Service difficulty report · Rib · Boeing 7377BD

Difficulty date
May 12, 2022
Submitted
June 7, 2022
Operation
Air carrier
Aircraft
N7734H
Make and model
Boeing 7377BD
Aircraft serial
33923
Aircraft time
52,074 hours, 28,006 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

RH HORIZONTAL STABILIZER RIB# 5 STIFFENER 4 CRACK. CUT OUT DAMAGED AREA FROM VERTICAL STIFFENER PER B737-700 SRM 55-10-09-2R-4 REPAIR 4 FIG. 202.CUT OUT DAMAGED AREA AT WEB PER B737-700 SRM 55-10-09-2R-4 REPAIR 4 FIG. 202. PERFORMED HFEC AT CUT OUT IAW NDTM PART 6; 51-00-00 PROCEDURE 23. NO CRACKS PERFORMED HFEC HOLE PROBE INSPECTION ON ALL REMOVED FASTENER LOCATIONS WITHIN REPAIR AREA IAW NDTM PART 6; 51-00-00; PROCEDURE 16. NO CRACKS. ACCOMPLISHED A GENERAL VISUAL INSPECTION OF REWORKED AREAS. NO DEFECTS NOTED.TREATED AND PRIMED REPAIR PARTS AND REWORKED AREA PER B737-700 SRM 51-20-01-0G-0 AND AMM 51-21-72-370-8O4. INSTALLED REPAIR PARTS AT R/H HORIZ. STAB. RIB #5 STIFFENER 4 PER B737-700 SRM 55-10-09-2R-4 FIG. 202 DETAIL A.

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