B737-100 had incorrect circuit breaker installed in air data computer circuit.

Attributes
ACN	347523
Time
Date	199609
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bil
State Reference	MT
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-100
Operating Under FAR Part	Part 121
Flight Phase	other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel
Qualification	other other : other
ASRS Report	347523
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

Maintenance action requested, air carrier B737, per maintenance control. #1 circuit breaker inoperative on #1 air data computer (air data computer). Controller authority/authorized removal of #2 air data computer circuit breaker which is non functional, on B737-100 aircraft, and install in #1 position. The incorrect breaker was just above the #2 ane breaker which was to have been removed. Aircraft was flown to den where it was discovered that the incorrect circuit breaker was installed. Corrective action in den by air carrier mechanic.

Original NASA ASRS Text

Title: B737-100 HAD INCORRECT CIRCUIT BREAKER INSTALLED IN AIR DATA COMPUTER CIRCUIT.

Narrative: MAINT ACTION REQUESTED, ACR B737, PER MAINT CTL. #1 CIRCUIT BREAKER INOP ON #1 AIR DATA COMPUTER (ADC). CTLR AUTH REMOVAL OF #2 ADC CIRCUIT BREAKER WHICH IS NON FUNCTIONAL, ON B737-100 ACFT, AND INSTALL IN #1 POS. THE INCORRECT BREAKER WAS JUST ABOVE THE #2 ANE BREAKER WHICH WAS TO HAVE BEEN REMOVED. ACFT WAS FLOWN TO DEN WHERE IT WAS DISCOVERED THAT THE INCORRECT CIRCUIT BREAKER WAS INSTALLED. CORRECTIVE ACTION IN DEN BY ACR MECH.

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.