An A320 during an overnight layover the contract technician doing the check is called away and leaves the main ship's battery switches in the on position.

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Attributes
ACN	711948
Time
Date	200610
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight
Flight Plan	IFR
Person 1
Affiliation	other
Function	maintenance : technician
Qualification	technician : airframe technician : inspection authority technician : powerplant
Experience	maintenance lead technician : 11 maintenance technician : 14
ASRS Report	711948
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Maintenance Human Performance Chart Or Publication Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

While performing daily inspection checks to aircraft; I was on 5 hours of rest in 40 hours due to scheduling and knew that the interruptions that I was receiving were going to make it a much longer night than I had planned on. During the inspection of the aircraft; I was receiving several calls from a GA pilot with a dead battery on his king air. He was in a hurry to leave the airport as the airfield was going to close during the night for runway maintenance. We do not carry a lot of maintenance items other than personal hand tools for the repair of aircraft so I was distraction in attempting to find a resolve for the pilot's dead battery. As a result of the phone call interruptions and in a hurry to assist the stranded pilot; and fatigue; I apparently neglected to check the aircraft battery switch to be in the 'off' position before leaving the flight deck; an item that I usually check twice. In the future I plan to focus on the task at hand and not accept the interruptions from second and third parties during the inspection of aircraft.

Original NASA ASRS Text

Title: AN A320 DURING AN OVERNIGHT LAYOVER THE CONTRACT TECHNICIAN DOING THE CHK IS CALLED AWAY AND LEAVES THE MAIN SHIP'S BATTERY SWITCHES IN THE ON POS.

Narrative: WHILE PERFORMING DAILY INSPECTION CHKS TO ACFT; I WAS ON 5 HRS OF REST IN 40 HRS DUE TO SCHEDULING AND KNEW THAT THE INTERRUPTIONS THAT I WAS RECEIVING WERE GOING TO MAKE IT A MUCH LONGER NIGHT THAN I HAD PLANNED ON. DURING THE INSPECTION OF THE ACFT; I WAS RECEIVING SEVERAL CALLS FROM A GA PLT WITH A DEAD BATTERY ON HIS KING AIR. HE WAS IN A HURRY TO LEAVE THE ARPT AS THE AIRFIELD WAS GOING TO CLOSE DURING THE NIGHT FOR RWY MAINT. WE DO NOT CARRY A LOT OF MAINT ITEMS OTHER THAN PERSONAL HAND TOOLS FOR THE REPAIR OF ACFT SO I WAS DISTR IN ATTEMPTING TO FIND A RESOLVE FOR THE PLT'S DEAD BATTERY. AS A RESULT OF THE PHONE CALL INTERRUPTIONS AND IN A HURRY TO ASSIST THE STRANDED PLT; AND FATIGUE; I APPARENTLY NEGLECTED TO CHK THE ACFT BATTERY SWITCH TO BE IN THE 'OFF' POS BEFORE LEAVING THE FLT DECK; AN ITEM THAT I USUALLY CHK TWICE. IN THE FUTURE I PLAN TO FOCUS ON THE TASK AT HAND AND NOT ACCEPT THE INTERRUPTIONS FROM SECOND AND THIRD PARTIES DURING THE INSPECTION OF ACFT.

Data retrieved from NASA's ASRS site as of January 2009 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.