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Flight crew of air carrier small transport discovered autoplt engaged as they taxied into position for takeoff and released the gust locks.
| Attributes | |
| ACN | 124110 |
| Time | |
| Date | 198909 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : lga |
| State Reference | NY |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Small Transport |
| Flight Phase | ground : holding ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time total : 4100 |
| ASRS Report | 124110 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
As our small transport was cleared on to runway 13 for position and hold or for takeoff, my first officer began the lineup checklist. As he released aircraft's control lock, the wheel turned to the right and could not be moved from this position. Thinking that perhaps the ailerons had jammed, we requested to clear the runway. We did not request any assistance. My first officer told the tower that we had a control problem. As we cleared the runway, I looked down at the autoplt and noticed that the autoplt had been inadvertently engaged. Upon disengaging the autoplt, we regained full control of the yoke. After doing a complete and satisfactory control check and after checking with the company, we continued the flight. This incident showed that it's a good idea to stick to your lineup checklist, especially if it involves a control check. In this case, it caught the mistake of the first officer in inadvertently engaging the autoplt in addition to the yaw dampener.
Original NASA ASRS Text
Title: FLT CREW OF ACR SMT DISCOVERED AUTOPLT ENGAGED AS THEY TAXIED INTO POSITION FOR TKOF AND RELEASED THE GUST LOCKS.
Narrative: AS OUR SMT WAS CLRED ON TO RWY 13 FOR POSITION AND HOLD OR FOR TKOF, MY F/O BEGAN THE LINEUP CHECKLIST. AS HE RELEASED ACFT'S CONTROL LOCK, THE WHEEL TURNED TO THE RIGHT AND COULD NOT BE MOVED FROM THIS POSITION. THINKING THAT PERHAPS THE AILERONS HAD JAMMED, WE REQUESTED TO CLEAR THE RWY. WE DID NOT REQUEST ANY ASSISTANCE. MY F/O TOLD THE TWR THAT WE HAD A CONTROL PROBLEM. AS WE CLRED THE RWY, I LOOKED DOWN AT THE AUTOPLT AND NOTICED THAT THE AUTOPLT HAD BEEN INADVERTENTLY ENGAGED. UPON DISENGAGING THE AUTOPLT, WE REGAINED FULL CONTROL OF THE YOKE. AFTER DOING A COMPLETE AND SATISFACTORY CONTROL CHECK AND AFTER CHECKING WITH THE COMPANY, WE CONTINUED THE FLT. THIS INCIDENT SHOWED THAT IT'S A GOOD IDEA TO STICK TO YOUR LINEUP CHECKLIST, ESPECIALLY IF IT INVOLVES A CONTROL CHECK. IN THIS CASE, IT CAUGHT THE MISTAKE OF THE F/O IN INADVERTENTLY ENGAGING THE AUTOPLT IN ADDITION TO THE YAW DAMPENER.
Data retrieved from NASA's ASRS site as of August 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.