EA30 crew had aircraft nicad battery thermal runaway. Flight crew exceeded 250 KTS below 10000 ft MS...

Attributes
ACN	420942
Time
Date	199811
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : mem airport : mem
State Reference	TN
Altitude	msl bound lower : 9800 msl bound upper : 16000
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Controlling Facilities	tracon : mem tower : lax
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude other other
Route In Use	departure 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 : 180 flight time total : 8000 flight time type : 600
ASRS Report	420942
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 120 flight time total : 5000 flight time type : 700
ASRS Report	420409
Events
Anomaly	aircraft equipment problem : critical non adherence : far other anomaly other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	controller : issued new clearance flight crew : declared emergency none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

On climb out both of us noticed an unusual odor. Aircraft was empty. #3 battery showed amber abnormal indication. First officer radar picture wad distorted by horizontal amber line. On initial climb through 14800 ft to 16000 ft, told ATC we wanted to remain at 16000 ft and return to memphis. In heat of battle, exceeded 250 ft below 10000 ft for approximately 200 ft as misread airspeed as 250 KTS when actually doing 270 KTS. Supplemental information from acn 420409: after takeoff, both pilots noticed a very strong, sudden and unusual smell in the cockpit. This was accompanied by unusual battery ECAM indications and first officer's navigation display showed unusual indication concurrently (WX radar problem -- probably unrelated). We turned around and landed at memphis international.

Original NASA ASRS Text

Title: EA30 CREW HAD ACFT NICAD BATTERY THERMAL RUNAWAY. FLC EXCEEDED 250 KTS BELOW 10000 FT MSL.

Narrative: ON CLBOUT BOTH OF US NOTICED AN UNUSUAL ODOR. ACFT WAS EMPTY. #3 BATTERY SHOWED AMBER ABNORMAL INDICATION. FO RADAR PICTURE WAD DISTORTED BY HORIZ AMBER LINE. ON INITIAL CLB THROUGH 14800 FT TO 16000 FT, TOLD ATC WE WANTED TO REMAIN AT 16000 FT AND RETURN TO MEMPHIS. IN HEAT OF BATTLE, EXCEEDED 250 FT BELOW 10000 FT FOR APPROX 200 FT AS MISREAD AIRSPD AS 250 KTS WHEN ACTUALLY DOING 270 KTS. SUPPLEMENTAL INFO FROM ACN 420409: AFTER TKOF, BOTH PLTS NOTICED A VERY STRONG, SUDDEN AND UNUSUAL SMELL IN THE COCKPIT. THIS WAS ACCOMPANIED BY UNUSUAL BATTERY ECAM INDICATIONS AND FO'S NAV DISPLAY SHOWED UNUSUAL INDICATION CONCURRENTLY (WX RADAR PROB -- PROBABLY UNRELATED). WE TURNED AROUND AND LANDED AT MEMPHIS INTL.

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.

EA30 crew had aircraft nicad battery thermal runaway. Flight crew exceeded 250 KTS below 10000 ft MSL.