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During lahso runways 22 and 27 at bos, B777 refused landing clearance and initiated a go around simultaneously with the ATCT local controller directed go around of the reporter's B737. A critical separation problem ensued.
| Attributes | |
| ACN | 614039 |
| Time | |
| Date | 200404 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bos.airport |
| State Reference | MA |
| Altitude | agl single value : 175 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : bos.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach landing : go around |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : bos.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach landing : go around |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 2200 flight time total : 24000 flight time type : 170 |
| ASRS Report | 614039 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance controller : issued alert flight crew : executed go around flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | FAA Environmental Factor Airport ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Ambiguous |
Narrative:
My flight was cleared to lahso runway 22L at bos. A B777 was landing runway 27. The B777 stated he could not accept a landing in this situation. Bos tower issued 'air carrier X go around,' which we immediately complied with. The B777 on his own initiated a go around. Bos tower issued us a hard right turn to 300 degrees on climb 3000 ft. The B777 was given a left turn and climb 2000 ft. I don't know how close but it was very close. Talked to the tower supervisor and explained the B777 initiated a go around on his own.
Original NASA ASRS Text
Title: DURING LAHSO RWYS 22 AND 27 AT BOS, B777 REFUSED LNDG CLRNC AND INITIATED A GAR SIMULTANEOUSLY WITH THE ATCT LCL CTLR DIRECTED GAR OF THE RPTR'S B737. A CRITICAL SEPARATION PROB ENSUED.
Narrative: MY FLT WAS CLRED TO LAHSO RWY 22L AT BOS. A B777 WAS LNDG RWY 27. THE B777 STATED HE COULD NOT ACCEPT A LNDG IN THIS SIT. BOS TWR ISSUED 'ACR X GO AROUND,' WHICH WE IMMEDIATELY COMPLIED WITH. THE B777 ON HIS OWN INITIATED A GAR. BOS TWR ISSUED US A HARD R TURN TO 300 DEGS ON CLB 3000 FT. THE B777 WAS GIVEN A L TURN AND CLB 2000 FT. I DON'T KNOW HOW CLOSE BUT IT WAS VERY CLOSE. TALKED TO THE TWR SUPVR AND EXPLAINED THE B777 INITIATED A GAR ON HIS OWN.
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.