Airworthiness Directive · Amendment 39-14963 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 and ERJ 190 Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 and ERJ 190 Airplanes
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 adopting a new airworthiness directive (AD) for all EMBRAER Model ERJ 170 and ERJ 190 airplanes. This AD requires repetitive detailed inspections for blockage of the pitot drain holes of certain air data smart probes (ADSPs), removing accumulated moisture from the pneumatic passages of the ADSPs, related investigative actions, and corrective actions if necessary. This AD results from reports of erroneous air speed indications caused by blockage of the pitot sensors due to freezing of accumulated moisture in the ADSP pneumatic passages. We are issuing this AD to prevent an erroneous air speed indication, which could reduce the flightcrew's ability to control 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.
Within 600 flight hours after the effective date of this AD, inspect to determine the part number of the ADSPs. For any Rosemount Aerospace ADSP having P/N 2015G2H2H-4(), 2015G2H2H-5(), 2015G2H2H-6(), or 2015G2H2H-7(), do the applicable actions required by this AD. For any ADSP having any other part number, no further action is required by this AD.
Note 1: The parentheses used in the identified ADSP model part numbers indicate the presence or absence of an additional letter(s), which varies with the basic ADSP model designation. The letter(s) defines minor changes that do not affect interchangeability or eligibility of the ADSP. Therefore, this AD still applies regardless of the presence or absence of these letters on the ADSP model designation.
Within 600 flight hours after the effective date of this AD, perform a detailed inspection for blockage of the pitot drain holes of the ADSP, remove accumulated moisture from the pneumatic passages of the ADSP, and, before further flight, do all related investigative actions and applicable corrective actions. Perform all required actions in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 170-34-0007, dated April 28, 2005 (for Model ERJ 170 airplanes); or EMBRAER Service Bulletin 190-34-0003, dated December 2, 2005 (for Model ERJ 190 airplanes); as applicable. Repeat all required actions thereafter at intervals not to exceed 600 flight hours.
Note 2: EMBRAER Service Bulletins 170-34-0007 and 190-34-0003 refer to Rosemount Aerospace Service Bulletin 2015G2H2H-34-04, Revision 1, dated April 6, 2005, as an additional source of service information for accomplishing the required actions.
Note 3: For the purposes of this AD, a detailed inspection is: “An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.”
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.
