Service difficulty report · Skin · Boeing 7377H4

Difficulty date
June 7, 2021
Submitted
July 26, 2021
Operation
Air carrier
Aircraft
N441WN
Make and model
Boeing 7377H4
Aircraft serial
29837
Aircraft time
60,855 hours, 35,873 cycles
Part
Skin
Condition
Cracked
Location
Horizontal Stab
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 HORIZONTAL STABILIZER LH SIDE LOWER IN-SPAR SKIN AT STATION 193.90 RIB; 16.250 INCH FROM FRONT SPAR; INBD SIDE OF RIB. CRACK LENGTH IS 0.900 INCH. ; 2021-269516 / [01] TOOL USED P/N: NORTEC 600; S/N: 60007161486; DUE DATE : 30-NOV-21; [02] REPAIRED ON HORIZONTAL STABILIZER LH SIDE LOWER INSPAR SKIN STATION 193.90 RIB 16.250 INCH FROM FRONT SPAR INBOARD SIDE OF RIB IAW B737-700 SRM 55-10-01-2R-11 RAPIR 11; [03] REPAIRED HORIZONTAL STABILIZER LH SIDE LOWER INSPAR SKIN STATION 193.90 RIB 16.250 INCH FROM FRONT SPAR INBOARD SIDE OF RIB IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11; [04] REPAIRED HORIZONTAL STABILIZER LH SIDE LOWER INSPAR SKIN STATION 193.90 RIB 16.250 INCH FROM FRONT SPAR INBOARD SIDE OF RIB IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11.RII.

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