Service difficulty report · Angle · Boeing 7378H4

Difficulty date
July 2, 2024
Submitted
July 19, 2024
Operation
Air carrier
Aircraft
N8639B
Make and model
Boeing 7378H4
Aircraft serial
60086
Aircraft time
33,669 hours, 16,222 cycles
Part
Angle
Condition
Corroded
Location
Zone 100
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 RH TRANSITION ANGLE (SIDEPLATE) CORRODED STA 772J TO 767; RBL 21. AFT CARGO RH TRANSITION ANGLE (SIDEPLATE) CORRODED AROUND NUTPLATES STA 772J TO 767 RBL 21.<[01] REMOVED CORROSION PER SRM 53-00-53-1A-2 (0.035' REMAINING THICKNESS). TRANSITION ANGLE (SIDEPLATE) IS OUT OF LIMITS PER SRM 53-00-53-1A-2.;[02] REMOVED RH TRANSITION ANGLE FROM STA 727E+10? TO 767; RBL 21 PER SRM 53-00-53-2R-6.;[03] LOCATED NUTPLATE HOLES ON NEW TRANSITION ANGLE REPAIR PART PER SRM 51-40-02.;[04] FABRICATED NEW RH TRANSITION ANGLE (SIDE PLATE) SECTION FROM STA. 727E+10 TO 767; DRILLED AND COUNTERSINK IAW SRM 53-00-53-2R-5.;[05] VERIFIED FABRICATED NEW RH TRANSITION ANGLE (SIDE PLATE) SECTION FROM STA. 727E+10 TO 767; DRILLED AND COUNTERSINK IAW SRM 53-00-53-2R-5.;[06] INSTALLED NUT PLATES ON NEW RH TRANSITION SIDE PLATE IAW SRM 51-40-10. TIME: 12:30AM DATE: 07/07/2024.;[07] VERIFIED. INSTALLATION OF NUT PLATES ON NEW RH TRANSITION SIDE PLATE IAW SRM 51-40-10. TIME: 12:30AM DATE: 07/07/2024. SIGN OFF FOR CORRECTIVE ACTION #6.;[08] REPLACED 3 EA. BONDED NUT PLATES AT RH TRANSITION ANGLE PER SRM 51-40-10. INSTALLED 07/08/2024 01:30 AM.;[09] VERIFIED REPLACED 3 EA. BONDED NUT PLATES AT RH TRANSITION ANGLE PER SRM 51-40-10.;[10] REPAIRED RH TRANSITION ANGLE (SIDEPLATE) SECTION FROM STA 727E+10 TO 767; RBL 21 PER SRM 53-00-53-2R-5 AND SRM 53-00-53-1A-2.;[11] INSPECTED WORK PERFORMED

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