Service difficulty report · Skin · Boeing 7377H4

Difficulty date
July 21, 2023
Submitted
August 23, 2023
Operation
Air carrier
Aircraft
N902WN
Make and model
Boeing 7377H4
Aircraft serial
36615
Aircraft time
51,130 hours, 29,802 cycles
Part
Skin
Part number
UNKNOWN
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 FOUND ON RT HORIZONTAL STABILIZER LOWER SKIN AT STAB STA 193.90; 16.5' FROM FRONT SPAR; I/B ROW. CRACK LENGTH : 1' CRACK FOUND ON RT HORIONTAL STABILIER LOWER SKIN AT STAB STA 193.90 16.5' FROM FRONT SPAR I/B ROW. CRACK LENGTH : 1'<[01] REPAIRED RT HORIZONTAL STABILIZER LOWER SKIN AT STAB STA 193.90; 16.5' FROM FRONT SPAR; I/B ROW. AS PER SRM 55-10-01-2R-11.;[02] THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56;000 FLIGHT CYCLES THAT REQUIRES A DVI AND AN LFEC EVERY 9;000 FLIGHT CYCLES; REF B737 SRM 55-10-01-2R-11 STEP 5(A) TABLE 204.;[03] RII -- VERIFIED STEPS 1 AND 2.

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