Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
December 9, 2020
Submitted
January 13, 2021
Operation
Air carrier
Aircraft
N434WN
Make and model
Boeing 7377H4
Aircraft serial
32454
Aircraft time
60,441 hours, 35,783 cycles
Part
Stringer
Condition
Cracked
Location
Fwd Cargo
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

CRACK STRINGER 26R LOCATED BS 540 FWD CARGO COMPARTMENT. EVALUATED STRINGER 26R LOCATED BS 540 FWD CARGO COMP AND CRACK IS BEYOND OF ALLOWABLE DAMAGE LIMITS, IAW SRM B737-700 53-00-03-1A-1 FIG 103 DETAIL A. PERFORMED PERMANENT REPAIR, IAW SRM B737-700 53-00-03-2R-1. FABRICATED REPAIR PARTS CHANNEL 7075-T0 0.050' PO 2020 193461 ANGLES (2 EA) FROM 7075T0 0.050 PO 2020 193461. REPLACEMENT STRINGER SECTION FROM 7075T0 0.045' PO 2020 203305 HEAT TREATMENT REPAIR PARTS AND CONVERTED FROM T0 TO T6, IAW BAC 5602 TABLE X TEMPERATURE CONTROLLED P/N P3015G0E500000 S/N 112820025 DUE DATE 25FEB21.

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