A B737-300 was dispatched out of a 'B' check with a slat access panel missing. The inspector that signed off the final inspection admits possible error on wing inspection.

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Attributes
ACN	681034
Time
Date	200511
Place
Locale Reference	airport : zzz.airport
State Reference	US
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : parked ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : inspector
ASRS Report	681034
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far
Independent Detector	other other : 3
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : installation performance deficiency : logbook entry performance deficiency : inspection performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Environmental Factor Aircraft Chart Or Publication Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

I was informed a panel on aircraft was found missing nov/fri/05. The panel in question is slat access panel 6533. The aircraft was in back course check on the night of nov/wed/05 and I was inspector on that wing. I stamped the inspection close on that panel as well as the rest of the panels on that wing. As well as I can recollect; all the panels I bought off were installed and secure. I try to always maintain vigilance and not become complacent; especially since loose/missing screws and panels are one of my pet peeves. With that said; obviously the evidence points to my missing the incorrect installation of the panel for which I accept responsibility.

Original NASA ASRS Text

Title: A B737-300 WAS DISPATCHED OUT OF A 'B' CHK WITH A SLAT ACCESS PANEL MISSING. THE INSPECTOR THAT SIGNED OFF THE FINAL INSPECTION ADMITS POSSIBLE ERROR ON WING INSPECTION.

Narrative: I WAS INFORMED A PANEL ON ACFT WAS FOUND MISSING NOV/FRI/05. THE PANEL IN QUESTION IS SLAT ACCESS PANEL 6533. THE ACFT WAS IN BC CHK ON THE NIGHT OF NOV/WED/05 AND I WAS INSPECTOR ON THAT WING. I STAMPED THE INSPECTION CLOSE ON THAT PANEL AS WELL AS THE REST OF THE PANELS ON THAT WING. AS WELL AS I CAN RECOLLECT; ALL THE PANELS I BOUGHT OFF WERE INSTALLED AND SECURE. I TRY TO ALWAYS MAINTAIN VIGILANCE AND NOT BECOME COMPLACENT; ESPECIALLY SINCE LOOSE/MISSING SCREWS AND PANELS ARE ONE OF MY PET PEEVES. WITH THAT SAID; OBVIOUSLY THE EVIDENCE POINTS TO MY MISSING THE INCORRECT INSTALLATION OF THE PANEL FOR WHICH I ACCEPT RESPONSIBILITY.

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.