Airworthiness Directive · Amendment 39-14372 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes
Superseded. A later AD replaced this one: AD 2007-16-09. Comply with the one in force.
This AD applies to all EMBRAER Model ERJ 170-100LR, -100 STD, -100SE, 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 repetitively replacing the low-stage check valve and associated seals of the right-hand engine bleed system. This AD results from a report that an engine shut down during flight due to the failure of the low-stage check valve to close. We are issuing this AD to prevent failure of the low-stage check valve, which could result in an engine shutting down during flight.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 100 flight hours after the effective date of this AD or prior to the accumulation of 3,000 total flight hours, whichever occurs later, replace the low-stage check valve and associated seals of the right-hand engine's engine bleed system with a new check valve and new seals in accordance with the Accomplishment Instructions of EMBRAER Alert Service Bulletin 170-36-A004, dated September 28, 2005. Repeat the replacement thereafter at intervals not to exceed 3,000 flight hours.
As of the effective date of this AD, no engine may be installed in the right-hand position unless the low-stage check valve has been replaced in accordance with the actions required by paragraph (f) of this AD.
Although EMBRAER Alert Service Bulletin 170-36-A004, dated September 28, 2005, specifies to send removed check valves to the manufacturer, this AD does not include that requirement.
