Because of an error in paperwork the wrong service check was conducted by maintenance personnel. Air...

Attributes
ACN	106729
Time
Date	198903
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : fat
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	106729
Person 2
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	106372
Events
Anomaly	aircraft equipment problem : less severe non adherence : far other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

It was my responsibility to issue the airworthiness release on an aircraft following a scheduled 'a-20' check. The maintenance plan called for the 'a-20', and a check form was supplied with the work package. The work was accomplished in accordance with the package, the paperwork reviewed and the aircraft released. An apparent clerical error caused the issuance of the form for the 'a-21', instead of the one for the 'a-20'. This single digit change on the tally sheet number escaped my attention in the review of the paperwork package. My practice henceforth will be to confirm that issued forms correspond with the scheduled maintenance. The error was discovered by the records department and immediate action taken to effect the correct inspection. Supplemental information from acn 106372: it is our intention to form a production control group who will be specifically charged with the coordination and scheduling of all production work.

Original NASA ASRS Text

Title: BECAUSE OF AN ERROR IN PAPERWORK THE WRONG SERVICE CHECK WAS CONDUCTED BY MAINTENANCE PERSONNEL. ACFT WAS THEN RETURNED TO SERVICE AND RELEASED ILLEGALLY.

Narrative: IT WAS MY RESPONSIBILITY TO ISSUE THE AIRWORTHINESS RELEASE ON AN ACFT FOLLOWING A SCHEDULED 'A-20' CHK. THE MAINT PLAN CALLED FOR THE 'A-20', AND A CHK FORM WAS SUPPLIED WITH THE WORK PACKAGE. THE WORK WAS ACCOMPLISHED IN ACCORDANCE WITH THE PACKAGE, THE PAPERWORK REVIEWED AND THE ACFT RELEASED. AN APPARENT CLERICAL ERROR CAUSED THE ISSUANCE OF THE FORM FOR THE 'A-21', INSTEAD OF THE ONE FOR THE 'A-20'. THIS SINGLE DIGIT CHANGE ON THE TALLY SHEET NUMBER ESCAPED MY ATTN IN THE REVIEW OF THE PAPERWORK PACKAGE. MY PRACTICE HENCEFORTH WILL BE TO CONFIRM THAT ISSUED FORMS CORRESPOND WITH THE SCHEDULED MAINT. THE ERROR WAS DISCOVERED BY THE RECORDS DEPT AND IMMEDIATE ACTION TAKEN TO EFFECT THE CORRECT INSPECTION. SUPPLEMENTAL INFO FROM ACN 106372: IT IS OUR INTENTION TO FORM A PRODUCTION CONTROL GROUP WHO WILL BE SPECIFICALLY CHARGED WITH THE COORD AND SCHEDULING OF ALL PRODUCTION WORK.

Data retrieved from NASA's ASRS site as of August 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.

Because of an error in paperwork the wrong service check was conducted by maintenance personnel. Aircraft was then returned to service and released illegally.