Service difficulty report · Blower · Boeing 7878

Difficulty date
December 17, 2025
Submitted
December 19, 2025
Operation
Air carrier
Aircraft
N783AV
Make and model
Boeing 7878
Aircraft serial
37505
Aircraft time
39,044 hours, 5,327 cycles
Engine
Rroyce TRENT1000D2
Engine time
32,549 hours, 4,387 cycles
Part
Blower
Condition
Failed
Location
Toilet Vacuum
Stage of operation
CL
How discovered
V
Nature of condition
J
Precautionary procedure
A

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

What was found

DURING FLIGHT AND ABOVE 16000 FT RIGHT SID TOILETS DIDNT WORK UPON INSPECTION OF THE CB PAGE CE38-32-804 WASTE SYS-R CB WAS FOUND TRIP AND LOUD BE RESET AFTER TWO ATTEMP TOILETS IAW AMM DMC-B787-A-38-32-61-02A-520A-A/720A-A THE VACUUM BLOWER, SIDE RH WAS REMOVED AND REPLACED. TEST SATISFACTORY PASSED. IAW AMM DMC-B787-A-24-71-05-00A-520A-A/720A-A THE POWER MODULE SLOT #3 OF THE RPDU 42 WAS REMOVED AND REPLACED.

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