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MD80S aircraft on power back went too far and crossed taxiway line. Excessive power required to commence taxi and flight crew suspects they hit something.
| Attributes | |
| ACN | 395381 |
| Time | |
| Date | 199803 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pbi |
| State Reference | FL |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | ground : preflight ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 395381 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 395380 |
| Events | |
| Anomaly | non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
During straight-back power back from gate, guideman continued to give power back signal until we went into forward thrust on our own. Aircraft rolled back another few seconds before coming to a stop. When we got our salute and taxi clearance it required 85-86% power to get over a bump. We called operations on radio to check if we had rolled over anything or left the taxiway and were told everything was ok. So we took off and landed uneventfully at dfw. Checked landing gear and tires for any sign of damage upon gate arrival dfw and found none. After deadhead to iah called pbi operations on phone and spoke to ground crew who said we may have crossed over the double yellow line. This was not physically confirmed. After careful consideration I realize we should have stopped, parked brakes, and asked for an inspection when more than normal taxi power was required to move aircraft, and tow aircraft if necessary. Additionally the guideman should be more aware of aircraft position relative to edge of taxiway and be more assertive with signals.
Original NASA ASRS Text
Title: MD80S ACFT ON PWR BACK WENT TOO FAR AND CROSSED TXWY LINE. EXCESSIVE PWR REQUIRED TO COMMENCE TAXI AND FLC SUSPECTS THEY HIT SOMETHING.
Narrative: DURING STRAIGHT-BACK PWR BACK FROM GATE, GUIDEMAN CONTINUED TO GIVE PWR BACK SIGNAL UNTIL WE WENT INTO FORWARD THRUST ON OUR OWN. ACFT ROLLED BACK ANOTHER FEW SECONDS BEFORE COMING TO A STOP. WHEN WE GOT OUR SALUTE AND TAXI CLRNC IT REQUIRED 85-86% PWR TO GET OVER A BUMP. WE CALLED OPS ON RADIO TO CHK IF WE HAD ROLLED OVER ANYTHING OR LEFT THE TXWY AND WERE TOLD EVERYTHING WAS OK. SO WE TOOK OFF AND LANDED UNEVENTFULLY AT DFW. CHKED LNDG GEAR AND TIRES FOR ANY SIGN OF DAMAGE UPON GATE ARR DFW AND FOUND NONE. AFTER DEADHEAD TO IAH CALLED PBI OPS ON PHONE AND SPOKE TO GND CREW WHO SAID WE MAY HAVE CROSSED OVER THE DOUBLE YELLOW LINE. THIS WAS NOT PHYSICALLY CONFIRMED. AFTER CAREFUL CONSIDERATION I REALIZE WE SHOULD HAVE STOPPED, PARKED BRAKES, AND ASKED FOR AN INSPECTION WHEN MORE THAN NORMAL TAXI PWR WAS REQUIRED TO MOVE ACFT, AND TOW ACFT IF NECESSARY. ADDITIONALLY THE GUIDEMAN SHOULD BE MORE AWARE OF ACFT POS RELATIVE TO EDGE OF TXWY AND BE MORE ASSERTIVE WITH SIGNALS.
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.