A320 ON SHORT FINAL RWY 27L AT ORD EXPRESSED CONCERN REGARDING TIGHT SPACING WITH DEP ACFT FROM RWY 22L.

Narrative

CAPT FLYING; LNDG PHASE AT ORD RWY 27L. NIGHT LNDG; LIGHT RAIN; BROKE OUT AT 600 FT OR SO; ACFT TAKING OFF ON RWY 22L WAS TAKING ITS TIME AND BY THE TIME WE WERE WITHIN 150 FT OF THE GND; DEPARTING ACFT ON RWY 22L WAS JUST BARELY ROLLING TO MY L. I HAD IT IN SIGHT AT ALL TIMES; AND STAYED SLIGHTLY HIGH TO ADD MARGIN OF SAFETY; CAME TO A STOP AND TURNED OFF TXWY T WITH NO PROBS. I BELIEVE ATC THOUGHT THEY HAD ENOUGH TIME TO CLR THE DEPARTING ACFT BUT THINK SOMEHOW THIS WAS PUSHING THE ENVELOPE. SUPPLEMENTAL INFO ON ACN 599988: WE GAINED VISUAL WITH THE FIELD AT APPROX 500 FT AGL; AND I NOTED VARIABLE WINDS TO THE CAPT. AT APPROX 300 FT AGL; THE TWR CTLR ADVISED US; WITH 'UNCHARACTERISTIC' HESITATION; THAT HE HAD ALSO CLRED A COMPANY ACFT FOR TKOF ON RWY 22L. I DID NOT INITIALLY SEE ANY ACFT LIGHTING ON RWY 22L. BELOW 200 FT AGL; OUR LNDG LIGHTS ILLUMINATED THE APCH END OF RWY 22L (IN IMMEDIATE PROX TO THE APCH END OF RWY 27L); AND AT THAT TIME I VISUALLY SIGHTED THE COMPANY ACFT (I BELIEVE A B767) ENTERING THE RWY AND NOT YET LINED UP; BUT OBVIOUSLY BEGINNING ITS TKOF ROLL. I ASKED THE TWR CTLR ON FREQ; 'IS THIS KOSHER?' THE TWR CTLR ANSWERED IN THE AFFIRMATIVE; BUT AGAIN THERE WAS 'HESITATION.' MY LAST VIEW OF THE ACFT DEPARTING RWY 22L WAS A R TO L PASS AS IT DISAPPEARED UNDER THE NOSE OF OUR ACFT. AT MY ESTIMATION; WE PASSED DIRECTLY OVERHEAD THE DEPARTING ACFT ON CTRLINE OF RWY 22L AS WE WERE XING THAT CTRLINE ON RWY 27L. AT THAT POINT; I XMITTED 'NO WAY;' AS IF TO SAY; 'NO WAY IS THIS KOSHER;' BUT THEN I FOCUSED MY ATTN ON THE FINAL MOMENTS OF THE LNDG. AS WE WERE FLARING; WE HAD A 6 KT R QUARTERING TAILWIND. MY INITIAL IMPRESSION WAS THAT WE WERE WELL UNDER 100 FT AGL AS WE CROSSED THE CTRLINE OF RWY 22L; AND THAT OUR VERT SEPARATION WITH THE DEPARTING ACFT WAS MOST LIKELY 50 FT OR LESS. I CONTACTED THE ORD FAA TWR SUPVR. I BRIEFED HIM ON THE SIT; AND ASKED WHETHER IT WAS STANDARD PRACTICE TO DEPART ACFT FROM RWY 22L WITH AN ACFT ON SHORT FINAL FOR RWY 27L; AND HE ADVISED THAT 2 ACFT COULD NOT ENTER THE APCH ZONE FOR A RWY AT THE SAME TIME. I ADVISED HIM THAT THIS IS WHAT HAPPENED; AND HE SAID HE'D INITIATE A QUALITY ASSURANCE INCIDENT RPT ON MONDAY.