37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 588083 |
Time | |
Date | 200307 |
Day | Mon |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : dfw.airport |
State Reference | TX |
Altitude | msl single value : 12000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tracon : d10.tracon |
Operator | common carrier : air carrier |
Make Model Name | Regional Jet 200 ER&LR |
Operating Under FAR Part | Part 121 |
Flight Phase | climbout : intermediate altitude |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : multi engine pilot : atp pilot : instrument pilot : cfi |
Experience | flight time last 90 days : 110 flight time total : 3900 flight time type : 2000 |
ASRS Report | 588083 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Events | |
Anomaly | aircraft equipment problem : critical non adherence : company policies non adherence : published procedure |
Independent Detector | other flight crewa |
Resolutory Action | flight crew : overrode automation flight crew : diverted to another airport flight crew : landed in emergency condition other |
Supplementary | |
Problem Areas | Flight Crew Human Performance Aircraft Chart Or Publication |
Primary Problem | Flight Crew Human Performance |
Narrative:
I was flying the aircraft manually on climb out from dfw. I began trimming the nose down in order to accelerate from 250 KTS to 290 KTS at approximately 12000 ft after ATC removed our 250 KT speed restr. I noticed unusual nose down force on the control yoke and the aircraft descended approximately 100 ft while I was attempting to compensate. The horizontal stabilizer trim warbler sounded and I disconnected the stabilizer trim on the control yoke immediately. I told the first officer I would fly the aircraft (manually, because the autoplt isn't usable without horizontal stabilizer trim) and work the radios. I assigned him the responsibility of completing the 'horizontal stabilizer trim runway' checklist, which is located in the 'emergency' section of the QRH. After an uneventful landing at dfw, it came to my attention that he had actually completed the 'horizontal stabilizer trim malfunction' checklist, which is located in the 'abnormal' section of the QRH. Partly due to task saturation, I failed to catch this error. Completing the incorrect checklist meant that he re-engaged stabilizer trim channel 2. This action could have seriously worsened our situation had horizontal stabilizer trim channel 2 been the cause of the malfunction.
Original NASA ASRS Text
Title: AFTER EXPERIENCING RUNAWAY STABILIZER TRIM, FLT CREW OF CRJ PERFORMED INAPPROPRIATE ABNORMAL TRIM CHKLIST VICE RUNAWAY STABILIZER TRIM EMER CHKLIST. FORTUNATELY, THE ANOMALY DID NOT RECUR AND THE ERROR WAS DISCOVERED AFTER A SAFE LNDG.
Narrative: I WAS FLYING THE ACFT MANUALLY ON CLBOUT FROM DFW. I BEGAN TRIMMING THE NOSE DOWN IN ORDER TO ACCELERATE FROM 250 KTS TO 290 KTS AT APPROX 12000 FT AFTER ATC REMOVED OUR 250 KT SPD RESTR. I NOTICED UNUSUAL NOSE DOWN FORCE ON THE CTL YOKE AND THE ACFT DSNDED APPROX 100 FT WHILE I WAS ATTEMPTING TO COMPENSATE. THE HORIZ STABILIZER TRIM WARBLER SOUNDED AND I DISCONNECTED THE STABILIZER TRIM ON THE CTL YOKE IMMEDIATELY. I TOLD THE FO I WOULD FLY THE ACFT (MANUALLY, BECAUSE THE AUTOPLT ISN'T USABLE WITHOUT HORIZ STABILIZER TRIM) AND WORK THE RADIOS. I ASSIGNED HIM THE RESPONSIBILITY OF COMPLETING THE 'HORIZ STABILIZER TRIM RWY' CHKLIST, WHICH IS LOCATED IN THE 'EMER' SECTION OF THE QRH. AFTER AN UNEVENTFUL LNDG AT DFW, IT CAME TO MY ATTN THAT HE HAD ACTUALLY COMPLETED THE 'HORIZ STABILIZER TRIM MALFUNCTION' CHKLIST, WHICH IS LOCATED IN THE 'ABNORMAL' SECTION OF THE QRH. PARTLY DUE TO TASK SATURATION, I FAILED TO CATCH THIS ERROR. COMPLETING THE INCORRECT CHKLIST MEANT THAT HE RE-ENGAGED STABILIZER TRIM CHANNEL 2. THIS ACTION COULD HAVE SERIOUSLY WORSENED OUR SIT HAD HORIZ STABILIZER TRIM CHANNEL 2 BEEN THE CAUSE OF THE MALFUNCTION.
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.