Service difficulty report · Skin · Boeing 76734AF

Difficulty date
July 29, 2025
Submitted
August 6, 2025
Operation
Air carrier
Aircraft
N328UP
Make and model
Boeing 76734AF
Aircraft serial
27754
Aircraft time
68,299 hours, 23,040 cycles
Part
Skin
Part number
146T324115
Condition
Corroded
Location
Zone 100
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

CORROSION, FUSELAGE SKIN STA 1410 BETWEEN S-38R AND S-39R. RESPECTIVELY PART MARK THE REPAIR PART(S) PER BAC5307 CODE M AS BELOW. REPAIR FILLER: F2025A53M-1650-1, REPAIR DOUBLER: F2025A53M-1650-2; REPAIR TRIPLER: F2025A53M-1650-3. INSTALL THE REPAIR PARTS WITH BMS 5-95 SEALANT BETWEEN THE MATING SURFACES. INSTALL THE FASTENERS PER 767-300F SRM 51-40-02 AS SHOWN IN FIGURE 2. USE A COUNTERSINK REPAIR WASHER TO FILL ANY INITIAL COUNTERSINK IN THE SKIN. APPLY THE FINISH AS GIVEN IN 767 AMM 51-21-00.

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