Service difficulty report · Strap · Boeing 75724APF

Difficulty date
April 11, 2026
Submitted
May 1, 2026
Operation
Air carrier
Aircraft
N421UP
Make and model
Boeing 75724APF
Aircraft serial
25281
Aircraft time
35,922 hours, 23,455 cycles
Part
Strap
Part number
148N31388000
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

CORRODED EXISTING FILLER REPAIR AT FS 1825 RBL 3R TO 6R EXISTING MIDDLE STRAP REPAIR ON APU AIR INTAKE INLET CUTOUT AFT STRAP. REMOVE THE EXISTING REPAIR OF APU INLET DOOR MIDDLE STRAP P/N: 148N3138-8000 INSTALLED AT STA 1825 BETWEEN S-3R AND S-6R AND ACCOMPLISH THE REPAIR SRM REV 124, 53-80-15-2R-1, DETAIL I. INSTALLED NEW REPAIR PARTS ON APU AIR INTAKE IAW SRM 53-80--15-2R-1.

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