A DC9-50 had a third stage turbine blade check accomplished using the wrong job card.

Attributes
ACN	474540
Time
Date	200004
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-82
Operating Under FAR Part	Part 121
Flight Phase	ground : parked ground : maintenance
Flight Plan	IFR
Person 1
Function	maintenance : technician
Qualification	technician : powerplant technician : inspection authority technician : airframe
Experience	maintenance technician : 21
ASRS Report	474540
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : +
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation non adherence : published procedure
Independent Detector	other other : person 2
Resolutory Action	other
Consequence	other
Factors
Maintenance	contributing factor : work cards performance deficiency : inspection
Supplementary
Problem Areas	Company Chart Or Publication Aircraft
Primary Problem	Chart Or Publication
Situations
Publication	BLADE CHECK JOB CARD

Narrative:

Third stage turbine (low) needed a rechk, had a couple loose blades -- 3 less than 5 pounds torque. Work release called out wrong work card for job. Mechanic pulled up wrong work card for aircraft. DC9 and MD80 look very similar. DC9 has no identify as to what type aircraft it is to be used on. That was the card used for this job. Technique used to check looseness of blades is the same on both cards. A records clerk found that wrong job card had been used but the intent of the inspection was accomplished. A couple blades were found to be loose. The engine was changed as a result.

Original NASA ASRS Text

Title: A DC9-50 HAD A THIRD STAGE TURBINE BLADE CHK ACCOMPLISHED USING THE WRONG JOB CARD.

Narrative: THIRD STAGE TURBINE (LOW) NEEDED A RECHK, HAD A COUPLE LOOSE BLADES -- 3 LESS THAN 5 LBS TORQUE. WORK RELEASE CALLED OUT WRONG WORK CARD FOR JOB. MECH PULLED UP WRONG WORK CARD FOR ACFT. DC9 AND MD80 LOOK VERY SIMILAR. DC9 HAS NO IDENT AS TO WHAT TYPE ACFT IT IS TO BE USED ON. THAT WAS THE CARD USED FOR THIS JOB. TECHNIQUE USED TO CHK LOOSENESS OF BLADES IS THE SAME ON BOTH CARDS. A RECORDS CLERK FOUND THAT WRONG JOB CARD HAD BEEN USED BUT THE INTENT OF THE INSPECTION WAS ACCOMPLISHED. A COUPLE BLADES WERE FOUND TO BE LOOSE. THE ENG WAS CHANGED AS A RESULT.

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.