Service difficulty report · Rib · Boeing 737*

Difficulty date
October 11, 2021
Submitted
November 23, 2021
Operation
Air carrier
Aircraft
N421LV
Make and model
Boeing 737*
Aircraft serial
32452
Aircraft time
66,257 hours, 38,933 cycles
Part
Rib
Condition
Cracked
Location
Rh Hor 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 LOCATED SS120.30 34.5 INCH FROM FRONT SPAR WEB AT RT HORIZONTAL STABILIZER ; 2021-460690 / [01] TOOL USED EDDY CURRENT EQUIPMENT PN. NORTEC 600D; SN. 210138203; DUE DATE: 05-MAR-22; [02] PERFORMED PERMANENT REPAIR ON INSPAR RIB LOC. STAB STA 120.30 MORE 34.5 INCHES FROM FRONT SPR WEB AT RT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5; FIGURE 203.; [03] CORRECTED STEP 2<BR>PERFORMED PERMANENT REPAIR ON INSPAR RIB LOC. STAB STA 120.30 MORE 34.5 INCHES FROM FRONT SPR WEB AT RT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5; FIGURE 203. SEE INDIVIDUAL SIGNOFFS BELOW; [04] PERFORMED PERMANENT REPAIR ON INSPAR RIB LOC. STAB STA 120.30 MORE 34.5 INCHES FROM FRONT SPR WEB AT RT HORIZONTAL STABILIZER IAW B737-700 SRM 55-10-09-2R-5 REPAIR 5; FIGURE 203. SEE INDIVIDUAL SIGNOFFS BELOW<BR>RII