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Atlas · MMEL

Master Minimum Equipment Lists.

The MMEL is the FAA-approved ceiling of equipment that can ever be deferred on an aircraft type. Each operator's authorized MEL is a subset of this. Pilots and mechanics: check the MMEL revision before any pre-flight discrepancy decision.

Reference index — your authorized operator-specific MEL is the binding document.

Airbus · 4

Airbus Helicopters · 2

Beechcraft · 2

Bell · 2

Boeing · 6

Bombardier · 5

Cessna · 6

Cirrus · 1

Daher · 1

Dassault · 2

Embraer · 4

Gulfstream · 3

Leonardo · 1

Pilatus · 1

Sikorsky · 1

Method

Curated cross-reference. FAA publishes MMELs through the Document Retrieval System (DRS) ↗ — the source-of-truth for current revision. Piston GA aircraft typically fall under the Generic Aviation MMEL (AC 91-67) when operated Part 91 / 91K.

For TallyAero GA-SMS users: the MMEL is an input to the SRM aircraft-equipment risk module — the system pre-categorizes defect severity at the gate based on what's deferrable per the MMEL, records the deferral decision in the audit trail, and flags compounding deferrals that may exceed an operator's authorized envelope.