Delta TechOps Delta TechOps uses Lean and the theory of constraints (TOC) as tools. In 1995 it introduced CI teams to look for ways to lean out processes and reduce expenses. TechOps’ “burning platform” experience— when Delta Air Lines’ filed for bankruptcy in 2005—sped up efforts, and TechOps helped pull its parent out of danger. In fiscal year 2010, moreover, TechOps cut engine maintenance costs by $60 million, much of which is attributable to Lean and TOC, says David Garrison, managing director for engine and component maintenance. Delta’s Pratt &Whitney 2000-series engine shops are an example of what Lean and related tools can accomplish, despite the complexity of the equipment and interdependencies between shops. Laid out by the mechanics, this line repairs or overhauls 160 engines a year, including outside work. That’s up from an historical average of 100-120 engines a year. TAT for the Delta’s 2000-series engines has gone from 55-60 days historically to 30 days now, Garrison says.
The experience has involved some “ah- ha moments,” he says. For example, local efficiency at one of 25 shops turned out to be hurting overall efficiency. TechOps dealt with the overproduction problem in part by transferring resources (people in this case) from the overproductive shop to other shops, improving overall throughput. Among the lessons of the experience is that you “have to understand success at the system level,” Garrison says.
Delta TechOps cut engine maintenance by $60 million, much of which is attributable to Lean and the theory of constraints.
Two Calibration References in ONE Handheld!
Meriam’s M203 provides accurate measurement for a variety of important annual checks. The M203 has a measurement range of 0 – 900.00 mm Hg Absolute and displays pressure units in Measure Mode. Selecting the “ALT / IAS” option from the units menu converts the M203 into an Altitude and Indicated Air Speed tester.
Use the Altitude Mode to check aircraft altimeters or monitor altitude chambers. To check aircraft air speed indicators, simply press the “Tare” button to toggle to Indicated Air Speed Mode. Other features include timed leak test, choice of English or S.I. units and display back light.
RANGE & RESOLUTION • 17.403 PSIA (0 – 900.00 mm Hg Abs) • –2000.0 to +36,000.0 Feet (–609.6 to +10,973.0 Meters) • 0 – 496.4 Knots* (0 – 571.3 MPH, 0 – 919.4 km/h) * Note: the barometric pressure value at the instant the “Tare” button is activated will determine the actual maximum indicated air speed value
ACCURACY TRACEABLE TO NIST • Pressure & Altitude: ±0.02% of FS (FS = 900.00 mm Hg Abs) • Indicated Air Speed: ±0.028% of FS (FS = 900.00 mm Hg Abs)
• Includes all effect of temperature from -4° to 122°F (-20° to 50°C) Phone: 216.281.1100 Fax: 216.281.0228 Email:
sales@meriam.com
Model M203 Altimeter / Indicated Air Speed Tester
FEATURES • Four (4) “AA” alkaline batteries for 100+ hours of continuous operation • Timed leak test with leak per minute report • Field re-calibration supports two convenient methods • English and S.I. engineering units are user selectable • Display backlight • Minimum / Maximum value capture • Protective rubber boot
A SCOTT FETZER COMPANY Since 1911
Website:
www.meriam.com Meriam Process Technologies 10920 Madison Avenue, Cleveland, OH 44102 Aviation Maintenance |
avmain-mag.com | June / July 2011 23
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