Air carrier technician reported discovering excessive wear on the 737-800 horizontal stabilizer hing...

Narrative:

While accomplishing [maintenance document number] for vertical bounce I discovered excessive wear at the horizontal stabilizer hinge bearings. [Maintenance control] locked the log page and the aircraft was ferried to ZZZ1 for permanent repair. Later [maintenance control] decided to continue the aircraft in revenue service with a [deferral] for up to 100 cycles. On [date] the aircraft was taken out of service for the same issue where it is currently being repaired. This is a known issue on the 737-800 fleet at our company and other carriers; boeing has an ftd (fleet team digest) 737NG-ftd-55-13001. With this amount of wear the aircraft should have been repaired immediately at ZZZ1; the aircraft should not continue in revenue service. A fleet campaign should be accomplished to check for failure of the horizontal stabilizer hinge bearing.

Original NASA ASRS Text

Title: Air Carrier Technician reported discovering excessive wear on the 737-800 horizontal stabilizer hinge bearings. Technician stated this is a know issue with this fleet.

Narrative: While accomplishing [Maintenance Document Number] for vertical bounce I discovered excessive wear at the horizontal stabilizer hinge bearings. [Maintenance Control] locked the log page and the Aircraft was ferried to ZZZ1 for permanent repair. Later [Maintenance Control] decided to continue the aircraft in revenue service with a [Deferral] for up to 100 cycles. On [Date] the aircraft was taken out of service for the same issue where it is currently being repaired. This is a known issue on the 737-800 fleet at our company and other carriers; Boeing has an FTD (Fleet Team Digest) 737NG-FTD-55-13001. With this amount of wear the Aircraft should have been repaired immediately at ZZZ1; the Aircraft should not continue in revenue service. A fleet campaign should be accomplished to check for failure of the horizontal stabilizer hinge bearing.

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.

Attributes
ACN	1638069
Time
Date	201703
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Stabilizer Attachment
Person 1
Function	Technician
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy

Air carrier technician reported discovering excessive wear on the 737-800 horizontal stabilizer hinge bearings. Technician stated this is a know issue with this fleet.