Service difficulty report · Door · Boeing 7378H4

Difficulty date
June 6, 2026
Submitted
June 11, 2026
Operation
Air carrier
Aircraft
N8512U
Make and model
Boeing 7378H4
Aircraft serial
38816
Aircraft time
31,659 hours, 15,864 cycles
Part
Door
Condition
Cracked
Location
Zone 800
Stage of operation
IN
How discovered
V
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

RIGHT MLG INNER DOOR GUSSET HAS POSSIBLE CRACK FWD OF AFT INNER-DOOR, MID-DOOR HINGE. VERIFIED 0.3IN CRACK NOT FULLY THRU REF NDT PART 6 51-00-00 PROC 23. MACHINED WEB TO REMOVE CRACK IN RT MLG INNER DOOR IAW SRM 52-80-02-1A-2. COMPLETED HIGH FREQ. REF. NDT PART 6 51-00-01 PROC 23. NO CRACK FOUND, NO DAMAGE NOTED. FLAP PEENED THE BLENDED SURFACES IAW SRM 51-20-06. APPLIED CHEMICAL CONVERSION COATING TO REWORKED AREA IAW SRM 51-20-01, APPLIED TWO LAYERS OF BMS 10-11 TYPE1 PRIMER IAW SRM 51-20-01. APPLIED DECORATIVE FINISH IAW AMM 51-21-73. INSTALLED INBOARD RT MLG DOOR IAW AMM 32-13-11.

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