
<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               SEP-30-1997
<EXCHANGE-RATE>                                      1
<CASH>                                           4,616
<SECURITIES>                                         0
<RECEIVABLES>                                   26,772
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                32,759
<PP&E>                                          33,874
<DEPRECIATION>                                  20,061
<TOTAL-ASSETS>                                  60,366
<CURRENT-LIABILITIES>                           12,251
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           296
<OTHER-SE>                                      42,217
<TOTAL-LIABILITY-AND-EQUITY>                    42,513
<SALES>                                              0
<TOTAL-REVENUES>                                75,607
<CGS>                                                0
<TOTAL-COSTS>                                   72,316
<OTHER-EXPENSES>                               (1,192)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  42
<INCOME-PRETAX>                                  4,441
<INCOME-TAX>                                     2,441
<INCOME-CONTINUING>                              2,000
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,000
<EPS-PRIMARY>                                     0.58
<EPS-DILUTED>                                     0.54
        

</TABLE>
