Service difficulty report · Skin · Boeing 7377H4

Difficulty date
March 21, 2023
Submitted
May 3, 2023
Operation
Air carrier
Aircraft
N436WN
Make and model
Boeing 7377H4
Aircraft serial
32456
Aircraft time
66,420 hours, 39,287 cycles
Part
Skin
Condition
Cracked
Location
Zn 300 Stabilize
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 ON LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STA 203.10 RIB ; 23 INCHES FROM FRONT SPAR; INBOARD SIDE OF RIB . CRACK LENGTH IS 1.500 INCHES 2023-208536<[01] TOOL USED EDDY CURRENT FLAW DETECTOR P/N:NORTEC 600D; S/N:220273012; DUE DATE: 17-DEC-23.;[02] EQUIPMENT P/N PHASEC 3D; S/N 800YBRK; DUE DATE: 22-APR-23 WAS USED;[03] REPAIRED LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STA 203.10 RIB ; 23 INCHES FROM FRONT SPAR; INBOARD SIDE OF RIB. IAW B737-700 SRM 55-10-01-2R-11 SEE INDIVIDUAL SING-OFF BELOW;[04] REPAIRED LH HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STA 203.10 RIB ; 23 INCHES FROM FRONT SPAR; INBOARD SIDE OF RIB. IAW B737-700 SRM 55-10-01-2R-11 SEE INDIVIDUAL SING-OFF BELOW<BR>RII

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