A B767-300 was dispatched with the incorrect outboard leading edge device installed.

Attributes
ACN	410629
Time
Date	199807
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz
State Reference	US
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	410629
Person 2
Affiliation	company : air carrier
Function	other personnel other
ASRS Report	410633
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : far
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

I am filing this report as I have been informed that the wrong 'dash' number slat may have been installed on aircraft xyz when it was OTS in ZZZ. I first worked aircraft xyz at XA00 on jul/xy/98, taking the turnover from XA30 shift. At that time, #9 and #10 slats were installed on wing. The parts tags having previously been filled out and placed with the slat in the shipping container. I performed the required inspection item on the final installation and rigging. At no time did anything seem unusual. The slats fit and faired perfectly. The tolerances were well within maintenance manual limits and the proximity test showed no faults during bite check. In the future I will be back checking all dash number effectivities. I would suggest that all slat outboard assemblies be plainly placarded -200 or -300 as wheel assemblies now are.

Original NASA ASRS Text

Title: A B767-300 WAS DISPATCHED WITH THE INCORRECT OUTBOARD LEADING EDGE DEVICE INSTALLED.

Narrative: I AM FILING THIS RPT AS I HAVE BEEN INFORMED THAT THE WRONG 'DASH' NUMBER SLAT MAY HAVE BEEN INSTALLED ON ACFT XYZ WHEN IT WAS OTS IN ZZZ. I FIRST WORKED ACFT XYZ AT XA00 ON JUL/XY/98, TAKING THE TURNOVER FROM XA30 SHIFT. AT THAT TIME, #9 AND #10 SLATS WERE INSTALLED ON WING. THE PARTS TAGS HAVING PREVIOUSLY BEEN FILLED OUT AND PLACED WITH THE SLAT IN THE SHIPPING CONTAINER. I PERFORMED THE REQUIRED INSPECTION ITEM ON THE FINAL INSTALLATION AND RIGGING. AT NO TIME DID ANYTHING SEEM UNUSUAL. THE SLATS FIT AND FAIRED PERFECTLY. THE TOLERANCES WERE WELL WITHIN MAINT MANUAL LIMITS AND THE PROX TEST SHOWED NO FAULTS DURING BITE CHK. IN THE FUTURE I WILL BE BACK CHKING ALL DASH NUMBER EFFECTIVITIES. I WOULD SUGGEST THAT ALL SLAT OUTBOARD ASSEMBLIES BE PLAINLY PLACARDED -200 OR -300 AS WHEEL ASSEMBLIES NOW ARE.

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.