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|
Attributes | |
ACN | 272046 |
Time | |
Date | 199405 |
Day | Wed |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : sfo |
State Reference | CA |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tower : btv |
Operator | common carrier : air carrier |
Make Model Name | B737-400 |
Operating Under FAR Part | Part 121 |
Navigation In Use | Other Other |
Flight Phase | climbout : takeoff other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Experience | flight time last 90 days : 210 flight time total : 12000 flight time type : 2500 |
ASRS Report | 272046 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : instrument pilot : commercial |
Events | |
Anomaly | aircraft equipment problem : critical non adherence : published procedure non adherence other other anomaly other |
Independent Detector | aircraft equipment other aircraft equipment : unspecified |
Resolutory Action | flight crew : rejected takeoff other |
Consequence | Other |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
737-300 and 737-300 leading edge takeoff flaps 1 degree, 5 degrees, 15 degrees 737-400 takeoff flaps 5 degrees, 15 degrees. Flight in question 737-400. Taxi out weight and balance on ACARS flaps were set flaps 5 degrees -- company procedures. First officer noted high takeoff speeds/weight. Said 'we need to use flaps 1 degree.' we used runway 1 at sfo and he misread runway 1 and speeds as flaps 1 degree and v-spds, further reinforcing in his mind flaps 1 degree being correct. Neither one of us remembered at this time the 400 series restr. While taxiing out I noted the passenger total, fuel and gross weight and agreed flaps 1 degree correct. Checklist completed. Takeoff power set, takeoff warning sounded. Aborted takeoff, checked confign -- all appeared normal. Returned to gate and wrote up what we thought was wrong in aircraft log. Maintenance thought it might be stabilizer trim switch. Checked, cleaned switch. Did takeoff warning check, this time with flaps 5 degrees -- all was normal. Then I remembered the 400 restr of flaps 5 degrees/15 degrees and brought it to the attention of the first officer. Possible solutions: placard by the flap gauge stating flap 5 degrees/15 degrees only. A less busy ACARS flap setting v-spd page -- easier to read, less chance of errors. A short list of differences of the 400 to review prior to flight. Stop aircraft and both pilots check ACARS takeoff data to be in agreement with correct takeoff data flaps!
Original NASA ASRS Text
Title: TKOF ABORTED.
Narrative: 737-300 AND 737-300 LEADING EDGE TKOF FLAPS 1 DEG, 5 DEGS, 15 DEGS 737-400 TKOF FLAPS 5 DEGS, 15 DEGS. FLT IN QUESTION 737-400. TAXI OUT WT AND BAL ON ACARS FLAPS WERE SET FLAPS 5 DEGS -- COMPANY PROCS. FO NOTED HIGH TKOF SPDS/WT. SAID 'WE NEED TO USE FLAPS 1 DEG.' WE USED RWY 1 AT SFO AND HE MISREAD RWY 1 AND SPDS AS FLAPS 1 DEG AND V-SPDS, FURTHER REINFORCING IN HIS MIND FLAPS 1 DEG BEING CORRECT. NEITHER ONE OF US REMEMBERED AT THIS TIME THE 400 SERIES RESTR. WHILE TAXIING OUT I NOTED THE PAX TOTAL, FUEL AND GROSS WT AND AGREED FLAPS 1 DEG CORRECT. CHKLIST COMPLETED. TKOF PWR SET, TKOF WARNING SOUNDED. ABORTED TKOF, CHKED CONFIGN -- ALL APPEARED NORMAL. RETURNED TO GATE AND WROTE UP WHAT WE THOUGHT WAS WRONG IN ACFT LOG. MAINT THOUGHT IT MIGHT BE STABILIZER TRIM SWITCH. CHKED, CLEANED SWITCH. DID TKOF WARNING CHK, THIS TIME WITH FLAPS 5 DEGS -- ALL WAS NORMAL. THEN I REMEMBERED THE 400 RESTR OF FLAPS 5 DEGS/15 DEGS AND BROUGHT IT TO THE ATTN OF THE FO. POSSIBLE SOLUTIONS: PLACARD BY THE FLAP GAUGE STATING FLAP 5 DEGS/15 DEGS ONLY. A LESS BUSY ACARS FLAP SETTING V-SPD PAGE -- EASIER TO READ, LESS CHANCE OF ERRORS. A SHORT LIST OF DIFFERENCES OF THE 400 TO REVIEW PRIOR TO FLT. STOP ACFT AND BOTH PLTS CHK ACARS TKOF DATA TO BE IN AGREEMENT WITH CORRECT TKOF DATA FLAPS!
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.