Service difficulty report · Skin · Boeing 7377H4

Difficulty date
March 6, 2023
Submitted
March 24, 2023
Operation
Air carrier
Aircraft
N936WN
Make and model
Boeing 7377H4
Aircraft serial
36643
Aircraft time
45,114 hours, 27,397 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 FOUND AT RIGHT HORIZONTAL STABILIZER LOWER SKIN STAB STA 193.90; 23' FROM FRONT SPAR ;I/B ROW. CRACK LENGTH -1' CRACK FOUND AT RIGHT HORIONTAL STABILIER LOWER SKIN STAB STA 193.90 23&#34; FROM FRONT SPAR I/B ROW. CRACK LENGTH -1&#34;<[01] TREATED AND PRIMED REPAIR PARTS AS PER B737 AMM 51-21-41-370-801 AND AMM 51-21-11-150-801;[02] VERIFIED STEP 1 <BR>OK TO INSTALL REPAIR; WASHER;FILLER AND REPAIR DOUBLER;[03] VERIFIED SELECTED REFERENCE WAS CORRECTLY SELECTED;[04] INSTALLED REPAIR AT R/H HORIZONTAL STABILIZER LOWER SKIN SS193.90; 23' FROM FRONT SPAR. REF SRM 55-10-01-2R-11 (REPAIR 11).;[05] VERIFIED STEP 4

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