AD 86-21-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120 | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. Model EMB-120 Series Airplanes |
| aircraft | Embraer - Empresa Brasileira de Aeronautica S.A. | EMB-120RT | Airworthiness Directives; EMPRESA BRASILEIRA DE AERONAUTICA S.A. Model EMB-120 Series Airplanes |
Unsafe Condition
Oil loss and in-flight engine shutdown due to engine oil coolers (part numbers 160282-1 or 160282-2) that have accumulated more than 200 hours time-in-service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Fabricate and install a placard near the altimeter stating 'MAXIMUM OPERATING LIMITATION 10,000 FEET MSL'. Install engine oil cooler part number 160282-3 or subsequent to terminate AD requirements.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 10 hours time-in-service after the effective date of this AD, unless previously accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Embraer Model EMB-120 series airplanes; serial numbers 12004, 12006 through 120028, 120033, and 120034; equipped with engine oil coolers part numbers 160282-1 or 160282-2
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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