Service difficulty report · Angle · Boeing 7378H4

Difficulty date
October 20, 2024
Submitted
November 25, 2024
Operation
Air carrier
Aircraft
N8509U
Make and model
Boeing 7378H4
Aircraft serial
36925
Aircraft time
26,850 hours, 13,267 cycles
Part
Angle
Condition
Corroded
Location
Zn 200 Fus Top
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

FORWARD PASSENGER COMPARTMENT FLOOR STRUCTURE WET AREA UNDER FWD ENTRY DOOR THRESHOLD HAS MULTIPLE LARGE AREAS OF CORROSION ON CREASE BEAM. (MARKED)<[01] REMOVED CORROSION IAW SRM 51-10-02. CORROSION REMOVAL OUT OF ALLOWABLE LIMITS PER SRM 53-10-15-IA-1.;[02] REMOVED DAMAGED CREASE BEAM Z ANGLE IAW SRM 51-40-02.;[03] WORK ENTRY #2 ENTER IN ERROR. REMOVED DAMAGED CREASE BEAM ?L? ANGLE IAW SRM 51-40-02.;[04] LOCATED AND DRILLED CREASE BEAM ?L? ANGLE IAW SRM 51-40-02. OK TO INSTALL 'L' ANGLE.;[05] VERIFIED LOCATED AND DRILLED CREASE BEAM ?L? ANGLE IAW SRM 51-40-02. OK TO INSTALL 'L' ANGLE.;[06] REMOVED AND REPLACED CREASE BEAM ?L? ANGLE IAW SRM 51-40-02.

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