Air carrier large transport aborts takeoff account lack of acceleration.

Attributes
ACN	237936
Time
Date	199304
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	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : takeoff other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 120 flight time total : 7100 flight time type : 3200
ASRS Report	237936
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	flight crew : rejected takeoff
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

While taxiing out for takeoff runway 36R dfw, tower reported to us that another aircraft reported seeing smoke from our right main gear area. Since we had a new brake on the #4 wheel, we disregarded report and told tower that we had a new brake and that new brakes often produce smoke until the protective coating burns away. After being cleared for takeoff captain applied takeoff power and then discontinued takeoff at approximately 60 KTS because of a 'dragging, no accelerating' feeling. Returned to gate for maintenance and maintenance personnel corrected problem as follows: 'bled all 4 main brakes. Found excessive air in #4 main. Jacked both gears and made precautionary check. All brakes check ok. Ok for service.' while taxiing back to gate we did not set parking brake and we warned maintenance personnel to approach with care. After maintenance, we continued trip and all was normal

Original NASA ASRS Text

Title: ACR LGT ABORTS TKOF ACCOUNT LACK OF ACCELERATION.

Narrative: WHILE TAXIING OUT FOR TKOF RWY 36R DFW, TWR RPTED TO US THAT ANOTHER ACFT RPTED SEEING SMOKE FROM OUR R MAIN GEAR AREA. SINCE WE HAD A NEW BRAKE ON THE #4 WHEEL, WE DISREGARDED RPT AND TOLD TWR THAT WE HAD A NEW BRAKE AND THAT NEW BRAKES OFTEN PRODUCE SMOKE UNTIL THE PROTECTIVE COATING BURNS AWAY. AFTER BEING CLRED FOR TKOF CAPT APPLIED TKOF PWR AND THEN DISCONTINUED TKOF AT APPROX 60 KTS BECAUSE OF A 'DRAGGING, NO ACCELERATING' FEELING. RETURNED TO GATE FOR MAINT AND MAINT PERSONNEL CORRECTED PROB AS FOLLOWS: 'BLED ALL 4 MAIN BRAKES. FOUND EXCESSIVE AIR IN #4 MAIN. JACKED BOTH GEARS AND MADE PRECAUTIONARY CHK. ALL BRAKES CHK OK. OK FOR SVC.' WHILE TAXIING BACK TO GATE WE DID NOT SET PARKING BRAKE AND WE WARNED MAINT PERSONNEL TO APCH WITH CARE. AFTER MAINT, WE CONTINUED TRIP AND ALL WAS NORMAL

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.