Service difficulty report · Tension Tie · Boeing 74745E

Difficulty date
January 19, 2024
Submitted
February 22, 2024
Operation
Air carrier
Aircraft
N578UP
Make and model
Boeing 74745E
Aircraft serial
27154
Aircraft time
119,464 hours, 20,125 cycles
Part
Tension Tie
Part number
65B0963111
Condition
Cracked
Location
Bs 1120
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

*MAJOR REPAIR* FAULT - CRACK - FND TENSION TIE CHANNEL FWD SIDE CRACK AT STA 1120 L/H (REPAIR) ACCOMPLISH REINFORCING REPAIR I/A/W B747-400SF (REV. 58) SRM 53-40-30-2R-2 (FIGURE 201). 1.ACCOMPLISH INSPECTION I/A/W B747-400SF (REV. 58) SRM 53-40-30-2R-2, TABLE 202 AT 3,000 FLIGHT CYCLES AFTER REPAIR INSTALLATION. REPEAT INSPECTIONS EVERY 3,000 FLIGHT CYCLES, THEREAFTER.<BR>2.REPEAT INSPECTION REQUERT DEFERRAL PER DMI - SRM 53-40-30-2R-2 TABLE 202.

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