B757 and B767 APU surge valve filters were installed in non compliance of a service bulletin. Problem corrected by filter purchase from another vendor.

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Attributes
ACN	611838
Time
Date	200403
Day	Fri
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	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
Experience	maintenance technician : 12
ASRS Report	611838
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : company policies non adherence : far non adherence : published procedure
Independent Detector	other other : person 1
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : manuals performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Chart Or Publication Company
Primary Problem	Maintenance Human Performance

Narrative:

1) I have been getting old style filters manufacturer #111790-2 labeled as new style filters manufacturer #856504-2. It's a compliance issue. I ordered all that we have in stock (10) and 8 were the incorrect filters. Now that we have no filters, we need new filters. I also filed the form link and have not heard from anyone. Your help is requested. Could you also get some more filters? I'm job stopping 1 valve today for the above reason. 2) out stations need to be aware of the differences of filters since there are no numbers on filter. 3) received oem and compared it to the repaired ones. Researched cmm and found sb (service bulletin) on filters. 4) send ama out to line stations. Train shipping of difference. Put part number on filter. Tell repair station of change. Callback conversation with reporter revealed the following information: reporter stated the incorrect surge valve filters were replaced almost immediately when the problem was discovered. The reporter said the required filters were obtained from an outside vendor and all surge valves in stock and in aircraft were replaced.

Original NASA ASRS Text

Title: B757 AND B767 APU SURGE VALVE FILTERS WERE INSTALLED IN NON COMPLIANCE OF A SVC BULLETIN. PROB CORRECTED BY FILTER PURCHASE FROM ANOTHER VENDOR.

Narrative: 1) I HAVE BEEN GETTING OLD STYLE FILTERS MANUFACTURER #111790-2 LABELED AS NEW STYLE FILTERS MANUFACTURER #856504-2. IT'S A COMPLIANCE ISSUE. I ORDERED ALL THAT WE HAVE IN STOCK (10) AND 8 WERE THE INCORRECT FILTERS. NOW THAT WE HAVE NO FILTERS, WE NEED NEW FILTERS. I ALSO FILED THE FORM LINK AND HAVE NOT HEARD FROM ANYONE. YOUR HELP IS REQUESTED. COULD YOU ALSO GET SOME MORE FILTERS? I'M JOB STOPPING 1 VALVE TODAY FOR THE ABOVE REASON. 2) OUT STATIONS NEED TO BE AWARE OF THE DIFFERENCES OF FILTERS SINCE THERE ARE NO NUMBERS ON FILTER. 3) RECEIVED OEM AND COMPARED IT TO THE REPAIRED ONES. RESEARCHED CMM AND FOUND SB (SVC BULLETIN) ON FILTERS. 4) SEND AMA OUT TO LINE STATIONS. TRAIN SHIPPING OF DIFFERENCE. PUT PART NUMBER ON FILTER. TELL REPAIR STATION OF CHANGE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THE INCORRECT SURGE VALVE FILTERS WERE REPLACED ALMOST IMMEDIATELY WHEN THE PROB WAS DISCOVERED. THE RPTR SAID THE REQUIRED FILTERS WERE OBTAINED FROM AN OUTSIDE VENDOR AND ALL SURGE VALVES IN STOCK AND IN ACFT WERE REPLACED.

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.