Narrative:

During flight from ZZZZ to ZZZZ1; left engine lost oil pressure and oil. The aircraft did a [priority] landing in ZZZ. I was called and told to fly to ZZZ to fix aircraft. I went to ZZZ and found that the engine tachometer generator had vibrated loose and lost oil. I also noticed the wrong hardware was used to install old generator. I ordered parts needed and repaired aircraft. After; the amm (aircraft maintenance manual) required a high power engine run; which I could not do at the gate; so we informed [maintenance control] and had pilots come out and we would do high power run before takeoff. During the high power run; the pilot over sped [the] engine and engine did a compressor stall. We [then] went back to the gate and started more trouble shooting according to the [fault isolation manual]. We found the atsu was bad and ordered another. While waiting on atsu; maintenance control scheduled a maintenance ferry flight. I made my opinion clear this was not a good idea. We then received the new atsu and installed [in accordance with] amm. We did an engine run and engine did not pass. We reported this to [maintenance control] and went back to hotel. The next day; [maintenance control] is shooting out ideas and I requested an 18 month background report on this engine. When I read the report; I could not believe it. The maintenance history on this plane was unbelievable. I should have been given this information before I came out to work on plane. I was exhausted; my rotation days were up; [and] I was going home. I was frustrated and gave my two weeks notice. I proceeded home and before I got there; my company phone had been turned off and no access to my company email or safety program. When I tried to call the director of maintenance; no answer and he never returned my calls. I could not reach anyone in the company except for [safety manager]. After reporting the issue to him; he suggested that I make this report. For the past 35 years; I have been making planes safe for air travel and I will not jeopardize my license or human life for a company to make a dollar.

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Original NASA ASRS Text

Title: Mechanic reported experiencing questionable maintenance practices.

Narrative: During flight from ZZZZ to ZZZZ1; left engine lost oil pressure and oil. The aircraft did a [priority] landing in ZZZ. I was called and told to fly to ZZZ to fix aircraft. I went to ZZZ and found that the Engine Tachometer generator had vibrated loose and lost oil. I also noticed the wrong hardware was used to install old generator. I ordered parts needed and repaired aircraft. After; the AMM (Aircraft Maintenance Manual) required a high power engine run; which I could not do at the gate; so we informed [Maintenance Control] and had pilots come out and we would do high power run before takeoff. During the high power run; the pilot over sped [the] engine and engine did a compressor stall. We [then] went back to the gate and started more trouble shooting according to the [Fault Isolation Manual]. We found the ATSU was bad and ordered another. While waiting on ATSU; Maintenance Control scheduled a maintenance ferry flight. I made my opinion clear this was not a good idea. We then received the new ATSU and installed [in accordance with] AMM. We did an engine run and engine did not pass. We reported this to [Maintenance Control] and went back to hotel. The next day; [Maintenance Control] is shooting out ideas and I requested an 18 month background report on this engine. When I read the report; I could not believe it. The maintenance history on this plane was unbelievable. I should have been given this information before I came out to work on plane. I was exhausted; my rotation days were up; [and] I was going home. I was frustrated and gave my two weeks notice. I proceeded home and before I got there; my company phone had been turned off and no access to my company email or safety program. When I tried to call the Director of Maintenance; no answer and he never returned my calls. I could not reach anyone in the company except for [Safety Manager]. After reporting the issue to him; he suggested that I make this report. For the past 35 years; I have been making planes safe for air travel and I will not jeopardize my license or human life for a company to make a dollar.

Data retrieved from NASA's ASRS site 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.