Application. - TB-1-1520-237-20-2090005

TB 1-1520-237-20-209

e. Disposition of Hazardous Material. IAW environmental protection agency directives as implemented by your

servicing environmental coordinator (AR 200-1).

11. Special Tools, Jigs and Fixtures Required. As required per this TB and TM 1-1520-237-23

12. Application.

a. Category of Maintenance. AVUM/AVIM. Aircraft downtime will be charged to AVUM maintenance.

b. Estimated Time Required.

(1) Inspection of one aircraft.

(a) Total of 0.5 man-hours using one person.

(b) Total of 0.5 hours downtime for one end item.

(2) Removal/Installation of main rotor spindle bearing assembly.

(a) Total of 8 man-hours using 2 persons.

(b) Total of 8 hours downtime for one aircraft.

c. Estimated cost impact of stock fund items to the field:

Nomenclature

Part No.

QUANTITY COST EA.

ROTARY HEAD ASSY

70102-08200-069

$7,406.51

BEARING, SLEEVE

SB5203-202

$134.03

SPINDLE BEARING ASSY

70102-08100-044

$10,369.54

d. TB/MWOS to be applied Prior to or Concurrently with this Inspection. N/A.

e. Publications Which Require Change as a Result of This Inspection. N/A

13. References.

TM 1-1520-237-23

TM 1-1520-250-23

TM 1-1500-237-328-23

14. Recording and Reporting Requirements.

a. Reporting Compliance Suspense Date (Aircraft). Upon entering requirements of this Technical Bulletin on DA

Form 2408-13-1 on all subject Mission Design Series (MDS) aircraft, forward a priority message, Datafax or e-mail to

Commander, AMCOM, ATIN: AMSAM-SF-A (SOF Compliance Officer), per AR 95-3. Datafax Number is DSN 788-8643

or Commercial (205) 842-8643. E-mail address is safeadm@redstone.army.mil. The report will cite this Technical

Bulletin number, date of entry in DA Form 2408-13-1, the aircraft Mission Design Series and serial numbers of aircraft in

numerical order.

b. Task/Inspection Reporting Suspense Date (Aircraft). No later than 30 days after the date of this TB. Report the

results of this inspection to the logistical POC listed 16. B. Negative reports a required.