Service difficulty report · Pressure Deck · Boeing 7377H4

Difficulty date
June 23, 2021
Submitted
June 28, 2021
Operation
Air carrier
Aircraft
N750SA
Make and model
Boeing 7377H4
Aircraft serial
29802
Aircraft time
75,691 hours, 44,551 cycles
Part
Pressure Deck
Condition
Cracked
Location
Bs 664
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

CRACK ON HORIZONTAL PRESSURE DECK BS 664.5; LBL 31; WL 202. FOUND TO BE OUT OF LIMITS DUE TO NO ALLOWABLE LIMITS PER SRM 51-10-02. CUT AND REMOVED DAMAGED WEB IAW SRM 53-40-51-2R-2. PERFORMED A DVI AROUND THE INBD & OTBD SECTIONS OF DAMAGED BEADED PRESSURE WEB. NO DEFECTS NOTED IAW SRM 53-40-51-2R-2 STEP 4. D. (5). HFEC INSPECTED CUTOUT IAW NDTM PART 6 51-00-00 PROCEDURE 23 NO CRACKS NOTED. HFEC INSPECTED OPEN HOLES IAW 737 NDTM PART 6 51-00-00 PROCEDURE 16 AND PROCEDURE 17 NO CRACKS NOTED. TRIMMED AN ADDITIONAL .040' FROM CUT EDGE AS AN INSURANCE IAW SRM 53-40-51-2R-2 PARA. 4D(4). DRILLED AND TRIMMED TO SIZE ALL REPAIR PARTS.

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