Embraer Jets Need Door Lock Lube Checks
Published Date: 3/26/2025
Proposed Rule
Summary
The FAA wants to keep Embraer EMB-545 and EMB-550 airplanes safe by fixing a door lock sensor that can jam. They’re proposing regular tests and lubrication of the sensor to prevent problems. Owners should act soon, as comments are due by May 12, 2025, and these fixes might cost some time and money but keep flights safe and smooth.
Analyzed Economic Effects
3 provisions identified: 1 benefits, 2 costs, 0 mixed.
Potential high-cost on-condition repairs
If the required tests find problems, you may need on-condition repairs such as adjusting or replacing the sensor or sensor support before further flight. The FAA estimates on-condition labor up to 7 work-hours × $85/hour = $595 plus parts up to $19,845.27, for a potential cost of up to $20,440.27 per airplane for those repairs.
Reduces risk of in‑flight door opening
If you fly on or work aboard Embraer EMB-545 or EMB-550 airplanes, the proposed AD requires actions to address a jamming failure of the main door lock sensor that can give a false "locked" indication. The FAA says these tests, lubrication, and on-condition fixes are intended to prevent a dormant sensor failure that could result in a door opening in flight.
Required recurring door-sensor maintenance
If you operate an Embraer EMB-545 or EMB-550 airplane, the FAA proposes required recurring main door sensor operational tests and lubrication. The tests must be done at intervals not to exceed 12 months and the lubrication at intervals not to exceed 24 months, with an estimated labor cost of up to 4 work-hours × $85/hour = $340 per airplane per action; the FAA estimates this AD would affect 296 U.S.-registered airplanes for an aggregate estimated cost of up to $100,640.
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Key Dates
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