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Aircraft Parts, Manufacturing, PMA

Mike Rennick Talks PMA Reliability at Delta Air Lines

Those who attended MARPA’s inaugural European conference last month in Istanbul were treated to an excellent presentation by Delta Air Lines Manager of Component Engineering and MARPA Air Carrier Committee Chairman Mike Rennick on the impressive reliability benefits of PMA parts in Delta’s fleet.

As many know, Delta operates a very diverse fleet of aircraft, which are on average older aircraft than many other carriers’ fleets.  Yet Delta also operates one of the most reliable mainline fleets in the world.  In 2014, Delta had an impressive 169 maintenance cancellation free days; a metric that has improved each of the last three years.  Mr. Rennick pointed out that one of the important contributing factors to this success was the widespread use of PMA parts.

MARPA and its members frequently tout the many benefits PMA provide to operators.  Operators are generally aware of the lower prices offered by PMA parts.  They are also aware that PMA parts may be their only option, or one of very few options, for replacement parts for legacy aircraft. However, operators may not be aware of the significant reliability benefits that PMA parts also provide.

Mr. Rennick explained that in order to maintain its fleet to the level it requires Delta wants options.  Service experience has demonstrated that PMA parts match, and in some cases exceed, the performance of OEM parts.  Based on this experience Delta has found PMA parts to be acceptable for use throughout the aircraft, components, and engines.

Mr. Rennick’s presentation included exciting metrics showing an upward trend in Mean Time Between Unscheduled Removals (MTBUR) and Mean Time Between Failures (MTBF) on certain applications in which Delta had utilized a PMA solution.  Metrics like these indicate the great value proposition that PMA’s can offer air carriers; not only from a purchase price standpoint, but importantly, from a reliability standpoint.  These metrics, along with shortened lead times, are part of the greater holistic value proposition offered by PMA parts and something we should remember to emphasize when talking to potential customers.

Mr. Rennick also stated that because of Delta’s close cooperation with its vendors it is able to address issues more quickly than might otherwise be possible.

Delta’s comfort level born of experience with PMA parts has led to the carrier using PMAs in even very critical applications, including engine gas path and rotating parts, life limited parts, and power generation.

The emphasis on the reliability of PMA parts is one that we, as an industry, should be sure to promote to our customers.  Cost savings means more than just lower prices (an obvious benefit of PMA!)  Keeping aircraft safely and reliably operating without unscheduled removals and increasing time between failures generates cost savings for operators by allowing them to get planes turned quickly and keeping their passengers happy.  MARPA always makes it a point to emphasize the reliability benefits of PMA wherever we go.

If you were unable to join us in Istanbul you will still have a chance to see this great presentation on the reliability benefits of PMA parts.  We anticipate Mr. Rennick giving a similar presentation at the 2015 MARPA Annual Conference.  This will be a great opportunity for PMA manufacturers to hear directly from Delta on the air carrier’s take on PMA parts, and an excellent opportunity for operators to see how one carrier is making PMA parts an important element of their maintenance program success. Register today to take advantage of Early Bird rates!

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