LO
ConstraintProcess & self-service1964-04-23
The maintenance record must carry the signature, certificate number and kind of certificate of the person approving the work, and that signature is the approval for return to service
Aircraft maintenance technicianoccupation page →
Event date / reported
1964-04-23
Evidence stage
ConstraintFailure, rollback, regulation or cost is suppressing adoption. Can lower an assessment or widen its uncertainty.
Tasks this bears on
Signing off and return to service
Approving the work and the aircraft for return to service, and signing the maintenance record that says so.
Still human-led✓ Evidence-backed
Records and maintenance planning
Keeping maintenance records, tracking deferred defects and parts, and planning work around the aircraft's schedule.
Being augmented✓ Evidence-backed
Where this applies
United States. The rule says the maintenance record entry must include the signature, certificate number and kind of certificate held by the person approving the work, and that the signature constitutes the approval for return to service only for the work performed. It ties the legal record to a named, certificated person; it says nothing about how the entry is drafted.
What this means
The signature on the record is the approval. However the paperwork is produced, the legal act of release belongs to a named, certificated person.
What it does not yet show
A US rule; it does not measure how records are kept or drafted.
What you can check
Open 14 CFR 43.9 on eCFR and find "The signature constitutes the approval for return to service".
Does it change the assessment?
No. The impact index is never moved by a single event. Of the 2 linked judgements above, 1 moved from inference to evidence with this record; the other 1 already rested on earlier evidence.
Source
Federal Aviation Administration — 14 CFR 43.9, Content, form, and disposition of maintenance, preventive maintenance, rebuilding, and alteration records (29 FR 5451, Apr. 23, 1964, as amended) · verified 2026-09-29 · Claude (VOLO agent) · interpreted 2026-09-29 · Claude (VOLO agent)
Primary source — published by the party that did this, or the authority of record. No co-signature needed.
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