Narrative:

Aircraft maintenance pre-flight inspection package was being worked a boeing 737-300 aircraft. Myself and one other technician noted the right main gear strut with low chrome (low extension). I printed the boeing chapter aircraft maintenance manual (amm) reference for servicing the strut and brought it out to the aircraft. Technician Y stated that the extension measured [well] and that no action was required; [and] then signed-off the strut inspection task on the pre-flight inspection check paperwork. Technician Y approached me with concerns about the low strut. I measured the strut myself and found it to be approximately 2' inches below the minimums called out in the amm; and the strut servicing placard in located in the main wheel well. After approaching technician Y; he was insistent that he had found the strut ok for service and that no further action was required. I pointed out the proper method of measuring the extension to technician Y. Technician Y re-reviewed the paperwork and placard then stated that he must have 'misinterpreted' the graph [on the placard] and that we was incorrect on his earlier conclusion. One hour later the aircraft was dispatched to ZZZ1 with [passengers] on-board; myself and technician Y included. Immediately after arrival an aircraft maintenance post-flight inspection work package was performed. On the post flight inspection; technician a approached me with a flashlight that was found turned 'on' and still lit in the main landing gear (medium large transport) wheel well. When I asked my team if they knew who it belonged to technician Y asked 'where was it found'? I told him it was found in the main gear wheel well. Technician Y then stated 'it's mine. I used it this morning to read the strut servicing placard in the wheel well. I later looked for it in there but could not find it'. I have three safety concerns: 1) a technician was not able to interpret a servicing graph and was not receptive to other concerns that the strut was not ok for service.2. A technician would use a flashlight while working on an aircraft; loose it; look for it and not find it; then just walk away. 3. An aircraft completed a 1.5 hour flight with a flashlight laying on the keel beam in the medium large transport wheel well.

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Original NASA ASRS Text

Title: A Lead Aircraft Maintenance Technician (AMT) reports about instructing another Technician on how to read a Main Landing Gear (MLG) Strut Servicing Placard on a B737-300 aircraft. Technician subsequently left his flashlight in the MLG wheel well after completing the strut service but did not inform anyone he had misplaced his light prior to departure.

Narrative: Aircraft Maintenance pre-flight Inspection package was being worked a Boeing 737-300 aircraft. Myself and one other Technician noted the Right Main Gear strut with low chrome (low extension). I printed the Boeing Chapter Aircraft Maintenance Manual (AMM) reference for servicing the strut and brought it out to the aircraft. Technician Y stated that the extension measured [well] and that no action was required; [and] then signed-off the strut inspection task on the Pre-flight Inspection Check paperwork. Technician Y approached me with concerns about the low strut. I measured the strut myself and found it to be approximately 2' inches below the minimums called out in the AMM; and the Strut Servicing Placard in located in the main wheel well. After approaching Technician Y; he was insistent that he had found the strut OK for service and that no further action was required. I pointed out the proper method of measuring the extension to Technician Y. Technician Y re-reviewed the paperwork and Placard then stated that he must have 'misinterpreted' the graph [on the Placard] and that we was incorrect on his earlier conclusion. One hour later the aircraft was dispatched to ZZZ1 with [passengers] on-board; myself and Technician Y included. Immediately after arrival an Aircraft Maintenance Post-flight Inspection work package was performed. On the post flight inspection; Technician A approached me with a flashlight that was found turned 'On' and still lit in the Main Landing Gear (MLG) wheel well. When I asked my team if they knew who it belonged to Technician Y asked 'where was it found'? I told him it was found in the main gear wheel well. Technician Y then stated 'It's mine. I used it this morning to read the Strut Servicing Placard in the wheel well. I later looked for it in there but could not find it'. I have three safety concerns: 1) A Technician was not able to interpret a servicing graph and was not receptive to other concerns that the strut was not OK for service.2. A Technician would use a flashlight while working on an aircraft; loose it; look for it and not find it; then just walk away. 3. An aircraft completed a 1.5 hour flight with a flashlight laying on the keel beam in the MLG wheel well.

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.