How AeroTracs Works📋 What Are Service Difficulty Reports?
Airlines and repair stations are required by the FAA to report mechanical findings, part replacements, and structural inspections. These are called Service Difficulty Reports (SDRs).
More reports often means more thorough inspections — not a less safe aircraft. Airlines with rigorous programs file more SDRs. That's the system working as intended.
📊 Reporting Activity vs Fleet
Each aircraft is measured against similar aircraft in active service. The gauge shows reporting activity relative to its fleet peers.
Airlines with rigorous maintenance programs file more SDRs — it indicates thorough inspections and a positive safety culture.
🔧 Report Statuses
✅ Resolved — Issue was found and fixed (replaced, repaired, corrected)
🔶 Deferred — Approved to continue per maintenance program (CDL/MEL) — common and safe
⚠️ Precautionary — Extra safety measures taken (rare, indicates system working properly)
✈️ Data Sources
All data comes from the FAA Service Difficulty Reporting System (SDRS) and the FAA Aircraft Registry.
FAA Advisory Circular AC 20-109B:
"The number of Service Difficulty Reports (SDRs) submitted is not an indicator of the mechanical reliability or fitness of an aircraft fleet… it indicates participation and a positive safety culture."
AeroTracs is for informational purposes only. Not affiliated with the FAA or any airline. This information should not be used as the sole basis for safety or travel decisions.