Hydraulic brake line leak causes smoke after arrival at the gate.

Attributes
ACN	196758
Time
Date	199112
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sto
State Reference	FO
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	Widebody, Low Wing, 4 Turbojet Eng
Navigation In Use	Other
Flight Phase	ground : parked ground other : taxi landing 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 : 120 flight time total : 10500 flight time type : 5500
ASRS Report	196758
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	flight crew : declared emergency none taken : detected after the fact other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

On landing the automatic brakes 'grabbed' more than usual and I deactivated the automatic brakes and due to the long runway (11000 ft) I used min brakes. Taxi was normal at 570000 pounds (maximum is 585000). Brake temperatures indicated normal for landing. Taxi time was 6 mins to the gate. At the gate the adjacent airplane reported of our airplane 'landing gear fire.' passenger were instructed to deplane immediately via jetway. Authorities sent fire equipment and no extinguishing was required. Momentarily our mechanic reported that only smoke was observed on #6 brake and all brake temperatures were normal. Closer inspection revealed #6 brake 'right gear' fused to the wheel and the reason for smoke was due to hydraulic fluid of one of the #6 brake pistons. I could evaluate the situation through the terminal's glasses, since they were acting like a mirror. No fire or smoke was observed and crew was able to see the maintenance group around the landing gear and wheel well area inspecting the brakes, indicating that there was no danger.

Original NASA ASRS Text

Title: HYD BRAKE LINE LEAK CAUSES SMOKE AFTER ARR AT THE GATE.

Narrative: ON LNDG THE AUTOMATIC BRAKES 'GRABBED' MORE THAN USUAL AND I DEACTIVATED THE AUTO BRAKES AND DUE TO THE LONG RWY (11000 FT) I USED MIN BRAKES. TAXI WAS NORMAL AT 570000 POUNDS (MAX IS 585000). BRAKE TEMPS INDICATED NORMAL FOR LNDG. TAXI TIME WAS 6 MINS TO THE GATE. AT THE GATE THE ADJACENT AIRPLANE RPTED OF OUR AIRPLANE 'LNDG GEAR FIRE.' PAX WERE INSTRUCTED TO DEPLANE IMMEDIATELY VIA JETWAY. AUTHORITIES SENT FIRE EQUIP AND NO EXTINGUISHING WAS REQUIRED. MOMENTARILY OUR MECH RPTED THAT ONLY SMOKE WAS OBSERVED ON #6 BRAKE AND ALL BRAKE TEMPS WERE NORMAL. CLOSER INSPECTION REVEALED #6 BRAKE 'R GEAR' FUSED TO THE WHEEL AND THE REASON FOR SMOKE WAS DUE TO HYD FLUID OF ONE OF THE #6 BRAKE PISTONS. I COULD EVALUATE THE SITUATION THROUGH THE TERMINAL'S GLASSES, SINCE THEY WERE ACTING LIKE A MIRROR. NO FIRE OR SMOKE WAS OBSERVED AND CREW WAS ABLE TO SEE THE MAINT GROUP AROUND THE LNDG GEAR AND WHEEL WELL AREA INSPECTING THE BRAKES, INDICATING THAT THERE WAS NO DANGER.

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.