Airworthiness Directive · Amendment 39-16278 · Turbomeca Makila 2A Turboshaft Engines
Turbomeca Makila 2A Turboshaft Engines
This AD applies to Turbomeca Makila 2A turboshaft engines with any of the following serial number (S/N) digital engine control units (DECUs) installed, if the DECU has not been returned to an approved repair center since January 1, 2010.
| S/N 93 | S/N 165 | S/N 193 | S/N 234 |
| S/N 115 | S/N 167 | S/N 201 | S/N 242 |
| S/N 138 | S/N 171 | S/N 215 | S/N 296 |
| S/N 149 | S/N 174 | S/N 216 | S/N 303 |
| S/N 151 | S/N 176 | S/N 218 | S/N 308 |
| S/N 156 | S/N 189 | S/N 231 | — |
These engines are installed on, but not limited to, Eurocopter France EC 225LP helicopters.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Unless already done, within 75 flight hours after the effective date of this AD, replace the S/N DECUs listed in applicability paragraph (c) of this AD:
(1) With a DECU having a S/N not listed in paragraph (c); or
(2) With a DECU having a S/N listed in paragraph (c), that has been returned to an approved repair center since January 1, 2010.
This AD differs from the Mandatory Continuing Airworthiness Information (MCAI) and/or service information as follows:
(1) EASA AD 2010-0068-E (corrected), dated April 13, 2010, requires, for helicopters having two affected DECUs, that one of the DECUs be replaced before the next flight, and the other DECU be replaced within 75 flight hours after the effective date of the AD.
(2) This AD requires all affected DECUs be replaced within 75 flight hours after the effective date of this AD.
(3) Although EASA AD 2010-0068-E (corrected), dated April 13, 2010, also applies to the Makila 2A1 engine, this AD does not apply to that model because it has no U.S. type certificate.
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.
