Service difficulty report · Skin · Boeing 7377H4

Difficulty date
May 1, 2022
Submitted
June 14, 2022
Operation
Air carrier
Aircraft
N286WN
Make and model
Boeing 7377H4
Aircraft serial
32471
Aircraft time
57,746 hours, 34,276 cycles
Part
Skin
Condition
Cracked
Location
L/H Horiz. 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 FOUND AT LEFT HORIZONTAL STABILIZER LOWER SKIN STAB STA 193.90 ;17' FROM FRONT SPAR ;I/B FASTENER ROW.CRACK LENGTH = 1.234' CRACK FOUND AT LEFT HORIONTAL STABILIER LOWER SKIN STAB STA 193.90 17' FROM FRONT SPAR I/B FASTENER ROW.CRACK LENGTH = 1.234' / [01] REMOVED PAINT BY STRIPPING AT LT HORIZ STAB LOWER SKIN ON DAMAGED AREA REF B737-700 AMM 51-21-11-150-810.;[02] REMOVED FASTENERS AT LT HORIZ STAB LOWER SKIN STA 193.90 DAMAGED AREA REF B737-700 SRM 51-40-02-0G-0.[13] FABRICATED REPAIR PARTS; DOUBLER AND FILLER FOR LT HORIZ STAB LOWER SKIN STA 193.90 MATERIAL USED 2024 T3 0.090' PO# 1727238 AND 2024 T3 0.063' PO# 1735552 REF B737-700 SRM 55-10-01-2R-11 FIG 204 TABLE 201.;[22] INSTALLED REPAIR DOUBLER AND FILLER AT LT HORIZ STAB LOWER SKIN STA 193.90 REF B737-700 SRM 55-10-01-2R-11 FIG 204 TABLE 201.[27] ACCOMPLISHED REPAIR OF CRACK AT LT HORZ STAB LOWER SKIN BS 193.90; 17' FROM FRONT SPAR PER REF B737-700 SRM 55-10-01-2R-11 FIG 204 TABLE 201.;[28] COMPLETE

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