Summary of Problem. - TB-1-1520-237-20-2090002

TB 1-1520-237-20-209

e. Maintenance Trainers. (Category A and B). Same as para 1a.

f. Component/Parts in stock including war reserves

(1) Wholesale Stock. N/A.

(2) Retail Stock. Report receipt of this TB lAW paragraph 14c(2). Upon receipt of this TB Commanders and

others maintaining retail stock as installation level and below shall contact the supported aviation unit to perform the

inspection required by paragraph 8 and the correction procedures on paragraph 9 on discrepant material. Report

compliance with this TB IAW paragraph 14d (2).

g. Components/Parts in work (Depot Level and others. N/A.

Task/Inspection Suspense Date. Within next 10 flight hours/14 days.

Reporting Compliance Suspense Date. No later than 30 November 9 per paragraph 14.a of this TB.

Summary of Problem.

a. Spindle bearing assemblies procured under a spares contract initially did not include the sleeve bearing P/N

SB5203-202. Two instances of the spindle bearing assembly installation onto aircraft without the sleeve bearing were

found. UH-60-97-ASAM-13 (TB 1-1520-237-20-194) was issued to locate and remove any additional assemblies without

the sleeve bearing. Six months after the inspection was completed, two more spindle bearings assemblies without the

required sleeve bearings were found installed on aircraft. This TB is being published to ensure that no more instances of

assemblies without bearings installed are in the H-60 fleet.

b. For manpower/downtime and funding impacts see paragraph 12.

c. The purpose of this TB is to require a one-time inspection of the spindle bearing assembly, P/N 70102-08100-

044/056, for the existence of the sleeve bearing, P/N SB5203-202.

End Items to be inspected. H-60 Series Aircraft.

Assembly Components to be inspected.

Nomenclature

Pa No.

NSN

SPINDLE BEARING ASSY

70102-08100-044

SPINDLE BEARING ASSY

70102-08100-056

Parts to be inspected. N/A.

Nomenclature

Part No.

NSN

INNER BEARING RING

SB5203-104

3110-01-114-1001

SLEEVE BEARING

SB5203-202

3120-01-083-3265

ELASTOMERIC BEARING

SB7001-048

8. Inspection Procedures. Verify the existence of the sleeve bearing, P/N SB5203-202, within every spindle assembly,

P/N 70102-08100-0441056

a. Inspection on aircraft.