A BK117 helicopter overflew the due date for accomplishment of an airworthiness directive.

Attributes
ACN	474794
Time
Date	200005
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	MBB-BK 117A-1
Operating Under FAR Part	Part 135
Flight Phase	ground : parked ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
Experience	maintenance technician : 3
ASRS Report	474794
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	other other : person 1
Resolutory Action	none taken : detected after the fact
Consequence	other other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : inspection
Supplementary
Problem Areas	Chart Or Publication Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

Overflown airworthiness directive 300 hours vertical fin inspection. There were 3 dailies completed and several preflts completed before it was noticed on the date of jun/xa/00 that we had overflown the airworthiness directive. It was due on the date of may/xb/00 and due aircraft total time of 7184.6. It was overflown by 12.5 hours. I missed the inspection because I xferred numbers wrong onto sheet of inspections listed to go by for scheduled maintenance.

Original NASA ASRS Text

Title: A BK117 HELI OVERFLEW THE DUE DATE FOR ACCOMPLISHMENT OF AN AIRWORTHINESS DIRECTIVE.

Narrative: OVERFLOWN AIRWORTHINESS DIRECTIVE 300 HRS VERT FIN INSPECTION. THERE WERE 3 DAILIES COMPLETED AND SEVERAL PREFLTS COMPLETED BEFORE IT WAS NOTICED ON THE DATE OF JUN/XA/00 THAT WE HAD OVERFLOWN THE AIRWORTHINESS DIRECTIVE. IT WAS DUE ON THE DATE OF MAY/XB/00 AND DUE ACFT TOTAL TIME OF 7184.6. IT WAS OVERFLOWN BY 12.5 HRS. I MISSED THE INSPECTION BECAUSE I XFERRED NUMBERS WRONG ONTO SHEET OF INSPECTIONS LISTED TO GO BY FOR SCHEDULED MAINT.

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.