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An IO520 engine being overhauled had an airworthiness directive accomplished but not entered in the logbook as accomplished.
| Attributes | |
| ACN | 370493 |
| Time | |
| Date | 199706 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | other personnel |
| Qualification | other other : other |
| ASRS Report | 370493 |
| Person 2 | |
| Affiliation | government : faa |
| Function | observation : air carrier inspector |
| Qualification | other other : other |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
While changing 6 cylinders on an IO520 engine, I also removed the magnetos and just as a matter of good practice, complied with airworthiness directive 96-12-07 (impulse coupling check for wear). However, I forgot to sign off the airworthiness directive in the logbook. I made a note on my status board that the airworthiness directive wasn't due for another 500 hours and didn't think anything more about it until now going through the logs with an FAA inspector. I am sure that the difference between the current tachometer time and the previously recorded compliance with airworthiness directive 96-12-07 would show about 50 hours overdue. The airworthiness directive was accomplished but not signed off. Changing the 6 cylinders and the other engine inspections for detonation and internal damage (bad fuel) and dealing with the record keeping for litigation involved with the fueling incident occupied much of my time and I forgot to review my notes and sign off the airworthiness directive.
Original NASA ASRS Text
Title: AN IO520 ENG BEING OVERHAULED HAD AN AIRWORTHINESS DIRECTIVE ACCOMPLISHED BUT NOT ENTERED IN THE LOGBOOK AS ACCOMPLISHED.
Narrative: WHILE CHANGING 6 CYLINDERS ON AN IO520 ENG, I ALSO REMOVED THE MAGNETOS AND JUST AS A MATTER OF GOOD PRACTICE, COMPLIED WITH AIRWORTHINESS DIRECTIVE 96-12-07 (IMPULSE COUPLING CHK FOR WEAR). HOWEVER, I FORGOT TO SIGN OFF THE AIRWORTHINESS DIRECTIVE IN THE LOGBOOK. I MADE A NOTE ON MY STATUS BOARD THAT THE AIRWORTHINESS DIRECTIVE WASN'T DUE FOR ANOTHER 500 HRS AND DIDN'T THINK ANYTHING MORE ABOUT IT UNTIL NOW GOING THROUGH THE LOGS WITH AN FAA INSPECTOR. I AM SURE THAT THE DIFFERENCE BTWN THE CURRENT TACHOMETER TIME AND THE PREVIOUSLY RECORDED COMPLIANCE WITH AIRWORTHINESS DIRECTIVE 96-12-07 WOULD SHOW ABOUT 50 HRS OVERDUE. THE AIRWORTHINESS DIRECTIVE WAS ACCOMPLISHED BUT NOT SIGNED OFF. CHANGING THE 6 CYLINDERS AND THE OTHER ENG INSPECTIONS FOR DETONATION AND INTERNAL DAMAGE (BAD FUEL) AND DEALING WITH THE RECORD KEEPING FOR LITIGATION INVOLVED WITH THE FUELING INCIDENT OCCUPIED MUCH OF MY TIME AND I FORGOT TO REVIEW MY NOTES AND SIGN OFF THE AIRWORTHINESS DIRECTIVE.
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.