An airbus 320-232 was dispatched with the static inverter system failing the system test.

Attributes
ACN	357081
Time
Date	199612
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	357081
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

In sum: mechanics relieved the earlier mechanics working on a static inverter test that had failed. Several parts were replaced to no avail. After the job was turned over the same system was reset (but would not reset and pass the test) several times for the mechanics. Miraculously the system was reset and dispatched by the mechanics that relieved the reporter. The aircraft failed to test at the next #2 service check. Clearly the desire to get rid of this problem without proper maintenance action caused this aircraft to fly without a properly functioning static inverter system for several days! As previously stated every attempt was made to reset thrust and reverser units in the east&east compartment. But as soon as a static inverter test was attempted, it failed. The reporter alleges that the tests were never redone after the thrust reverser units were reset.

Original NASA ASRS Text

Title: AN AIRBUS 320-232 WAS DISPATCHED WITH THE STATIC INVERTER SYS FAILING THE SYS TEST.

Narrative: IN SUM: MECHS RELIEVED THE EARLIER MECHS WORKING ON A STATIC INVERTER TEST THAT HAD FAILED. SEVERAL PARTS WERE REPLACED TO NO AVAIL. AFTER THE JOB WAS TURNED OVER THE SAME SYS WAS RESET (BUT WOULD NOT RESET AND PASS THE TEST) SEVERAL TIMES FOR THE MECHS. MIRACULOUSLY THE SYS WAS RESET AND DISPATCHED BY THE MECHS THAT RELIEVED THE RPTR. THE ACFT FAILED TO TEST AT THE NEXT #2 SVC CHK. CLRLY THE DESIRE TO GET RID OF THIS PROB WITHOUT PROPER MAINT ACTION CAUSED THIS ACFT TO FLY WITHOUT A PROPERLY FUNCTIONING STATIC INVERTER SYS FOR SEVERAL DAYS! AS PREVIOUSLY STATED EVERY ATTEMPT WAS MADE TO RESET THRUST AND REVERSER UNITS IN THE E&E COMPARTMENT. BUT AS SOON AS A STATIC INVERTER TEST WAS ATTEMPTED, IT FAILED. THE RPTR ALLEGES THAT THE TESTS WERE NEVER REDONE AFTER THE THRUST REVERSER UNITS WERE RESET.

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.