Service difficulty report · Frame · Boeing 75724APF

Difficulty date
September 4, 2026
Submitted
November 3, 2026
Operation
Air carrier
Aircraft
N463UP
Make and model
Boeing 75724APF
Aircraft serial
28267
Aircraft time
40,341 hours, 21,495 cycles
Part
Frame
Part number
148N160578
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

MAJOR REPAIR, AFT FUSLAGE FRAME STA 1963 FWD AND AFT SIDES AND ALL ATTACHING STRUCTURE CIRCUMFERENTIALLY HAVE AREAS OF CORROSION AND LARGE AREAS OF MISSING PROTECTIVE FINISH AND TOPCOAT. REMOVED 1EA ANGLE TO FACILITATE REMOVAL CORROSION ON FRAME AT STA 1963 BTW LBL3 AND RBL3 IAW SRM 51-40-02-0G-0. ACCOMPLISHED REPAIR IAW EO-99087-REQ1 AND EA 757-5380-01-B0864, REV IR.

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