Service difficulty report · Doubler · Boeing 7377Q8

Difficulty date
February 5, 2024
Submitted
March 12, 2024
Operation
Air carrier
Aircraft
N7873A
Make and model
Boeing 7377Q8
Aircraft serial
29350
Aircraft time
54,831 hours, 30,421 cycles
Part
Doubler
Part number
UNKNOWN
Condition
Cracked
Location
Zn 100 Fus Lower
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

GROUND POWER DOOR INTERNAL DOUBLER TORN;CRACK FWD LOWER CORNER<[01] ACCOMPLISHED PERMANENT REPAIR CATEGORY B AT EXTERNAL POWER RECEPTACLE CUTOUT AS PER B737-700 SRM 53-10-15-2R-5 REPAIR 5. REF TO STEP 13 FOR FURTHER INSPECTION REQUIREMENTS.;[02] VERIFIED FINAL STEP 1 RII;[03] REJECT....CORRECTIVE ACTION MISSING THRESHOLD FLIGHT CYCLES AND NDT FLIGHT CYCLES. CORRECTIVE ACTION BUYBACK TIMES DOES NOT MATCH; SHOULD BE LATE ENTRY. GENERATED TASK CARD [TTG8Q00RTN49];[04] -LATE ENTRY- IN ADDITION TO STEP 1: ACCOMPLISHED PERMANENT REPAIR CATEGORY B AT EXTERNAL POWER RECEPTACLE CUTOUT AS PER B737-700 SRM 53-10-15-2R-5 REPAIR 5. INSPECTION REQUIREMENTS AS FOLLOW: 50;000 CYC INSPECTION THRESHOLD; LFEC; HFEC AND DVI EVERY 6;000 CYC.;[05] VERIFIED STEP 4;[06] CERTIFIED WORK STEPS ACCOMPLISHED.

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