Service difficulty report · Skin · Boeing 73776Q

Difficulty date
April 15, 2023
Submitted
May 31, 2023
Operation
Air carrier
Aircraft
N7815L
Make and model
Boeing 73776Q
Aircraft serial
30288
Aircraft time
60,418 hours, 35,015 cycles
Part
Skin
Part number
UNKNOWN
Condition
Cracked
Location
Zn 300 Stabilize
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 INDICATION FOUND ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 184.70 RIB AND 8 INCH. FROM REAR SPAR. INBOARD SIDE OF RIB. CRACK LENGTH = 0.400 INCH. APPROX. 2023-257980<[01] TOOL USED: EDDY CURRENT EQUIPMENT; P/N: NORTEC600D; S/N: 210138503; CAL DUE DATE: 19-MAY-23;[02] TOOL USED: EDDY CURRENT EQUIPMENT; P/N: NORTEC600D; S/N: 210138503; CAL DUE DATE: 19-MAY-23;[03] EDDY CURRENT EQUIPMENT USED P/N: NORTEC 600D; S/N: 200053402 AND DUE DATE: 13-MAY-23.;[04] REPAIRED LT HORIZONTAL STABILIZER LOWER INSPAR SKIN BTW SSTA 175.50 & SSTA 193.90 IAW 23-155-01478. SEE INDIVIDUAL SIGN OFF BELOW;[05] REPAIRED LT HORIZONTAL STABILIZER LOWER INSPAR SKIN BTW SSTA 175.50 & SSTA 193.90 IAW 23-155-01478. SEE INDIVIDUAL SIGN OFF BELOW AS RII

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