AD 2016-20-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Saab | AB | Airworthiness Directives; Saab AB, Saab Aeronautics (Formerly Known as Saab AB, Saab Aerosystems) Airplanes |
Unsafe Condition
Blind fasteners installed in EMS upper fittings (frame NS204.7 and upper longerons) do not meet the type design, which specifies Hi-Lok fasteners and two solid rivets (monel). This could cause crack development and vibration in the engine mount structure, leading to failure of the engine-mount-to-airplane structural connection and detachment of an engine from the airplane when both sides of a nacelle are affected.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the type of fasteners installed on the upper longerons and upper fittings of the engine mounting structure (EMS). Inspect for discrepancies of certain fasteners, including gaps between the fastener head and structure, traces of movement, and deformation of the structure. Take corrective action if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Saab AB, Saab Aeronautics Model SAAB 2000 airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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