Service difficulty report · Rib · Boeing 7377BD

Difficulty date
May 4, 2022
Submitted
June 6, 2022
Operation
Air carrier
Aircraft
N7735A
Make and model
Boeing 7377BD
Aircraft serial
34862
Aircraft time
51,916 hours, 27,874 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

RT HORIZONTAL STAB INSPAR RIB STA 120.10 (RIB 4 CRACK IN LOWER TRANSITION RADIOUS OF THE VERTICAL STIFFENER POSITION 4. / CRACK FOUND AT CUT OUT AREA OF STIFFENER #4 IAW NDTM PART 6; 51-00-00 PROCEDURE 23. LENGTH OF CRACK : 0.218' CUTOUT DAMAGED AT INSPAR RIB VERTICAL STIFFENER AREA AS PER B737-7 SRM 55-10-09-2R-5 FIG 204 DETAIL A.; FABRICATED REPAIR ANGLE AND REAPIR FILLER FROM 70 75-T6 0.063 ALSO FABRICATED REPAIR FILLER USING 7075-T6 0.025AS PER B737-700 SRM 51-10-09-2R REPAIR 5;TREATED AND PRIMED REPAIR PARTS AND CUT OUT AREAS AS PER B737-700 SRM 51-20-01-0G-0-A; INSTALLED REPAIR PARS AT RT HORIZONTAL STAB RIB #4 VERTICAL STIFFENER POSITION 4AS PERB 737-700 SRM 55-10-09-22R5

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