Service difficulty report · Skin · Boeing 73776N

Difficulty date
May 9, 2022
Submitted
May 31, 2022
Operation
Air carrier
Aircraft
N7733B
Make and model
Boeing 73776N
Aircraft serial
32678
Aircraft time
50,055 hours, 25,216 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

LH HORIZONTAL STAB; LWR STAB SKIN CRACKED AT STAB STA 193.90; CUTOUT LOWER HORIZONTAL SKIN OF L/H HORIZONTAL STAB PER SRM 55-10-01-2R-11 STEP 4 (B) 2. AND DRILLED OUT EXISTING FASTENERS IN REPAIR AREA PER STEP 4 (F) 1. FABRICATED REPAIR DOUBLER PER SRM 55-10-01-2R-11 STEP4 G; DOUBLER FABRICATED FROM LOT #1468128-1 2024-T3; FILLER FABRICATED FROM LOT #1468136-12024-T3. FILLER FABRICATION;APPLIED CHEMICAL CONVERSION AND PRIMER PER SRM 55-10-01-2R-11 STEP 4 (M) AND (N);INSTALLED REPAIR DOUBLER IAW SRM 55-10-01-2R-11 REPAIR 11.TOTAL SURFACE AREA FOR REPAIR DOUBLER IS 78.375 SQUARE INCHES IAW SRM 55-10-01-2R-11 REPAIR 11 STEP 1 H APPLIED SEALANT AROUND EDGES OF DOUBLER IAW SRM 55-10-01-2R-11 REPAIR 11 STEP 4Q;

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