AD 2004-13-12

final rule
Data completeness: 80%

Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 Series Airplanes

AD Number
2004-13-12
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 2003-NM-105-AD
FR Citation
69 FR 40309

Applicability

TypeManufacturerModelDetails
aircraft Embraer EMB-120 Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-120 Series Airplanes

Unsafe Condition

Possible loss of airplane control and subsequent injury to the flight crew and passengers due to the propeller synchronizer switch not being 'OFF' after engine start and before takeoff and landing.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Revise the Limitations Section of the Airplane Flight Manual (AFM) to include the statement 'For takeoff and landing PROP SYNC must be OFF'. Insert pages 4-17, 4-23, and 4-27 of EMBRAER AFM 120/794, Revision 65, into the AFM.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 30 days from the effective date of the AD.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

All EMBRAER Model EMB-120 series airplanes, certificated in any category.

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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