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Current Status and Recent Accomplishments E-6A MLG Lock Hook Shaft installed on second Aircraft

HVOF as a Hard Chrome Replacement. Current Status and Recent Accomplishments E-6A MLG Lock Hook Shaft installed on second Aircraft

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Current Status and Recent Accomplishments E-6A MLG Lock Hook Shaft installed on second Aircraft

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  1. HVOF as a Hard Chrome Replacement • Current Status and Recent Accomplishments • E-6A MLG Lock Hook Shaft installed on second Aircraft • Second P-3 MLG Piston coated with WC/Co 83/17 HVOF coating To be used in P-3 SLAP/SLEP - Full Scale Fatigue Test Funded by Naval Research Lab (NRL) Testing to begin August 2001 (24 month test) • Four EA-6B Landing Gear components HVOF coated at Engelhard (Meeting at NAVAIR/PAX River 13 April 00 to discuss) (Flight Clearance Still Pending at NAVAIR) • P-3 Bomb Bay Door Actuator Pistons coated, ground, & superfinished Four BBD Actuator Assemblies RFI and to be installed on VP-30 Aircraft May 01 • J52 Rear Compressor Drive Turbine Shaft #5 bearing journal coated and ground • J52 Main Oil Pump Drive Spur Gears coated and ground to a 2 micro inch finish • Provided HVOF grinding training using Diamond Superabrasives at Hill AFB • Six TF34 ARI Components coated and ground • TF34 50 hr. ASMET engine run completed

  2. HVOF as a Hard Chrome Replacement Current Status of AMEC Specifications APPLICATION OF HVOF COATINGS PROCESS SPEC & TWO POWDER SPECS: - Sponsored by Don Parker - Received enough votes for 28-day ballot - Spec. to be forwarded to AMEC Committee B at June meeting - Need to address technical/informational comments ROUGH DRAFT OF AMS GRINDING PROCESS SPECIFICATION: - Sponsored by Jon L. Devereaux - Initial AMEC comments incorporated - Specification review by grinding wheel manufacturers completed - Grinding wheel manufacturer’s comments incorporated - Ph.D. consultant and Ph.D. Professor @ UCONN comments incorporated - Spec. to be submitted to AMEC at June meeting

  3. HVOF as a Hard Chrome Replacement Current Status of HVOF Coated EA-6B Main Landing Gear Flight Clearance MLG Collar and Piston coated Oct. 99 Components completed depot processing Dec. 99 Flight clearance requested Jan 00 Meeting at NAVAIR/Pax River 13 April 00 Obtained NAVAIR approval of data May 00 Flight clearance at AIR 4.3.3 waiting final approval

  4. HVOF as a Hard Chrome Replacement NAVAIR ONLY HVOF L.G. meeting 16 Nov 00 Flight clearance on-hold NAVAIR presented 240KSI requirement for all landing gear fatigue tests at Dec HCAT mtg. NAVAIR & NRL meeting 29 Jan 01 Large sample (2”-3” dia) testing discussed NAVAIR (Dr. Eui Lee) to conduct testing Flight clearance at AIR 4.3.3 waiting final approval

  5. HVOF as a Hard Chrome Replacement Current Status of P-3 Main Landing Gear HVOF MLG Piston installed 26 April 99 on VP-30 Aircraft BuNo 156522 Aircraft completed PDM at NADEP JAX on 5 Dec 99 PDM extended due to multiple spar cap insertions 850 Landings on HVOF coated MLG Piston (Aug 00) HVOF Coated Piston removed from service Aug 00 due to internal oil leak on ID-2 (NOT HVOF COATED)

  6. HVOF as a Hard Chrome Replacement Current Status of E-6A Main Landing Gear Two HVOF coated E-6A MLG Uplock Hook Shafts installed 10 March 99 on A/C 164388 1,694 Flight Hours (3/31/01) A/C in Mod 1,497 Landings (3/31/01) Waco, TX One HVOF coated E-6A MLG Uplock Hook Shaft installed on Aircraft 162784 in Feb. 2000 1,812 Flight Hours (3/31/01) 1,487 Landings (3/31/01)

  7. HVOF as a Hard Chrome Replacement Status of New HVOF Cell at NADEP JAX Specification for HVOF Cell complete Contract Award - March 29, 2000 Cell to be completed July 2001 Natural Gas Line Stubbed-out at Service Pad Blast cabinets for Cell #7 delivered 8/23/00 Blast cabinets installed November 00 Blast cabinets operational Jan 01 Sound-proof enclosed room installed Exhaust plenum & Air Handling System installed FANUC Gantry Robot System for Cell #7 delivered Multi-Coat Process Control Unit Installed

  8. HVOF as a Hard Chrome Replacement TF34 ARI PEWG/HCAT Cr. Replacement Effort B-Sump Housing coated T400 Plasma **Axis B Bevel Gear coated T800 HVOF **HPC Rear Shaft coated T800 HVOF #5 Carbon Seal Runner coated WC/Co 83/17 HVOF #6 Carbon Seal Runner coated WC/Co 83/17 HVOF #7 Carbon Seal Runner coated WC/Co 83/17 HVOF All six components included in 50 hr. endurance test

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