A grumman AA5A 100 hour check propeller was signed off improperly by a person not doing the work.

Attributes
ACN	473731
Time
Date	200004
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Dusk
Aircraft 1
Operator	general aviation : personal
Make Model Name	Cheetah, Tiger, Traveler
Operating Under FAR Part	Part 91
Flight Phase	ground : maintenance ground : parked
Flight Plan	None
Person 1
Affiliation	company other
Function	flight crew : single pilot
Qualification	technician : powerplant technician : airframe
ASRS Report	473731
Person 2
Affiliation	other
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper documentation non adherence : published procedure non adherence : far
Independent Detector	other other : person 2
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	performance deficiency : logbook entry performance deficiency : non compliance with legal requirements
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

I am the owner of a grumman AA5A cheetah and I lease it to a flight school. I also work at the flight school as an airframe certificated mechanic. The event in question is of my doing. I paid a fellow co-worker certificated a&P mechanic to perform a 100 hour inspection on my AA5A, xbxa. He did so and returned the aircraft back to service. I spoke with him about the 100 hour and knew of all the defects that were found and repaired. Now, 4 weeks later, the next 100 hour came due and I paid the same a&P mechanic to do the 100 hour again. Now this week I would be gone on a trip for 1 week and overseas aboard a ship so, just prior to my departure for the day, I noticed the propeller log had not been signed off for the previous 100 hour inspection. I figured the mechanic must have forgot. I knew he would do this again, so I wrote the missing log entry for the 100 hour on the propeller and signed his name and his a&P number to the write-up. My intentions were to show him and if he liked the write-up he could initial or re-endorse the log entry and my books would be in order. But I did not see him and had to leave on my trip and thought it would be ok until I returned since he would be performing the next 100 hour anyway. Now, upon my return, he left a message for me about a logbook discrepancy he found. I finally talked to the mechanic. He was completely mad and accused me of forgery. I explained the situation and he said he did sign off the propeller but he put in the airframe logbook, so I X'ed out the write-up and wrote in big bold letters 'improper entry, see airframe logbook for this 100 hour propeller inspection.' the mechanic said everything was fine, but he was going to keep a photocopy of the write-up before it was X'ed out and I don't want anything to come of this, so I am filling out this form to help with any future events over the bad entry in the propeller log. Now I must say I intended no malice or wrong doing in this situation.

Original NASA ASRS Text

Title: A GRUMMAN AA5A 100 HR CHK PROP WAS SIGNED OFF IMPROPERLY BY A PERSON NOT DOING THE WORK.

Narrative: I AM THE OWNER OF A GRUMMAN AA5A CHEETAH AND I LEASE IT TO A FLT SCHOOL. I ALSO WORK AT THE FLT SCHOOL AS AN AIRFRAME CERTIFICATED MECH. THE EVENT IN QUESTION IS OF MY DOING. I PAID A FELLOW CO-WORKER CERTIFICATED A&P MECH TO PERFORM A 100 HR INSPECTION ON MY AA5A, XBXA. HE DID SO AND RETURNED THE ACFT BACK TO SVC. I SPOKE WITH HIM ABOUT THE 100 HR AND KNEW OF ALL THE DEFECTS THAT WERE FOUND AND REPAIRED. NOW, 4 WKS LATER, THE NEXT 100 HR CAME DUE AND I PAID THE SAME A&P MECH TO DO THE 100 HR AGAIN. NOW THIS WK I WOULD BE GONE ON A TRIP FOR 1 WK AND OVERSEAS ABOARD A SHIP SO, JUST PRIOR TO MY DEP FOR THE DAY, I NOTICED THE PROP LOG HAD NOT BEEN SIGNED OFF FOR THE PREVIOUS 100 HR INSPECTION. I FIGURED THE MECH MUST HAVE FORGOT. I KNEW HE WOULD DO THIS AGAIN, SO I WROTE THE MISSING LOG ENTRY FOR THE 100 HR ON THE PROP AND SIGNED HIS NAME AND HIS A&P NUMBER TO THE WRITE-UP. MY INTENTIONS WERE TO SHOW HIM AND IF HE LIKED THE WRITE-UP HE COULD INITIAL OR RE-ENDORSE THE LOG ENTRY AND MY BOOKS WOULD BE IN ORDER. BUT I DID NOT SEE HIM AND HAD TO LEAVE ON MY TRIP AND THOUGHT IT WOULD BE OK UNTIL I RETURNED SINCE HE WOULD BE PERFORMING THE NEXT 100 HR ANYWAY. NOW, UPON MY RETURN, HE LEFT A MESSAGE FOR ME ABOUT A LOGBOOK DISCREPANCY HE FOUND. I FINALLY TALKED TO THE MECH. HE WAS COMPLETELY MAD AND ACCUSED ME OF FORGERY. I EXPLAINED THE SIT AND HE SAID HE DID SIGN OFF THE PROP BUT HE PUT IN THE AIRFRAME LOGBOOK, SO I X'ED OUT THE WRITE-UP AND WROTE IN BIG BOLD LETTERS 'IMPROPER ENTRY, SEE AIRFRAME LOGBOOK FOR THIS 100 HR PROP INSPECTION.' THE MECH SAID EVERYTHING WAS FINE, BUT HE WAS GOING TO KEEP A PHOTOCOPY OF THE WRITE-UP BEFORE IT WAS X'ED OUT AND I DON'T WANT ANYTHING TO COME OF THIS, SO I AM FILLING OUT THIS FORM TO HELP WITH ANY FUTURE EVENTS OVER THE BAD ENTRY IN THE PROP LOG. NOW I MUST SAY I INTENDED NO MALICE OR WRONG DOING IN THIS SIT.

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.