Service difficulty report · Retainer · Boeing 7377*

Difficulty date
February 22, 2024
Submitted
February 22, 2024
Operation
General aviation
Make and model
Boeing 7377*
Aircraft serial
38751
Aircraft time
2,401 hours, 534 cycles
System (JASC)
5751 · Ailerons
Part
Retainer
Part number
115A47583
Condition
Broken
Location
Rt Wing Seal
Stage of operation
IN
How discovered
V
Nature of condition
F
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RIGHT HAND PANEL PN: 115A4712-910 (671BB) RETAINER ASSY ANGLE SEAL PN: 115A4722-2 FOUND DAMAGED DURING MAINTENANCE EVENT ROUTINE INSPECTIONS. ANGLE FOUND WORN AND BROKEN ON THE OUTBOARD END. DAMAGE OCCURRED DURING RIGHT HAND AILERON MOVEMENTS PRIOR TO ARRIVING AT REPAIR STATION FOR MAINTENANCE EVENT. INVESTIGATION FOUND ANGLE FOUND TO BE PREVIOUSLY INSTALLED BACKWARDS. OUR REPAIR STATION WILL BE ABLE TO REPAIR DISCREPANCY IAW BOEING AMM. ANGLE IS IDENTIFIED IN BOEING 737-700 IPC 57-50-00-15 ITEM 295, FIGURE 15.

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