Service difficulty report · Skin · Boeing 7377H4

Difficulty date
November 4, 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
Skin
Condition
Delaminated
Location
Nr 1 Nacelle Te
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

#1 ENGINE IB THRUST REV MID TRAILING EDGE AREA DELAMINATED. 8-25 ; / [01] CUT OUT THE DAMAGED SKING A CIRCULAR SHAPE; NO CORE DAMAGED AT #1 ENG IB TRUST REVERSER MID TRAILING EDGE. REF B737-700 SRM 54-30-01-2R-1 PARAGRAPH 4 C (2). PREPARED AREA TO APPLY DRY OUT AT REPAIR AREA. REF B737-700 SRM 51-70-04-2R-6 PARAGRAPH 4 C.; [02] VERIFIED STEP 1 AND OK TO APPLY DRY OUT AT REPAIR AREA; [03] PREPARED THE DAMAGED AREA TO APPLY THE FABRIC REPAIR PLIES . REF B737-700 SRM 51-70-04-2R-6 PARAGRAPH 4 D.; [04] APPLIED DRY OUT AT REPAIR AREA. REF B737-700 SRM 51-70-04-2R-6 PARAGRAPH 4 C.; [05] VERIFIED 3-4. OK TO INSTALL REPAIR.; [06] APPLIED THE FABRIC REPAIR PLIES AT DAMAGED AREA . REF B737-700 SRM54-30-01-2R-1 AND SRM 51-70-04-2R-6 PARAGRAPH 4 E; FAND G. PERFORMED VISUAL INSPECTION AND TAP TEST INSPECTION ARROUND THE REPAIR AREA NO DELALAMINATION FOUND REF B737-700 NDT PART 1 51-05-01 PARAGRAPH 5 TAP TEST TOOL ST 8842.; [07] VERIFIED STEP 6; [08] OK TO APPLY FINISH; [09] APPLIED FINISH AT REPAIR AREA ON #1 ENG IB TRUST REVERSER MID TRAILING EDGE. REF B737-700 SRM 51-70-04-2R-6 PARAGRAPH 4 P.; [10] VERIFIED STEP 9

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