What was found
CAPT ALT UNRESPONSIVE TO ALL CHANGE BOTH CADC/STBY MODES, PERFORMED CHECK DIFFERENCE BETWEEN ALT INDICATORS (3,34,7), CHANGE ALT LAGS IN DESCENT BY OVER 300' AND DIFFERS BY OVER 180' AT EL 290-310-MACH .84. T/S AND FOUND PIN NR 22 AT PLUG DN 101. CAPT ALT INDICATOR WIRE BROKEN, REPAIRED WIRING PER WDM 34-12-12. ALSO, R/R WITH NEW CAP ALT INDICATOR AS PRECAUTIONARY AS PER MM 34-13-04. PERFORMED PRIMARY ALT TEST AS PER AMM 34-13-04, ALL OPS CHECK NORMAL.