ACR MLG ON CHARTER TO STRANGE ARPT WITH INOPERATIVE APU HAD TO CROSSBLEED START SECOND ENGINE AFTER GND PNEUMATIC FAILED AFTER FIRST ENGINE START.

Narrative

DISPATCHED FROM SEA TO RAP TO SEA ON 8/SAT/88. THE MLG ACFT WAS DISPATCHED WITH THE APU INOP. THE APU NORMALLY SUPPLIES ELECTRICAL AND PNEUMATIC AIR FOR ENG STARTS. PRIOR TO DEP FROM SEA; WE CALLED OPS (FBO IN RAPID CITY) TO INSURE A GND ELECTRICAL UNIT; AND A PNEUMATIC GND AIR CART WOULD BE AVAILABLE FOR ENG STARTING. COMPANY CONFIRMED BOTH WERE AVAILABLE. GND PNEUMATIC AIR WAS AVAILABLE FOR STARTING THE RIGHT ENG. THE GND PNEUMATIC AIR THEN FAILED; AND AS A RESULT THE ONLY MEANS TO START THE LEFT ENG WAS A CROSS BLEED START. THE RIGHT ENG PWR HAD TO BE ADVANCED WELL BEHIND IDLE IN ORDER TO ACHIEVE THE NECESSARY AIR PRESSURE TO START THE LEFT ENG. THE AREA BEYOND THE ACFT WAS INSPECTED BY GND PERSONNEL AND CREW PRIOR TO ADVANCING THE RIGHT ENG TO INSURE NO JET BLAST DAMAGE WOULD OCCUR. TO MY KNOWLEDGE; NO DAMAGE WAS DONE TO EQUIP; OR PERSONNEL IN THE VICINITY; AND I FILED THIS RPT BECAUSE THIS IS A NONSTANDARD PROC. TO AVOID PWR SETTING WELL BEHIND IDLE AND POTENTIAL JET BLAST; ACFT SHOULD NOT BE DISPATCHED INTO ARPTS WITH APU'S INOP; IF ONLY ONE PNEUMATIC AIR SOURCE IS AVAILABLE ON THE FIELD.