Narrative:

[I] had this B737-800 aircraft last night [from] ZZZ [to] ZZZZ. I wrote up left reverser [overhead] light 'on' with advancement of throttles. I have submitted previous reports; same subject and problem; different B737-800 aircraft. I have found that when reviewing airworthiness directive ad 2008-23; this reverser light occurs when advancing throttles past a certain point without the activation of the reversers. I wrote up this thrust reverser; see pilot report #xx. Maintenance reset the engine accessory unit (eau). Had the following eau (engine accessory unit) messages; seems to be a habit regarding this issue:* left sleeve sync lock power* right sleeve sync lock power* hydraulic isolation valve sensorthen [maintenance] wanted to sign-off the item. I advanced the throttles again; left reverser light came on again; and I said I need the reverser pinned. [We] had to change planes since we were going to ZZZZ; and both reversers were required to depart for ZZZZ. I left the aircraft with this pilot report open. I checked the logbook sign-off this evening and noticed the plane was signed-off just as maintenance wanted to do to me earlier. The problem is not fixed. There was no positive action taken; even though I demonstrated to maintenance that resetting the eau and cycling the thrust reversers is not a permanent fix. This and other [B737-800] aircraft are flying around with hidden thrust reverser issues based on my extensive experience with this problem.crews are being forced to take aircraft with known; potentially dangerous; hidden thrust reverser issues that are being covered up by some maintenance personnel. I have asked several times through reports and direct communication with air carrier management; to be a part of fixing this problem. Except for 'matter closed;' I get no productive response. This problem needs to be fixed or maybe boeing/cfm can explain to me this is a transient; non-issue problem. Regardless; it is being swept under the carpet. I have had recent experience with other B737-800 aircraft with the same problems.

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Original NASA ASRS Text

Title: A pilot reports recurring engine 'reverser' lights illuminating; intermittently; at the P5 aft overhead panel on numerous B737-800 aircraft when throttles are advanced. Repeated cycling of the CFM-56 engine thrust reversers to clear the Engine Accessory Unit (EAU) 'STOW' faults and logbook write-ups; have not corrected the problems.

Narrative: [I] had this B737-800 aircraft last night [from] ZZZ [to] ZZZZ. I wrote up left reverser [overhead] light 'ON' with advancement of throttles. I have submitted previous reports; same subject and problem; different B737-800 aircraft. I have found that when reviewing airworthiness directive AD 2008-23; this reverser light occurs when advancing throttles past a certain point without the activation of the reversers. I wrote up this thrust reverser; see pilot report #XX. Maintenance reset the Engine Accessory Unit (EAU). Had the following EAU (Engine Accessory Unit) messages; seems to be a habit regarding this issue:* Left Sleeve Sync Lock Power* Right Sleeve Sync Lock Power* Hydraulic Isolation Valve SensorThen [Maintenance] wanted to sign-off the item. I advanced the throttles again; L REVERSER light came on again; and I said I need the reverser pinned. [We] had to change planes since we were going to ZZZZ; and both reversers were required to depart for ZZZZ. I left the aircraft with this pilot report open. I checked the logbook sign-off this evening and noticed the plane was signed-off just as Maintenance wanted to do to me earlier. The problem is not fixed. There was no positive action taken; even though I demonstrated to Maintenance that resetting the EAU and cycling the thrust reversers is not a permanent fix. This and other [B737-800] aircraft are flying around with hidden thrust reverser issues based on my extensive experience with this problem.Crews are being forced to take aircraft with known; potentially dangerous; hidden thrust reverser issues that are being covered up by some Maintenance personnel. I have asked several times through reports and direct communication with Air Carrier Management; to be a part of fixing this problem. Except for 'matter closed;' I get no productive response. This problem needs to be fixed or maybe Boeing/CFM can explain to me this is a transient; non-issue problem. Regardless; it is being swept under the carpet. I have had recent experience with other B737-800 aircraft with the same problems.

Data retrieved from NASA's ASRS site as of April 2012 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.