Ground evacuate/evacuation without injury.

Attributes
ACN	307490
Time
Date	199506
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : atl
State Reference	GA
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	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground other : taxi 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 : 173 flight time total : 16765 flight time type : 12704
ASRS Report	307490
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	flight crew : declared emergency other
Consequence	Other Other
Supplementary
Primary Problem	Aircraft

Narrative:

As the aircraft was maneuvered onto runway 26L, in atl, one of the flight attendants reported smoke in the aft cabin. The tower was informed that we needed to clear the runway. Tower cleared us to continue across the runway and onto taxiway 'B.' the aircraft was stopped and one of the flight attendants reported the smoke was getting thick and requested the oxygen masks. After ruling out the presence of fire, the masks were deployed. An emergency was declared, the emergency equipment was requested and the evacuate/evacuation checklist completed. I ordered an evacuate/evacuation through the forward-most doors (52 passenger, 7 crew). The evacuate/evacuation was completed without injury or further incident. A significant hydraulic leak in the lower, central area of the fuselage was the cause of this problem. This fluid came in contact with hot areas of the APU, vaporized, and was pulled into the cabin as visible fumes. After shutdown of engines, APU, etc, the condition stabilized during the evacuate/evacuation. The fumes were not eliminated, however, until an aft door was later opened. Some flight attendants and passenger reported relief from the oxygen masks briefly, before moving forward and exiting the aircraft.

Original NASA ASRS Text

Title: GND EVAC WITHOUT INJURY.

Narrative: AS THE ACFT WAS MANEUVERED ONTO RWY 26L, IN ATL, ONE OF THE FLT ATTENDANTS RPTED SMOKE IN THE AFT CABIN. THE TWR WAS INFORMED THAT WE NEEDED TO CLR THE RWY. TWR CLRED US TO CONTINUE ACROSS THE RWY AND ONTO TXWY 'B.' THE ACFT WAS STOPPED AND ONE OF THE FLT ATTENDANTS RPTED THE SMOKE WAS GETTING THICK AND REQUESTED THE OXYGEN MASKS. AFTER RULING OUT THE PRESENCE OF FIRE, THE MASKS WERE DEPLOYED. AN EMER WAS DECLARED, THE EMER EQUIP WAS REQUESTED AND THE EVAC CHKLIST COMPLETED. I ORDERED AN EVAC THROUGH THE FORWARD-MOST DOORS (52 PAX, 7 CREW). THE EVAC WAS COMPLETED WITHOUT INJURY OR FURTHER INCIDENT. A SIGNIFICANT HYD LEAK IN THE LOWER, CENTRAL AREA OF THE FUSELAGE WAS THE CAUSE OF THIS PROB. THIS FLUID CAME IN CONTACT WITH HOT AREAS OF THE APU, VAPORIZED, AND WAS PULLED INTO THE CABIN AS VISIBLE FUMES. AFTER SHUTDOWN OF ENGS, APU, ETC, THE CONDITION STABILIZED DURING THE EVAC. THE FUMES WERE NOT ELIMINATED, HOWEVER, UNTIL AN AFT DOOR WAS LATER OPENED. SOME FLT ATTENDANTS AND PAX RPTED RELIEF FROM THE OXYGEN MASKS BRIEFLY, BEFORE MOVING FORWARD AND EXITING THE ACFT.

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.