Airworthiness Directive · Amendment 39-15148 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes and Model ERJ 190 Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes and Model ERJ 190 Airplanes
Superseded. A later AD replaced this one: AD 2010-14-14. Comply with the one in force.
This AD applies to all EMBRAER Model ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, -200 LR, -200 STD, and -200 SU airplanes; and Model ERJ 190-100 STD, -100 LR, and -100 IGW airplanes; certificated in any category.
The FAA is superseding an existing airworthiness directive (AD), which applies to all EMBRAER Model ERJ 170-100 LR, -100 STD, -100 SE, and -100 SU airplanes. That AD currently requires repetitively replacing the low-stage check valve and associated seals of the right- hand engine bleed system. This new AD adds new airplanes to that existing requirement. For all airplanes, this AD also requires repetitively replacing the low-stage check valve and associated seals of the left-hand engine bleed system with a new check valve and new seals. 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.
For Model ERJ 170-100 LR, -100 STD, -100 SE, and -100 SU airplanes: Within 100 flight hours after November 29, 2005 (the effective date of AD 2005-23-14), 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 RH 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; or paragraph 3.C. of the Accomplishment Instructions of EMBRAER Service Bulletin 170-36-0004, dated November 18, 2005. Repeat the replacement thereafter at intervals not to exceed 3,000 flight hours.
For Model ERJ 170-100 LR, -100 STD, -100 SE, and -100 SU airplanes: As of November 29, 2005, no engine may be installed in the RH 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.
(i) For Model ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, -200 LR, -200 STD, and -200 SU airplanes: Within 300 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 LH engine's engine bleed system with a new check valve and new seals, in accordance with paragraph 3.B. of the Accomplishment Instructions of EMBRAER Service Bulletin 170-36-0004, dated November 18, 2005. Repeat the replacement thereafter at intervals not to exceed 3,000 flight hours.
For Model ERJ 190-100 STD, -100 LR, and -100 IGW airplanes: Within 100 flight hours after the effective date of this AD or prior to the accumulation of 1,500 total flight hours, whichever occurs later, replace the low-stage check valve and associated seals of the RH engine's engine bleed system with a new check valve and new seals, in accordance with paragraph 3.C. of the Accomplishment Instructions of EMBRAER Service Bulletin 190-36-0004, dated October 18, 2006; or Revision 01, dated November 14, 2006. Repeat the replacement thereafter at intervals not to exceed 1,500 flight hours.
For Model ERJ 190-100 STD, -100 LR, and -100 IGW airplanes: Within 600 flight hours after the effective date of this AD or prior to the accumulation of 1,500 total flight hours, whichever occurs later, replace the low-stage check valve and associated seals of the LH engine's engine bleed system with a new check valve and new seals, in accordance with paragraph 3.B. of the Accomplishment Instructions of EMBRAER Service Bulletin 190-36-0004, dated October 18, 2006; or Revision 01, dated November 14, 2006. Repeat the replacement thereafter at intervals not to exceed 1,500 flight hours.
For Model ERJ 170-100 LR, -100 STD, -100 SE, -100 SU, -200 LR, -200 STD, and -200 SU airplanes: As of the effective date of this AD, no engine may be installed in the LH position unless the low-stage check valve has been replaced in accordance with the actions required by paragraph (i) of this AD.
For Model ERJ 190-100 STD, -100 LR, and -100 IGW airplanes: As of the effective date of this AD; no engine may be installed in the RH position unless the low-stage check valve has been replaced in accordance with the actions required by paragraph (j) of this AD; and no engine may be installed in the LH position unless the low-stage check valve has been replaced in accordance with the actions required by paragraph (k) of this AD.
Although EMBRAER Service Bulletin 170-36-0004, dated November 18, 2005; EMBRAER Service Bulletin 190-36-0004, dated October 18, 2006; and EMBRAER Service Bulletin 190-36-0004, Revision 01, dated November 14, 2006; specify to send removed check valves to the manufacturer, this AD does not include that requirement.
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.
