AIR MOBILITY YOUR BABY kw" - ;r'''f!- When your Huey or HueyCobra is running a high exhaust gas tempera- ture, has a skewered up air flow with bleed band popping and is generally under par she needs prescription Rx P- D-680, Type I. Yessir-e-e-e, a dose of dry cleaning solvent followed by a water rinse is the preferred way to clean the innards of your engine to prolong its life. One or two cleaning are guaranteed to get rid of dirt that coats the stator and CLEAN COMPRESSOR BLADES SPRAY WITH n THIS Use one of these cleaners: Drydeaning Solvent, PD 680, Type FSN 6850-285-8012 55-gal drunk SWalnut shells, MIL-G-5634 FSN 5350-050-1094 50-lb bag ""'W j--^. ~^^- The engine should be cold and the bird parked in a maintenance area where you can get water. OPEN 'ER UP I m GATHER MATERIALS Here's how to go about cleaning the T53-L-11 engine- First off, latch on to a quart of dry cleaning solvent. If you're lucky enough to have air pressure handy pour the solvent into the pneumatic oil gun which is part of the organizational maintenance A, B, or C tool kit. Out in the dusty boonies get a hand- pumped water fire extinguisher. Make sure it's empty and clean. Pour the sol- vent into the extinguisher so you'll be able to spray 1 quart. With your trusty general mechanic's tool kit in hand, make for the bird. Take a couple of helpers with you. r compressor blades and to restore lost engine power. Before you crewchiefs and mechanics reach for the solvent, tho, be sure you stash pencils, pens, matches, watches--any loose items. You're going to motor over and run the engine, and the suction developed will snatch dropped items. You know what that means ... FOD for real! 52 I \~y L-~'-SC~~ .-.' C. 1