Service difficulty report · Rib · Boeing 7377BD

Difficulty date
September 14, 2023
Submitted
October 20, 2023
Operation
Air carrier
Aircraft
N7720F
Make and model
Boeing 7377BD
Aircraft serial
33922
Aircraft time
57,303 hours, 30,551 cycles
Part
Rib
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 INSPAR RIB STAB STA 129.5 AT 27INCH OF FRONT SPAR LT HORIZONTAL STAB 2023-584461<[01] TOOL P/N: NORTEC 500D; S/N: N500X1693P030456; CAL DUE: 12-MAR-24.;[02] TOOL P/N: NORTEC 500D; S/N: N500X1693P030456; CAL DUE: 12-MAR-24.;[03] TOOL USED EDDY CURRENT EQUIPMENT PN: NORTEC500D; SN: N500X1693P030456 DUE DATE: 12 MAR 24.;[04] PERFORMED REPAIR INSPAR RIB STAB STA 129.5 AT 27 INCH OF FRONT SPAR LT HORIZONTAL STAB IAW B737-700 SRM 55-10-09-2R-4 REPAIR 4 FIGURE 202. SEE INDIVIDUAL SIGNOFF BELOW.;[05] CERTIFIED STEP 4 COMPLETED <BR>RII

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