Service difficulty report · Floor Support · Boeing 7378H4

Difficulty date
August 3, 2024
Submitted
August 28, 2024
Operation
Air carrier
Aircraft
N8698B
Make and model
Boeing 7378H4
Aircraft serial
36977
Aircraft time
26,776 hours, 13,241 cycles
Part
Floor Support
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

CORROSION FOUND ON INTERCOSTAL BETWEEN STA 947 TO STA 967 AT LBL 50.<[01] REMOVED CORROSION PER SRM 51-10-02. DAMAGE REMOVAL IS OUT OF MANUAL LIMITS PER SRM 53-70-51-1A-1. MAX MATERIAL REMOVED 0.030?.;[02] RII- C/W INSPECTION AS REQUIRED C/A #1. RICHARD BLACKBURN (TECHNICIAN); 03-AUG-2024 00:49 UTC<BR>REMOVED CORROSION PER SRM 51-10-02. DAMAGE REMOVAL IS OUT OF MANUAL LIMITS PER SRM 53-70-51-1A-1. MAX MATERIAL REMOVED 0.030?.;[03] RECIEVED NEW PART MATCH DRILLED PER SRM 51-40-02 AND INSTALLED CLICK BOND NUT PLATES PER SRM 51-40-10 AT TIME 1600 AND DATE AUGUST 08 2024.;[04] REQUIRED PULL TEST AND INSTALLATION.;[05] C/W INSP. RECIEVED NEW PART MATCH DRILLED PER SRM 51-40-02 AND INSTALLED CLICK BOND NUT PLATES PER SRM 51-40-10 AT TIME 1600 AND DATE AUGUST 08 2024;[06] INSTALLED NEW REPLACEMENT INTERCOSTAL BETWEEN STA 947 TO STA 967 AT LBL 50 PER SRM 51-40-02. SEE ABOVE CORRECTIVE ACTIONS FOR INDIVIDUAL STEPS;[07] ALL WORK ACCOMPLISHED ON TTG8Q00UYZC6 THE AFT LAVATORY MOUNT STRUCTURE IS CORRODED AT STA 947 RBL 51.;[08] INSPECTED AS REQUIRED. CORRECTIVE ACTION #6 AND #7. VERIFIED WORK ACCOMPLISHED ON FAULT #TTG8Q00UYZC6

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