Subject: NAS2-99090 January monthly report

Date: February 1, 2001

January has been devoted to repairing the damage which occurred from the December 13^th accident.

Work completed in January:

1. Proof tested repaired mast to 15,000 lbs.
2. Completed new rotor spar.
3. Modified blade molds to increase chord at tip from 7" to 9" (eliminates T.E. tab added to 1^st 43.5 ft. dia. blade)
4. Completed new shear web plugs and molds for rotor blade - allows the spar to blade resin potting to be added in one step instead of 4 and increased the stiffness of the inboard blade section.
5. Made 2 lead molds to increase weight in outboard blade tip - now 55 lbs. depleted uranium and 7 lbs. lead.
6. Made new blade curing oven.
7. Bonded one blade up.
8. Completed all parts (skins, shear webs, & L.E. weights) for 2^nd blade.
9. Made mold for new design cowl flap and laid up cowl flap.
10. Cut out aft bottom of fuselage for new cowl flap.
11. Reinstalled 6" shorter nose landing gear extension - configuration prior to December 1999. Allows L.G. to retract without modifying wheel well.
12. Took main L.G. apart and installed an adjustable orifice to control spring back rate and reinstalled in aircraft.
13. Replaced brake pads.
14. Finished fabrication of all metal parts damaged in accident.
15. Modified belt drive ratio to provide approx. 10:1 ratio between engine and rotor - provides enough HP to overspeed rotor to a proof test RPM of 450 - tip mach of 0.92.
16. Engine, prerotator and rotor head are reassembled and ready to be reinstalled in the aircraft.
17. Updated web site in a number of areas - major item was the Business Plan.

Major items yet to be completed before next flight - est. mid March. Still on schedule.

1. Finish bonding 2^nd blade together, pre-finish, paint and balance.
2. Repair right wing, rudders and vertical stabilizers.
3. Finish new design cooling air cowl flap.
4. Pre-finish and paint air inlet and repairs to mast.
5. Test rotor and prerotator in pit.
6. Finish new communication link so ground can hear real-time cockpit conversation between the pilots.