Mechanics and service providers can be sued for negligence if their work falls below the standard of care expected of a prudent aviation professional, even if they followed FAA rules. Claims typically arise from improper repairs, incomplete inspections, wrong parts, poor documentation or returning an aircraft to service when it was not airworthy.
Who can be sued
Independent mechanics, repair stations, maintenance contractors, airlines with in-house teams and even aircraft owners who supervise the work can face claims. The aircraft owner often shares responsibility because they select the mechanic and have a duty to ensure the aircraft remains airworthy after maintenance. If the mechanic works for a company, the employer may also be liable under respondeat superior or negligent hiring/supervision theories.
What counts as negligence
Negligence requires showing the mechanic failed to use the care a reasonable professional would have used under the circumstances. Common examples include:
- Missing defects during inspections that should have been obvious
- Installing the wrong or defective parts
- Failing to follow manufacturer instructions, service bulletins or airworthiness directives
- Improperly documenting work or falsifying records
- Releasing an aircraft with known safety issues
- Not using proper tools or techniques
Evidence that matters
Maintenance logs, work orders, discrepancy reports, parts records and inspection entries often decide the case. Expert testimony compares the mechanic’s work against industry standards and NTSB findings can support the negligence claim, though they are not conclusive. FAA enforcement records against the mechanic or company can also show a pattern of problems.
Legal defenses
Mechanics often argue that FAA compliance proves they met the standard of care, but courts usually say regulations set a minimum, not the full duty to clients. Other defenses include contributory negligence (pilot ignored warnings or flew improperly), unforeseeable defects or owner responsibility for scheduling maintenance. In some cases, the mechanic may also claim the owner pressured them to rush the work.
Practical effects
If negligence is proven, mechanics and service providers can face personal injury, wrongful death and property damage claims with no cap on damages. Most carry professional liability insurance, but coverage limits vary and personal assets may be at risk if the policy is inadequate. Criminal charges are possible if the lapse was willful or caused a fatality.