SDR 2020F00299

Service difficulty report · Keelbeam · Boeing 7572G5

Difficulty date
May 2, 2020
Submitted
June 3, 2020
Operation
Air carrier
Aircraft
N752CX
Make and model
Boeing 7572G5
Aircraft serial
24451
Aircraft time
62,593 hours, 20,672 cycles
Part
Keelbeam
Part number
144N80234
Condition
Corroded
Location
Fuselage
Part time
62,593 hours, 20,672 cycles
Stage of operation
IN
How discovered
V
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

NON-ROUTINE 2832N258 DISCREPANCY. RMWW, CORROSION ON KEEL BEAM RIGHT CHORD UPPER SURFACE IN RADIUS OF TAB THAT ATTACHES TO STA 1120 GEAR DOOR ACTUATOR SUPPORT BEAM. CORROSION RUNS UNDER SUPPORT BEAM. CORRECTIVE ACTION. REMOVED CORROSION ON RT KEEL BEAM CHORD UPPER SURFACE AT STA 1120, RBL 7.5, MINIMUM REMAINING THICKNESS 0.187", REMOVED 0.063", ORIGINAL THICKNESS 0.250". REWORK SUBSTANTIATED AND REPAIRED IAW ENGINEERING ORDER CONTROL NR 20178.

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