Service difficulty report · Angle · Boeing 7378H4

Difficulty date
February 6, 2023
Submitted
March 13, 2023
Operation
Air carrier
Aircraft
N8662F
Make and model
Boeing 7378H4
Aircraft serial
36936
Aircraft time
27,185 hours, 12,716 cycles
Part
Angle
Condition
Corroded
Location
Zn 100 Fus Lower
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

AFT CARGO L/H TRANSITION ANGLE HAS CORROSION AROUND FASTENER HOLES STA 727G THRU 747.<[01] COMPLIED WITH TOOL REQUIREMENT.;[02] COMPLIED WITH MEASUREMENTS.;[03] REMOVED CORROSION PER SRM 53-00-53-1A-2 (REMAINING THICKNESS 0.036'). TRANSITION ANGLE IS OUT OF LIMITS PER SRM 53-00-53-1A-2.;[04] REMOVED TRANS ANGLE FROM 727G+10 TO STA 753;[05] LOCATED HOLES ON REPAIR SPLICE SIDEPLATE AND LH TRANSITION ANGLE AT STA 754.5; LBL 21 PER SRM 53-00-53-2R-6.;[06] INSPECTED WORK PERFORMED ON C/A #5;[07] DRILLED THE NEW TRANSITION ANGLE PER SRM 51-40-02;[08] FABRICATED REPAIR PARTS; TREATED AND PRIMED PER SRM 53-00-53-2R-6 FOR LH TRANSITION ANGLE STA 727G TO 747.;[09] VERIFIED FABRICATED REPAIR PARTS; TREATED AND PRIMED PER SRM 53-00-53-2R-6 FOR LH TRANSITION ANGLE STA 727G TO 747.;[10] INSTALLED NEW BONDED NUTPLATES ON LH TRANSITION ANGLE STA 727G TO 747 PER SRM 51-40-10-2R-0 ON 17 FEB; 2023 @ 01:45 PM.;[11] C/W INSPECTION OF STEP #10;[12] INSTALLED FASTENERS ON THE NEW TRANSITION ANGLE PER SRM 51-40-02.;[13] C/W INSPECTION OF STEP #12;[14] INSTALLED NEW BONDED NUTPLATES 20 EA ON LH TRANSITION ANGLE SPLICE REPAIR STA 727G TO 747 PER SRM 51-40-10-2R-0 ; ON 21 FEB; AT 1200PM.;[15] VERIFIED <BR>INSTALLED NEW BONDED NUTPLATES 20 EA ON LH TRANSITION ANGLE SPLICE REPAIR STA 727G TO 747 PER SRM 51-40-10-2R-0 ; ON 21 FEB; AT 1200PM.;[16] REPAIRED LH TRANSITION ANGLE 727G TO 747; LBL 21 PER SRM 53-00-53-2R-6.

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