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SW4 training flight stops when observing B757 begin to taxi onto runway simultaneously after receiving a taxi into position and hold clearance is received from mia tower.
| Attributes | |
| ACN | 539229 |
| Time | |
| Date | 200202 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : mia.airport |
| State Reference | FL |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | SA-227 AC Metro III |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | VFR |
| Aircraft 2 | |
| Controlling Facilities | tower : mia.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : takeoff roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : multi engine |
| Experience | flight time last 90 days : 20 flight time total : 14000 flight time type : 600 |
| ASRS Report | 538229 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer observation : company check pilot |
| Events | |
| Anomaly | conflict : ground less severe non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : became reoriented flight crew : took precautionary avoidance action |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
I was taxiing the aircraft as instructed via taxiway P for departure to runway 27L at mia. As we approached the hold short, I switched to tower frequency 118.3. A B757 was also taxiing for the same runway. The tower called our call sign to taxi into position. As the B757 was ahead and to our left, I called to confirm 'clearance to taxi into position.' tower responded 'yes, taxi into position.' thinking that we were to depart ahead of the B757, I rolled over the hold short line and then noticed the B757 was rolling slowly for takeoff. The B757 crew then keyed up and said to us he 'believed' controller was putting us ahead of them. My aircraft was stopped well clear of the departing B757 and they, seeing us, stopped, then continued for takeoff. The ground controller never instructed us to switch to tower or it was blocked. As I never heard the B757 cleared for takeoff or instructed to take the runway, I believed that the heavy aircraft was to hold and we departed ahead of him. The B757 crew was also confused. This situation where a departing aircraft is cleared for takeoff when up field of an aircraft is not uncommon and occurs at the intersection of runway 9L and taxiway L1. The situation was never a danger to either aircraft. This could be prevented if the tower would instruct the aircraft to 'taxi into position behind the departing aircraft' or 'after the departing aircraft clears, you are to taxi into position.' it is my hope that my description of this helps others to gain insight to these contributory factors an enhances safety.
Original NASA ASRS Text
Title: SW4 TRAINING FLT STOPS WHEN OBSERVING B757 BEGIN TO TAXI ONTO RWY SIMULTANEOUSLY AFTER RECEIVING A TAXI INTO POS AND HOLD CLRNC IS RECEIVED FROM MIA TWR.
Narrative: I WAS TAXIING THE ACFT AS INSTRUCTED VIA TXWY P FOR DEP TO RWY 27L AT MIA. AS WE APCHED THE HOLD SHORT, I SWITCHED TO TWR FREQ 118.3. A B757 WAS ALSO TAXIING FOR THE SAME RWY. THE TWR CALLED OUR CALL SIGN TO TAXI INTO POS. AS THE B757 WAS AHEAD AND TO OUR L, I CALLED TO CONFIRM 'CLRNC TO TAXI INTO POS.' TWR RESPONDED 'YES, TAXI INTO POS.' THINKING THAT WE WERE TO DEPART AHEAD OF THE B757, I ROLLED OVER THE HOLD SHORT LINE AND THEN NOTICED THE B757 WAS ROLLING SLOWLY FOR TKOF. THE B757 CREW THEN KEYED UP AND SAID TO US HE 'BELIEVED' CTLR WAS PUTTING US AHEAD OF THEM. MY ACFT WAS STOPPED WELL CLR OF THE DEPARTING B757 AND THEY, SEEING US, STOPPED, THEN CONTINUED FOR TKOF. THE GND CTLR NEVER INSTRUCTED US TO SWITCH TO TWR OR IT WAS BLOCKED. AS I NEVER HEARD THE B757 CLRED FOR TKOF OR INSTRUCTED TO TAKE THE RWY, I BELIEVED THAT THE HVY ACFT WAS TO HOLD AND WE DEPARTED AHEAD OF HIM. THE B757 CREW WAS ALSO CONFUSED. THIS SIT WHERE A DEPARTING ACFT IS CLRED FOR TKOF WHEN UP FIELD OF AN ACFT IS NOT UNCOMMON AND OCCURS AT THE INTXN OF RWY 9L AND TXWY L1. THE SIT WAS NEVER A DANGER TO EITHER ACFT. THIS COULD BE PREVENTED IF THE TWR WOULD INSTRUCT THE ACFT TO 'TAXI INTO POS BEHIND THE DEPARTING ACFT' OR 'AFTER THE DEPARTING ACFT CLRS, YOU ARE TO TAXI INTO POS.' IT IS MY HOPE THAT MY DESCRIPTION OF THIS HELPS OTHERS TO GAIN INSIGHT TO THESE CONTRIBUTORY FACTORS AN ENHANCES SAFETY.
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.