Makila 1A1 / Makila 1A / Makila 1A2

AT A GLANCE

Revision 7 changes the MAKILA 1A2 takeoff gas-generator speed limit, revises exhaust-temperature identification and limits, increases the published permissible air-bleed flows, and changes the MAKILA 1A2 free-turbine maximum permanent power entry. It also updates a rotation-standard reference, maintenance-manual references and the approval authority identified for life limits. Previously inherited values are written explicitly, and the shorthand legend is removed. The engine ratings and certification bases on page 1 remain unchanged.

The heading changes from “TYPE CERTIFICATE (TC) RECORD” to “TYPE CERTIFICATE HOLDER RECORD.” The historical entry remains Turbomeca S.A., until July 18, 2016; the current holder and address are unchanged.

Note 1 reduces the MAKILA 1A2 takeoff (5 minutes) gas-generator limit from 33,270 to 33,220 rpm. For MAKILA 1A1, shorthand entries are replaced with the previously inherited values: gas-generator speeds of 34,000 rpm at 2-1/2 minute OEI, 33,200 rpm at 30-minute or continuous OEI, and 34,900 rpm for 20-second transient overspeed; power-turbine speeds of 23,764 rpm maximum stabilized, 26,735 rpm maximum transient (20 seconds), and 22,850 rpm at 100%. These explicit entries do not change those MAKILA 1A1 values. Page 1 removes the legend defining “- -” as “SAME AS PRECEDING MODEL,” alongside revision-table updates. Note 2 similarly writes out the inherited 735°C maximum-continuous value for MAKILA 1A1 and 750°C starting values for MAKILA 1A1 and MAKILA 1A2.

Note 2 changes the exhaust-gas temperature designation from T4 to T4.5 while retaining measurement with four thermocouples on the gas-generator exhaust diffuser. The MAKILA 1A 30-minute or continuous OEI limit increases from 775°C to 785°C. A previously absent 25-second transient row specifies 770°C for MAKILA 1A and MAKILA 1A1, with no value specified for MAKILA 1A2. The MAKILA 1A2 5- and 2-second transient entries lose their prefixed dash marks, but their stated temperatures and altitude footnotes remain unchanged.

Note 4 changes the maximum-continuous air-bleed entry from 0.035 lb/second to 0.35 lb/second (160 g/s). It also adds 0.39 lb/second (180 g/s) at take-off rating and continuous OEI rating. The stated conditions remain P2 air bleed from the centrifugal compressor plenum at standard-day sea level.

In Note 6, the MAKILA 1A2 free-turbine rotor maximum permanent power changes from 1292 / 1732 to 1617 / 2168 in the table's kw/shp units; its 22,962 rpm and CCW (1) entries remain unchanged. Footnote (1) changes the French rotation-standard reference from MF-L-85010 to NF L 85-010. The stated viewing direction—engine observed aft looking forward—does not change. These edits do not change the separate engine-rating table on page 1.

Note 8 changes “10-microm” to “10-micron.” The number 10 and the existing provision for a filter supplied by the aircraft manufacturer remain unchanged; this is a correction to the filter-unit wording, not a newly introduced filter provision.

Note 15 changes the identified source of engine-part life limits from the DGAC-approved Maintenance Manual, Chapter 5, to the EASA-approved Maintenance Manual, Chapter 5. Neither issue lists the individual limits here, so this change does not establish that any numerical life limit changed.

The maintenance-manual row in Note 16, “MANUALS REQUIRED BY far 33.5,” retains the existing references and adds X 298 76 460 2 for MAKILA 1A, X 298 E0 460 2 for MAKILA 1A1, and X 298 H2 400 1 for MAKILA 1A2. The MAKILA 1A1 added reference is printed with E0, whereas its retained reference uses EO. Other manual rows are unchanged.

Check the FAA source documents

Revision 6 · 01/11/2023
Open FAA DRS ↗ · Saved source PDF ↗

Revision 7 · 10/30/2026
Open FAA DRS ↗ · Saved source PDF ↗