Service difficulty report · Rib · Boeing 73773V

Difficulty date
July 18, 2023
Submitted
August 15, 2023
Operation
Air carrier
Aircraft
N7839A
Make and model
Boeing 73773V
Aircraft serial
30243
Aircraft time
63,332 hours, 39,016 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

LEFT HAND HORIZONTAL STABILIZER INSPAR RIB; AT STABILIZER STATION 111.10; 3RD VERTICAL STIFFENER IS CRACKED.<[01] TABLE MEASUREMENTS;[02] CUT AND REMOVED DAMAGE ON AREA LEFT HAND HORIZONTAL STABILIZER INSPAR RIB; AT STABILIZER STATION 111.10; 3RD VERTICAL STIFFENER IAW SRM 55-10-09-2R-4; FABRICATED REPAIR PARTS AND DRILLED HOLES (1) T-SECTION FROM 60-5872#7075T6511 LOT#1476286-1; (2) ANGLE FROM BAC1490-2793 # 7075T62 LOT 1491233-1; SHIM FROM 7075T6#0.020 CLAD LOT 1381332-1 IAW SRM 51-40-05 AND SRM 55-10-09-2R-4 OK TO ALODINE AND PRIMER;[08] DO A GENERAL VISUAL INSPECTION OF ALL AREAS WHITIN THE REPAIR AREA FOR CORROSION OR ANY OTHER DEFECTS IAW SRM 55-10-09-2R-4 STEP 4.E.;[09] VERIFIED CORRECTION ACTION; ITEM NO. 7 & 8 COMPLETED. AND OK TO APPLY CHEMICAL CONVERTION; AND PRIMER.;[10] APPLIED CHEMICAL COATING AND PRIMER TO REPAIR PARTS AND BARE SURFACE AND EDGES OF RIB IAW SRM 51-20-01 AND SOPM 20-41-02 <BR>REQUIRE OK TO INSTALL REPAIR PARTS;[11] VERIFIED CORRECTION ACTION ITEM 10 COMPLETE; AND OK TO INSTALL REPAIR PARTS.;[12] INSTALLED REPAIR PARTS ON LEFT HAND HORIZONTAL STABILIZER INSPAR RIB; AT STABILIZER STATION 111.10; 3RD VERTICAL STIFFENER IAW SRM 55-10-09-2R-4;[13] VERIFIED COMPLETION OF CORRECTIVE ACTIONS 12 AND MEASUREMENT TABLE.

More about the Boeing 737-73V