A beech 400A in cruise at FL390 diverted due to ship's main battery temperature rising to maximum li...

Attributes
ACN	545122
Time
Date	200204
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cou.airport
State Reference	MO
Altitude	msl single value : 39000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc.artcc
Operator	general aviation : corporate
Make Model Name	Beechjet 400
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 11500 flight time type : 950
ASRS Report	545122
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

During cruise, I noted the battery temperature (N1 cad) had gone up to approximately 140 degrees (yellow zone). I continued to monitor the temperature and in approximately 2 mins the temperature rose to 160 degrees (red zone) and we performed checklist items. Battery off monitor temperature. The temperature continued to rise so we diverted to columbia and requested immediate descent for landing. I consider this a precautionary landing to avoid a potential emergency I requested an ILS to runway 20. I requested that the fire department meet the aircraft and remove the battery. The battery was hot when we parked and the fire department was great in their response.

Original NASA ASRS Text

Title: A BEECH 400A IN CRUISE AT FL390 DIVERTED DUE TO SHIP'S MAIN BATTERY TEMP RISING TO MAX LIMIT.

Narrative: DURING CRUISE, I NOTED THE BATTERY TEMP (N1 CAD) HAD GONE UP TO APPROX 140 DEGS (YELLOW ZONE). I CONTINUED TO MONITOR THE TEMP AND IN APPROX 2 MINS THE TEMP ROSE TO 160 DEGS (RED ZONE) AND WE PERFORMED CHKLIST ITEMS. BATTERY OFF MONITOR TEMP. THE TEMP CONTINUED TO RISE SO WE DIVERTED TO COLUMBIA AND REQUESTED IMMEDIATE DSCNT FOR LNDG. I CONSIDER THIS A PRECAUTIONARY LNDG TO AVOID A POTENTIAL EMER I REQUESTED AN ILS TO RWY 20. I REQUESTED THAT THE FIRE DEPT MEET THE ACFT AND REMOVE THE BATTERY. THE BATTERY WAS HOT WHEN WE PARKED AND THE FIRE DEPT WAS GREAT IN THEIR RESPONSE.

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.

A beech 400A in cruise at FL390 diverted due to ship's main battery temperature rising to maximum limit.