Service difficulty report · Rib · Boeing 73779L

Difficulty date
March 22, 2024
Submitted
April 23, 2024
Operation
Air carrier
Aircraft
N7889A
Make and model
Boeing 73779L
Aircraft serial
34023
Aircraft time
45,242 hours, 27,230 cycles
Part
Rib
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 INSPAR RIB 120.30 LOCATED AT 36 INCHES OF FRONT SPAR AT RT HORIZONTAL STABILIZER 2024-211637<[01] TOOL USED IN STEP 3: EDDY CURRENT INSTRUMENT P/N: NORTEC 600D; S/N: 210138503; DUE DATE: 21-JUL-24. ELECTRONIC CALIPER P/N: 500-197-30 S/N: A23272273 DUE DATE: 15-JAN-25;[02] TOOL USED IN STEP 4: EDDY CURRENT INSTRUMENT P/N: NORTEC 600D; S/N: 210138503; DUE DATE: 21-JUL-24;[03] ON STEPS 6 AND 7 EDDY CURRENT EQUIPMENT USED P/N: NORTEC 600D; S/N: 220273012; DUE DATE: 09-JAN-25.;[04] EQUIPMENT P/N XRP-3000; S/N 1859843; DUE DATE 24-JUL-24 WAS USED ON STEP 10;[05] PERFORMED PERMANENT REPAIR ON INSPAR RIB 120.30 AT 36 INCHES OF FRONT SPAR AT RT HORIZONTAL STABILIZER; IAW BOEING 737-700 SRM 55-10-09-2R-5 REPAIR 5 FIGURE 204 SHEET:1 TABLE 201; SRM 51-40-02 SEE INDIVIDUAL SIGN OFF BELOW.;[06] PERFORMED PERMANENT REPAIR ON INSPAR RIB 120.30 AT 36 INCHES OF FRONT SPAR AT RT HORIZONTAL STABILIZER; IAW BOEING 737-700 SRM 55-10-09-2R-5 REPAIR 5 FIGURE 204 SHEET:1 TABLE 201; SRM 51-40-02 SEE INDIVIDUAL SIGN OFF BELOW.<BR>RII

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