Airworthiness Directive · Amendment 39-13929 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and EMB-145 Series Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and EMB-145 Series Airplanes
This AD applies to Model EMB-135 and EMB-145 series airplanes having serial numbers (S/N) 145003 through 145373 inclusive, 145375, 145377 through 145391 inclusive, and 145393 through 145408 inclusive; certificated in any category; equipped with nose landing gear struts, part number (P/N) 1170C0000-01 (including all modifications), P/N 1170C0000-02, or P/N 1170C0000-03.
The FAA is superseding an existing airworthiness directive (AD), which applies to certain EMBRAER Model EMB-135 and EMB-145 series airplanes. That AD currently requires replacing the nose landing gear wheel nuts and associated inner and outer seals, and reidentifying the landing gear strut. This new AD adds an airplane to the applicability and revises a part number for a replacement part. This AD is prompted by a report of an invalid part number for the new nose landing gear wheel nut. We are issuing this AD to prevent separation of the wheels from the nose landing gear due to the failure of the outer wheel bearings, and consequent loss of control of the airplane during takeoff and landing.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
At the applicable time specified in paragraph (f)(1) or (f)(2) of this AD, replace the nose landing gear wheel nuts, P/N 1170-0007, with new wheel nuts, P/N 1170-0082; replace the associated inner and outer seals, P/N 68-1157 or P/N 72-290, with new seals, P/N 68-1498; and reidentify the struts. Do the actions in accordance with the Accomplishment Instructions of EMBRAER Service Bulletin 145-32-0068, Change 04, dated January 20, 2003; or EMBRAER Service Bulletin 145LEG-32-0006, Change 01, dated January 20, 2003; as applicable.
(1) For Model EMB-135 and EMB-145 series airplanes having S/N 145003 through 145373 inclusive, 145377 through 145391 inclusive, and 145393 through 145408 inclusive: Within 12 months after June 9, 2004 (the effective date of AD 2004-09-15).
(2) For Model EMB-145 series airplane having S/N 145375: Within 12 months after the effective date of this AD.
(g) Actions accomplished before the effective date of this AD per the EMBRAER Service Bulletins listed in Table 1 of this AD are considered acceptable for compliance with the corresponding actions specified in this AD:
| EMBRAER service bulletin | Change level | Date |
|---|---|---|
| 145-32-0068 | Original | May 4, 2001. |
| 145-32-0068 | 01 | Jan. 14, 2002. |
| 145-32-0068 | 02 | Apr. 16, 2002. |
| 145-32-0068 | 03 | Nov. 25, 2002. |
| 145LEG-32-0006 | Original | Nov. 26, 2002. |
As of the effective date of this AD, no person may install nose landing gear wheel nuts, P/N 1170-0007, or the associated inner and outer seals, P/N 68-1157 or P/N 72-290, on any airplane.
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.
Aircraft
