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Upon arrival; the contract ramp marshaller mistakenly signaled 'chocks in' with no chocks present. The aircraft rolled when brakes were released.
| Attributes | |
| ACN | 665458 |
| Time | |
| Date | 200507 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : sat.airport |
| State Reference | TX |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 65 flight time total : 10000 flight time type : 7000 |
| ASRS Report | 665458 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : ground less severe non adherence : company policies non adherence : published procedure other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : regained aircraft control |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Company Flight Crew Human Performance |
| Primary Problem | Company |
Narrative:
Upon arrival; we were marshalled into the chocks. The marshaller gave me the chocks signal and I acknowledged him. I got out of my seat to arm the cargo door and then returned to my seat to run the shutdown and secure checklist. I released the brakes and looked out the side of my window to make sure we were not rolling. I was taught to always look out the window after releasing the brakes during IOE. I always do. At that point we were stationary. I got out of my seat to now open the entry door and my first officer yells we are rolling. He then applied maximum braking and brought the aircraft to a stop. I asked the marshaller; who I then found out was contract help; 'did you not give me a chocks in signal?' he replied that his signal implied that there are no chocks and that he had to go get some chocks. I corrected him and told him; 'the signal you gave me was a chocks in.' my first officer told him the same thing. I do not know how far the aircraft rolled.
Original NASA ASRS Text
Title: UPON ARR; THE CONTRACT RAMP MARSHALLER MISTAKENLY SIGNALED 'CHOCKS IN' WITH NO CHOCKS PRESENT. THE ACFT ROLLED WHEN BRAKES WERE RELEASED.
Narrative: UPON ARR; WE WERE MARSHALLED INTO THE CHOCKS. THE MARSHALLER GAVE ME THE CHOCKS SIGNAL AND I ACKNOWLEDGED HIM. I GOT OUT OF MY SEAT TO ARM THE CARGO DOOR AND THEN RETURNED TO MY SEAT TO RUN THE SHUTDOWN AND SECURE CHKLIST. I RELEASED THE BRAKES AND LOOKED OUT THE SIDE OF MY WINDOW TO MAKE SURE WE WERE NOT ROLLING. I WAS TAUGHT TO ALWAYS LOOK OUT THE WINDOW AFTER RELEASING THE BRAKES DURING IOE. I ALWAYS DO. AT THAT POINT WE WERE STATIONARY. I GOT OUT OF MY SEAT TO NOW OPEN THE ENTRY DOOR AND MY FO YELLS WE ARE ROLLING. HE THEN APPLIED MAXIMUM BRAKING AND BROUGHT THE ACFT TO A STOP. I ASKED THE MARSHALLER; WHO I THEN FOUND OUT WAS CONTRACT HELP; 'DID YOU NOT GIVE ME A CHOCKS IN SIGNAL?' HE REPLIED THAT HIS SIGNAL IMPLIED THAT THERE ARE NO CHOCKS AND THAT HE HAD TO GO GET SOME CHOCKS. I CORRECTED HIM AND TOLD HIM; 'THE SIGNAL YOU GAVE ME WAS A CHOCKS IN.' MY FO TOLD HIM THE SAME THING. I DO NOT KNOW HOW FAR THE ACFT ROLLED.
Data retrieved from NASA's ASRS site as of January 2009 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.