An airbus 320 was dispatched in non compliance with 2 deferred items that were in conflict with the ...

Attributes
ACN	571250
Time
Date	200301
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	ground : parked ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel
Qualification	other
ASRS Report	571250
Person 2
Affiliation	company : air carrier
Function	oversight : supervisor
Events
Anomaly	aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : far non adherence : published procedure
Independent Detector	other other : person 2
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : manuals contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Flight Crew Human Performance Chart Or Publication Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance
Situations
Publication	Minimum Equipment List

Narrative:

Prior to departure, maintenance called to defer #2 pack 5 mins prior to departure. After a quick check of original plan and the operation item (2151B), I ok'ed the deferral. I then sent an ACARS to crew information amend release 1 to show '#2 pack inoperative.' maintenance called me back at about XA18Z to inform me that they couldn't defer that item due to an item already on that aircraft. I explained that I showed the only other item was a 'no autoland annunciator failure.' she then said it was deferral X and noticed deferral was 'on engine shutdown, vent avionics system.' she said both of those items could not be deferred and plane was to return. A look at the monitoring record showed the flight went airborne at XA16. I said we were airborne and I would get back. I sent an ACARS to crew stating the issue and they replied with a 'call me.' I patched the crew in with maintenance captain that returning back to ZZZ through freezing precipitation would not be better than continuing to destination. Captain explained all was normal, cabin pressure differential ok at 7.7 and cabin altitude was at 5700 ft. Flight continued to ZZZ1 and the eventual flight and landing were uneventful.

Original NASA ASRS Text

Title: AN AIRBUS 320 WAS DISPATCHED IN NON COMPLIANCE WITH 2 DEFERRED ITEMS THAT WERE IN CONFLICT WITH THE MEL.

Narrative: PRIOR TO DEP, MAINT CALLED TO DEFER #2 PACK 5 MINS PRIOR TO DEP. AFTER A QUICK CHK OF ORIGINAL PLAN AND THE OP ITEM (2151B), I OK'ED THE DEFERRAL. I THEN SENT AN ACARS TO CREW INFO AMEND RELEASE 1 TO SHOW '#2 PACK INOP.' MAINT CALLED ME BACK AT ABOUT XA18Z TO INFORM ME THAT THEY COULDN'T DEFER THAT ITEM DUE TO AN ITEM ALREADY ON THAT ACFT. I EXPLAINED THAT I SHOWED THE ONLY OTHER ITEM WAS A 'NO AUTOLAND ANNUNCIATOR FAILURE.' SHE THEN SAID IT WAS DEFERRAL X AND NOTICED DEFERRAL WAS 'ON ENG SHUTDOWN, VENT AVIONICS SYS.' SHE SAID BOTH OF THOSE ITEMS COULD NOT BE DEFERRED AND PLANE WAS TO RETURN. A LOOK AT THE MONITORING RECORD SHOWED THE FLT WENT AIRBORNE AT XA16. I SAID WE WERE AIRBORNE AND I WOULD GET BACK. I SENT AN ACARS TO CREW STATING THE ISSUE AND THEY REPLIED WITH A 'CALL ME.' I PATCHED THE CREW IN WITH MAINT CAPT THAT RETURNING BACK TO ZZZ THROUGH FREEZING PRECIP WOULD NOT BE BETTER THAN CONTINUING TO DEST. CAPT EXPLAINED ALL WAS NORMAL, CABIN PRESSURE DIFFERENTIAL OK AT 7.7 AND CABIN ALT WAS AT 5700 FT. FLT CONTINUED TO ZZZ1 AND THE EVENTUAL FLT AND LNDG WERE UNEVENTFUL.

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.

An airbus 320 was dispatched in non compliance with 2 deferred items that were in conflict with the MEL.