A B737-500 during heavy maintenance visit had work accomplished using incorrect job cards.

Attributes
ACN	354331
Time
Date	199612
Day	Mon
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
Controlling Facilities	tower : eri
Operator	common carrier : air carrier
Make Model Name	B737-500
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	354331
Person 2
Affiliation	company : air carrier
Function	other personnel other oversight : supervisor
Events
Anomaly	non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	other
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

I am a mechanic for an airline at ZZZ. We have been having difficulties with the job card paperwork for the B737 series aircraft. Myself and others have found the information incorrect on the written paper job cards used for performing maintenance. We are using another station's job cards for work at ZZZ because of their temporary overload situation. We found pin position 4 and 5 of connector reversed for the #2 engine on our current aircraft's pneumatic shutoff valve. There was some confusion regarding effectivity and pin position on this value for both the #1 and #2 engines on this aircraft. Although the problem was corrected on this aircraft, I am concerned about the previous aircraft I performed this check on, aircraft xx. We have been finding the job cards on this 737 incorrect in many areas, and incorrect and erroneous cards are encountered on a daily basis. This situation has been brought to the attention of supervisors and management, but the situation still exists.

Original NASA ASRS Text

Title: A B737-500 DURING HVY MAINT VISIT HAD WORK ACCOMPLISHED USING INCORRECT JOB CARDS.

Narrative: I AM A MECH FOR AN AIRLINE AT ZZZ. WE HAVE BEEN HAVING DIFFICULTIES WITH THE JOB CARD PAPERWORK FOR THE B737 SERIES ACFT. MYSELF AND OTHERS HAVE FOUND THE INFO INCORRECT ON THE WRITTEN PAPER JOB CARDS USED FOR PERFORMING MAINT. WE ARE USING ANOTHER STATION'S JOB CARDS FOR WORK AT ZZZ BECAUSE OF THEIR TEMPORARY OVERLOAD SIT. WE FOUND PIN POS 4 AND 5 OF CONNECTOR REVERSED FOR THE #2 ENG ON OUR CURRENT ACFT'S PNEUMATIC SHUTOFF VALVE. THERE WAS SOME CONFUSION REGARDING EFFECTIVITY AND PIN POS ON THIS VALUE FOR BOTH THE #1 AND #2 ENGINES ON THIS ACFT. ALTHOUGH THE PROB WAS CORRECTED ON THIS ACFT, I AM CONCERNED ABOUT THE PREVIOUS ACFT I PERFORMED THIS CHECK ON, ACFT XX. WE HAVE BEEN FINDING THE JOB CARDS ON THIS 737 INCORRECT IN MANY AREAS, AND INCORRECT AND ERRONEOUS CARDS ARE ENCOUNTERED ON A DAILY BASIS. THIS SITUATION HAS BEEN BROUGHT TO THE ATTENTION OF SUPERVISORS AND MANAGEMENT, BUT THE SITUATION STILL EXISTS.

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.