Airworthiness Directive · Amendment 39-19361 · Electric
ATR-GIE Avions de Transport Régional Airplanes
This AD applies to the ATR—GIE Avions de Transport Régional airplanes identified in paragraphs (c)(1) and (c)(2) of this AD, certificated in any category.
(1) Model ATR42-500 airplanes, manufacturer serial numbers (MSNs) 1001 through 1014 inclusive, 1016 through 1019 inclusive, and 1201 through 1212 inclusive.
(2) Model ATR72-212A airplanes, MSNs 1048 through 1070 inclusive, 1072 through 1140 inclusive, 1142 through 1200 inclusive, 1220 through 1340 inclusive, 1342 through 1353 inclusive, 1355 through 1366 inclusive, 1368 through 1376 inclusive, 1378 through 1380 inclusive, 1382, 1385, and 1388.
We are superseding Airworthiness Directive (AD) 2017-24-01, which applied to certain ATR--GIE Avions de Transport R[eacute]gional Model ATR42-500 airplanes and Model ATR72-212A airplanes. AD 2017-24-01 required an inspection for routing attachments of electrical harness bundles and for wire damage, and corrective actions if necessary. This new AD adds additional airplanes to the applicability. This AD was prompted by a determination that additional airplanes are affected by the unsafe condition. We are issuing this AD to address the unsafe condition on these products.
(1) For the purposes of this AD, Group 1 airplanes are identified as the following: MSNs 1014, 1016 through 1019 inclusive, 1165 through 1212 inclusive, 1220 through 1340 inclusive, 1342 through 1353 inclusive, 1355 through 1366 inclusive, 1368 through 1376 inclusive, 1378 through 1380 inclusive, 1382, 1385 and 1388.
(2) For the purposes of this AD, Group 2 airplanes are identified as the following: MSNs 1001 through 1013 inclusive, 1048 through 1070 inclusive, 1072 to 1140 inclusive 1142 through 1164 inclusive.
This paragraph restates the requirements of paragraph (g) of AD 2017-24-01, with new service information and revised compliance language. For Group 1 airplanes: Within 6 months or 500 flight hours after December 11, 2017 (the effective date of AD 2017-24-01), whichever occurs first, do a detailed inspection for missing brackets and damage (including but not limited to chafing and electrical shorting) to wire bundles of the Route 1M and Route 2M electrical harness, in accordance with the flowchart in paragraph 1.C., “Description,” and the Accomplishment Instructions of ATR Service Bulletin ATR42-92-0033, Revision 02, dated April 12, 2018 (for Model ATR42-500 airplanes); or ATR Service Bulletin ATR72-92-1044, Revision 02, dated April 12, 2018 (for Model ATR72-212A airplanes); as applicable. Although ATR Service Bulletin ATR42-92-0033, Revision 02, dated April 12, 2018; and ATR Service Bulletin ATR72-92-1044, Revision 02, dated April 12, 2018; specify reporting, this AD does not include that requirement.
For Group 2 airplanes: Within 6 months or 500 flight hours after the effective date of this AD, whichever occurs first, do a detailed inspection for missing brackets and damage (including but not limited to chafing and electrical shorting) to wire bundles of the Route 1M and Route 2M electrical harness, in accordance with the flowchart in paragraph 1.C., “Description,” and the Accomplishment Instructions of ATR Service Bulletin ATR42-92-0033, Revision 02, dated April 12, 2018 (for Model ATR42-500 airplanes); or ATR Service Bulletin ATR72-92-1044, Revision 02, dated April 12, 2018 (for Model ATR72-212A airplanes); as applicable. Although ATR Service Bulletin ATR42-92-0033, Revision 02, dated April 12, 2018; and ATR Service Bulletin ATR72-92-1044, Revision 02, dated April 12, 2018; specify reporting, this AD does not include that requirement.
If the inspection required by paragraph (h) or (i) of this AD reveals that any bracket is missing or any wire is damaged, before further flight, do applicable corrective actions, in accordance with the flowchart in paragraph 1.C., “Description,” and the Accomplishment Instructions of ATR Service Bulletin ATR42-92-0033, Revision 02, dated April 12, 2018 (for Model ATR42-500 airplanes); or ATR Service Bulletin ATR72-92-1044, Revision 02, dated April 12, 2018 (for Model ATR72-212A airplanes); as applicable. Where ATR Service Bulletin ATR42-92-0033, Revision 02, dated April 12, 2018; and ATR Service Bulletin ATR72-92-1044, Revision 02, dated April 12, 2018; specify to contact ATR-GIE Avions de Transport Régional for appropriate action, before further flight, accomplish corrective actions in accordance with the procedures specified in paragraph (l)(2) of 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.
