Service difficulty report · Fitting · Boeing 7377H4

Difficulty date
November 18, 2021
Submitted
January 10, 2022
Operation
Air carrier
Aircraft
N770SA
Make and model
Boeing 7377H4
Aircraft serial
30589
Aircraft time
69,290 hours, 41,022 cycles
Part
Fitting
Condition
Corroded
Location
Vert To Fuse
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

VERTICAL STAB FRONT SPAR RIGHT FWD FUSELAGE FITTING FWD SURFACE HAS LIGHT PITTING ON SURFACE. ; / [01] PERFORMED PENETRANT INSPECTION ON VERTICAL STAB.FRONT SPAR RIGHT FWD FUSELAGE FITTING FWD.SURFACE IAW SOPM 20-20-02. NO CRACKS.; [02] PERFORMED HFEC ROTO ON VERTICAL STAB.FRONT SPAR RIGHT FWD FUSELAGE FITTING IAW NDTM PART 6;51-00-00 PROCEDURE 16. NO CRACKS.; [03] REMOVED BUSHING AT FUSELAGE VERTICAL STAB. FRONT SPAR . RIGHT SIDE FWD FITTING AS PER B737 SOPM 20-50-03.; [04] REMOVED CORROSION AS FUSELAGE VERTICAL STAB . RIGHT SIDE FWD FITTING FWD FACE ; SPOT FACE AREA ; ORIGINAL MATERIAL 0.5000'' ; MATERIAL REMOVED IS 0.0050'' AND SPOT FACE SIZE IS 1.7000'' ; FITTING THICKNESS REMAINING IS 0.4950'' AS PER SRM 51-10-02-0G-0.; [05] CORRECTION -------<BR>REMOVED CORROSION AS FUSELAGE VERTICAL STAB . RIGHT SIDE FWD FITTING FWD FACE ; SPOT FACE AREA ; ORIGINAL MATERIAL 0.5700'' ; MATERIAL REMOVED IS 0.0012'' AND SPOT FACE SIZE IS 1.7000'' ; FITTING THICKNESS REMAINING IS 0.4950'' AS PER SRM 51-10-02-0G-0.; [06] CORRECTION FOR STEP 5<BR>ORIGINAL MATERIAL - 0.5100'' <BR><BR>MATERIAL REMOVE - 0.0150''; [07] VERIFIED 3; 5; 6.; [08] ISSUED SUMMARY EA 21-153-03537; [09] CORROSION REMOVED AND AREA INSPECTED ; SHOT/FLAP PEEN AS PER EA 21-153-03537.; [10] NEW BUSHING WAS FABRICATED AND INSTALLED AND AREA WHERE CORROSION WAS REMOVED WAS LEFT AS IS AS PER EA 21-153-03537. - BUSHING WAS FABRICATED BY PREMIER AEROSPACE PO -1748138.; [11] VERIFIED 9 AND 10.

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