygen.
View termTrang thiết bị và nội thất không thiết yếu
Equipment and furnishings that are not required for safe operation or regulatory compliance and may be inoperative without affecting dispatch eligibility.
View termTrung tâm kiểm soát bảo dưỡng
Centralized department overseeing aircraft technical status, defect clearance, and authorizing maintenance actions and MEL deferrals.
View termĐộ lệch la bàn
Error between magnetic compass indication and actual magnetic heading exceeding permissible limits; requires calibration swing.
View term