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A B737-700 crew rejected a takeoff because at 80 KTS the airspeed disagree flag was visible. Previously; a 50 KT airspeed difference was noted in flight.
| Attributes | |
| ACN | 809596 |
| Time | |
| Date | 200810 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : takeoff roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 210 flight time type : 750 |
| ASRS Report | 809596 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 180 flight time type : 5000 |
| ASRS Report | 809595 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : rejected takeoff |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Prior to pushback; the captain and I discussed that the aircraft's logbook showed a recent history of problems; including a recent airspeed disagreement in-flight of 50 KIAS. During takeoff; both airspeed indicators came alive normally. Upon making the 80 KIAS call; the captain pointed out an asi disagreement flag and rejected the takeoff. When the thrust levers were brought to idle; rejected takeoff braking activated. As quickly as possible; the captain deactivated the rejected takeoff allowing smooth braking and we exited the runway at taxiway V. After exiting the runway; flight attendants reported that a passenger had been leaning forward during takeoff and hit her head on the seat in front of her during the abort. Flight attendants reported that the passenger's neck hurt; eyes were watering; and felt nauseated. We informed operations and asked paramedics to meet us at the gate.
Original NASA ASRS Text
Title: A B737-700 CREW REJECTED A TKOF BECAUSE AT 80 KTS THE AIRSPEED DISAGREE FLAG WAS VISIBLE. PREVIOUSLY; A 50 KT AIRSPEED DIFFERENCE WAS NOTED IN FLT.
Narrative: PRIOR TO PUSHBACK; THE CAPT AND I DISCUSSED THAT THE ACFT'S LOGBOOK SHOWED A RECENT HISTORY OF PROBS; INCLUDING A RECENT AIRSPD DISAGREEMENT INFLT OF 50 KIAS. DURING TKOF; BOTH AIRSPD INDICATORS CAME ALIVE NORMALLY. UPON MAKING THE 80 KIAS CALL; THE CAPT POINTED OUT AN ASI DISAGREEMENT FLAG AND REJECTED THE TKOF. WHEN THE THRUST LEVERS WERE BROUGHT TO IDLE; RTO BRAKING ACTIVATED. AS QUICKLY AS POSSIBLE; THE CAPT DEACTIVATED THE RTO ALLOWING SMOOTH BRAKING AND WE EXITED THE RWY AT TXWY V. AFTER EXITING THE RWY; FLT ATTENDANTS RPTED THAT A PAX HAD BEEN LEANING FORWARD DURING TKOF AND HIT HER HEAD ON THE SEAT IN FRONT OF HER DURING THE ABORT. FLT ATTENDANTS RPTED THAT THE PAX'S NECK HURT; EYES WERE WATERING; AND FELT NAUSEATED. WE INFORMED OPS AND ASKED PARAMEDICS TO MEET US AT THE GATE.
Data retrieved from NASA's ASRS site as of May 2009 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.