AD 91-25-11

final rule
Data completeness: 70%

Airworthiness Directives; EMBRAER (EMPRESA BRASILEIRA de AERONAUTICA, S.A.)Model EMB-110 Series Airplanes

AD Number
91-25-11
Status
final_rule
Effective Date
Product Category
aircraft
Docket
91-CE-92-AD
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Embraer S.A. EMB-110P1 Airworthiness Directives; EMBRAER (EMPRESA BRASILEIRA de AERONAUTICA, S.A.)Model EMB-110 Series Airplanes
aircraft Embraer S.A. EMB-110P2 Airworthiness Directives; EMBRAER (EMPRESA BRASILEIRA de AERONAUTICA, S.A.)Model EMB-110 Series Airplanes

Unsafe Condition

Incorrect installation of the rudder trim tab system can cause severe vibration, flutter, and loss of control of the airplane.

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

Required Actions

Visually inspect the rudder trim tab system for correct assembly per EMBRAER SB No. 110-27-0091. If incorrectly installed, reinstall the system per the same SB. Use special flight permits under FAR 21.197/21.199 to operate to a location where AD requirements can be met.

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 receipt of this AD

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

Affected Aircraft

EMBRAER EMB-110 Series airplanes (all serial numbers), 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 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.