Service difficulty report · Skin · Boeing 7377BD

Difficulty date
August 22, 2022
Submitted
October 3, 2022
Operation
Air carrier
Aircraft
N555LV
Make and model
Boeing 7377BD
Aircraft serial
36726
Aircraft time
36,017 hours, 21,105 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 @ LT HORIZ. STAB. STA 193.90; 17.75' FROM T/E LENGTH .500' CRACK FOUND @ LT HORI. STAB. STA 193.90 17.75' FROM T/E LENGTH .500' / [01] REMOVED EXISTING FASTENERS AND CUT OUT CRACK AREA ; ON L/H HORIZONTAL ATAB. LOWER INS PAR SKIN; PER REF SRM 55-10-01-2R-11[09] FABRICATED DOUBLER AND FILLER PER REFERENCE SRM 55-10-01-2R-11.;[10] MAKE COUNTERSINK REPAIR WASHER TO BE INSTALLED PER REFERENCE SRM 55-10-01-2R-11.;[11] VERIFIED STEPS 9 AND 10. OK TO TREAT AND PRIME PARTS AND AIRCRAFT REPAIR AREA.;[12] TREATED AND PRIMED DOUBLER; FILLER AND REPAIR AREA PER REFERENCE AMM 51-21-41-370-802 AND 51-21-72-370-804.;[13] INSTALLED COUNTERSINK REPAIR WASHERS PER REFERENCE SRM 55-10-01-2R-11.;[14] VERIFIED STEP 12;[15] VERIFIED STEP 13;[16] OK TO INSTALL DOUBLER AND FILLER.;[17] INSTALLED DOUBLER AND FILLER WITH BMS 5-95 SEALANT BETWEEN THE MATING SURFACES PER REFERENCE 55-10-01-2R-11.;[22] INSTALLED DOUBLE AND FILLER REPAIR WITH BMS 5-95 SEALANT BETWEEN THE MATING SURFACES PER REFERENCE 55-10-01-2R-11. ; THIS IS CATEGORY B REPAIR ; INSPECTION THRESHOLD AT 56.000 TOTAL FLIGHT CYCLES AND REPEAT INSPECTIONS INTERVAL 9.000FLIGHT CYCLES; REF SRM 55-10-01-2R-11;[23] VERIFIED STEP 22. THIS IS CATEGORY B REPAIR ; INSPECTION THRESHOLD AT 56.000 TOTAL FLIGHT CYCLES AND REPEAT INSPECTIONS INTERVAL 9.000FLIGHT CYCLES; REF SRM 55-10-01-2R-11

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