The Aircraft Technical Logbook (Tech Log) is the primary, mandatory record used to document the technical status of an aircraft during operation. It provides a continuous record of aircraft utilization, maintenance actions, and airworthiness status, ensuring compliance with aviation regulations and supporting safe flight operations.
Key Functions
Operational Record
Records each flight’s details: date, departure and arrival points, flight/engine hours, cycles, fuel uplift, and crew signatures.
Airworthiness Control
Displays the current Certificate of Release to Service (CRS) for the aircraft.
Shows deferred defects and maintenance carried forward.
Defect Reporting
Pilots record any aircraft defect, malfunction, or abnormal event during operation.
Enables clear communication between flight crew and maintenance personnel.
Maintenance Record
Engineers/technicians record troubleshooting, corrective actions, and rectifications.
Any work carried out must be certified by an appropriately licensed engineer.
Regulatory Compliance
Required by ICAO Annex 6 and most national aviation authorities.
Must be retained and archived according to authority-approved procedures.
Deferred defect list: if not rectified immediately (MEL/CDL reference).
Fuel and Oil Records
Certificates and Authorizations (CRS, maintenance release)
Signatures (captain, licensed engineer, dispatcher as applicable)
Importance in Operations
Serves as the legal document for proving airworthiness before each flight.
Ensures a traceable history of all defects, rectifications, and deferrals.
Acts as the communication link between pilots, engineers, and operations control.
Supports safety audits, accident investigations, and maintenance planning.
👉 In short: The Aircraft Technical Logbook is the official, authoritative record that bridges flight operations and maintenance, ensuring the aircraft remains safe, serviceable, and compliant at all times.
หนังสือ A Pilot Books ในรูปแบบ eBook ที่ MebMarket
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional
Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
