Service difficulty report · Firewall · Boeing 75724APF

Difficulty date
August 25, 2026
Submitted
September 9, 2026
Operation
Air carrier
Aircraft
N441UP
Make and model
Boeing 75724APF
Aircraft serial
27386
Aircraft time
33,003 hours, 21,322 cycles
Part
Firewall
Part number
LJ76589
Condition
Cracked
Location
Zone 400
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

NR 1 ENG OTBD T/R INTERNAL TOP METALLIC PLATE IS CRACKED. REMOVED INTERNAL TOP METALLIC PLATE DAMAGED AND REMOVED SEAL RETAINER (FOR ACCESS). #1 ENG O/B T/R. IAW B757-200PF SRM 51-40-02-0G-0. INSTALLED INTERNAL TOP METALLIC PLATE AND SEAL RETAINER. IAW B757-200PF SRM 51-40-02-0G-0.

More about the Boeing 757-24APF