Airworthiness Directive · Amendment 39-14465 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
This AD applies to all EMBRAER Model ERJ 170-100 LR, -100 STD, -100 SE, and -100 SU airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 airplanes. This AD requires, when certain SmartProbes are installed, revising the Limitations section of the airplane flight manual to limit the maximum take-off weight of the airplane and increase the reference speed during certain landing conditions. This AD results from reports of variable calibration values of certain sensors of the SmartProbes, which could result in the transmission of erroneous information to the air data system. We are issuing this AD to prevent reduced controllability of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
As of 30 days after the effective date of this AD: During any time period when any SmartProbe part number 2015G2H2H-4, 2015G2H2H-4A, 2015G2H2H-5, or 2015G2H2H-5A is installed, before further flight, revise the Limitations section of the AFM to include the following operational limitations (this may be done by inserting a copy of this AD into the AFM):
“• Reduce the calculated MTOW by 110 kgf whenever it is defined by obstacle clearance on the final segment.
• Increase the reference speed (VREF) by 1 kt when landing with Flap 5.”
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
