(s) SI. 737-SL-24-147 REV. A BUS POWER CONTROL UNIT (3PCLI) MODIFICATION TO PREVENT POTENTIAL LOSS OF POWER TO A TRANSFER BUS INFORMATIONAL WHEN CONNECTING GROUND POWER. SERVICE LETTER MOS Of -JUL-2002 - (s) SL 737-SL-24-149 DUAL BATTERY ('API F LENGTH. SERVICE LETTER INFORMATIONAL MOS 08-OCT-1999 - (s) SL