Service difficulty report · Bear Strap · Boeing 7377H4

Difficulty date
August 5, 2021
Submitted
September 10, 2021
Operation
Air carrier
Aircraft
N754SW
Make and model
Boeing 7377H4
Aircraft serial
29849
Aircraft time
74,935 hours, 44,224 cycles
Part
Bear Strap
Condition
Cracked
Location
Bs 293
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 INDICATION FOUND AROUND FASTENERS ON BEAR STRAP (2EA) LOCATED BETWEEN BS 293 TO BS 293.5 AND BETWEEN STR 8 AND STR 9 RH SIDE IN FWD GALLEY AREA LENGTH (1) CRACK 0.260 INCH; LENGTH (2) CRACK IS 0 ; 2021-368567 / [01] TOOL USED P/N: NORTEC 500D; S/N: N500X12101V022240; DUE DATE: 01-DEC-21.; [02] TOOL USED PN: NORTEC 600D; SN: 210138503; CAL DUE DATE: 05-MAR-22; [03] TOOL USED CALIB PIE DE REY P/N : DIGITAL 150 S/N : AE- 412599 DUE DATE : 21-MAY-22; [04] TOOL USED: MICROMETER P/N: 293-831; S/N: 35031311; DUE DATE: 18-AUG-21; SMALL HOLE GAUGES P/N: 154-901; S/N: AE-412972; DUE DATE: 28-JUL-22; [05] TOOL USED: P/N: NORTEC 600D; S/N: 210138003; DUE DATE: 05-MAR-22.; [06] TOOL USED CALIPER PN: 500-172-20 SN: B21015879 DUE DATE : 10-AUG-22; [07] ULTRASOUND MEASURED ON AFFECTED AREA OF BEARSTRAP IAW NDT MANUAL PART 4 51-00-00 PROCEDURE 3 THICKNESS= 0.090 INCH. TOOL USED ULTRASONIC GAGE P/N: 45MG; S/N: 130060401; DUE DATE: 22-APR-22.; [08] TOOL USED: BENCH TOP SCALE P/N: DSY-1100 ; S/N: 37057 DUE DATE : 07-MAY-22; [09] REPAIRED BEAR STRAP LOCATED BETWEEN BS 293 TO BS 293.5 AND BETWEEN STR 8 AND STR 9 RH SIDE IN FWD GALLEY AREA IAW EA 21-153-02363; [10] TASK CARD COMPLETED <BR>RII

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