Airworthiness Directive · Amendment 39-14267 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-110P1 and EMB-110P2 Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-110P1 and EMB-110P2 Airplanes
This AD applies to all EMBRAER Model EMB-110P1 and EMB-110P2 airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all EMBRAER Model EMB-110P1 and EMB-110P2 airplanes. This AD requires repetitive inspections for corrosion or cracking of the rotating cylinder assembly in the nose landing gear (NLG), and related investigative/corrective actions if necessary. This AD also requires the eventual replacement of the rotating cylinder assembly with a new part, which terminates the need for the repetitive inspections. This AD results from reports of corrosion on the NLG rotating cylinder assembly. We are issuing this AD to prevent cracks from emanating from corrosion pits in the NLG rotating cylinder assembly, which could result in failure of the NLG.
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 EMBRAER Service Bulletin 110-32-0088, Revision 03, dated February 11, 2004.
Within 150 flight hours or 4 months after the effective date of this AD, whichever is first: Perform the evaluation inspection for corrosion or cracking of the NLG rotating cylinder assembly, by doing all the actions in accordance with Part II, paragraph 2.3.1.1., “Evaluation Inspection,” of the service bulletin. Depending on the results of the inspections, perform the applicable action specified in paragraph (g)(1), (g)(2), (g)(3), or (g)(4) of this AD.
(1) If no corrosion or cracking is found: Perform the bench detailed inspection of the rotating cylinder assembly required by paragraph (h) of this AD at the time specified in paragraph (h) of this AD.
(2) If only light corrosion is found: Repeat the inspection required by paragraph (g) of this AD thereafter at intervals not to exceed 150 flight hours or 4 months, whichever occurs first, until the requirements specified in paragraph (h) or (i) of this AD are accomplished.
(3) If severe corrosion is found: Before further flight, perform the bench detailed inspection of the rotating cylinder assembly required by paragraph (h) of this AD for evidence of further corrosion or cracking.
Note 1: The criteria for determining light or severe corrosion are included in EMBRAER Service Bulletin 110-32-0088, Revision 03, dated February 11, 2004. The presence of oxidation is not considered to be corrosion.
(4) If any cracking is found, before further flight: Replace the rotating cylinder assembly with a new part, in accordance with Part II of the service bulletin. Replacing the rotating cylinder assembly terminates the requirements of paragraphs (h) and (i) of this AD.
Within 600 flight hours or 12 months after the effective date of this AD, whichever occurs first: Perform the bench detailed inspection for corrosion or cracking of the NLG rotating cylinder assembly in accordance with Part II of the service bulletin.
(1) If no corrosion or cracking is found during any inspection, before further flight: Perform all of the actions specified in Part II, paragraph 2.3.1.3., “Protection Procedure,” of the service bulletin.
(2) If only light corrosion is found during any inspection, before further flight: Perform all of the actions specified in Part II, paragraph 2.3.1.3., “Protection Procedure,” of the service bulletin. Thereafter, repeat the inspection required by paragraph (g) of this AD at intervals not to exceed 600 flight hours or 9 months, whichever occurs first, until accomplishing paragraph (i) of this AD.
(3) If any cracking or severe corrosion is found during any inspection, before further flight: Replace the rotating cylinder assembly with a new part in accordance with Part II of the service bulletin. Replacing the rotating cylinder assembly terminates the inspections required by paragraphs (g)(2) and (h)(2) of this AD.
(i) If any NLG rotating cylinder assembly is found to have light corrosion during any inspection required by paragraph (g)(2) or (h)(2) of this AD, as applicable: Within 3,000 flight hours or 36 months after the effective date of this AD, whichever occurs first, replace the NLG rotating cylinder assembly with a new part, in accordance with Part II of the service bulletin. Replacing the rotating cylinder assembly terminates the inspections required by paragraphs (g)(2) and (h)(2) of this AD.
Actions accomplished before the effective date of this AD in accordance with EMBRAER Service Bulletin 110-32-0088, Revision 01, dated September 1, 2003; or EMBRAER Service Bulletin 110-32-0088, Revision 02, dated October 30, 2003; are acceptable for compliance with the corresponding requirements of this AD.
Where the service bulletin states to report inspection results to EMBRAER, that action is not required by this AD.
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
