Service difficulty report · Rib · Boeing 737*

Difficulty date
August 18, 2021
Submitted
September 21, 2021
Operation
Air carrier
Aircraft
N758SW
Make and model
Boeing 737*
Aircraft serial
27873
Aircraft time
74,045 hours, 43,671 cycles
Part
Rib
Condition
Cracked
Location
L/H Horiz. 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 129.50 AT 18 INCHES OF FRONT SPAR LT HORIZONTAL STAB ; 2021-384030 / [01] REMOVED INSPAR RIB 129.50 HORIZONTAL STAB AREA AND FASTENER IAW B737-700 SRM 51-40-02.; [02] VERIFYED STEP 1; [03] PERFORM CUT OUT DAMAGE : PERFORMED CUT OUT DAMAGE FROM VERTICAL STIFFENER OF THE RIB LOCATED RIB 129.50 AT 18 INCH OF FRONT SPAR ILIZER; [19] STEP 18 CERTIFIED RII.; [20] INSTALLED REPAIR PART;ANGLE (1E/A);FILLER. (1E/A);T-SECTION (1E/A); SHIM (2E/A); AND FASTENER ON INSPAR RIB LOC.STAB STA 129.50 AND AT 18 INCH FROM FRONT SPAR AT LT HORIZONTAL STABILIZER IAW B737-700 55-10-09-2R-5 REPIAR 5; [21] PERFORMED REPAIR ON INSPAR RIB 129.50 AT 18 INCHES OF FRONT SPAR LT HORIZONTAL STAB IAW B737-700 55-10-09-2R-5 REPIAR 5 THIS REPAIR IS CAT,NG,NRC,2021-09-07 21:23:35,22Y,N,,0,0,,CRACK INSPAR RIB 129.50 AT 18 INCHES OF FRONT SPAR LT HORIZONTAL STAB ; 2021-384030"