Service difficulty report · Skin · Boeing 7377Q8

Difficulty date
May 12, 2022
Submitted
June 16, 2022
Operation
Air carrier
Aircraft
N7876A
Make and model
Boeing 7377Q8
Aircraft serial
29355
Aircraft time
50,771 hours, 27,451 cycles
Part
Skin
Condition
Cracked
Location
Lh Hor 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

FOUND 1 EA CRACK ON L/H HORIZONTAL STABILIZER IN-SPAR LOWER SKIN AT STA 193.90 RIB; 16' COMMON TO THE FRONT SPAR. / [01] TRIMED OUT LOWER SKIN DAMAGED AREA AT HORIZONTAL STABILIZER IN-SPAR AT STA 193.90 RIB 16 L=3.550' W=1.8' PER SRM 55-10-01-2R-11 REP. 11;[02] VERIFIED CORRECTIVE ACTION 1.;FABRICATED -1 DOUBLER FROM 2024T3 .080' LOT# 1483761-1 AND -2 FILLER FROM 2024 T3 .063' LOT# 1477768-1 AT L/H HORIZONTAL STABILIZER IN SPAR LOWER SKIN STA 193.90 RIB; 16' TO THE FRONT SPAR PER SRM 55-10-01-2R-11 REP. 11. <BR>OK TO TREAT AND PRIME REPAIR PARTS APPLIED CHEMICAL CONVERSION COATING AND PRIMED REPAIR PARTS AND REPAIR AREA PER SRM 55-10-01-2R-11 REP.11.INSTALLED REPAIR PARTS FILLER AND DOUBLER AT L/H HORIZONTAL STABILIZER IN SPAR LOWER SKIN STA 193.90 RIB 16' COMMON TO THE FRONT SPAR.<BR>APPLIED SEALANT AROUND THE EDGES OF REPAIR DOUBLER PER SRM 55-10-01-2R-11 REP 11;APPLIED PAINT AT REPAIR AREA L/H HORIZONTAL STABILIZER IN SPAR LOWER SKIN STA 193.90 PER SRM 55-10-01-2R-11 REP. 11

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