An MD80 technician working a lavatory floor board inspection job card na'ed the step due to earlier sequence job card that was to remove lavatory tank and pan first.

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Attributes
ACN	650453
Time
Date	200502
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Person 1
Affiliation	company : air carrier
Function	maintenance : inspector
ASRS Report	650453
Person 2
Affiliation	company : air carrier
Function	oversight : supervisor
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation non adherence : published procedure non adherence : far
Independent Detector	other other : 2
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : engineering procedure contributing factor : work cards performance deficiency : inspection performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Maintenance Human Performance Aircraft Chart Or Publication
Primary Problem	Maintenance Human Performance

Narrative:

On card; item calls for checking condition of floorboard under forward lavatory. I na'ed this block because of not removing the lavatory tank and pan to accomplish the mylar removal and polyamide insulation reinstall; which is the driver of engineering order. Engineering was to change the note as to reflect this; but I guess due to confusion with red lines in aft lavatories; he wrote it as: north/a if floor panel not installed. The note should have read: north/a if lavatory tank and pan not removed. I did not catch the mistake until mar/wed/05. I asked supervisor to contact engineer on days to correct it; but he said he did not want to change it. He stated 'just look at the area around the pan and sign it off.' I was notified of this friday afternoon when I reported to work from day shift supervisor; this report goes in conjunction with the report I sent on feb/tue/05.

Original NASA ASRS Text

Title: AN MD80 TECHNICIAN WORKING A LAVATORY FLOOR BOARD INSPECTION JOB CARD NA'ED THE STEP DUE TO EARLIER SEQUENCE JOB CARD THAT WAS TO REMOVE LAVATORY TANK AND PAN FIRST.

Narrative: ON CARD; ITEM CALLS FOR CHKING CONDITION OF FLOORBOARD UNDER FORWARD LAVATORY. I NA'ED THIS BLOCK BECAUSE OF NOT REMOVING THE LAVATORY TANK AND PAN TO ACCOMPLISH THE MYLAR REMOVAL AND POLYAMIDE INSULATION REINSTALL; WHICH IS THE DRIVER OF ENGINEERING ORDER. ENGINEERING WAS TO CHANGE THE NOTE AS TO REFLECT THIS; BUT I GUESS DUE TO CONFUSION WITH RED LINES IN AFT LAVATORIES; HE WROTE IT AS: N/A IF FLOOR PANEL NOT INSTALLED. THE NOTE SHOULD HAVE READ: N/A IF LAVATORY TANK AND PAN NOT REMOVED. I DID NOT CATCH THE MISTAKE UNTIL MAR/WED/05. I ASKED SUPVR TO CONTACT ENGINEER ON DAYS TO CORRECT IT; BUT HE SAID HE DID NOT WANT TO CHANGE IT. HE STATED 'JUST LOOK AT THE AREA AROUND THE PAN AND SIGN IT OFF.' I WAS NOTIFIED OF THIS FRIDAY AFTERNOON WHEN I RPTED TO WORK FROM DAY SHIFT SUPVR; THIS RPT GOES IN CONJUNCTION WITH THE RPT I SENT ON FEB/TUE/05.

Data retrieved from NASA's ASRS site as of January 2009 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.