EMB120 low speed abort at smf.

Attributes
ACN	436830
Time
Date	199905
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : smf.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Brasilia EMB-120 All Series
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time last 90 days : 270 flight time total : 10500 flight time type : 1200
ASRS Report	436830
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe ground encounters other non adherence : company policies other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : trim warning other flight crewa
Resolutory Action	controller : issued new clearance flight crew : rejected takeoff
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Upon staring the takeoff roll from smf runway 34L, we got a takeoff aural warning for the trim on the elevator trim tab. We aborted the takeoff at about 40 KTS. The events that led to this abort were that my first officer that I normally fly with was gone for this trip and I was assigned a new first officer for this trip sequence. The new first officer prepared the manifest voluntarily. I conducted the taxi checklist. His complacency and relaxed attitude resulted in his missing the trim setting 3 times in the SOP. He was not following the flows or procedures outlined in the SOP. I failed in my duties to watch him conduct the required checklists. I was in the 'mode' of flying with my normal first officer and assumed that this new first officer was up to PAR with my regularly assigned first officer. I was wrong, which was evident in his conduct over the next few days.

Original NASA ASRS Text

Title: EMB120 LOW SPD ABORT AT SMF.

Narrative: UPON STARING THE TKOF ROLL FROM SMF RWY 34L, WE GOT A TKOF AURAL WARNING FOR THE TRIM ON THE ELEVATOR TRIM TAB. WE ABORTED THE TKOF AT ABOUT 40 KTS. THE EVENTS THAT LED TO THIS ABORT WERE THAT MY FO THAT I NORMALLY FLY WITH WAS GONE FOR THIS TRIP AND I WAS ASSIGNED A NEW FO FOR THIS TRIP SEQUENCE. THE NEW FO PREPARED THE MANIFEST VOLUNTARILY. I CONDUCTED THE TAXI CHKLIST. HIS COMPLACENCY AND RELAXED ATTITUDE RESULTED IN HIS MISSING THE TRIM SETTING 3 TIMES IN THE SOP. HE WAS NOT FOLLOWING THE FLOWS OR PROCS OUTLINED IN THE SOP. I FAILED IN MY DUTIES TO WATCH HIM CONDUCT THE REQUIRED CHKLISTS. I WAS IN THE 'MODE' OF FLYING WITH MY NORMAL FO AND ASSUMED THAT THIS NEW FO WAS UP TO PAR WITH MY REGULARLY ASSIGNED FO. I WAS WRONG, WHICH WAS EVIDENT IN HIS CONDUCT OVER THE NEXT FEW DAYS.

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.