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Transferring control of aircraft between first officer and captain, first officer autoplt #2 was programmed differently than new clearance. Captain selected new clearance on navigation #1, but left the #2 autoplt on, resulting in a heading deviation.
| Attributes | |
| ACN | 325650 |
| Time | |
| Date | 199601 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zun |
| State Reference | NM |
| Altitude | msl bound lower : 28000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab tower : lax |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 13000 flight time type : 3500 |
| ASRS Report | 325650 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Primary cause of this, off course event, was an inadequate transfer of flying duties from one pilot to the other. Just east of zuni the captain was given control of the aircraft, so that for currency purposes he could make the eventual landing. Transfer (switching) of the in use 'B' autoplt to the new pilot's 'a' autoplt was overlooked. New pilot tuned in zuni on navigation #1, and selected VOR/localizer with the 'B' autoplt engaged. The in use autoplt was armed to capture not zuni but phoenix, which was properly selected in navigation #2. The controller pointed out our deviation from course, we discovered the cause and corrected. No other aircraft were involved.
Original NASA ASRS Text
Title: TRANSFERRING CTL OF ACFT BTWN FO AND CAPT, FO AUTOPLT #2 WAS PROGRAMMED DIFFERENTLY THAN NEW CLRNC. CAPT SELECTED NEW CLRNC ON NAV #1, BUT LEFT THE #2 AUTOPLT ON, RESULTING IN A HDG DEV.
Narrative: PRIMARY CAUSE OF THIS, OFF COURSE EVENT, WAS AN INADEQUATE TRANSFER OF FLYING DUTIES FROM ONE PLT TO THE OTHER. JUST E OF ZUNI THE CAPT WAS GIVEN CTL OF THE ACFT, SO THAT FOR CURRENCY PURPOSES HE COULD MAKE THE EVENTUAL LNDG. TRANSFER (SWITCHING) OF THE IN USE 'B' AUTOPLT TO THE NEW PLT'S 'A' AUTOPLT WAS OVERLOOKED. NEW PLT TUNED IN ZUNI ON NAV #1, AND SELECTED VOR/LOC WITH THE 'B' AUTOPLT ENGAGED. THE IN USE AUTOPLT WAS ARMED TO CAPTURE NOT ZUNI BUT PHOENIX, WHICH WAS PROPERLY SELECTED IN NAV #2. THE CTLR POINTED OUT OUR DEV FROM COURSE, WE DISCOVERED THE CAUSE AND CORRECTED. NO OTHER ACFT WERE INVOLVED.
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.