Service difficulty report · Sidewall Support · Boeing 7378

Difficulty date
October 10, 2023
Submitted
October 31, 2023
Operation
Air carrier
Aircraft
N8716B
Make and model
Boeing 7378
Aircraft serial
42544
Aircraft time
13,018 hours, 5,787 cycles
Part
Sidewall Support
Part number
UNKNOWN
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

CORROSION AFT CARGO BAY L/H FLOOR TO SIDEWALL SUPPORT PLATE MULTIPLE AREAS AROUND NUT PLATE HOLES BS727G+18 TO BS767 LBL22 WL156<[01] VERIFIED STEPS 1;2;3 COMPLETE.;[02] EVALUATED CORROSION ON ACB LH FLOOR TO SIDEWALL SUPPORT; FUND TO BE OUT OF LIMITS; REMOVED DAMAGED SECTION; BS 727G+10 TO 787+8. REMOVED DAMEGED SECTION; FABRICATED; LOCATED AND DRILLED; APPLIED CHEMICAL CONVERSION COATING; PRIMED AND INSTALLED REPAIR PARTS ALL IAW; SRM 51-40-02-0G-0;SRM 51-40-05-0G-0; AMM 51-21-72-370-804; SRM 51-20-01-0G-0; SRM 53-00-53-2R-5; DWG 146A7500.;[03] VERIFIED MEASUREMENT FIELDS.

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