Service difficulty report · Skin · Boeing 7377H4

Difficulty date
June 22, 2021
Submitted
August 4, 2021
Operation
Air carrier
Aircraft
N940WN
Make and model
Boeing 7377H4
Aircraft serial
36900
Aircraft time
39,596 hours, 24,067 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

LT HORIZONTAL STAB. LWR SKIN STAB STA 193.90-1; CRACK NOTED 16' AFT OF FRONT SPAR LE. CRACK LENGTH 1.3' / [01] -CUT OUT DAMAGED AREA ON LT HORIZONTAL STABILIZER LOWER SKIN IAW SRM 55-10-01-2R-11 STEP 4 B;C. CUT OUT DIMENSIONS: L=1.70'; W=1.60'; [02] VERIFIED CUT OUT DAMAGED AREA ON LT HORIZONTAL STABILIZER LOWER SKIN IAW SRM 55-10-01-2R-11 STEP 4 B;C. CUT OUT DIMENSIONS: L=1.70'; W=1.60; [03] -HFEC INSPECTION OF CUT EDGES REQUIRED PER SRM 55-10-01-2R-11 STEP 4 D(1); [04] ET INSPECTED CUT EDGE IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23; NO CRACKS NOTED.<BR><BR>CAL ID ATS1465 N600; [05] -FABRICATED REPAIR PARTS IAW SRM 55-10-01-2R-11 STEP 4. G THRU L AND TABLE 201 AND 202. PARTS MADE FROM: DOUBLER 2024T3 #0.080' LOT# 1447577-1; FILLER 2024T3#0.063' LOT # 1446328-1; [06] -APPLIED CHEMICAL CONVERSION COATING TO REPAIR PARTS AND SKIN CUT EDGES IAW SRM 55-10-01-2R-11 STEP 4. M; [15] REPAIRED LT HORIZONTAL STABILIZER LOWER SKIN AT STAB STA 193.90 16' AFT OF FRONT SPAR L/E IAW SRM 55-10-01-2R-11.

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