Service difficulty report · Stringer · Boeing 73773V

Difficulty date
July 20, 2023
Submitted
August 15, 2023
Operation
Air carrier
Aircraft
N7839A
Make and model
Boeing 73773V
Aircraft serial
30243
Aircraft time
63,332 hours, 39,016 cycles
Part
Stringer
Part number
UNKNOWN
Condition
Cracked
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

AREA AFT OF FORWARD CARGO BAY HAS A CRACKED STR AT THE AFT FASTENER. BS 500D+19; STR 25R LOCATION CLARIFICATION=CRACK IN STRINGER TO BE AT BS 520+15 STR 25R<[01] LOCATION CLARIFICATION=CRACK IN STRINGER DETERMINED TO BE AT BS 520+15 STR 25R;[02] VERIFY STEP 4;[03] VERIFIED STEP 4 COMPLETE.;[04] 'REPAIRED PER EA 23-153-02341. THIS IS A CATEGORY A REPAIR AS DEFINED IN 737-700 SRM 51-00-06.';[05] VERIFIED CORRECTIVE ACTION 4;[06] VERIFIED MEASUREMENT TABLE

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