Airworthiness Directive · Amendment 39-18163 · Turbomeca S.A. Turboshaft Engines
Turbomeca S.A. Turboshaft Engines
This AD applies to all Turbomeca S.A. Arrius 2F turboshaft engines.
We are superseding airworthiness directive (AD) 2014-01-01 for all Turbomeca S.A. Arrius 2F turboshaft engines. AD 2014-01-01 required a one-time inspection of the ejector assembly nozzle of certain serial number (S/N) lubricating devices and, if a discrepancy was found, removal and replacement of the affected ejector assembly nozzle with a part eligible for installation. This AD requires the same action as AD 2014-01-01 and expands the list of affected S/N lubricating devices. This AD was prompted by the determination that additional lubricating devices, identifiable by S/N, may have an incorrect bonding of the nozzle on the ejector assembly. We are issuing this AD to prevent failure of the ejector assembly nozzle, which could lead to an in- flight shutdown (IFSD) of the engine, damage to the engine, and damage to the helicopter.
(1) For engines equipped with a lubricating device having an S/N listed in Figure 1 to paragraph (e) of this AD, within 30 days after the effective date of this AD, inspect the ejector assembly nozzle and the tightening torque. Use paragraphs 4.4.2.1 through 4.4.2.3.4.2 of Turbomeca Mandatory Service Bulletin (MSB) No. 319 79 4835, Version B, dated February 12, 2015, to do the inspection.
(2) For any part that fails the inspection required by paragraph (e)(1) of this AD, before further flight, remove and replace the failed part with a part eligible for installation.
| 100 | 140M | 185M | 247 | 436M |
| 105M | 141M | 190M | 255M | 443M |
| 106 | 142B | 191M | 266M | 445M |
| 107B | 146M | 195M | 278M | 451M |
| 109M | 147M | 198M | 292M | 467M |
| 112B | 156M | 202M | 304M | 477M |
| 112M | 159M | 204M | 330M | 479M |
| 114B | 164M | 207M | 334M | 483M |
| 124B | 178 | 210M | 369M | 484M |
| 125M | 178M | 213M | 384M | 512M |
| 129M | 180 | 218M | 391M | 526M |
| 135B | 180M | 222M | 392M | 563M |
| 135M | 181M | 244M | 417M |
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.
Engines
