Service difficulty report · Skin · Boeing 737*

Difficulty date
February 4, 2022
Submitted
March 22, 2022
Operation
Air carrier
Aircraft
N946WN
Make and model
Boeing 737*
Aircraft serial
36918
Aircraft time
38,769 hours, 23,511 cycles
Part
Skin
Condition
Cracked
Location
L/H Horiz. Stab.
Stage of operation
UK
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 LH HORIZONTAL LOWER SKIN STAB STA 193.90; 17' FROM REAR SPAR I/B ROW; LENGTH APPROX .875'. CRACK FOUND AT LH HORIONTAL LOWER SKIN STAB STA 193.90 17' FROM REAR SPAR I/B ROW LENGTH APPROX .875'. / [01] APPLIED STRIPPING ON SKIN SURFACE OF REPAIR AREA IN IAW AMM 51-21-11-150-801[18] INSTALLED REPAIR PART AT L/H. HORIZONTAL STABILIZER LOWER SKIN STA. 193.90. 17' FROM REAR SPAR; IAW. B-737-700 SRM.55-10-01-2R-11 FIGURE 204;[19] VERIFIED 18.;[20] APPLIED TOP-COAT TO REPAIR AREA IAW. B-737-700 AMM. 51-21-73-370-803;[21] ACCOMPLISHED PERMANENT REPAIR OF CRACK AT L/H. STAB. LOWER SKIN STA. 193.90 PER B-737-700 SRM. 55-10-01-2R-11.;[22] REMOVED THE DAMAGE AREA OF L/H HORIZONTAL STABILIZER LOWER SKIN STA 193.90 17' FROM REAR SPAR IN IAW SRM 51-10-02-0G-0 AND 55-10-01-2R-11 FIG 204 ; COMPLETED FABRICATIONS OF REPAIR PARTS; DOUBLER AND FILLER. MAT. USED FOR DOUBLER 2024-T3 0.090'. MAT. USED FOR FILLER 2024-T3 0.071' IAW. B-737-700 SRM.51-10-01-2R-11 FIGURE 204 ; INSTALLED REPAIR PART AT L/H. HORIZONTAL STABILIZER LOWER SKIN STA. 193.90. 17' FROM REAR SPAR; IAW. B-737-700 SRM.55-10-01-2R-11 FIGURE 204;[23] VERIFIED 20-22.