Service difficulty report · Beam · Boeing 7378H4

Difficulty date
November 25, 2024
Submitted
December 27, 2024
Operation
Air carrier
Aircraft
N8512U
Make and model
Boeing 7378H4
Aircraft serial
38816
Aircraft time
26,682 hours, 13,283 cycles
Part
Beam
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

LIGHT CORROSION ON LONGITUDINAL STUB BEAM LOCATED AT STA 947+3 RBL 24.(MARKED)<[01] REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS REMOVED .030? FROM .071. OUT OF LIMITS PER SRM 53-70-51-1A-1.;[02] REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS REMOVED .030? FROM .071. OUT OF LIMITS PER SRM 53-70-51-1A-1 INSPECTED AND VERIFIED;[03] REMOVED INTERCOSTAL BS 947.5-967; RBL 24 FOR REPLACEMENT PER SRM 51-40-02.;[04] LOCATED AND DRILLED NEW STUB BEAM PER SRM 51-40-02.<BR>OK TO INSTALL.;[05] INSPECTED WORK IN C/A #4 OK TO INSTALL;[06] REMOVED AND REPLACED LONGITUDINAL STUB BEAM LOCATED AT STA 947+3 RBL 24. (INTERCOSTAL) PER SRM 51-40-02.;[07] VERIFIED THE REMOVAL AND REPLACEMENT OF LONGITUDINAL STUB BEAM LOCATED AT STA 947+3 RBL 24. (INTERCOSTAL) PER SRM 51-40-02.NO DEFECT.(RII);[08] REMOVED AND REPLACED LONGITUDINAL STUB BEAM LOCATED AT STA 947+3 RBL 24.(INTERCOSTAL) PER SRM 51-40-02;;[09] C/W INSPECTION;[10] C/W INSPECTION

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