Service difficulty report · Skin · Boeing 7377BD

Difficulty date
July 9, 2024
Submitted
August 9, 2024
Operation
Air carrier
Aircraft
N7749B
Make and model
Boeing 7377BD
Aircraft serial
36724
Aircraft time
45,605 hours, 24,000 cycles
Part
Skin
Condition
Cracked
Location
Zone 300
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 ON RT HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB; 9' APPROX. FROM L/E; I/B RIB ROW (CRACK LENGTH 1') CRACK FOUND ON RT HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT STATION 193.90 RIB 9' APPROX. FROM L/E I/B RIB ROW (CRACK LENGTH 1')<[01] ACCOMPLISHED RT HORIZONTAL STAB LOWER SKIN CATEGORY B REPAIR AT STABILIZER STA 193.90; PER SRM 55-10-01-2R-11 REPAIR 11. <BR>THIS REPAIR HAS REPEAT INSPECTIONS EVERY 9;000 FLIGHT CYCLES TO ACCOMPLISH A DETAILED VISUAL INSPECTION AND AN LFEC INSPECTION; UNTIL REPAIR HAS REACHED AN INSPECTION THRESHOLD OF 56;000 TOTAL FLIGHT CYCLES.;[02] RII- VERIFIED STEP 1.

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