AD 2006-04-02

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.

The term “service bulletin,” as used in this AD, means the Accomplishment Instructions of the service bulletins identified in Table 1 of this AD, as applicable:

Within 600 flight hours or 180 days after the effective date of this AD, whichever is first: Do a general visual inspection of pitot static heating relay K0057 for damage to the pin-type contacts, relay enclosure, and finishing material, and do the corrective action as applicable, by accomplishing all of the applicable actions specified in the applicable service bulletin; except as provided by paragraph (h) of this AD. The corrective actions must be done before further flight. Repeat the inspection thereafter at intervals not to exceed 500 flight hours, until the terminating modification required by paragraph (i) of this AD is accomplished.

Note 1: For the purposes of this AD, a general visual inspection is: “A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to ensure visual access to all surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or droplight and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.”

Although EMBRAER Service Bulletin 145-30-0042, dated April 18, 2005, and EMBRAER Service Bulletin 145LEG-30-0012, dated April 18, 2005, specify contacting the manufacturer if damage to components for the relay support is found and also specify returning any relay that fails an inspection to the airplane manufacturer, this AD does not include those requirements.

(i) Within 6,000 flight hours or 30 months after the effective date of this AD, whichever is first: Do the applicable actions specified in paragraphs (i)(1), (i)(2), and (i)(3) of this AD. Accomplishing all the applicable actions specified in this paragraph terminates the inspections required by paragraph (g) of this AD.

(1) For all airplanes, replace the direct-vision windowsill drain hoses having part number (P/N) 123-15435-401 and -403 with new, improved hoses having P/N 145-13044-001 and P/N 145-13047-001, as applicable, and replace the tiedown straps with new tiedown straps, in accordance with Figure 1 of the service bulletin.

(2) For all airplanes, rework the drain hose having P/N 123-15435-405, in accordance with Figure 1 of the service bulletin.

(3) For Model EMB-135BJ airplanes, reroute the drain hoses of the left and right cockpit horizontal linings, in accordance with Figure 2 of the service bulletin.