Service difficulty report · Rib · Boeing 7377CT

Difficulty date
January 12, 2021
Submitted
February 18, 2021
Operation
Air carrier
Aircraft
N566WN
Make and model
Boeing 7377CT
Aircraft serial
32753
Aircraft time
61,404 hours, 31,141 cycles
Part
Rib
Condition
Cracked
Location
Horizontal Stab
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

CRACK INSPAR RIB 92.70 AT 19 INCH OF FRONT SPAR LT HORIZONTAL STAB. PERFORMED REPAIR ON INSPAR RIB 92.70 AT 19 INCH OF FRONT SPAR LT HORIZONTAL STABILIZER IAW SRM B737-700 55-10-09-2R-4 REPAIR 4. MATERIAL USED: EXTRUSION 7075-T76511 BAC1505-101210 PO 000 BATCH 201958870200102; ALUMINUM SHEET 7075-T0 0.063' PO 2020 180549; ALUMINUM SHEET 7075-T6 0.010' PO 2019 552973.

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