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|
Attributes | |
ACN | 231376 |
Time | |
Date | 199301 |
Day | Thu |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : sgu |
State Reference | UT |
Altitude | agl bound lower : 500 agl bound upper : 800 |
Environment | |
Flight Conditions | IMC |
Light | Dusk |
Aircraft 1 | |
Controlling Facilities | artcc : zla |
Operator | common carrier : air carrier |
Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
Navigation In Use | Other |
Flight Phase | climbout : initial climbout : takeoff |
Route In Use | departure other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : cfi pilot : atp |
Experience | flight time last 90 days : 160 flight time total : 6500 flight time type : 150 |
ASRS Report | 231376 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : atp |
Events | |
Anomaly | non adherence : published procedure other anomaly |
Independent Detector | aircraft equipment other aircraft equipment : unspecified |
Resolutory Action | flight crew : regained aircraft control |
Consequence | Other |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
Flight XXX psp to las to sgu to slc with 30 passenger, crew of 3 plus an observer. Just under gross weight. Wind, my recollection 310 degrees at 8 KTS. Took off on runway 34 at sgu. Runway has an upslope. After calling for gear up and reaching an altitude of 500 ft plus began right turn to enter the holding pattern to climb to 12000 ft. Turn commenced in the clouds and at start of turn got stick shaker mechanical warning. Leveled wings, lowered pitch attitude and recovered with no loss of altitude. Copilot assisted by call outs on pitch attitude and he helped retrim aircraft as I lowered the pitch. V2 for takeoff was 112 KTS (my recollection). Pitch attitude prior to above corrections was 12 to 15 degrees and airspeed V2 minus 5 to 7. Appears after the fact trim setting possibly in error and deterioration of airspeed and increase in pitch temporarily not noted by pilots when going from visual to IMC conditions. Recommend to use flight director go around mode (7 degree pitch up and wings level) on all instrument IFR departures, especially at night or reduced visibility. Also no turns commenced prior to verification of pitch attitude and airspeed V2 plus 10 or greater.
Original NASA ASRS Text
Title: LTT HAS STICK SHAKER ACTIVATE ON ENTERING IMC IN CLB AND TURN.
Narrative: FLT XXX PSP TO LAS TO SGU TO SLC WITH 30 PAX, CREW OF 3 PLUS AN OBSERVER. JUST UNDER GROSS WT. WIND, MY RECOLLECTION 310 DEGS AT 8 KTS. TOOK OFF ON RWY 34 AT SGU. RWY HAS AN UPSLOPE. AFTER CALLING FOR GEAR UP AND REACHING AN ALT OF 500 FT PLUS BEGAN R TURN TO ENTER THE HOLDING PATTERN TO CLB TO 12000 FT. TURN COMMENCED IN THE CLOUDS AND AT START OF TURN GOT STICK SHAKER MECHANICAL WARNING. LEVELED WINGS, LOWERED PITCH ATTITUDE AND RECOVERED WITH NO LOSS OF ALT. COPLT ASSISTED BY CALL OUTS ON PITCH ATTITUDE AND HE HELPED RETRIM ACFT AS I LOWERED THE PITCH. V2 FOR TKOF WAS 112 KTS (MY RECOLLECTION). PITCH ATTITUDE PRIOR TO ABOVE CORRECTIONS WAS 12 TO 15 DEGS AND AIRSPD V2 MINUS 5 TO 7. APPEARS AFTER THE FACT TRIM SETTING POSSIBLY IN ERROR AND DETERIORATION OF AIRSPD AND INCREASE IN PITCH TEMPORARILY NOT NOTED BY PLTS WHEN GOING FROM VISUAL TO IMC CONDITIONS. RECOMMEND TO USE FLT DIRECTOR GAR MODE (7 DEG PITCH UP AND WINGS LEVEL) ON ALL INSTRUMENT IFR DEPS, ESPECIALLY AT NIGHT OR REDUCED VISIBILITY. ALSO NO TURNS COMMENCED PRIOR TO VERIFICATION OF PITCH ATTITUDE AND AIRSPD V2 PLUS 10 OR GREATER.
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.