Service difficulty report · Support Plate · Boeing 7378H4

Difficulty date
January 10, 2024
Submitted
January 29, 2024
Operation
Air carrier
Aircraft
N8678E
Make and model
Boeing 7378H4
Aircraft serial
36735
Aircraft time
27,158 hours, 13,228 cycles
Part
Support Plate
Part number
UNKNOWN
Condition
Corroded
Location
Bs 727h-767
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 R/H FLOOR TO SIDEWALL SUPPORT PLATE HAS MULTIPLE AREAS AROUND NUT PLATE HOLES BS727H+10' TO BS767 RBL22 WL156<[01] PARTIAL UPDATE ON STEP 4;[02] CORROSION ON AFT CARGO BAY R/H FLOOR TO SIDEWALL SUPPORT PLATE SECTION BS727F+11 TO 767 FOUND TO BE OUT OF LIMITS. REMOVED; FABRICATED AND INSTALLED NEW FLOOR TO SIDEWALL SUPPORT PLATE SECTION AT BS 727F+11' TO 767 AND SPLICE AT BS 727F+11' PER SRM 53-00-53-2R-5; DWG 146A7500; AND SRM 51-40-05-0G-0;[03] CORROSION ON AFT CARGO BAY R/H FLOOR TO SIDEWALL SUPPORT PLATE SECTION BS727F+11 TO 767 FOUND TO BE OUT OF LIMITS. REMOVED; FABRICATED AND INSTALLED NEW FLOOR TO SIDEWALL SUPPORT PLATE SECTION AT BS 727F+11' TO 767 AND SPLICE AT BS 727F+11' PER SRM 53-00-53-2R-5 STEP 4. D - N; DWG 146A7500; AND SRM 51-40-05-0G-0;[04] VERIFIED CORRECTIVE ACTION STEPS 2 AND 3. VERIFIED MEASUREMENTS TABLE AND TASK CARD COMPLETE.

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