Service difficulty report · Torque Tube · Boeing 7378H4

Difficulty date
April 23, 2026
Submitted
April 27, 2026
Operation
Air carrier
Aircraft
N8540V
Make and model
Boeing 7378H4
Aircraft serial
63598
Aircraft time
29,023 hours, 14,776 cycles
Part
Torque Tube
Condition
Damaged
Location
Flap Sys
Stage of operation
TX
How discovered
O
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

AFTER LANDING ROLL WHEN FLAPS WERE RETRACTED LEFT GUAGE INDICATOR STOPPED AT 5 RIGHT INDICATOR STOPPED AT 2.<[01] FOUND LH FLAP TORQUE TUBE SUPPORT P/N: 256A3750-3 DAMAGED. REMOVED LH FLAP TORQUE TUBE SUPPORT P/N: 256A3750-3 PER. AMM 27-51-59.;[02] INSTALLED LEFT HAND FLAP TORQUE TUBE SUPPORT IAW AMM 27-51-59 AND ADJUSTED TRAILING EDGE FLAP DRIVE SYSTEM IAW AMM 27-51-00. OPS TEST GOOD.;[03] INSPECTED INSTALLATION & ADJUSTMENT OF LH FLAP TORQUE TUBE SUPPORT PER AMM 27-51-59 & AMM 27-51-00.;[04] C/W RII INSPECTION;[05] C/W

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