Service difficulty report · Skin · Boeing 73776N

Difficulty date
December 23, 2023
Submitted
February 5, 2024
Operation
Air carrier
Aircraft
N7727A
Make and model
Boeing 73776N
Aircraft serial
32673
Aircraft time
56,480 hours, 28,904 cycles
Part
Skin
Part number
UNKNOWN
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

CRACK FOUND AT LT HORIZONTAL STABILIZER LOWER SKIN STAB STA 193.90; CRACK LENGTH 0.750'; I/B OF I/B FASTENER ROW; 16.5' FROM L/E. CRACK FOUND AT LT HORIZONTAL STABILIZER LOWER SKIN STAB STA 193.90 CRACK LENGTH 0.750' I/B OF I/B FASTENER ROW 16.5' FROM L/E.<[01] COMPLETED SME INSPECTION OF WORKMANSHIP AND PAPERWORK AUDIT.;[02] INSTALLED HORIZONTAL STAB. LOWER IN SPAR SKIN REPAIR AT L/H HORIZONTAL LOWER SKIN AT STA. 193.90; PER REF. SRM 55-10-01-2R-22; THIS IS CATEGORY B REPAIR.; NEED INSPECTIONS THRESHOLD AT 56;000 TOTAL FLIGHT CYCLES; AND REPEAT INSPECTIONS INTERVAL AT 9;000 FLIGHT CYCLES;[03] RII....VERIFIED CORRECTIVE ACTION.

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