Service difficulty report · Gusset · Boeing 75724APF

Difficulty date
September 15, 2026
Submitted
October 6, 2026
Operation
Air carrier
Aircraft
N463UP
Make and model
Boeing 75724APF
Aircraft serial
28267
Aircraft time
40,335 hours, 21,491 cycles
Part
Gusset
Part number
148N661498710
Condition
Corroded
Location
Zone 200
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

WHILE EVALUATING JCW T3F18E009L4M8, FOUND CORROSION AT BS 1885, BULKHEAD FWD SIDE SERVICE DOOR LATCH FITTINGS. INSTALLED 4EA NEW GUSSETS P/N 148N6614U9 B/N 4512167, PN 148N6614U8 B/N 4512168 P/N 148N6614-7SAAU, P/N 148N6614-10SAAU AND 2EA FITTINGS AT APU LOWER FIREWALL STA 1885.2 BETWEEN LBL 5 TO RBL5 IAW B757-200PF SRM 51-40-02-0G-0 AND DWG 148N8402.

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