Service difficulty report · Angle · Boeing 7378H4

Difficulty date
October 19, 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

PASSSENGER AREA STA 984 ; LBL47 CREASE BEAM HAS CORROSION ON VERTICAL SURFACE .<[01] CORROSION FOUND TO BE OUT OF LIMITS PER SRM 53-70-15-1A-1. <BR><BR>Z ANGLE REMOVED PER SRM 51-40-02; FOR REPLACEMENT.;[02] VERIFIED OUT OF LIMITS CORROSION ON Z ANGLE PER SRM 53-70-15-1A-1.;[03] LOCATED AND DRILLED NEW Z ANGLE PER SRM 51-40-02>;[04] VERIFIED WORK SIGNED IN CA# 3 .......LOCATED AND DRILLED NEW Z ANGLE PER SRM 51-40-02 RII;[05] REMOVED FASTENERS AND HI-LOCKS IN MIDDLE OF DOOR THRESHOLD AND JUST FORWARD OF THRESHOLD IAW SRM 51-40-02 STILL REQUIRES MORE REMOVAL OF FASTENERS AND HI-LOCKS FOR THRESHOLD REMOVAL. THIS SHOULD BE STEP 3 AND TROY ROSSMAN SIGN OFF FOR LINE 4. ORIGINAL WRITE UP WAS SIGNED OFF ON WRONG CARD PER SAM T. 98405.;[06] OK TO INSTALL.;[07] 6. TROY ROSSMAN (TECHNICIAN); 08-NOV-2024 15:22 UTC<BR>OK TO INSTALL. CREASE BEAM (Z-ANGLE);[08] OK TO INSTALL CREASE BEAM ( Z- ANGLE);[09] 8. TROY ROSSMAN (TECHNICIAN); 08-NOV-2024 17:02 UTC<BR>OK TO INSTALL CREASE BEAM ( Z- ANGLE) INSPECTED.;[10] INSTALLED ALL FASTENERS COMMON TO HORIZONTAL FLANGE OF NEW CREASE BEAM ( Z-ANGLE) PER SRM 51-40-02.;[11] INSPECTED INSTALLED ALL FASTENERS COMMON TO HORIZONTAL FLANGE OF NEW CREASE BEAM ( Z-ANGLE) PER SRM 51-40-02. RII;[12] C/W INSPECTION;[13] C/W RII INSPECTION;[14] VERIFIED REPAIR AT 984; LBL 47 (Z-ANGLE) CREASE BEAM REPLACEMENT PER SRM 51-40-02.;[15] VERIFIED REPAIR AT 984; LBL 47 (Z-ANGLE) CREASE BEAM REPLACEMENT PER SRM 51-40-02. C/W RII INSPECTION.

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