Narrative:

On approach to runway 27 bos, we were following a B777, 5 mi in trail. At about 700-800 ft on GS, tower cleared, almost simultaneously, 2 aircraft for takeoff on runways 22L&right. My poorly drawn depiction of what I saw as a potentially dangerous situation afforded us virtually no options (safe) in the event that we had to go around at 300-400 ft. If we had proceeded straight or left we might have impacted the runway 22L aircraft. If we had turned right we might have impacted the trailing runway 22R departure. It brought to mind the near hit escape maneuver which took place recently at lga, only this time with 2 intruders. I realize that the tower is under a lot of pressure to keep those departure/arrival numbers up, but sanity needs to prevail. Exactly a week ago a friend of mine based in bos had 2 rejected lndgs in bos on 1 arrival in almost the same scenario. It certainly gives you pause for thought as we as an industry are evaluating lahso escape maneuvers. Callback conversation with reporter revealed the following information: reporter stated that a fellow pilot with his airline, exactly 1 week prior, had had to make 2 gars, under very similar circumstances, before finally landing successfully on runway 27. However, 1 of those gars was, according to reporter, the result of in trail spacing problems. He doesn't know what caused the other.

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Original NASA ASRS Text

Title: PLT OF ACR FLT ON SHORT APCH TO BOS RWY 27 FEELS THAT, HAD A GAR BEEN NECESSARY, A CRITICAL AIRBORNE CONFLICT COULD HAVE DEVELOPED WITH EITHER OR BOTH ACFT CONCURRENTLY DEPARTING OFF RWYS 22L AND 22R.

Narrative: ON APCH TO RWY 27 BOS, WE WERE FOLLOWING A B777, 5 MI IN TRAIL. AT ABOUT 700-800 FT ON GS, TWR CLRED, ALMOST SIMULTANEOUSLY, 2 ACFT FOR TKOF ON RWYS 22L&R. MY POORLY DRAWN DEPICTION OF WHAT I SAW AS A POTENTIALLY DANGEROUS SIT AFFORDED US VIRTUALLY NO OPTIONS (SAFE) IN THE EVENT THAT WE HAD TO GO AROUND AT 300-400 FT. IF WE HAD PROCEEDED STRAIGHT OR L WE MIGHT HAVE IMPACTED THE RWY 22L ACFT. IF WE HAD TURNED R WE MIGHT HAVE IMPACTED THE TRAILING RWY 22R DEP. IT BROUGHT TO MIND THE NEAR HIT ESCAPE MANEUVER WHICH TOOK PLACE RECENTLY AT LGA, ONLY THIS TIME WITH 2 INTRUDERS. I REALIZE THAT THE TWR IS UNDER A LOT OF PRESSURE TO KEEP THOSE DEP/ARR NUMBERS UP, BUT SANITY NEEDS TO PREVAIL. EXACTLY A WK AGO A FRIEND OF MINE BASED IN BOS HAD 2 REJECTED LNDGS IN BOS ON 1 ARR IN ALMOST THE SAME SCENARIO. IT CERTAINLY GIVES YOU PAUSE FOR THOUGHT AS WE AS AN INDUSTRY ARE EVALUATING LAHSO ESCAPE MANEUVERS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT A FELLOW PLT WITH HIS AIRLINE, EXACTLY 1 WK PRIOR, HAD HAD TO MAKE 2 GARS, UNDER VERY SIMILAR CIRCUMSTANCES, BEFORE FINALLY LNDG SUCCESSFULLY ON RWY 27. HOWEVER, 1 OF THOSE GARS WAS, ACCORDING TO RPTR, THE RESULT OF IN TRAIL SPACING PROBS. HE DOESN'T KNOW WHAT CAUSED THE OTHER.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.