37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 330038 |
Time | |
Date | 199603 |
Day | Thu |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : dfw |
State Reference | TX |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Operator | common carrier : air carrier |
Make Model Name | ATR 72 |
Operating Under FAR Part | Part 121 |
Flight Phase | climbout : takeoff |
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 : 210 |
ASRS Report | 330038 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : commercial pilot : instrument |
Events | |
Anomaly | other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | none taken : unable |
Consequence | Other |
Supplementary | |
Primary Problem | Airport |
Air Traffic Incident | other |
Situations | |
Airport | other physical facility |
Narrative:
Runway 31L at dfw has several 'bumps' in it for the 1ST couple thousand ft. Your aircraft nose gear will bottom out during takeoff and the aircraft will bounce up and down violently. Several of our capts are talking about starting to refuse takeoffs on runway 31L in windy conditions. I agree! That runway is unsafe for takeoffs. My first officer and I discussed our takeoff on runway 31L and we agreed that we would relieve pressure on the nose gear during the takeoff run/roll by pulling back on the yoke, slightly. First officer did this during our takeoff run. Between us bouncing down the runway and the first officer applying too much back pressure on the yoke, we bounced right into an early rotation on takeoff. Airspeed was about 3-5 KIAS before V1 (5-7 KIAS before rotation speed) -- very unsafe situation. I'm going to make all takeoff on that runway from now on. Can you send out an alert on runway 31L?
Original NASA ASRS Text
Title: RWY 31L AT DFW IS TOO BUMPY.
Narrative: RWY 31L AT DFW HAS SEVERAL 'BUMPS' IN IT FOR THE 1ST COUPLE THOUSAND FT. YOUR ACFT NOSE GEAR WILL BOTTOM OUT DURING TKOF AND THE ACFT WILL BOUNCE UP AND DOWN VIOLENTLY. SEVERAL OF OUR CAPTS ARE TALKING ABOUT STARTING TO REFUSE TKOFS ON RWY 31L IN WINDY CONDITIONS. I AGREE! THAT RWY IS UNSAFE FOR TKOFS. MY FO AND I DISCUSSED OUR TKOF ON RWY 31L AND WE AGREED THAT WE WOULD RELIEVE PRESSURE ON THE NOSE GEAR DURING THE TKOF RUN/ROLL BY PULLING BACK ON THE YOKE, SLIGHTLY. FO DID THIS DURING OUR TKOF RUN. BTWN US BOUNCING DOWN THE RWY AND THE FO APPLYING TOO MUCH BACK PRESSURE ON THE YOKE, WE BOUNCED RIGHT INTO AN EARLY ROTATION ON TKOF. AIRSPD WAS ABOUT 3-5 KIAS BEFORE V1 (5-7 KIAS BEFORE ROTATION SPD) -- VERY UNSAFE SIT. I'M GOING TO MAKE ALL TKOF ON THAT RWY FROM NOW ON. CAN YOU SEND OUT AN ALERT ON RWY 31L?
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.