Service difficulty report · Stringer · Boeing 737*

Difficulty date
October 12, 2021
Submitted
November 11, 2021
Operation
Air carrier
Aircraft
N757LV
Make and model
Boeing 737*
Aircraft serial
29850
Aircraft time
74,896 hours, 43,938 cycles
Part
Stringer
Condition
Cracked
Location
Fuselage
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 STRINGER 25R AT BS 540 FWD CARGO COMPARTMENT ; 2021-461921 / [01] TOOL USED: ULTRASONIC EQUIPMENT: P/N: 45 MG; S/N: 130064101 DUE DATE: 11-MAR-22; [02] TOOL USED EDDY CURRENT PN/ NORTEC 600D; SN/60009161631; DUE DATE/ 01DEC21; [03] TOOL USED PRECISION RADIUS GAUGE P/N: 2204A3 ; S/N: AE-408657 DUE DATE : 02-NOV-21; [04] TOOL USED: TEMPERATURE CONTROLLER P/N P3015GOES00000 S/N 142811020 DUE DATE: 21-JAN -22; [05] PERFORMED PERMANET REPAIR ON STRINGER 25R BETWEEN BS 500C AND BS 540 FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1 AND DWG # 143A3230 REV :-. SEE INDIVIDUAL SIGNOFFS BELOW.; [06] PERFORMED PERMANENT REPAIR ON STRINGER 25R BETWEEN BS 500C AND BS 540 FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1 AND DWG # 143A3230 REV :-. SEE INDIVIDUAL SIGNOFFS BELOW.; [07] PERFORMED PERMANENT REPAIR ON STRINGER 25R BETWEEN BS 500C AND BS 540 FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1 AND DWG # 143A3230 REV :-. SEE INDIVIDUAL SIGNOFFS BELOW. RII