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B767 crew had a stick shaker activation when the crew did not realize the autothrottles were disengaged.
| Attributes | |
| ACN | 613077 |
| Time | |
| Date | 200403 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : atl.airport |
| State Reference | GA |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : a80.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 70 flight time total : 12000 flight time type : 300 |
| ASRS Report | 613077 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 70 flight time total : 12000 flight time type : 300 |
| ASRS Report | 613077 |
| Events | |
| Anomaly | non adherence : company policies non adherence : published procedure other anomaly |
| Independent Detector | aircraft equipment other aircraft equipment : stick shacker other flight crewa other flight crewb |
| Resolutory Action | aircraft : automation overrode flight crew flight crew : overrode automation flight crew : regained aircraft control other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On descent into atl, leveling off at 3500 ft, got slight/momentary stick shaker. Autothrottles kicked off. Looking for traffic, didn't notice autothrottle disengaged. Added power and lowered more flaps, rolled out of turn. No altitude loss or other problems. Supplemental information from acn 613241: as PNF, I did not catch that autothrottles were disengaged as we leveled at 3500 ft while rolling out on our base turn. My head was down checking the idents for the localizer when we got a momentary stick shaker. Speed was low for current flaps, captain made aggressive power input, called for more (20 degrees from 15 degrees) flaps, and aircraft continued normally. I'll make a point now of checking for not only 'altitude capture' annunciation, but also the autothrottle indication now.
Original NASA ASRS Text
Title: B767 CREW HAD A STICK SHAKER ACTIVATION WHEN THE CREW DID NOT REALIZE THE AUTOTHROTTLES WERE DISENGAGED.
Narrative: ON DSCNT INTO ATL, LEVELING OFF AT 3500 FT, GOT SLIGHT/MOMENTARY STICK SHAKER. AUTOTHROTTLES KICKED OFF. LOOKING FOR TFC, DIDN'T NOTICE AUTOTHROTTLE DISENGAGED. ADDED PWR AND LOWERED MORE FLAPS, ROLLED OUT OF TURN. NO ALT LOSS OR OTHER PROBS. SUPPLEMENTAL INFO FROM ACN 613241: AS PNF, I DID NOT CATCH THAT AUTOTHROTTLES WERE DISENGAGED AS WE LEVELED AT 3500 FT WHILE ROLLING OUT ON OUR BASE TURN. MY HEAD WAS DOWN CHKING THE IDENTS FOR THE LOC WHEN WE GOT A MOMENTARY STICK SHAKER. SPD WAS LOW FOR CURRENT FLAPS, CAPT MADE AGGRESSIVE PWR INPUT, CALLED FOR MORE (20 DEGS FROM 15 DEGS) FLAPS, AND ACFT CONTINUED NORMALLY. I'LL MAKE A POINT NOW OF CHKING FOR NOT ONLY 'ALT CAPTURE' ANNUNCIATION, BUT ALSO THE AUTOTHROTTLE INDICATION NOW.
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.