Service difficulty report · Exhaust Vent · Boeing 777222

Difficulty date
June 10, 2022
Submitted
June 10, 2022
Operation
Air carrier
Aircraft
N772UA
Make and model
Boeing 777222
Aircraft serial
26930
Aircraft time
96,993 hours, 17,788 cycles
Part
Exhaust Vent
Part number
NA
Part serial
NA
Condition
Corroded
Location
Aft Vaccum Blowe
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FUS. LOWER SURFACE AFT VACUUM BLOWER EXHUST VENT PORT SURROUND F ND CORROSION. WERE ZERO TIMED WHICH SETS THE INITIAL INSPECTION AT 30,000 INSPECTIONS AT 4,000 FLIGHT CYCLES THEREAFTER. FLIGHT CYCLES SINCE THE REPAIR WAS INSTALLED AND REPETITIVE THE SKIN WAS REPAIRED PER SRM 53-70-01-2R-1 REPAIR 1. THIS IS A CATEGORY B REPAIR REQUIRING REPEAT INSPECTIONS. FASTENER HOLES