Airworthiness Directive · Amendment 39-16323 · Turbomeca S.A. MAKILA 1A and 1A1 Turboshaft Engines
Turbomeca S.A. MAKILA 1A and 1A1 Turboshaft Engines
This AD applies to Turbomeca S.A. Makila 1A and 1A1 turboshaft engines with a comparator/selector (CS) board, part number (P/N) 0 177 99 716 0, and a serial number (S/N) between 241EL and 1192EL (inclusive) installed. These engines are installed on, but not limited to, Eurocopter AS 332 C, AS 332 C1, AS 332 L, and AS 332 L1 helicopters.
We are adopting a new airworthiness directive (AD) for the
Unless already done, do the following actions.
(1) Within 50 operating hours from the effective date of this AD, replace any CS board, P/N 0 177 99 716 0, with a S/N from 241EL to 1192EL (inclusive), that has fewer than 200 hours-since-new (HSN). Use paragraph 2 of Turbomeca S.A. Mandatory Service Bulletin (MSB) No. 298 73 0809 Version A, dated February 12, 2008, to replace the boards.
(2) During the next 500-hour inspection, replace any CS board, P/N 0 177 99 716 0, with a S/N from 241EL to 1192EL (inclusive), that has 200 HSN or more. Use paragraph 2 of Turbomeca S.A. MSB No. 298 73 0810 Version B, dated April 27, 2009, to replace the boards.
This AD differs from the Mandatory Continuing Airworthiness Information (MCAI) and/or service information as follows:
(1) This AD requires replacing within 50 operating hours after the effective date of this AD, all comparator/selector boards, P/N 0 177 99 716 0, with an S/N from 241EL to 1192EL (inclusive) that have fewer than 200 HSN.
(2) This AD requires replacing at the next 500-hour routine inspection after the effective date of this AD, all comparator/selector boards, P/N 0 177 99 716 0, with a S/N from 241EL to 1192EL (inclusive) that have 200 HSN or more.
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.
