Airworthiness Directive · Amendment 39-16257 · Hydraulic power
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 and ERJ 190 Airplanes
This AD applies to Empresa Brasileira de Aeronautica S.A. (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, -100 IGW, -100 ECJ, -200 STD, -200 LR, and -200 IGW airplanes; certificated in any category; equipped with firewall hydraulic shutoff valves having part number (P/N) 975287-3 or P/N 975287-5.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, do the following actions.
(1) Within the next 600 flight hours after the effective date of this AD, perform an operational test for proper operation of the firewall hydraulic shutoff valves P/N 975287-3 or P/N 975287-5, as applicable, in accordance with the applicable service bulletin listed in Table 1 of this AD. If the valve fails the operational test, as described in the applicable service bulletin listed in Table 1 of this AD, before further flight, replace the faulty hydraulic shutoff valve with another one bearing P/N 975287-3 or P/N 975287-5. Repeat the test thereafter at intervals that do not exceed 600 flight hours.
Note 1: For the purpose of this AD, an operational test is: “A task to determine that an item is fulfilling its intended purpose. The test does not require quantitative tolerances. This is a failure finding task.”
| EMBRAER Service Bulletin— | Revision— | Dated— |
|---|---|---|
| 170-29-0013 | Original | December 13, 2006. |
| 170-29-0013 | 01 | July 24, 2007. |
| 190-29-0008 | Original | December 13, 2006. |
| 190-29-0008 | 01 | July 24, 2007. |
(2) Replacing a firewall hydraulic shutoff valve having P/N 975287-3 or P/N 975287-5 with a valve having P/N 975287-7, in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 190-29-0021 or 170-29-0024, both dated December 22, 2008, as applicable, terminates the requirements of paragraph (f)(1) of this AD for that valve.
Note 2: This AD differs from the MCAI and/or service information as follows: A final solution has been identified since the MCAI were issued and we are providing it as an optional terminating action in this AD. This difference has been coordinated with Agência Nacional de Aviação Civil (ANAC).
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.
