Service difficulty report · Antenna · Boeing 76734AF

Difficulty date
August 3, 2026
Submitted
August 7, 2026
Operation
Air carrier
Aircraft
N331UP
Make and model
Boeing 76734AF
Aircraft serial
27757
Aircraft time
69,295 hours, 23,159 cycles
Part
Antenna
Part number
174T110332
Part serial
000104
Condition
Eroded
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

FOUND V.S.T HF ANTENNA (321E) EROSION. REMOVE THE EROSION MATERIALS AND CLEAN IAW SRM 55-30-01-2R-6 REFER TO SRM 51-70-07-0G-0 REV. 95. BOND THE REPAIR PLIES WITH FILM ADHESIVE CURED AT 260°F FOR 130 MINUTES WITH MINIMUM VACUUM OF 22 IN/HG.

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