 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B737-300 flight crew aborts their takeoff on initial roll when the aircraft confign warning detects a stabilizer improperly set for takeoff.
| Attributes | |
| ACN | 534131 |
| Time | |
| Date | 200201 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : slc.airport |
| State Reference | UT |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | tracon : k90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight ground : takeoff roll ground other : de-ice |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 8100 flight time type : 716 |
| ASRS Report | 534131 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| Experience | flight time type : 1245 |
| ASRS Report | 534130 |
| Events | |
| Anomaly | aircraft equipment problem : critical inflight encounter : weather non adherence : far non adherence : published procedure non adherence : company policies other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : tkof configuring |
| Resolutory Action | flight crew : overcame equipment problem flight crew : rejected takeoff |
| Consequence | other |
| Supplementary | |
| Problem Areas | Environmental Factor Flight Crew Human Performance Weather Aircraft Airport |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Crew did not reset stabilizer trim to takeoff position after off-gate deicing procedures were complete. Takeoff was discontinued as soon as thrust was increased toward takeoff power and takeoff warning horn sounded. Crew immediately cleared active runway, reset trim and proceeded with a normal takeoff. Crew was distraction by unusual, off-gate deicing procedures. These procedures included starting engine #1 and shutting down the APU before deicing began, and then, using the xbleed start procedure after deicing was complete. The close proximity to other aircraft and equipment on the ramp during deicing and initial taxi was also a distracter. Supplemental information from acn 534130: crew discussed this was an unusual procedure because of the close proximity of other aircraft and equipment with the need to do xbleed start for #2 engine. During taxi out, the before start checklist was accomplished without proper trim setting.
Original NASA ASRS Text
Title: A B737-300 FLC ABORTS THEIR TKOF ON INITIAL ROLL WHEN THE ACFT CONFIGN WARNING DETECTS A STABILIZER IMPROPERLY SET FOR TKOF.
Narrative: CREW DID NOT RESET STABILIZER TRIM TO TKOF POS AFTER OFF-GATE DEICING PROCS WERE COMPLETE. TKOF WAS DISCONTINUED AS SOON AS THRUST WAS INCREASED TOWARD TKOF PWR AND TKOF WARNING HORN SOUNDED. CREW IMMEDIATELY CLRED ACTIVE RWY, RESET TRIM AND PROCEEDED WITH A NORMAL TKOF. CREW WAS DISTR BY UNUSUAL, OFF-GATE DEICING PROCS. THESE PROCS INCLUDED STARTING ENG #1 AND SHUTTING DOWN THE APU BEFORE DEICING BEGAN, AND THEN, USING THE XBLEED START PROC AFTER DEICING WAS COMPLETE. THE CLOSE PROX TO OTHER ACFT AND EQUIP ON THE RAMP DURING DEICING AND INITIAL TAXI WAS ALSO A DISTRACTER. SUPPLEMENTAL INFO FROM ACN 534130: CREW DISCUSSED THIS WAS AN UNUSUAL PROC BECAUSE OF THE CLOSE PROX OF OTHER ACFT AND EQUIP WITH THE NEED TO DO XBLEED START FOR #2 ENG. DURING TAXI OUT, THE BEFORE START CHKLIST WAS ACCOMPLISHED WITHOUT PROPER TRIM SETTING.
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.