Service difficulty report · Fitting · Boeing 7377H4

Difficulty date
May 25, 2023
Submitted
July 5, 2023
Operation
Air carrier
Aircraft
N440LV
Make and model
Boeing 7377H4
Aircraft serial
29835
Aircraft time
66,389 hours, 39,384 cycles
Part
Fitting
Part number
UNKNOWN
Condition
Corroded
Location
Zn 300 Stabilize
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

VERTICAL FIN FRONT SPAR FITTING AT STA 1016 L/H BOLT HAS A SPOT OF CORROSION.<[01] REMOVED AND REPLACED VERTICAL FINFRONT SPAR FITTINGAT STA 1016 L/H BOLT AS PER AMM 55-30-200-801 TORQUE WRENCH <BR> BC 175291 <BR> DUE DATE: 11/18/23;[02] REMOVED AND REPLACED VERTICAL FINFRONT SPAR FITTINGAT STA 1016 L/H BOLT PENDING SLING ASSEMBLY REMOVAL AS PER AMM 55-30-200-801 TORQUE WRENCH <BR> BC 175291 <BR> DUE DATE: 11/18/23;[03] REMOVED AND REPLACED VERTICAL FINFRONT SPAR FITTINGAT STA 1016 L/H BOLT AS PER AMM 55-30-200-801 TORQUE WRENCH <BR> BC 175291 <BR> DUE DATE: 11/18/23;[04] CORRECTION: REMOVED AND REPLACED VERTICAL FIN FRONT SPAR FITTING AT STA 1016 L/H BOLT AS PER AMM 55-30-200-801. <BR><BR>TORQUE WRENCH USED: BC 175291 CAL DUE DATE: 11/18/23;[05] CORRECTION: REMOVED AND REPLACED VERTICAL FIN FRONT SPAR FITTING AT STA 1016 L/H BOLT AS PER AMM 55-30-200-801. SLING REMOVED.<BR><BR>TORQUE WRENCH USED: BC 175291 CAL DUE DATE: 11/18/23;[06] VERIFIED STEP 5 BOLT REPLACED.

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