Definition
Written, signed, and dated statements made by an authorized flight instructor in a student's logbook (or on a separate document) certifying that the student has received specific training, demonstrated required proficiency, or is authorized to perform a particular operation such as solo flight, a knowledge test, or a practical test.
Plain English
Short signed notes an instructor writes in your logbook to confirm you have been properly trained and are cleared to do something specific, like fly solo or take a checkride.
Context Anchor
Seen in training syllabi, logbooks, student records, and FAA applications when a student is preparing for solo flight, a knowledge test, or a practical test.
Derivation
From the Latin 'in-' (on) and 'dorsum' (back) — literally 'to write on the back of.' Originally referred to signing the back of a document to approve it. In aviation, the instructor's signature serves the same purpose: an official approval attached to the trainee's record.
Why Pilots Care
Endorsements are required by regulation to perform solo flights, certain maneuvers, or take knowledge and practical tests; missing one prevents legal progression.
Intuition Check
Do not read endorsements as casual recommendations or praise. In FAA training, endorsements are specific written instructor approvals or certifications that carry legal and training significance.
Example Sentence 1
Before her first solo, the instructor reviewed her progress and added the required solo endorsement to her logbook.
Example Sentence 2
Before scheduling the checkride the student obtained the required endorsement confirming readiness for the practical test.