Airworthiness Directive · Amendment 39-17724 · Turbomeca S.A. Turboshaft Engines
Turbomeca S.A. Turboshaft Engines
Superseded. A later AD replaced this one: AD 2015-10-07. Comply with the one in force.
This AD applies to all Turbomeca S.A. Arrius 2F turboshaft engines.
We are adopting a new airworthiness directive (AD) for all Turbomeca S.A. Arrius 2F turboshaft engines. This AD requires a one- time inspection of the ejector assembly nozzle of an affected lubricating device and, if a discrepancy is found, removal and replacement with a part eligible for installation. This AD was prompted by an in-flight shutdown (IFSD) of an Arriel 1 engine. We are issuing this AD to prevent failure of the ejector assembly nozzle, which could lead to an IFSD of the engine, damage to the engine, and damage to the helicopter.
(1) For engines equipped with a lubricating device having a serial number (S/N) listed in Figure 1 to paragraph (e) of this AD, within 30 days after the effective date of this AD, inspect the nozzle of the ejector assembly and the tightening torque. Use paragraph 6.B.(2)(b) 2 through 6.B.(2)(c) 4.2, excluding paragraph 6.B.(2)(b) 4, of Turbomeca Mandatory Service Bulletin (MSB) No. 319 79 4835, Version A, dated May 22, 2013, to do your 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.
| S/N's | ||
| 105M | 108M | 109M |
| 112B | 120 | 122B |
| 129M | 134B | 138B |
| 141M | 142B | 147M |
| 149B | 210M | 231 |
| 247 | 254 | 266M |
| 270 | 292M | 333M |
| 443M | 445M | 467M |
| 479M | 526M | 563M |
After the effective date of this AD, do not install onto any engine a nozzle ejector assembly subject to this AD, or install any engine onto any helicopter if the engine has an ejector assembly containing a lubricating device with an S/N listed in Figure 1 to paragraph (e) of this AD, unless the engine has been inspected per the requirements of paragraph (e) 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.
Engines
