Service difficulty report · Support Fitting · Boeing 76737D

Difficulty date
August 23, 2025
Submitted
August 25, 2025
Operation
Air carrier
Aircraft
N1327A
Make and model
Boeing 76737D
Aircraft serial
26328
Aircraft time
96,781 hours, 16,602 cycles
Part
Support Fitting
Part number
182T7309
Condition
Corroded
Location
Zone 300
Part time
16,602 cycles
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

DURING THE C-6 MAINT VISIT, CORROSION FOUND ON LT HORIZONTAL STAB LOWER BLADE SEAL SUPPORT FITTINGS. NR 7 FITTINGS TOTAL WERE FOUND TO HAVE CORROSION BETWEEN THE BLADE SEAL & MATING FLANGE OF SUPPORT FITTINGS & WITHIN THE SUPPORT ATTACHMENT HOLES. ALL CORROSION WAS REMOVED BY BLENDING OF THE FLANGE SURFACE AND DRILLING OF THE ATTACHMENT HOLES. THE 767-300 SRM DOES NOT PROVIDE ANY LIMITS OR REPAIRS FOR THESE SUPPORT FITTINGS, AND WE ARE CURRENTLY UNABLE TO OBTAIN REPLACEMENTS.REPAIRED IAW REPAIRED LH IB SIDE HORIZONTAL STAB SEAL ATTACHMENT BRACKET #7 PER FVCI EO 25129-3 REV:IR THAT WAS ACCOMPLISHED ON NR40760.ABX FORM M-289 AND FAA FORM 337 ATTACHED. REF.ABX-REA-5510-65830-00.

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