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Flight crew of medium large transport is cleared from ramp deice procedure but as they begin taxi the wing strikes a deice truck that had been previously cleared.
| Attributes | |
| ACN | 385956 |
| Time | |
| Date | 199711 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : cvg |
| State Reference | OH |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | ground : preflight ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 220 flight time total : 5000 flight time type : 1000 |
| ASRS Report | 385956 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : ground critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
After being deiced/anti-iced and given pertinent information via radio, we were cleared by deice personnel to contact ramp tower for taxi. Ramp tower instructed us to taxi to spot X. As we slowly moved forward, we felt a slight shudder and the captain smoothly stopped the aircraft. We called deice radio back and asked what happened. After a pause he responded that there had been a communications mix-up and that a deice truck that had previously cleared us had moved back in front of the wing (without clearance). We taxied back to a gate where maintenance inspection revealed damage to 2 slats. Contributing factors include: 1) WX -- 1/2 mi visibility, wind gusting to 21 KTS, snow. 2) several deice vehicles on 1 frequency without positive control or verification of each truck position, ie, several trucks called clear and the coordinator thought they all had cleared.
Original NASA ASRS Text
Title: FLC OF MLG IS CLRED FROM RAMP DEICE PROC BUT AS THEY BEGIN TAXI THE WING STRIKES A DEICE TRUCK THAT HAD BEEN PREVIOUSLY CLRED.
Narrative: AFTER BEING DEICED/ANTI-ICED AND GIVEN PERTINENT INFO VIA RADIO, WE WERE CLRED BY DEICE PERSONNEL TO CONTACT RAMP TWR FOR TAXI. RAMP TWR INSTRUCTED US TO TAXI TO SPOT X. AS WE SLOWLY MOVED FORWARD, WE FELT A SLIGHT SHUDDER AND THE CAPT SMOOTHLY STOPPED THE ACFT. WE CALLED DEICE RADIO BACK AND ASKED WHAT HAPPENED. AFTER A PAUSE HE RESPONDED THAT THERE HAD BEEN A COMS MIX-UP AND THAT A DEICE TRUCK THAT HAD PREVIOUSLY CLRED US HAD MOVED BACK IN FRONT OF THE WING (WITHOUT CLRNC). WE TAXIED BACK TO A GATE WHERE MAINT INSPECTION REVEALED DAMAGE TO 2 SLATS. CONTRIBUTING FACTORS INCLUDE: 1) WX -- 1/2 MI VISIBILITY, WIND GUSTING TO 21 KTS, SNOW. 2) SEVERAL DEICE VEHICLES ON 1 FREQ WITHOUT POSITIVE CTL OR VERIFICATION OF EACH TRUCK POS, IE, SEVERAL TRUCKS CALLED CLR AND THE COORDINATOR THOUGHT THEY ALL HAD CLRED.
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.